andrew shan
3 years ago
committed by
GitHub
commit
cfd0ec1ad8
@ -1,7 +1,7 @@
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|||||||
# Change Log
|
# Change Log
|
||||||
---
|
---
|
||||||
|
|
||||||
- [Feature: Support custom rate limit reject response info](https://github.com/Tencent/spring-cloud-tencent/pull/128)
|
|
||||||
- [Feature: Optimize config server address](https://github.com/Tencent/spring-cloud-tencent/pull/130)
|
- [Feature: Support parse ratelimit rule expression labels.](https://github.com/Tencent/spring-cloud-tencent/pull/183)
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||||||
- [Feature: Remove spring-javaformat-maven-plugin](https://github.com/Tencent/spring-cloud-tencent/pull/131)
|
- [Feature: Router support request label.](https://github.com/Tencent/spring-cloud-tencent/pull/165)
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||||||
- [feat:refactor loadbalancer module as a basic module for router and circuit breaker.](https://github.com/Tencent/spring-cloud-tencent/pull/136)
|
- [Feature: Support router expression label](https://github.com/Tencent/spring-cloud-tencent/pull/190)
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@ -0,0 +1,8 @@
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# Change Log
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||||||
|
---
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||||||
|
|
||||||
|
- [Feature: Support custom rate limit reject response info](https://github.com/Tencent/spring-cloud-tencent/pull/128)
|
||||||
|
- [Feature: Optimize config server address](https://github.com/Tencent/spring-cloud-tencent/pull/130)
|
||||||
|
- [Feature: Remove spring-javaformat-maven-plugin](https://github.com/Tencent/spring-cloud-tencent/pull/131)
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||||||
|
- [feat:refactor loadbalancer module as a basic module for router and circuit breaker.](https://github.com/Tencent/spring-cloud-tencent/pull/136)
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|
- [feat:enable distribute rate limit](https://github.com/Tencent/spring-cloud-tencent/pull/139)
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@ -0,0 +1,5 @@
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# Change Log
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---
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- [fix:fix routes of gateway doesn't refresh bug.](https://github.com/Tencent/spring-cloud-tencent/pull/158)
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- [fix:Turn off automatic injection of Polars rule.](https://github.com/Tencent/spring-cloud-tencent/pull/162)
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@ -0,0 +1,5 @@
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# Change Log
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||||||
|
---
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- [fix:fix wrong context data storage.](https://github.com/Tencent/spring-cloud-tencent/pull/170)
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- [fix:fix route not refreshing bug when first instance of one service up.](https://github.com/Tencent/spring-cloud-tencent/pull/174)
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@ -0,0 +1,4 @@
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# Change Log
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||||||
|
---
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- [fix:fix wrong isAliveFlag config when creating new PolarisServer.](https://github.com/Tencent/spring-cloud-tencent/pull/179)
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@ -0,0 +1,86 @@
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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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||||||
|
*
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|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
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||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
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||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*/
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package com.tencent.cloud.polaris.discovery.refresh;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.TimeUnit;
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import com.tencent.cloud.polaris.discovery.PolarisDiscoveryHandler;
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import com.tencent.polaris.client.util.NamedThreadFactory;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.boot.context.event.ApplicationReadyEvent;
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import org.springframework.cloud.client.discovery.event.HeartbeatEvent;
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import org.springframework.context.ApplicationEventPublisher;
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import org.springframework.context.ApplicationEventPublisherAware;
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import org.springframework.context.ApplicationListener;
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import static com.tencent.cloud.polaris.discovery.refresh.PolarisServiceStatusChangeListener.INDEX;
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/**
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* Begin refresh when application is ready.
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*
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* @author Haotian Zhang
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*/
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public class PolarisRefreshApplicationReadyEventListener implements ApplicationListener<ApplicationReadyEvent>, ApplicationEventPublisherAware {
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private static final Logger LOG = LoggerFactory.getLogger(PolarisRefreshConfiguration.class);
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private static final int DELAY = 60;
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private final PolarisDiscoveryHandler polarisDiscoveryHandler;
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private final PolarisServiceStatusChangeListener polarisServiceStatusChangeListener;
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private final ScheduledExecutorService refreshExecutor;
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private ApplicationEventPublisher publisher;
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public PolarisRefreshApplicationReadyEventListener(PolarisDiscoveryHandler polarisDiscoveryHandler, PolarisServiceStatusChangeListener polarisServiceStatusChangeListener) {
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this.polarisDiscoveryHandler = polarisDiscoveryHandler;
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this.polarisServiceStatusChangeListener = polarisServiceStatusChangeListener;
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this.refreshExecutor = Executors.newSingleThreadScheduledExecutor(
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new NamedThreadFactory("polaris-service-refresh"));
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}
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@Override
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public void onApplicationEvent(ApplicationReadyEvent event) {
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// Register service change listener.
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polarisDiscoveryHandler.getSdkContext().getExtensions().getLocalRegistry()
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.registerResourceListener(polarisServiceStatusChangeListener);
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// Begin scheduled refresh thread.
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refresh();
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}
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/**
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* Start the refresh thread.
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*/
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public void refresh() {
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refreshExecutor.scheduleWithFixedDelay(() -> {
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try {
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// Trigger reload of gateway route cache.
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this.publisher.publishEvent(new HeartbeatEvent(this, INDEX.getAndIncrement()));
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}
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catch (Exception e) {
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LOG.error("refresh polaris service error.", e);
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}
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}, DELAY, DELAY, TimeUnit.SECONDS);
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}
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@Override
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public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
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this.publisher = applicationEventPublisher;
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}
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}
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@ -0,0 +1,48 @@
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|
/*
|
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|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*/
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||||||
|
package com.tencent.cloud.polaris.discovery.refresh;
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import com.tencent.cloud.polaris.context.ConditionalOnPolarisEnabled;
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import com.tencent.cloud.polaris.discovery.PolarisDiscoveryHandler;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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/**
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* Configuration for listening the change of service status.
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*
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* @author Haotian Zhang
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*/
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@Configuration(proxyBeanMethods = false)
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@ConditionalOnPolarisEnabled
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public class PolarisRefreshConfiguration {
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@Bean
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@ConditionalOnMissingBean
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public PolarisServiceStatusChangeListener polarisServiceChangeListener() {
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return new PolarisServiceStatusChangeListener();
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}
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@Bean
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@ConditionalOnMissingBean
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public PolarisRefreshApplicationReadyEventListener polarisServiceStatusApplicationReadyEventListener(
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PolarisDiscoveryHandler polarisDiscoveryHandler,
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PolarisServiceStatusChangeListener polarisServiceStatusChangeListener) {
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return new PolarisRefreshApplicationReadyEventListener(polarisDiscoveryHandler, polarisServiceStatusChangeListener);
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}
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}
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@ -0,0 +1,96 @@
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|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
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||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*/
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||||||
|
package com.tencent.cloud.polaris.discovery.refresh;
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import java.util.Set;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.stream.Collectors;
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|
import com.google.common.collect.Sets;
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import com.tencent.polaris.api.plugin.registry.AbstractResourceEventListener;
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import com.tencent.polaris.api.pojo.RegistryCacheValue;
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|
import com.tencent.polaris.api.pojo.ServiceEventKey;
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|
import com.tencent.polaris.client.pojo.ServiceInstancesByProto;
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||||||
|
import com.tencent.polaris.client.pojo.ServicesByProto;
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import org.slf4j.Logger;
|
||||||
|
import org.slf4j.LoggerFactory;
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||||||
|
|
||||||
|
import org.springframework.cloud.client.discovery.event.HeartbeatEvent;
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||||||
|
import org.springframework.context.ApplicationEventPublisher;
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||||||
|
import org.springframework.context.ApplicationEventPublisherAware;
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||||||
|
import org.springframework.util.CollectionUtils;
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|
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||||||
|
/**
|
||||||
|
* Change listener of Polaris service info. When service info is created or deleted, or, instance of service is from 0 to
|
||||||
|
*
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||||||
|
* @author Haotian Zhang
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||||||
|
*/
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||||||
|
public class PolarisServiceStatusChangeListener extends AbstractResourceEventListener implements ApplicationEventPublisherAware {
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||||||
|
|
||||||
|
/**
|
||||||
|
* Index of service info status.
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||||||
|
*/
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||||||
|
public static final AtomicLong INDEX = new AtomicLong(0);
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||||||
|
|
||||||
|
private static final Logger LOG = LoggerFactory.getLogger(PolarisServiceStatusChangeListener.class);
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||||||
|
|
||||||
|
private ApplicationEventPublisher publisher;
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|
|
||||||
|
@Override
|
||||||
|
public void onResourceUpdated(ServiceEventKey svcEventKey, RegistryCacheValue oldValue,
|
||||||
|
RegistryCacheValue newValue) {
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||||||
|
if (newValue.getEventType() == ServiceEventKey.EventType.SERVICE) {
|
||||||
|
if (oldValue instanceof ServicesByProto && newValue instanceof ServicesByProto) {
|
||||||
|
LOG.debug("receive service={} change event", svcEventKey);
|
||||||
|
Set<String> oldServiceInfoSet = ((ServicesByProto) oldValue).getServices().stream()
|
||||||
|
.map(i -> i.getNamespace() + "::" + i.getService()).collect(Collectors.toSet());
|
||||||
|
Set<String> newServiceInfoSet = ((ServicesByProto) newValue).getServices().stream()
|
||||||
|
.map(i -> i.getNamespace() + "::" + i.getService()).collect(Collectors.toSet());
|
||||||
|
|
||||||
|
Sets.SetView<String> addServiceInfoSetView = Sets.difference(newServiceInfoSet, oldServiceInfoSet);
|
||||||
|
Sets.SetView<String> deleteServiceInfoSetView = Sets.difference(oldServiceInfoSet, newServiceInfoSet);
|
||||||
|
|
||||||
|
if (addServiceInfoSetView.isEmpty() && deleteServiceInfoSetView.isEmpty()) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
LOG.info("Service status is update. Add service of {}. Delete service of {}", addServiceInfoSetView, deleteServiceInfoSetView);
|
||||||
|
|
||||||
|
// Trigger reload of gateway route cache.
