misselvexu
3 years ago
parent
41e1b049b7
commit
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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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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.polaris.circuitbreaker;
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import java.util.List;
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import java.util.Objects;
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import com.tencent.cloud.polaris.circuitbreaker.config.PolarisCircuitBreakerProperties;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.http.HttpStatus;
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import org.springframework.lang.Nullable;
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import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR;
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/**
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* Abstract Polaris Circuit-Break Adapter .
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*
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* @author <a href="mailto:iskp.me@gmail.com">Elve.Xu</a> 2022-07-11
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*/
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public abstract class AbstractPolarisCircuitBreakAdapter {
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private static final Logger LOG = LoggerFactory.getLogger(AbstractPolarisCircuitBreakAdapter.class);
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protected final PolarisCircuitBreakerProperties properties;
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/**
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* Constructor With {@link PolarisCircuitBreakerProperties} .
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*
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* @param properties instance of {@link PolarisCircuitBreakerProperties}.
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*/
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protected AbstractPolarisCircuitBreakAdapter(PolarisCircuitBreakerProperties properties) {
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this.properties = properties;
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}
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/**
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* Callback after completion of request processing, Check if business meltdown reporting is required.
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*
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* @param httpStatus request http status code
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* @return true , otherwise return false .
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*/
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protected boolean apply(@Nullable HttpStatus httpStatus) {
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if (Objects.isNull(httpStatus)) {
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return false;
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}
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else {
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// statuses > series
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List<HttpStatus> status = properties.getStatuses();
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if (status.isEmpty()) {
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List<HttpStatus.Series> series = properties.getSeries();
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// Check INTERNAL_SERVER_ERROR (500) status.
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if (properties.getIgnoreInternalServerError() && Objects.equals(httpStatus, INTERNAL_SERVER_ERROR)) {
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return false;
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}
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if (series.isEmpty()) {
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return false;
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}
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else {
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try {
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return series.contains(HttpStatus.Series.valueOf(httpStatus));
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}
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catch (Exception e) {
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LOG.warn("Decode http status failed.", e);
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}
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}
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}
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else {
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// Use the user-specified fuse status code.
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return status.contains(httpStatus);
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}
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}
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// DEFAULT RETURN FALSE.
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return false;
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}
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}
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@ -0,0 +1,117 @@
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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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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.polaris.circuitbreaker;
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import com.tencent.cloud.polaris.circuitbreaker.config.PolarisCircuitBreakerProperties;
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import org.assertj.core.api.Assertions;
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import org.junit.Test;
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import org.springframework.http.HttpStatus;
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/**
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* Test For {@link AbstractPolarisCircuitBreakAdapter}.
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*
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* @author <a href="mailto:iskp.me@gmail.com">Elve.Xu</a>
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* @version ${project.version} - 2022/7/11
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*/
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public class AbstractPolarisCircuitBreakAdapterTest {
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@Test
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public void testApplyWithDefaultConfig() {
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PolarisCircuitBreakerProperties properties = new PolarisCircuitBreakerProperties();
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// Mock Condition
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SimplePolarisCircuitBreakAdapter adapter = new SimplePolarisCircuitBreakAdapter(properties);
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// Assert
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Assertions.assertThat(adapter.apply(HttpStatus.OK)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.INTERNAL_SERVER_ERROR)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.BAD_GATEWAY)).isEqualTo(true);
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}
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@Test
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public void testApplyWithoutIgnoreInternalServerError() {
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PolarisCircuitBreakerProperties properties = new PolarisCircuitBreakerProperties();
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// Mock Condition
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properties.getStatuses().clear();
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properties.setIgnoreInternalServerError(false);
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SimplePolarisCircuitBreakAdapter adapter = new SimplePolarisCircuitBreakAdapter(properties);
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// Assert
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Assertions.assertThat(adapter.apply(HttpStatus.OK)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.INTERNAL_SERVER_ERROR)).isEqualTo(true);
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Assertions.assertThat(adapter.apply(HttpStatus.BAD_GATEWAY)).isEqualTo(true);
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}
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@Test
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public void testApplyWithIgnoreInternalServerError() {
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PolarisCircuitBreakerProperties properties = new PolarisCircuitBreakerProperties();
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// Mock Condition
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properties.getStatuses().clear();
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properties.setIgnoreInternalServerError(true);
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SimplePolarisCircuitBreakAdapter adapter = new SimplePolarisCircuitBreakAdapter(properties);
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// Assert
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Assertions.assertThat(adapter.apply(HttpStatus.OK)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.INTERNAL_SERVER_ERROR)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.BAD_GATEWAY)).isEqualTo(true);
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}
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@Test
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public void testApplyWithoutSeries() {
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PolarisCircuitBreakerProperties properties = new PolarisCircuitBreakerProperties();
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// Mock Condition
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properties.getStatuses().clear();
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properties.getSeries().clear();
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SimplePolarisCircuitBreakAdapter adapter = new SimplePolarisCircuitBreakAdapter(properties);
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// Assert
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Assertions.assertThat(adapter.apply(HttpStatus.OK)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.INTERNAL_SERVER_ERROR)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.BAD_GATEWAY)).isEqualTo(false);
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}
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@Test
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public void testApplyWithSeries() {
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PolarisCircuitBreakerProperties properties = new PolarisCircuitBreakerProperties();
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// Mock Condition
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properties.getStatuses().clear();
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properties.getSeries().clear();
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properties.getSeries().add(HttpStatus.Series.CLIENT_ERROR);
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SimplePolarisCircuitBreakAdapter adapter = new SimplePolarisCircuitBreakAdapter(properties);
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// Assert
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Assertions.assertThat(adapter.apply(HttpStatus.OK)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.INTERNAL_SERVER_ERROR)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.BAD_GATEWAY)).isEqualTo(false);
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Assertions.assertThat(adapter.apply(HttpStatus.FORBIDDEN)).isEqualTo(true);
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}
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/**
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* Simple Polaris CircuitBreak Adapter Implements .
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*/
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public static class SimplePolarisCircuitBreakAdapter extends AbstractPolarisCircuitBreakAdapter {
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public SimplePolarisCircuitBreakAdapter(PolarisCircuitBreakerProperties properties) {
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super(properties);
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}
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}
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}
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