wulingxiao
3 years ago
parent
e011700d11
commit
90d6d18c1b
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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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*/
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package com.tencent.cloud.polaris.config.adapter;
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import java.util.Set;
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/**
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* @author lingxiao.wlx
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*/
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public interface PolarisPropertySourceRefresher {
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/**
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* refresh the attribute with @Value annotation.
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*
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* @param changedKey changedKey
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*/
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void refreshSpringValue(String changedKey);
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/**
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* refresh @ConfigurationProperties beans.
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* @param changeKeys changeKeys
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*/
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void refreshConfigurationProperties(Set<String> changeKeys);
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}
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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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*/
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package com.tencent.cloud.polaris.config.adapter;
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import java.util.Collection;
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import java.util.Set;
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import com.tencent.cloud.common.util.JacksonUtils;
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import com.tencent.cloud.polaris.config.config.PolarisConfigProperties;
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import com.tencent.cloud.polaris.config.spring.property.PlaceholderHelper;
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import com.tencent.cloud.polaris.config.spring.property.SpringValue;
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import com.tencent.cloud.polaris.config.spring.property.SpringValueRegistry;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.BeansException;
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import org.springframework.beans.TypeConverter;
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import org.springframework.beans.factory.config.ConfigurableBeanFactory;
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import org.springframework.cloud.context.environment.EnvironmentChangeEvent;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextAware;
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import org.springframework.context.ConfigurableApplicationContext;
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/**
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* @author lingxiao.wlx
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*/
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public class PolarisReflectPropertySourceAutoRefresher extends PolarisPropertySourceAutoRefresher
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implements ApplicationContextAware {
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private static final Logger LOGGER = LoggerFactory.getLogger(PolarisReflectPropertySourceAutoRefresher.class);
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private final SpringValueRegistry springValueRegistry;
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private final PlaceholderHelper placeholderHelper;
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private ConfigurableApplicationContext context;
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private ConfigurableBeanFactory beanFactory;
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private TypeConverter typeConverter;
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public PolarisReflectPropertySourceAutoRefresher(PolarisConfigProperties polarisConfigProperties,
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PolarisPropertySourceManager polarisPropertySourceManager, SpringValueRegistry springValueRegistry,
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PlaceholderHelper placeholderHelper) {
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super(polarisConfigProperties, polarisPropertySourceManager);
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this.springValueRegistry = springValueRegistry;
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this.placeholderHelper = placeholderHelper;
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}
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@Override
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public void refreshSpringValue(String changedKey) {
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Collection<SpringValue> targetValues = springValueRegistry.get(beanFactory, changedKey);
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if (targetValues == null || targetValues.isEmpty()) {
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return;
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}
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// update the attribute with @Value annotation
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for (SpringValue val : targetValues) {
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updateSpringValue(val);
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}
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}
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@Override
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public void refreshConfigurationProperties(Set<String> changeKeys) {
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context.publishEvent(new EnvironmentChangeEvent(context, changeKeys));
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}
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private void updateSpringValue(SpringValue springValue) {
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try {
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Object value = resolvePropertyValue(springValue);
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springValue.update(value);
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LOGGER.info("Auto update polaris changed value successfully, new value: {}, {}", value,
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springValue);
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}
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catch (Throwable ex) {
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LOGGER.error("Auto update polaris changed value failed, {}", springValue.toString(), ex);
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}
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}
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/**
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* Logic transplanted from DefaultListableBeanFactory.
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*
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* @see org.springframework.beans.factory.support.DefaultListableBeanFactory#doResolveDependency(org.springframework.beans.factory.config.DependencyDescriptor,
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* java.lang.String, java.util.Set, org.springframework.beans.TypeConverter)
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*/
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private Object resolvePropertyValue(SpringValue springValue) {
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// value will never be null
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Object value = placeholderHelper
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.resolvePropertyValue(beanFactory, springValue.getBeanName(), springValue.getPlaceholder());
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if (springValue.isJson()) {
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value = parseJsonValue((String) value, springValue.getTargetType());
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}
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else {
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value = springValue.isField() ? this.typeConverter.convertIfNecessary(value, springValue.getTargetType(), springValue.getField()) :
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this.typeConverter.convertIfNecessary(value, springValue.getTargetType(),
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springValue.getMethodParameter());
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}
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return value;
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}
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private Object parseJsonValue(String json, Class<?> targetType) {
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try {
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return JacksonUtils.json2JavaBean(json, targetType);
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}
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catch (Throwable ex) {
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LOGGER.error("Parsing json '{}' to type {} failed!", json, targetType, ex);
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throw ex;
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}
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}
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@Override
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public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
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this.context = (ConfigurableApplicationContext) applicationContext;
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this.beanFactory = ((ConfigurableApplicationContext) applicationContext).getBeanFactory();
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this.typeConverter = this.beanFactory.getTypeConverter();
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}
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}
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@ -0,0 +1,49 @@
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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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*/
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package com.tencent.cloud.polaris.config.adapter;
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import java.util.Set;
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import com.tencent.cloud.polaris.config.config.PolarisConfigProperties;
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import org.springframework.cloud.context.refresh.ContextRefresher;
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/**
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* @author lingxiao.wlx
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*/
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public class PolarisRefreshContextPropertySourceAutoRefresher extends PolarisPropertySourceAutoRefresher {
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private final ContextRefresher contextRefresher;
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public PolarisRefreshContextPropertySourceAutoRefresher(PolarisConfigProperties polarisConfigProperties,
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PolarisPropertySourceManager polarisPropertySourceManager,
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ContextRefresher contextRefresher) {
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super(polarisConfigProperties, polarisPropertySourceManager);
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this.contextRefresher = contextRefresher;
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}
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@Override
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public void refreshSpringValue(String changedKey) {
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}
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@Override
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public void refreshConfigurationProperties(Set<String> changeKeys) {
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contextRefresher.refresh();
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}
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}
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@ -0,0 +1,53 @@
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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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*/
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package com.tencent.cloud.polaris.config.condition;
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import com.tencent.cloud.polaris.config.enums.RefreshType;
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import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
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import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
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import org.springframework.context.annotation.ConditionContext;
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import org.springframework.core.type.AnnotatedTypeMetadata;
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/**
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* @author lingxiao.wlx
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*/
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public class ConfigReflectCondition extends SpringBootCondition {
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/**
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* Refresh type config.
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*/
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public static final String POLARIS_CONFIG_REFRESH_TYPE = "spring.cloud.polaris.config.refresh-type";
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/**
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* Refresh type default value.
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*/
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private static final RefreshType DEFAULT_REFRESH_TYPE = RefreshType.REFRESH_CONTEXT;
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@Override
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public ConditionOutcome getMatchOutcome(ConditionContext context, AnnotatedTypeMetadata metadata) {
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RefreshType refreshType = context.getEnvironment().getProperty(
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POLARIS_CONFIG_REFRESH_TYPE, RefreshType.class,
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DEFAULT_REFRESH_TYPE);
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if (DEFAULT_REFRESH_TYPE == refreshType) {
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return ConditionOutcome.noMatch("no matched");
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}
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return ConditionOutcome.match("matched");
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}
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}
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