|
||||||
|
this.publisher.publishEvent(new HeartbeatEvent(this, INDEX.getAndIncrement()));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if (newValue.getEventType() == ServiceEventKey.EventType.INSTANCE) {
|
||||||
|
if (oldValue instanceof ServiceInstancesByProto && newValue instanceof ServiceInstancesByProto) {
|
||||||
|
LOG.debug("receive service instances={} change event", svcEventKey);
|
||||||
|
ServiceInstancesByProto oldIns = (ServiceInstancesByProto) oldValue;
|
||||||
|
ServiceInstancesByProto newIns = (ServiceInstancesByProto) newValue;
|
||||||
|
if ((CollectionUtils.isEmpty(oldIns.getInstances()) && !CollectionUtils.isEmpty(newIns.getInstances())) ||
|
||||||
|
(!CollectionUtils.isEmpty(oldIns.getInstances()) && CollectionUtils.isEmpty(newIns.getInstances()))) {
|
||||||
|
LOG.info("Service status of {} is update.", newIns.getService());
|
||||||
|
|
||||||
|
// Trigger reload of gateway route cache.
|
||||||
|
this.publisher.publishEvent(new HeartbeatEvent(this, INDEX.getAndIncrement()));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
|
||||||
|
this.publisher = applicationEventPublisher;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,72 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.ratelimit;
|
||||||
|
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashSet;
|
||||||
|
import java.util.List;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import com.tencent.cloud.common.util.ExpressionLabelUtils;
|
||||||
|
import com.tencent.cloud.polaris.context.ServiceRuleManager;
|
||||||
|
import com.tencent.polaris.client.pb.ModelProto;
|
||||||
|
import com.tencent.polaris.client.pb.RateLimitProto;
|
||||||
|
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* resolve labels from rate limit rule.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-13
|
||||||
|
*/
|
||||||
|
public class RateLimitRuleLabelResolver {
|
||||||
|
|
||||||
|
private final ServiceRuleManager serviceRuleManager;
|
||||||
|
|
||||||
|
public RateLimitRuleLabelResolver(ServiceRuleManager serviceRuleManager) {
|
||||||
|
this.serviceRuleManager = serviceRuleManager;
|
||||||
|
}
|
||||||
|
|
||||||
|
public Set<String> getExpressionLabelKeys(String namespace, String service) {
|
||||||
|
RateLimitProto.RateLimit rateLimitRule = serviceRuleManager.getServiceRateLimitRule(namespace, service);
|
||||||
|
if (rateLimitRule == null) {
|
||||||
|
return Collections.emptySet();
|
||||||
|
}
|
||||||
|
|
||||||
|
List<RateLimitProto.Rule> rules = rateLimitRule.getRulesList();
|
||||||
|
if (CollectionUtils.isEmpty(rules)) {
|
||||||
|
return Collections.emptySet();
|
||||||
|
}
|
||||||
|
|
||||||
|
Set<String> expressionLabels = new HashSet<>();
|
||||||
|
for (RateLimitProto.Rule rule : rules) {
|
||||||
|
Map<String, ModelProto.MatchString> labels = rule.getLabelsMap();
|
||||||
|
if (CollectionUtils.isEmpty(labels)) {
|
||||||
|
return Collections.emptySet();
|
||||||
|
}
|
||||||
|
for (String key : labels.keySet()) {
|
||||||
|
if (ExpressionLabelUtils.isExpressionLabel(key)) {
|
||||||
|
expressionLabels.add(key);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return expressionLabels;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,184 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router;
|
||||||
|
|
||||||
|
import java.util.ArrayList;
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.List;
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import com.netflix.client.config.IClientConfig;
|
||||||
|
import com.netflix.loadbalancer.AbstractLoadBalancerRule;
|
||||||
|
import com.netflix.loadbalancer.AvailabilityFilteringRule;
|
||||||
|
import com.netflix.loadbalancer.BestAvailableRule;
|
||||||
|
import com.netflix.loadbalancer.ILoadBalancer;
|
||||||
|
import com.netflix.loadbalancer.RandomRule;
|
||||||
|
import com.netflix.loadbalancer.RetryRule;
|
||||||
|
import com.netflix.loadbalancer.RoundRobinRule;
|
||||||
|
import com.netflix.loadbalancer.Server;
|
||||||
|
import com.netflix.loadbalancer.WeightedResponseTimeRule;
|
||||||
|
import com.netflix.loadbalancer.ZoneAvoidanceRule;
|
||||||
|
import com.tencent.cloud.common.metadata.MetadataContext;
|
||||||
|
import com.tencent.cloud.common.pojo.PolarisServer;
|
||||||
|
import com.tencent.cloud.polaris.loadbalancer.LoadBalancerUtils;
|
||||||
|
import com.tencent.cloud.polaris.loadbalancer.PolarisWeightedRule;
|
||||||
|
import com.tencent.cloud.polaris.loadbalancer.config.PolarisLoadBalancerProperties;
|
||||||
|
import com.tencent.polaris.api.pojo.Instance;
|
||||||
|
import com.tencent.polaris.api.pojo.ServiceInfo;
|
||||||
|
import com.tencent.polaris.api.pojo.ServiceInstances;
|
||||||
|
import com.tencent.polaris.router.api.core.RouterAPI;
|
||||||
|
import com.tencent.polaris.router.api.rpc.ProcessRoutersRequest;
|
||||||
|
import com.tencent.polaris.router.api.rpc.ProcessRoutersResponse;
|
||||||
|
import org.apache.commons.lang.StringUtils;
|
||||||
|
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Service routing entrance.
|
||||||
|
*
|
||||||
|
* Rule routing needs to rely on request parameters for server filtering,
|
||||||
|
* and {@link com.netflix.loadbalancer.ServerListFilter#getFilteredListOfServers(List)}
|
||||||
|
* The interface cannot obtain the context object of the request granularity,
|
||||||
|
* so the routing capability cannot be achieved through ServerListFilter.
|
||||||
|
*
|
||||||
|
* And {@link com.netflix.loadbalancer.IRule#choose(Object)} provides the ability to pass in context parameters,
|
||||||
|
* so routing capabilities are implemented through IRule.
|
||||||
|
*
|
||||||
|
* @author Haotian Zhang, lepdou
|
||||||
|
*/
|
||||||
|
public class PolarisLoadBalancerCompositeRule extends AbstractLoadBalancerRule {
|
||||||
|
|
||||||
|
private final static String STRATEGY_RANDOM = "random";
|
||||||
|
private final static String STRATEGY_ROUND_ROBIN = "roundRobin";
|
||||||
|
private final static String STRATEGY_WEIGHT = "polarisWeighted";
|
||||||
|
private final static String STRATEGY_RETRY = "retry";
|
||||||
|
private final static String STRATEGY_RESPONSE_TIME_WEIGHTED = "responseTimeWeighted";
|
||||||
|
private final static String STRATEGY_BEST_AVAILABLE = "bestAvailable";
|
||||||
|
private final static String STRATEGY_ZONE_AVOIDANCE = "zoneAvoidance";
|
||||||
|
private final static String STRATEGY_AVAILABILITY_FILTERING = "availabilityFilteringRule";
|
||||||
|
|
||||||
|
private final PolarisLoadBalancerProperties loadBalancerProperties;
|
||||||
|
private final RouterAPI routerAPI;
|
||||||
|
|
||||||
|
private final AbstractLoadBalancerRule delegateRule;
|
||||||
|
|
||||||
|
public PolarisLoadBalancerCompositeRule(RouterAPI routerAPI, PolarisLoadBalancerProperties polarisLoadBalancerProperties,
|
||||||
|
IClientConfig iClientConfig) {
|
||||||
|
this.routerAPI = routerAPI;
|
||||||
|
this.loadBalancerProperties = polarisLoadBalancerProperties;
|
||||||
|
|
||||||
|
delegateRule = getRule();
|
||||||
|
delegateRule.initWithNiwsConfig(iClientConfig);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void initWithNiwsConfig(IClientConfig clientConfig) {
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Server choose(Object key) {
|
||||||
|
// 1. get all servers
|
||||||
|
List<Server> allServers = getLoadBalancer().getReachableServers();
|
||||||
|
if (CollectionUtils.isEmpty(allServers)) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
// 2. filter by router
|
||||||
|
List<Server> serversAfterRouter = doRouter(allServers, key);
|
||||||
|
|
||||||
|
// 3. filter by load balance.
|
||||||
|
// A LoadBalancer needs to be regenerated for each request,
|
||||||
|
// because the list of servers may be different after filtered by router
|
||||||
|
ILoadBalancer loadBalancer = new SimpleLoadBalancer();
|
||||||
|
loadBalancer.addServers(serversAfterRouter);
|
||||||
|
delegateRule.setLoadBalancer(loadBalancer);
|
||||||
|
|
||||||
|
return delegateRule.choose(key);
|
||||||
|
}
|
||||||
|
|
||||||
|
private List<Server> doRouter(List<Server> allServers, Object key) {
|
||||||
|
ServiceInstances serviceInstances = LoadBalancerUtils.transferServersToServiceInstances(allServers);
|
||||||
|
|
||||||
|
// filter instance by routers
|
||||||
|
ProcessRoutersRequest processRoutersRequest = buildProcessRoutersRequest(serviceInstances, key);
|
||||||
|
|
||||||
|
ProcessRoutersResponse processRoutersResponse = routerAPI.processRouters(processRoutersRequest);
|
||||||
|
|
||||||
|
List<Server> filteredInstances = new ArrayList<>();
|
||||||
|
ServiceInstances filteredServiceInstances = processRoutersResponse.getServiceInstances();
|
||||||
|
for (Instance instance : filteredServiceInstances.getInstances()) {
|
||||||
|
filteredInstances.add(new PolarisServer(serviceInstances, instance));
|
||||||
|
}
|
||||||
|
return filteredInstances;
|
||||||
|
}
|
||||||
|
|
||||||
|
private ProcessRoutersRequest buildProcessRoutersRequest(ServiceInstances serviceInstances, Object key) {
|
||||||
|
ProcessRoutersRequest processRoutersRequest = new ProcessRoutersRequest();
|
||||||
|
processRoutersRequest.setDstInstances(serviceInstances);
|
||||||
|
|
||||||
|
Map<String, String> routerMetadata;
|
||||||
|
if (key instanceof PolarisRouterContext) {
|
||||||
|
routerMetadata = ((PolarisRouterContext) key).getLabels();
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
routerMetadata = Collections.emptyMap();
|
||||||
|
}
|
||||||
|
|
||||||
|
String srcNamespace = MetadataContext.LOCAL_NAMESPACE;
|
||||||
|
String srcService = MetadataContext.LOCAL_SERVICE;
|
||||||
|
|
||||||
|
if (StringUtils.isNotBlank(srcNamespace) && StringUtils.isNotBlank(srcService)) {
|
||||||
|
ServiceInfo serviceInfo = new ServiceInfo();
|
||||||
|
serviceInfo.setNamespace(srcNamespace);
|
||||||
|
serviceInfo.setService(srcService);
|
||||||
|
serviceInfo.setMetadata(routerMetadata);
|
||||||
|
processRoutersRequest.setSourceService(serviceInfo);
|
||||||
|
}
|
||||||
|
|
||||||
|
return processRoutersRequest;
|
||||||
|
}
|
||||||
|
|
||||||
|
public AbstractLoadBalancerRule getRule() {
|
||||||
|
String loadBalanceStrategy = loadBalancerProperties.getStrategy();
|
||||||
|
if (org.springframework.util.StringUtils.isEmpty(loadBalanceStrategy)) {
|
||||||
|
return new RoundRobinRule();
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (loadBalanceStrategy) {
|
||||||
|
case STRATEGY_RANDOM:
|
||||||
|
return new RandomRule();
|
||||||
|
case STRATEGY_WEIGHT:
|
||||||
|
return new PolarisWeightedRule(routerAPI);
|
||||||
|
case STRATEGY_RETRY:
|
||||||
|
return new RetryRule();
|
||||||
|
case STRATEGY_RESPONSE_TIME_WEIGHTED:
|
||||||
|
return new WeightedResponseTimeRule();
|
||||||
|
case STRATEGY_BEST_AVAILABLE:
|
||||||
|
return new BestAvailableRule();
|
||||||
|
case STRATEGY_ROUND_ROBIN:
|
||||||
|
return new RoundRobinRule();
|
||||||
|
case STRATEGY_AVAILABILITY_FILTERING:
|
||||||
|
return new AvailabilityFilteringRule();
|
||||||
|
case STRATEGY_ZONE_AVOIDANCE:
|
||||||
|
default:
|
||||||
|
return new ZoneAvoidanceRule();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,53 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router;
|
||||||
|
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* the context for router.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-17
|
||||||
|
*/
|
||||||
|
public class PolarisRouterContext {
|
||||||
|
|
||||||
|
private Map<String, String> labels;
|
||||||
|
|
||||||
|
public Map<String, String> getLabels() {
|
||||||
|
if (CollectionUtils.isEmpty(labels)) {
|
||||||
|
return Collections.emptyMap();
|
||||||
|
}
|
||||||
|
return Collections.unmodifiableMap(labels);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setLabels(Map<String, String> labels) {
|
||||||
|
this.labels = labels;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void putLabel(String key, String value) {
|
||||||
|
if (labels == null) {
|
||||||
|
labels = new HashMap<>();
|
||||||
|
}
|
||||||
|
labels.put(key, value);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,75 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router;
|
||||||
|
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashSet;
|
||||||
|
import java.util.List;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import com.tencent.cloud.common.util.ExpressionLabelUtils;
|
||||||
|
import com.tencent.cloud.polaris.context.ServiceRuleManager;
|
||||||
|
import com.tencent.polaris.client.pb.ModelProto;
|
||||||
|
import com.tencent.polaris.client.pb.RoutingProto;
|
||||||
|
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Resolve label expressions from routing rules.
|
||||||
|
* @author lepdou 2022-05-19
|
||||||
|
*/
|
||||||
|
public class RouterRuleLabelResolver {
|
||||||
|
|
||||||
|
private final ServiceRuleManager serviceRuleManager;
|
||||||
|
|
||||||
|
public RouterRuleLabelResolver(ServiceRuleManager serviceRuleManager) {
|
||||||
|
this.serviceRuleManager = serviceRuleManager;
|
||||||
|
}
|
||||||
|
|
||||||
|
public Set<String> getExpressionLabelKeys(String namespace, String sourceService, String dstService) {
|
||||||
|
List<RoutingProto.Route> rules = serviceRuleManager.getServiceRouterRule(namespace, sourceService, dstService);
|
||||||
|
|
||||||
|
if (CollectionUtils.isEmpty(rules)) {
|
||||||
|
return Collections.emptySet();
|
||||||
|
}
|
||||||
|
|
||||||
|
Set<String> expressionLabels = new HashSet<>();
|
||||||
|
|
||||||
|
for (RoutingProto.Route rule : rules) {
|
||||||
|
List<RoutingProto.Source> sources = rule.getSourcesList();
|
||||||
|
if (CollectionUtils.isEmpty(sources)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
for (RoutingProto.Source source : sources) {
|
||||||
|
Map<String, ModelProto.MatchString> labels = source.getMetadataMap();
|
||||||
|
if (CollectionUtils.isEmpty(labels)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
for (String labelKey : labels.keySet()) {
|
||||||
|
if (ExpressionLabelUtils.isExpressionLabel(labelKey)) {
|
||||||
|
expressionLabels.add(labelKey);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return expressionLabels;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,63 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router;
|
||||||
|
|
||||||
|
import java.util.List;
|
||||||
|
|
||||||
|
import com.netflix.loadbalancer.ILoadBalancer;
|
||||||
|
import com.netflix.loadbalancer.Server;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Simple load balancer only for getting and setting servers.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-17
|
||||||
|
*/
|
||||||
|
public class SimpleLoadBalancer implements ILoadBalancer {
|
||||||
|
private List<Server> servers;
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void addServers(List<Server> newServers) {
|
||||||
|
this.servers = newServers;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Server chooseServer(Object key) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void markServerDown(Server server) {
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public List<Server> getServerList(boolean availableOnly) {
|
||||||
|
return servers;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public List<Server> getReachableServers() {
|
||||||
|
return servers;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public List<Server> getAllServers() {
|
||||||
|
return servers;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,44 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.config;
|
||||||
|
|
||||||
|
import com.netflix.client.config.IClientConfig;
|
||||||
|
import com.netflix.loadbalancer.ILoadBalancer;
|
||||||
|
import com.tencent.cloud.polaris.router.feign.PolarisFeignLoadBalancer;
|
||||||
|
|
||||||
|
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
|
||||||
|
import org.springframework.cloud.netflix.ribbon.ServerIntrospector;
|
||||||
|
import org.springframework.context.annotation.Bean;
|
||||||
|
import org.springframework.context.annotation.Configuration;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* configuration for feign component.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-16
|
||||||
|
*/
|
||||||
|
@Configuration
|
||||||
|
public class FeignConfiguration {
|
||||||
|
|
||||||
|
@Bean
|
||||||
|
@ConditionalOnMissingBean
|
||||||
|
public PolarisFeignLoadBalancer polarisFeignLoadBalancer(ILoadBalancer lb, IClientConfig clientConfig,
|
||||||
|
ServerIntrospector serverIntrospector) {
|
||||||
|
return new PolarisFeignLoadBalancer(lb, clientConfig, serverIntrospector);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,43 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.config;
|
||||||
|
|
||||||
|
import com.netflix.client.config.IClientConfig;
|
||||||
|
import com.netflix.loadbalancer.IRule;
|
||||||
|
import com.tencent.cloud.polaris.loadbalancer.config.PolarisLoadBalancerProperties;
|
||||||
|
import com.tencent.cloud.polaris.router.PolarisLoadBalancerCompositeRule;
|
||||||
|
import com.tencent.polaris.router.api.core.RouterAPI;
|
||||||
|
|
||||||
|
import org.springframework.context.annotation.Bean;
|
||||||
|
import org.springframework.context.annotation.Configuration;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Auto configuration for ribbon components.
|
||||||
|
* @author lepdou 2022-05-17
|
||||||
|
*/
|
||||||
|
@Configuration
|
||||||
|
public class RibbonConfiguration {
|
||||||
|
|
||||||
|
@Bean
|
||||||
|
public IRule polarisLoadBalancerCompositeRule(RouterAPI routerAPI,
|
||||||
|
PolarisLoadBalancerProperties polarisLoadBalancerProperties,
|
||||||
|
IClientConfig iClientConfig) {
|
||||||
|
return new PolarisLoadBalancerCompositeRule(routerAPI, polarisLoadBalancerProperties, iClientConfig);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,69 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.config;
|
||||||
|
|
||||||
|
import com.tencent.cloud.common.metadata.config.MetadataLocalProperties;
|
||||||
|
import com.tencent.cloud.polaris.context.ServiceRuleManager;
|
||||||
|
import com.tencent.cloud.polaris.router.RouterRuleLabelResolver;
|
||||||
|
import com.tencent.cloud.polaris.router.feign.PolarisCachingSpringLoadBalanceFactory;
|
||||||
|
import com.tencent.cloud.polaris.router.feign.RouterLabelInterceptor;
|
||||||
|
import com.tencent.cloud.polaris.router.resttemplate.PolarisLoadBalancerBeanPostProcessor;
|
||||||
|
import com.tencent.cloud.polaris.router.spi.RouterLabelResolver;
|
||||||
|
|
||||||
|
import org.springframework.cloud.netflix.ribbon.RibbonClients;
|
||||||
|
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
|
||||||
|
import org.springframework.context.annotation.Bean;
|
||||||
|
import org.springframework.context.annotation.Configuration;
|
||||||
|
import org.springframework.core.annotation.Order;
|
||||||
|
import org.springframework.lang.Nullable;
|
||||||
|
|
||||||
|
import static org.springframework.core.Ordered.HIGHEST_PRECEDENCE;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* router module auto configuration.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-11
|
||||||
|
*/
|
||||||
|
@Configuration
|
||||||
|
@RibbonClients(defaultConfiguration = {FeignConfiguration.class, RibbonConfiguration.class})
|
||||||
|
public class RouterAutoConfiguration {
|
||||||
|
|
||||||
|
@Bean
|
||||||
|
public RouterLabelInterceptor routerLabelInterceptor(@Nullable RouterLabelResolver resolver,
|
||||||
|
MetadataLocalProperties metadataLocalProperties,
|
||||||
|
RouterRuleLabelResolver routerRuleLabelResolver) {
|
||||||
|
return new RouterLabelInterceptor(resolver, metadataLocalProperties, routerRuleLabelResolver);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Bean
|
||||||
|
public PolarisCachingSpringLoadBalanceFactory polarisCachingSpringLoadBalanceFactory(SpringClientFactory factory) {
|
||||||
|
return new PolarisCachingSpringLoadBalanceFactory(factory);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Bean
|
||||||
|
@Order(HIGHEST_PRECEDENCE)
|
||||||
|
public PolarisLoadBalancerBeanPostProcessor polarisLoadBalancerBeanPostProcessor() {
|
||||||
|
return new PolarisLoadBalancerBeanPostProcessor();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Bean
|
||||||
|
public RouterRuleLabelResolver routerRuleLabelResolver(ServiceRuleManager serviceRuleManager) {
|
||||||
|
return new RouterRuleLabelResolver(serviceRuleManager);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,81 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.feign;
|
||||||
|
|
||||||
|
import java.util.Collection;
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import com.tencent.cloud.common.util.ExpressionLabelUtils;
|
||||||
|
import feign.RequestTemplate;
|
||||||
|
import org.apache.commons.lang.StringUtils;
|
||||||
|
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Resolve rule expression label from feign request.
|
||||||
|
* @author lepdou 2022-05-20
|
||||||
|
*/
|
||||||
|
public class FeignExpressionLabelUtils {
|
||||||
|
|
||||||
|
public static Map<String, String> resolve(RequestTemplate request, Set<String> labelKeys) {
|
||||||
|
if (CollectionUtils.isEmpty(labelKeys)) {
|
||||||
|
return Collections.emptyMap();
|
||||||
|
}
|
||||||
|
|
||||||
|
Map<String, String> labels = new HashMap<>();
|
||||||
|
|
||||||
|
for (String labelKey : labelKeys) {
|
||||||
|
if (StringUtils.startsWithIgnoreCase(labelKey, ExpressionLabelUtils.LABEL_HEADER_PREFIX)) {
|
||||||
|
String headerKey = ExpressionLabelUtils.parseHeaderKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(headerKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getHeaderValue(request, headerKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.startsWithIgnoreCase(labelKey, ExpressionLabelUtils.LABEL_QUERY_PREFIX)) {
|
||||||
|
String queryKey = ExpressionLabelUtils.parseQueryKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(queryKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getQueryValue(request, queryKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.equalsIgnoreCase(ExpressionLabelUtils.LABEL_METHOD, labelKey)) {
|
||||||
|
labels.put(labelKey, request.method());
|
||||||
|
}
|
||||||
|
else if (StringUtils.equalsIgnoreCase(ExpressionLabelUtils.LABEL_URI, labelKey)) {
|
||||||
|
labels.put(labelKey, request.request().url());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return labels;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getHeaderValue(RequestTemplate request, String key) {
|
||||||
|
Map<String, Collection<String>> headers = request.headers();
|
||||||
|
return ExpressionLabelUtils.getFirstValue(headers, key);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getQueryValue(RequestTemplate request, String key) {
|
||||||
|
return ExpressionLabelUtils.getFirstValue(request.queries(), key);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,72 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.feign;
|
||||||
|
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import com.netflix.client.config.IClientConfig;
|
||||||
|
import com.netflix.loadbalancer.ILoadBalancer;
|
||||||
|
|
||||||
|
import org.springframework.cloud.client.loadbalancer.LoadBalancedRetryFactory;
|
||||||
|
import org.springframework.cloud.netflix.ribbon.ServerIntrospector;
|
||||||
|
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
|
||||||
|
import org.springframework.cloud.openfeign.ribbon.CachingSpringLoadBalancerFactory;
|
||||||
|
import org.springframework.cloud.openfeign.ribbon.FeignLoadBalancer;
|
||||||
|
import org.springframework.util.ConcurrentReferenceHashMap;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Extends CachingSpringLoadBalancerFactory to be able to create PolarisFeignLoadBalance.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-16
|
||||||
|
*/
|
||||||
|
public class PolarisCachingSpringLoadBalanceFactory extends CachingSpringLoadBalancerFactory {
|
||||||
|
|
||||||
|
private final Map<String, FeignLoadBalancer> cache = new ConcurrentReferenceHashMap<>();
|
||||||
|
|
||||||
|
public PolarisCachingSpringLoadBalanceFactory(SpringClientFactory factory) {
|
||||||
|
super(factory);
|
||||||
|
}
|
||||||
|
|
||||||
|
public PolarisCachingSpringLoadBalanceFactory(SpringClientFactory factory,
|
||||||
|
LoadBalancedRetryFactory loadBalancedRetryPolicyFactory) {
|
||||||
|
super(factory, loadBalancedRetryPolicyFactory);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public FeignLoadBalancer create(String clientName) {
|
||||||
|
FeignLoadBalancer client = this.cache.get(clientName);
|
||||||
|
if (client != null) {
|
||||||
|
return client;
|
||||||
|
}
|
||||||
|
|
||||||
|
IClientConfig config = this.factory.getClientConfig(clientName);
|
||||||
|
ILoadBalancer lb = this.factory.getLoadBalancer(clientName);
|
||||||
|
ServerIntrospector serverIntrospector = this.factory.getInstance(clientName, ServerIntrospector.class);
|
||||||
|
|
||||||
|
FeignLoadBalancer loadBalancer = new PolarisFeignLoadBalancer(lb, config, serverIntrospector);
|
||||||
|
|
||||||
|
//There is a concurrency problem here.
|
||||||
|
//When the concurrency is high, it may cause a service to create multiple FeignLoadBalancers.
|
||||||
|
//But there is no concurrency control in CachingSpringLoadBalancerFactory,
|
||||||
|
//so no locks will be added here for the time being
|
||||||
|
cache.putIfAbsent(clientName, loadBalancer);
|
||||||
|
|
||||||
|
return loadBalancer;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,76 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.feign;
|
||||||
|
|
||||||
|
import java.util.Collection;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import com.netflix.client.config.IClientConfig;
|
||||||
|
import com.netflix.loadbalancer.ILoadBalancer;
|
||||||
|
import com.netflix.loadbalancer.reactive.LoadBalancerCommand;
|
||||||
|
import com.tencent.cloud.common.util.ExpressionLabelUtils;
|
||||||
|
import com.tencent.cloud.common.util.JacksonUtils;
|
||||||
|
import com.tencent.cloud.polaris.router.PolarisRouterContext;
|
||||||
|
import com.tencent.cloud.polaris.router.RouterConstants;
|
||||||
|
|
||||||
|
import org.springframework.cloud.netflix.ribbon.ServerIntrospector;
|
||||||
|
import org.springframework.cloud.openfeign.ribbon.FeignLoadBalancer;
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* In order to pass router context for {@link com.tencent.cloud.polaris.router.PolarisLoadBalancerCompositeRule}.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-16
|
||||||
|
*/
|
||||||
|
public class PolarisFeignLoadBalancer extends FeignLoadBalancer {
|
||||||
|
|
||||||
|
public PolarisFeignLoadBalancer(ILoadBalancer lb, IClientConfig clientConfig, ServerIntrospector serverIntrospector) {
|
||||||
|
super(lb, clientConfig, serverIntrospector);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
protected void customizeLoadBalancerCommandBuilder(RibbonRequest request, IClientConfig config,
|
||||||
|
LoadBalancerCommand.Builder<RibbonResponse> builder) {
|
||||||
|
Map<String, Collection<String>> headers = request.getRequest().headers();
|
||||||
|
Collection<String> labelHeaderValues = headers.get(RouterConstants.ROUTER_LABEL_HEADER);
|
||||||
|
|
||||||
|
if (CollectionUtils.isEmpty(labelHeaderValues)) {
|
||||||
|
builder.withServerLocator(null);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
PolarisRouterContext routerContext = new PolarisRouterContext();
|
||||||
|
|
||||||
|
labelHeaderValues.forEach(labelHeaderValue -> {
|
||||||
|
Map<String, String> labels = JacksonUtils.deserialize2Map(labelHeaderValue);
|
||||||
|
if (!CollectionUtils.isEmpty(labels)) {
|
||||||
|
Map<String, String> unescapeLabels = new HashMap<>(labels.size());
|
||||||
|
for (Map.Entry<String, String> entry : labels.entrySet()) {
|
||||||
|
String escapedKey = ExpressionLabelUtils.unescape(entry.getKey());
|
||||||
|
String escapedValue = ExpressionLabelUtils.unescape(entry.getValue());
|
||||||
|
unescapeLabels.put(escapedKey, escapedValue);
|
||||||
|
}
|
||||||
|
routerContext.setLabels(unescapeLabels);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
builder.withServerLocator(routerContext);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,123 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.feign;
|
||||||
|
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import com.tencent.cloud.common.metadata.MetadataContext;
|
||||||
|
import com.tencent.cloud.common.metadata.MetadataContextHolder;
|
||||||
|
import com.tencent.cloud.common.metadata.config.MetadataLocalProperties;
|
||||||
|
import com.tencent.cloud.common.util.ExpressionLabelUtils;
|
||||||
|
import com.tencent.cloud.common.util.JacksonUtils;
|
||||||
|
import com.tencent.cloud.polaris.router.RouterConstants;
|
||||||
|
import com.tencent.cloud.polaris.router.RouterRuleLabelResolver;
|
||||||
|
import com.tencent.cloud.polaris.router.spi.RouterLabelResolver;
|
||||||
|
import feign.RequestInterceptor;
|
||||||
|
import feign.RequestTemplate;
|
||||||
|
import org.slf4j.Logger;
|
||||||
|
import org.slf4j.LoggerFactory;
|
||||||
|
|
||||||
|
import org.springframework.core.Ordered;
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Resolver labels from request.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-12
|
||||||
|
*/
|
||||||
|
public class RouterLabelInterceptor implements RequestInterceptor, Ordered {
|
||||||
|
private static final Logger LOGGER = LoggerFactory.getLogger(RouterLabelInterceptor.class);
|
||||||
|
|
||||||
|
private final RouterLabelResolver resolver;
|
||||||
|
private final MetadataLocalProperties metadataLocalProperties;
|
||||||
|
private final RouterRuleLabelResolver routerRuleLabelResolver;
|
||||||
|
|
||||||
|
public RouterLabelInterceptor(RouterLabelResolver resolver,
|
||||||
|
MetadataLocalProperties metadataLocalProperties,
|
||||||
|
RouterRuleLabelResolver routerRuleLabelResolver) {
|
||||||
|
this.resolver = resolver;
|
||||||
|
this.metadataLocalProperties = metadataLocalProperties;
|
||||||
|
this.routerRuleLabelResolver = routerRuleLabelResolver;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public int getOrder() {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void apply(RequestTemplate requestTemplate) {
|
||||||
|
Map<String, String> labels = new HashMap<>();
|
||||||
|
|
||||||
|
// labels from downstream
|
||||||
|
Map<String, String> transitiveLabels = MetadataContextHolder.get()
|
||||||
|
.getFragmentContext(MetadataContext.FRAGMENT_TRANSITIVE);
|
||||||
|
labels.putAll(transitiveLabels);
|
||||||
|
|
||||||
|
// labels from request
|
||||||
|
if (resolver != null) {
|
||||||
|
try {
|
||||||
|
Map<String, String> customResolvedLabels = resolver.resolve(requestTemplate);
|
||||||
|
if (!CollectionUtils.isEmpty(customResolvedLabels)) {
|
||||||
|
labels.putAll(customResolvedLabels);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
catch (Throwable t) {
|
||||||
|
LOGGER.error("[SCT][Router] revoke RouterLabelResolver occur some exception. ", t);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// labels from rule expression
|
||||||
|
String peerServiceName = requestTemplate.feignTarget().name();
|
||||||
|
Map<String, String> ruleExpressionLabels = getRuleExpressionLabels(requestTemplate, peerServiceName);
|
||||||
|
labels.putAll(ruleExpressionLabels);
|
||||||
|
|
||||||
|
|
||||||
|
//local service labels
|
||||||
|
labels.putAll(metadataLocalProperties.getContent());
|
||||||
|
|
||||||
|
// Because when the label is placed in RequestTemplate.header,
|
||||||
|
// RequestTemplate will parse the header according to the regular, which conflicts with the expression.
|
||||||
|
// Avoid conflicts by escaping.
|
||||||
|
Map<String, String> escapeLabels = new HashMap<>(labels.size());
|
||||||
|
for (Map.Entry<String, String> entry : labels.entrySet()) {
|
||||||
|
String escapedKey = ExpressionLabelUtils.escape(entry.getKey());
|
||||||
|
String escapedValue = ExpressionLabelUtils.escape(entry.getValue());
|
||||||
|
escapeLabels.put(escapedKey, escapedValue);
|
||||||
|
}
|
||||||
|
|
||||||
|
// pass label by header
|
||||||
|
requestTemplate.header(RouterConstants.ROUTER_LABEL_HEADER, JacksonUtils.serialize2Json(escapeLabels));
|
||||||
|
}
|
||||||
|
|
||||||
|
private Map<String, String> getRuleExpressionLabels(RequestTemplate requestTemplate, String peerService) {
|
||||||
|
Set<String> labelKeys = routerRuleLabelResolver.getExpressionLabelKeys(MetadataContext.LOCAL_NAMESPACE,
|
||||||
|
MetadataContext.LOCAL_SERVICE, peerService);
|
||||||
|
|
||||||
|
if (CollectionUtils.isEmpty(labelKeys)) {
|
||||||
|
return Collections.emptyMap();
|
||||||
|
}
|
||||||
|
|
||||||
|
return FeignExpressionLabelUtils.resolve(requestTemplate, labelKeys);
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
@ -0,0 +1,62 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.resttemplate;
|
||||||
|
|
||||||
|
import com.tencent.cloud.common.metadata.config.MetadataLocalProperties;
|
||||||
|
import com.tencent.cloud.polaris.router.RouterRuleLabelResolver;
|
||||||
|
import com.tencent.cloud.polaris.router.spi.RouterLabelResolver;
|
||||||
|
|
||||||
|
import org.springframework.beans.BeansException;
|
||||||
|
import org.springframework.beans.factory.BeanFactory;
|
||||||
|
import org.springframework.beans.factory.BeanFactoryAware;
|
||||||
|
import org.springframework.beans.factory.config.BeanPostProcessor;
|
||||||
|
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
|
||||||
|
import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor;
|
||||||
|
import org.springframework.cloud.client.loadbalancer.LoadBalancerRequestFactory;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Replace LoadBalancerInterceptor with PolarisLoadBalancerInterceptor.
|
||||||
|
* PolarisLoadBalancerInterceptor can pass routing context information.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-18
|
||||||
|
*/
|
||||||
|
public class PolarisLoadBalancerBeanPostProcessor implements BeanPostProcessor, BeanFactoryAware {
|
||||||
|
|
||||||
|
private BeanFactory factory;
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
|
||||||
|
this.factory = beanFactory;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
|
||||||
|
if (bean instanceof LoadBalancerInterceptor) {
|
||||||
|
LoadBalancerRequestFactory requestFactory = this.factory.getBean(LoadBalancerRequestFactory.class);
|
||||||
|
LoadBalancerClient loadBalancerClient = this.factory.getBean(LoadBalancerClient.class);
|
||||||
|
RouterLabelResolver routerLabelResolver = this.factory.getBean(RouterLabelResolver.class);
|
||||||
|
MetadataLocalProperties metadataLocalProperties = this.factory.getBean(MetadataLocalProperties.class);
|
||||||
|
RouterRuleLabelResolver routerRuleLabelResolver = this.factory.getBean(RouterRuleLabelResolver.class);
|
||||||
|
|
||||||
|
return new PolarisLoadBalancerInterceptor(loadBalancerClient, requestFactory,
|
||||||
|
routerLabelResolver, metadataLocalProperties, routerRuleLabelResolver);
|
||||||
|
}
|
||||||
|
return bean;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,143 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.resttemplate;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.net.URI;
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import com.tencent.cloud.common.metadata.MetadataContext;
|
||||||
|
import com.tencent.cloud.common.metadata.MetadataContextHolder;
|
||||||
|
import com.tencent.cloud.common.metadata.config.MetadataLocalProperties;
|
||||||
|
import com.tencent.cloud.common.util.ExpressionLabelUtils;
|
||||||
|
import com.tencent.cloud.polaris.router.PolarisRouterContext;
|
||||||
|
import com.tencent.cloud.polaris.router.RouterRuleLabelResolver;
|
||||||
|
import com.tencent.cloud.polaris.router.spi.RouterLabelResolver;
|
||||||
|
import org.slf4j.Logger;
|
||||||
|
import org.slf4j.LoggerFactory;
|
||||||
|
|
||||||
|
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
|
||||||
|
import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor;
|
||||||
|
import org.springframework.cloud.client.loadbalancer.LoadBalancerRequestFactory;
|
||||||
|
import org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient;
|
||||||
|
import org.springframework.http.HttpRequest;
|
||||||
|
import org.springframework.http.client.ClientHttpRequestExecution;
|
||||||
|
import org.springframework.http.client.ClientHttpResponse;
|
||||||
|
import org.springframework.util.Assert;
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* PolarisLoadBalancerInterceptor extends LoadBalancerInterceptor capabilities.
|
||||||
|
* Parses the label from the request and puts it into the RouterContext for routing.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-18
|
||||||
|
*/
|
||||||
|
public class PolarisLoadBalancerInterceptor extends LoadBalancerInterceptor {
|
||||||
|
private static final Logger LOGGER = LoggerFactory.getLogger(PolarisLoadBalancerInterceptor.class);
|
||||||
|
|
||||||
|
private final LoadBalancerClient loadBalancer;
|
||||||
|
private final LoadBalancerRequestFactory requestFactory;
|
||||||
|
private final RouterLabelResolver resolver;
|
||||||
|
private final MetadataLocalProperties metadataLocalProperties;
|
||||||
|
private final RouterRuleLabelResolver routerRuleLabelResolver;
|
||||||
|
|
||||||
|
private final boolean isRibbonLoadBalanceClient;
|
||||||
|
|
||||||
|
public PolarisLoadBalancerInterceptor(LoadBalancerClient loadBalancer,
|
||||||
|
LoadBalancerRequestFactory requestFactory,
|
||||||
|
RouterLabelResolver resolver,
|
||||||
|
MetadataLocalProperties metadataLocalProperties,
|
||||||
|
RouterRuleLabelResolver routerRuleLabelResolver) {
|
||||||
|
super(loadBalancer, requestFactory);
|
||||||
|
this.loadBalancer = loadBalancer;
|
||||||
|
this.requestFactory = requestFactory;
|
||||||
|
this.resolver = resolver;
|
||||||
|
this.metadataLocalProperties = metadataLocalProperties;
|
||||||
|
this.routerRuleLabelResolver = routerRuleLabelResolver;
|
||||||
|
|
||||||
|
this.isRibbonLoadBalanceClient = loadBalancer instanceof RibbonLoadBalancerClient;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
|
||||||
|
final URI originalUri = request.getURI();
|
||||||
|
String peerServiceName = originalUri.getHost();
|
||||||
|
Assert.state(peerServiceName != null,
|
||||||
|
"Request URI does not contain a valid hostname: " + originalUri);
|
||||||
|
|
||||||
|
if (isRibbonLoadBalanceClient) {
|
||||||
|
PolarisRouterContext routerContext = genRouterContext(request, body, peerServiceName);
|
||||||
|
|
||||||
|
return ((RibbonLoadBalancerClient) loadBalancer).execute(peerServiceName,
|
||||||
|
this.requestFactory.createRequest(request, body, execution), routerContext);
|
||||||
|
}
|
||||||
|
|
||||||
|
return this.loadBalancer.execute(peerServiceName,
|
||||||
|
this.requestFactory.createRequest(request, body, execution));
|
||||||
|
}
|
||||||
|
|
||||||
|
private PolarisRouterContext genRouterContext(HttpRequest request, byte[] body, String peerServiceName) {
|
||||||
|
Map<String, String> labels = new HashMap<>();
|
||||||
|
|
||||||
|
// labels from downstream
|
||||||
|
Map<String, String> transitiveLabels = MetadataContextHolder.get()
|
||||||
|
.getFragmentContext(MetadataContext.FRAGMENT_TRANSITIVE);
|
||||||
|
labels.putAll(transitiveLabels);
|
||||||
|
|
||||||
|
// labels from request
|
||||||
|
if (resolver != null) {
|
||||||
|
try {
|
||||||
|
Map<String, String> customResolvedLabels = resolver.resolve(request, body);
|
||||||
|
if (!CollectionUtils.isEmpty(customResolvedLabels)) {
|
||||||
|
labels.putAll(customResolvedLabels);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
catch (Throwable t) {
|
||||||
|
LOGGER.error("[SCT][Router] revoke RouterLabelResolver occur some exception. ", t);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Map<String, String> ruleExpressionLabels = getExpressionLabels(request, peerServiceName);
|
||||||
|
if (!CollectionUtils.isEmpty(ruleExpressionLabels)) {
|
||||||
|
labels.putAll(ruleExpressionLabels);
|
||||||
|
}
|
||||||
|
|
||||||
|
//local service labels
|
||||||
|
labels.putAll(metadataLocalProperties.getContent());
|
||||||
|
|
||||||
|
PolarisRouterContext routerContext = new PolarisRouterContext();
|
||||||
|
routerContext.setLabels(labels);
|
||||||
|
|
||||||
|
return routerContext;
|
||||||
|
}
|
||||||
|
|
||||||
|
private Map<String, String> getExpressionLabels(HttpRequest request, String peerServiceName) {
|
||||||
|
Set<String> labelKeys = routerRuleLabelResolver.getExpressionLabelKeys(MetadataContext.LOCAL_NAMESPACE,
|
||||||
|
MetadataContext.LOCAL_SERVICE, peerServiceName);
|
||||||
|
|
||||||
|
if (CollectionUtils.isEmpty(labelKeys)) {
|
||||||
|
return Collections.emptyMap();
|
||||||
|
}
|
||||||
|
|
||||||
|
return ExpressionLabelUtils.resolve(request, labelKeys);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,48 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.spi;
|
||||||
|
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import feign.RequestTemplate;
|
||||||
|
|
||||||
|
import org.springframework.http.HttpRequest;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* The spi for resolving labels from request.
|
||||||
|
*
|
||||||
|
* @author lepdou 2022-05-11
|
||||||
|
*/
|
||||||
|
public interface RouterLabelResolver {
|
||||||
|
|
||||||
|
/**
|
||||||
|
* resolve labels from feign request.
|
||||||
|
* @param requestTemplate the feign request.
|
||||||
|
* @return resolved labels
|
||||||
|
*/
|
||||||
|
Map<String, String> resolve(RequestTemplate requestTemplate);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* resolve labels from rest template request.
|
||||||
|
* @param request the rest template request.
|
||||||
|
* @param body the rest template request body.
|
||||||
|
* @return resolved labels
|
||||||
|
*/
|
||||||
|
Map<String, String> resolve(HttpRequest request, byte[] body);
|
||||||
|
}
|
||||||
@ -0,0 +1,2 @@
|
|||||||
|
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
|
||||||
|
com.tencent.cloud.polaris.router.config.RouterAutoConfiguration
|
||||||
@ -1,70 +0,0 @@
|
|||||||
/*
|
|
||||||
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
|
||||||
*
|
|
||||||
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
|
||||||
*
|
|
||||||
* Licensed under the BSD 3-Clause License (the "License");
|
|
||||||
* you may not use this file except in compliance with the License.
|
|
||||||
* You may obtain a copy of the License at
|
|
||||||
*
|
|
||||||
* https://opensource.org/licenses/BSD-3-Clause
|
|
||||||
*
|
|
||||||
* Unless required by applicable law or agreed to in writing, software distributed
|
|
||||||
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
||||||
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
|
||||||
* specific language governing permissions and limitations under the License.
|
|
||||||
*/
|
|
||||||
package com.tencent.cloud.common.metadata.filter.gateway;
|
|
||||||
|
|
||||||
import com.netflix.zuul.ZuulFilter;
|
|
||||||
import com.netflix.zuul.context.RequestContext;
|
|
||||||
import com.tencent.cloud.common.constant.MetadataConstant;
|
|
||||||
import com.tencent.cloud.common.metadata.MetadataContext;
|
|
||||||
import com.tencent.cloud.common.metadata.MetadataContextHolder;
|
|
||||||
|
|
||||||
import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.PRE_DECORATION_FILTER_ORDER;
|
|
||||||
import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.PRE_TYPE;
|
|
||||||
import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.REQUEST_URI_KEY;
|
|
||||||
import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.SERVICE_ID_KEY;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Zuul output first filter used for setting peer info in context.
|
|
||||||
*
|
|
||||||
* @author Haotian Zhang
|
|
||||||
*/
|
|
||||||
public class MetadataFirstZuulFilter extends ZuulFilter {
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public String filterType() {
|
|
||||||
return PRE_TYPE;
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public int filterOrder() {
|
|
||||||
return PRE_DECORATION_FILTER_ORDER + 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public boolean shouldFilter() {
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public Object run() {
|
|
||||||
// get request context
|
|
||||||
RequestContext requestContext = RequestContext.getCurrentContext();
|
|
||||||
|
|
||||||
// TODO The peer namespace is temporarily the same as the local namespace
|
|
||||||
MetadataContextHolder.get().putSystemMetadata(
|
|
||||||
MetadataConstant.SystemMetadataKey.PEER_NAMESPACE,
|
|
||||||
MetadataContext.LOCAL_NAMESPACE);
|
|
||||||
MetadataContextHolder.get().putSystemMetadata(
|
|
||||||
MetadataConstant.SystemMetadataKey.PEER_SERVICE,
|
|
||||||
(String) requestContext.get(SERVICE_ID_KEY));
|
|
||||||
MetadataContextHolder.get().putSystemMetadata(
|
|
||||||
MetadataConstant.SystemMetadataKey.PEER_PATH,
|
|
||||||
(String) requestContext.get(REQUEST_URI_KEY));
|
|
||||||
return null;
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
@ -1,55 +0,0 @@
|
|||||||
/*
|
|
||||||
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
|
||||||
*
|
|
||||||
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
|
||||||
*
|
|
||||||
* Licensed under the BSD 3-Clause License (the "License");
|
|
||||||
* you may not use this file except in compliance with the License.
|
|
||||||
* You may obtain a copy of the License at
|
|
||||||
*
|
|
||||||
* https://opensource.org/licenses/BSD-3-Clause
|
|
||||||
*
|
|
||||||
* Unless required by applicable law or agreed to in writing, software distributed
|
|
||||||
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
||||||
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
|
||||||
* specific language governing permissions and limitations under the License.
|
|
||||||
*/
|
|
||||||
|
|
||||||
package com.tencent.cloud.common.metadata.interceptor.feign;
|
|
||||||
|
|
||||||
import com.tencent.cloud.common.constant.MetadataConstant;
|
|
||||||
import com.tencent.cloud.common.metadata.MetadataContext;
|
|
||||||
import com.tencent.cloud.common.metadata.MetadataContextHolder;
|
|
||||||
import feign.RequestInterceptor;
|
|
||||||
import feign.RequestTemplate;
|
|
||||||
|
|
||||||
import org.springframework.core.Ordered;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Interceptor used for setting peer info in context.
|
|
||||||
*
|
|
||||||
* @author Haotian Zhang
|
|
||||||
*/
|
|
||||||
public class MetadataFirstFeignInterceptor implements RequestInterceptor, Ordered {
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public int getOrder() {
|
|
||||||
return MetadataConstant.OrderConstant.METADATA_FIRST_FEIGN_INTERCEPTOR_ORDER;
|
|
||||||
}
|
|
||||||
|
|
||||||
@Override
|
|
||||||
public void apply(RequestTemplate requestTemplate) {
|
|
||||||
// get metadata of current thread
|
|
||||||
MetadataContext metadataContext = MetadataContextHolder.get();
|
|
||||||
|
|
||||||
// TODO The peer namespace is temporarily the same as the local namespace
|
|
||||||
metadataContext.putSystemMetadata(
|
|
||||||
MetadataConstant.SystemMetadataKey.PEER_NAMESPACE,
|
|
||||||
MetadataContext.LOCAL_NAMESPACE);
|
|
||||||
metadataContext.putSystemMetadata(MetadataConstant.SystemMetadataKey.PEER_SERVICE,
|
|
||||||
requestTemplate.feignTarget().name());
|
|
||||||
metadataContext.putSystemMetadata(MetadataConstant.SystemMetadataKey.PEER_PATH,
|
|
||||||
requestTemplate.path());
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
@ -0,0 +1,323 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.common.util;
|
||||||
|
|
||||||
|
import java.util.Collection;
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import javax.servlet.http.Cookie;
|
||||||
|
import javax.servlet.http.HttpServletRequest;
|
||||||
|
|
||||||
|
import org.apache.commons.lang.StringUtils;
|
||||||
|
|
||||||
|
import org.springframework.http.HttpCookie;
|
||||||
|
import org.springframework.http.HttpHeaders;
|
||||||
|
import org.springframework.http.HttpRequest;
|
||||||
|
import org.springframework.http.server.reactive.ServerHttpRequest;
|
||||||
|
import org.springframework.util.CollectionUtils;
|
||||||
|
import org.springframework.util.MultiValueMap;
|
||||||
|
import org.springframework.web.server.ServerWebExchange;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* the utils for parse label expression.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-13
|
||||||
|
*/
|
||||||
|
public class ExpressionLabelUtils {
|
||||||
|
|
||||||
|
/**
|
||||||
|
* the expression prefix of header label.
|
||||||
|
*/
|
||||||
|
public static final String LABEL_HEADER_PREFIX = "${http.header.";
|
||||||
|
/**
|
||||||
|
* the length of expression header label prefix.
|
||||||
|
*/
|
||||||
|
public static final int LABEL_HEADER_PREFIX_LEN = LABEL_HEADER_PREFIX.length();
|
||||||
|
/**
|
||||||
|
* the expression prefix of query.
|
||||||
|
*/
|
||||||
|
public static final String LABEL_QUERY_PREFIX = "${http.query.";
|
||||||
|
/**
|
||||||
|
* the length of expression query label prefix.
|
||||||
|
*/
|
||||||
|
public static final int LABEL_QUERY_PREFIX_LEN = LABEL_QUERY_PREFIX.length();
|
||||||
|
/**
|
||||||
|
* the expression prefix of cookie.
|
||||||
|
*/
|
||||||
|
public static final String LABEL_COOKIE_PREFIX = "${http.cookie.";
|
||||||
|
/**
|
||||||
|
* the length of expression cookie label prefix.
|
||||||
|
*/
|
||||||
|
public static final int LABEL_COOKIE_PREFIX_LEN = LABEL_COOKIE_PREFIX.length();
|
||||||
|
/**
|
||||||
|
* the expression of method.
|
||||||
|
*/
|
||||||
|
public static final String LABEL_METHOD = "${http.method}";
|
||||||
|
/**
|
||||||
|
* the expression of uri.
|
||||||
|
*/
|
||||||
|
public static final String LABEL_URI = "${http.uri}";
|
||||||
|
/**
|
||||||
|
* the prefix of expression.
|
||||||
|
*/
|
||||||
|
public static final String LABEL_PREFIX = "${";
|
||||||
|
/**
|
||||||
|
* the suffix of expression.
|
||||||
|
*/
|
||||||
|
public static final String LABEL_SUFFIX = "}";
|
||||||
|
/**
|
||||||
|
* the escape prefix of label.
|
||||||
|
*/
|
||||||
|
public static final String LABEL_ESCAPE_PREFIX = "$$$$";
|
||||||
|
|
||||||
|
public static boolean isExpressionLabel(String labelKey) {
|
||||||
|
if (StringUtils.isEmpty(labelKey)) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
if (StringUtils.equalsIgnoreCase(LABEL_METHOD, labelKey) ||
|
||||||
|
StringUtils.startsWithIgnoreCase(LABEL_URI, labelKey)) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
return (StringUtils.startsWithIgnoreCase(labelKey, LABEL_HEADER_PREFIX) ||
|
||||||
|
StringUtils.startsWithIgnoreCase(labelKey, LABEL_QUERY_PREFIX) ||
|
||||||
|
StringUtils.startsWithIgnoreCase(labelKey, LABEL_COOKIE_PREFIX))
|
||||||
|
&& StringUtils.endsWith(labelKey, LABEL_SUFFIX);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String escape(String str) {
|
||||||
|
return StringUtils.replace(str, LABEL_PREFIX, LABEL_ESCAPE_PREFIX);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String unescape(String str) {
|
||||||
|
return StringUtils.replace(str, LABEL_ESCAPE_PREFIX, LABEL_PREFIX);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static Map<String, String> resolve(HttpServletRequest request, Set<String> labelKeys) {
|
||||||
|
if (CollectionUtils.isEmpty(labelKeys)) {
|
||||||
|
return Collections.emptyMap();
|
||||||
|
}
|
||||||
|
|
||||||
|
Map<String, String> labels = new HashMap<>();
|
||||||
|
|
||||||
|
for (String labelKey : labelKeys) {
|
||||||
|
if (StringUtils.startsWithIgnoreCase(labelKey, LABEL_HEADER_PREFIX)) {
|
||||||
|
String headerKey = parseHeaderKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(headerKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, request.getHeader(headerKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.startsWithIgnoreCase(labelKey, LABEL_QUERY_PREFIX)) {
|
||||||
|
String queryKey = parseQueryKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(queryKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getQueryValue(request.getQueryString(), queryKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.startsWithIgnoreCase(labelKey, LABEL_COOKIE_PREFIX)) {
|
||||||
|
String cookieKey = parseCookieKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(cookieKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getCookieValue(request.getCookies(), cookieKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.equalsIgnoreCase(LABEL_METHOD, labelKey)) {
|
||||||
|
labels.put(labelKey, request.getMethod());
|
||||||
|
}
|
||||||
|
else if (StringUtils.equalsIgnoreCase(LABEL_URI, labelKey)) {
|
||||||
|
labels.put(labelKey, request.getRequestURI());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return labels;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static Map<String, String> resolve(ServerWebExchange exchange, Set<String> labelKeys) {
|
||||||
|
if (CollectionUtils.isEmpty(labelKeys)) {
|
||||||
|
return Collections.emptyMap();
|
||||||
|
}
|
||||||
|
|
||||||
|
Map<String, String> labels = new HashMap<>();
|
||||||
|
|
||||||
|
for (String labelKey : labelKeys) {
|
||||||
|
if (StringUtils.startsWithIgnoreCase(labelKey, LABEL_HEADER_PREFIX)) {
|
||||||
|
String headerKey = parseHeaderKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(headerKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getHeaderValue(exchange.getRequest(), headerKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.startsWithIgnoreCase(labelKey, LABEL_QUERY_PREFIX)) {
|
||||||
|
String queryKey = parseQueryKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(queryKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getQueryValue(exchange.getRequest(), queryKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.startsWithIgnoreCase(labelKey, LABEL_COOKIE_PREFIX)) {
|
||||||
|
String cookieKey = parseCookieKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(cookieKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getCookieValue(exchange.getRequest(), cookieKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.equalsIgnoreCase(LABEL_METHOD, labelKey)) {
|
||||||
|
labels.put(labelKey, exchange.getRequest().getMethodValue());
|
||||||
|
}
|
||||||
|
else if (StringUtils.equalsIgnoreCase(LABEL_URI, labelKey)) {
|
||||||
|
labels.put(labelKey, exchange.getRequest().getURI().getPath());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return labels;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static Map<String, String> resolve(HttpRequest request, Set<String> labelKeys) {
|
||||||
|
if (CollectionUtils.isEmpty(labelKeys)) {
|
||||||
|
return Collections.emptyMap();
|
||||||
|
}
|
||||||
|
|
||||||
|
Map<String, String> labels = new HashMap<>();
|
||||||
|
|
||||||
|
for (String labelKey : labelKeys) {
|
||||||
|
if (StringUtils.startsWithIgnoreCase(labelKey, LABEL_HEADER_PREFIX)) {
|
||||||
|
String headerKey = parseHeaderKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(headerKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getHeaderValue(request, headerKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.startsWithIgnoreCase(labelKey, LABEL_QUERY_PREFIX)) {
|
||||||
|
String queryKey = parseQueryKey(labelKey);
|
||||||
|
if (StringUtils.isBlank(queryKey)) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
labels.put(labelKey, getQueryValue(request, queryKey));
|
||||||
|
}
|
||||||
|
else if (StringUtils.equalsIgnoreCase(LABEL_METHOD, labelKey)) {
|
||||||
|
labels.put(labelKey, request.getMethodValue());
|
||||||
|
}
|
||||||
|
else if (StringUtils.equalsIgnoreCase(LABEL_URI, labelKey)) {
|
||||||
|
labels.put(labelKey, request.getURI().getPath());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return labels;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String parseHeaderKey(String expression) {
|
||||||
|
return expression.substring(LABEL_HEADER_PREFIX_LEN, expression.length() - 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String parseQueryKey(String expression) {
|
||||||
|
return expression.substring(LABEL_QUERY_PREFIX_LEN, expression.length() - 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String parseCookieKey(String expression) {
|
||||||
|
return expression.substring(LABEL_COOKIE_PREFIX_LEN, expression.length() - 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getQueryValue(String queryString, String queryKey) {
|
||||||
|
if (StringUtils.isBlank(queryString)) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
String[] queries = StringUtils.split(queryString, "&");
|
||||||
|
if (queries == null || queries.length == 0) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
for (String query : queries) {
|
||||||
|
String[] queryKV = StringUtils.split(query, "=");
|
||||||
|
if (queryKV != null && queryKV.length == 2 && StringUtils.equals(queryKV[0], queryKey)) {
|
||||||
|
return queryKV[1];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getCookieValue(Cookie[] cookies, String key) {
|
||||||
|
if (cookies == null || cookies.length == 0) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
for (Cookie cookie : cookies) {
|
||||||
|
if (StringUtils.equals(cookie.getName(), key)) {
|
||||||
|
return cookie.getValue();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getHeaderValue(ServerHttpRequest request, String key) {
|
||||||
|
String value = request.getHeaders().getFirst(key);
|
||||||
|
if (value == null) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
return value;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getQueryValue(ServerHttpRequest request, String key) {
|
||||||
|
MultiValueMap<String, String> queries = request.getQueryParams();
|
||||||
|
if (CollectionUtils.isEmpty(queries)) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
String value = queries.getFirst(key);
|
||||||
|
if (value == null) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
return value;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getCookieValue(ServerHttpRequest request, String key) {
|
||||||
|
HttpCookie cookie = request.getCookies().getFirst(key);
|
||||||
|
if (cookie == null) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
return cookie.getValue();
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getHeaderValue(HttpRequest request, String key) {
|
||||||
|
HttpHeaders headers = request.getHeaders();
|
||||||
|
return headers.getFirst(key);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getQueryValue(HttpRequest request, String key) {
|
||||||
|
String query = request.getURI().getQuery();
|
||||||
|
return getQueryValue(query, key);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static String getFirstValue(Map<String, Collection<String>> valueMaps, String key) {
|
||||||
|
if (CollectionUtils.isEmpty(valueMaps)) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
|
||||||
|
Collection<String> values = valueMaps.get(key);
|
||||||
|
|
||||||
|
if (CollectionUtils.isEmpty(values)) {
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (String value : values) {
|
||||||
|
return value;
|
||||||
|
}
|
||||||
|
|
||||||
|
return StringUtils.EMPTY;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,53 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.example;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* demo object.
|
||||||
|
* @author lepdou 2022-05-12
|
||||||
|
*/
|
||||||
|
public class User {
|
||||||
|
|
||||||
|
private String name;
|
||||||
|
private int age;
|
||||||
|
|
||||||
|
public String getName() {
|
||||||
|
return name;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setName(String name) {
|
||||||
|
this.name = name;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int getAge() {
|
||||||
|
return age;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setAge(int age) {
|
||||||
|
this.age = age;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String toString() {
|
||||||
|
return "User{" +
|
||||||
|
"name='" + name + '\'' +
|
||||||
|
", age=" + age +
|
||||||
|
'}';
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,60 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.example;
|
||||||
|
|
||||||
|
import java.util.HashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import com.google.gson.Gson;
|
||||||
|
import com.tencent.cloud.polaris.router.spi.RouterLabelResolver;
|
||||||
|
import feign.RequestTemplate;
|
||||||
|
|
||||||
|
import org.springframework.http.HttpRequest;
|
||||||
|
import org.springframework.stereotype.Component;
|
||||||
|
|
||||||
|
/**
|
||||||
|
*
|
||||||
|
* Customize the business tag information obtained from the request
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-12
|
||||||
|
*/
|
||||||
|
@Component
|
||||||
|
public class CustomRouterLabelResolver implements RouterLabelResolver {
|
||||||
|
private final Gson gson = new Gson();
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Map<String, String> resolve(RequestTemplate requestTemplate) {
|
||||||
|
Map<String, String> labels = new HashMap<>();
|
||||||
|
|
||||||
|
User user = gson.fromJson(new String(requestTemplate.body()), User.class);
|
||||||
|
|
||||||
|
labels.put("user", user.getName());
|
||||||
|
|
||||||
|
return labels;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Map<String, String> resolve(HttpRequest request, byte[] body) {
|
||||||
|
Map<String, String> labels = new HashMap<>();
|
||||||
|
User user = gson.fromJson(new String(body), User.class);
|
||||||
|
|
||||||
|
labels.put("user", user.getName());
|
||||||
|
return labels;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,45 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.router.example;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* demo object.
|
||||||
|
* @author lepdou 2022-05-12
|
||||||
|
*/
|
||||||
|
public class User {
|
||||||
|
|
||||||
|
private String name;
|
||||||
|
private int age;
|
||||||
|
|
||||||
|
public String getName() {
|
||||||
|
return name;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setName(String name) {
|
||||||
|
this.name = name;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int getAge() {
|
||||||
|
return age;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setAge(int age) {
|
||||||
|
this.age = age;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,117 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.context;
|
||||||
|
|
||||||
|
import java.util.ArrayList;
|
||||||
|
import java.util.HashSet;
|
||||||
|
import java.util.List;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import com.tencent.polaris.api.pojo.DefaultServiceEventKeysProvider;
|
||||||
|
import com.tencent.polaris.api.pojo.ServiceEventKey;
|
||||||
|
import com.tencent.polaris.api.pojo.ServiceKey;
|
||||||
|
import com.tencent.polaris.api.pojo.ServiceRule;
|
||||||
|
import com.tencent.polaris.client.api.SDKContext;
|
||||||
|
import com.tencent.polaris.client.flow.BaseFlow;
|
||||||
|
import com.tencent.polaris.client.flow.DefaultFlowControlParam;
|
||||||
|
import com.tencent.polaris.client.flow.FlowControlParam;
|
||||||
|
import com.tencent.polaris.client.flow.ResourcesResponse;
|
||||||
|
import com.tencent.polaris.client.pb.RateLimitProto;
|
||||||
|
import com.tencent.polaris.client.pb.RoutingProto;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* the manager of service governance rules. for example: rate limit rule, router rules.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-13
|
||||||
|
*/
|
||||||
|
public class ServiceRuleManager {
|
||||||
|
|
||||||
|
private final SDKContext sdkContext;
|
||||||
|
|
||||||
|
private final FlowControlParam controlParam;
|
||||||
|
|
||||||
|
public ServiceRuleManager(SDKContext sdkContext) {
|
||||||
|
this.sdkContext = sdkContext;
|
||||||
|
controlParam = new DefaultFlowControlParam();
|
||||||
|
controlParam.setTimeoutMs(sdkContext.getConfig().getGlobal().getAPI().getTimeout());
|
||||||
|
controlParam.setMaxRetry(sdkContext.getConfig().getGlobal().getAPI().getMaxRetryTimes());
|
||||||
|
controlParam.setRetryIntervalMs(sdkContext.getConfig().getGlobal().getAPI().getRetryInterval());
|
||||||
|
}
|
||||||
|
|
||||||
|
public RateLimitProto.RateLimit getServiceRateLimitRule(String namespace, String service) {
|
||||||
|
ServiceEventKey serviceEventKey = new ServiceEventKey(new ServiceKey(namespace, service),
|
||||||
|
ServiceEventKey.EventType.RATE_LIMITING);
|
||||||
|
|
||||||
|
DefaultServiceEventKeysProvider svcKeysProvider = new DefaultServiceEventKeysProvider();
|
||||||
|
svcKeysProvider.setSvcEventKey(serviceEventKey);
|
||||||
|
|
||||||
|
ResourcesResponse resourcesResponse = BaseFlow
|
||||||
|
.syncGetResources(sdkContext.getExtensions(), true, svcKeysProvider, controlParam);
|
||||||
|
|
||||||
|
ServiceRule serviceRule = resourcesResponse.getServiceRule(serviceEventKey);
|
||||||
|
if (serviceRule != null) {
|
||||||
|
Object rule = serviceRule.getRule();
|
||||||
|
if (rule instanceof RateLimitProto.RateLimit) {
|
||||||
|
return (RateLimitProto.RateLimit) rule;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
public List<RoutingProto.Route> getServiceRouterRule(String namespace, String sourceService, String dstService) {
|
||||||
|
Set<ServiceEventKey> routerKeys = new HashSet<>();
|
||||||
|
|
||||||
|
ServiceEventKey dstSvcEventKey = new ServiceEventKey(new ServiceKey(namespace, dstService),
|
||||||
|
ServiceEventKey.EventType.ROUTING);
|
||||||
|
routerKeys.add(dstSvcEventKey);
|
||||||
|
|
||||||
|
ServiceEventKey srcSvcEventKey = new ServiceEventKey(new ServiceKey(namespace, sourceService),
|
||||||
|
ServiceEventKey.EventType.ROUTING);
|
||||||
|
|
||||||
|
DefaultServiceEventKeysProvider svcKeysProvider = new DefaultServiceEventKeysProvider();
|
||||||
|
svcKeysProvider.setSvcEventKeys(routerKeys);
|
||||||
|
|
||||||
|
|
||||||
|
ResourcesResponse resourcesResponse = BaseFlow
|
||||||
|
.syncGetResources(sdkContext.getExtensions(), true, svcKeysProvider, controlParam);
|
||||||
|
|
||||||
|
List<RoutingProto.Route> rules = new ArrayList<>();
|
||||||
|
|
||||||
|
//get source service outbound rules.
|
||||||
|
ServiceRule sourceServiceRule = resourcesResponse.getServiceRule(srcSvcEventKey);
|
||||||
|
if (sourceServiceRule != null) {
|
||||||
|
Object rule = sourceServiceRule.getRule();
|
||||||
|
if (rule instanceof RoutingProto.Routing) {
|
||||||
|
rules.addAll(((RoutingProto.Routing) rule).getOutboundsList());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//get peer service inbound rules.
|
||||||
|
ServiceRule dstServiceRule = resourcesResponse.getServiceRule(dstSvcEventKey);
|
||||||
|
if (dstServiceRule != null) {
|
||||||
|
Object rule = dstServiceRule.getRule();
|
||||||
|
if (rule instanceof RoutingProto.Routing) {
|
||||||
|
rules.addAll(((RoutingProto.Routing) rule).getInboundsList());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return rules;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,58 @@
|
|||||||
|
/*
|
||||||
|
* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
|
||||||
|
*
|
||||||
|
* Licensed under the BSD 3-Clause License (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* https://opensource.org/licenses/BSD-3-Clause
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software distributed
|
||||||
|
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||||
|
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||||
|
* specific language governing permissions and limitations under the License.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
package com.tencent.cloud.polaris.loadbalancer;
|
||||||
|
|
||||||
|
import java.util.ArrayList;
|
||||||
|
import java.util.List;
|
||||||
|
|
||||||
|
import com.netflix.loadbalancer.Server;
|
||||||
|
import com.tencent.cloud.common.metadata.MetadataContext;
|
||||||
|
import com.tencent.cloud.common.pojo.PolarisServer;
|
||||||
|
import com.tencent.polaris.api.pojo.DefaultServiceInstances;
|
||||||
|
import com.tencent.polaris.api.pojo.Instance;
|
||||||
|
import com.tencent.polaris.api.pojo.ServiceInstances;
|
||||||
|
import com.tencent.polaris.api.pojo.ServiceKey;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* load balancer utils.
|
||||||
|
*
|
||||||
|
*@author lepdou 2022-05-17
|
||||||
|
*/
|
||||||
|
public class LoadBalancerUtils {
|
||||||
|
|
||||||
|
public static ServiceInstances transferServersToServiceInstances(List<Server> servers) {
|
||||||
|
List<Instance> instances = new ArrayList<>(servers.size());
|
||||||
|
String serviceName = null;
|
||||||
|
|
||||||
|
for (Server server : servers) {
|
||||||
|
if (server instanceof PolarisServer) {
|
||||||
|
Instance instance = ((PolarisServer) server).getInstance();
|
||||||
|
instances.add(instance);
|
||||||
|
|
||||||
|
if (serviceName == null) {
|
||||||
|
serviceName = instance.getService();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ServiceKey serviceKey = new ServiceKey(MetadataContext.LOCAL_NAMESPACE, serviceName);
|
||||||
|
|
||||||
|
return new DefaultServiceInstances(serviceKey, instances);
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in new issue