weihu
3 years ago
parent
c347054f40
commit
b5e06b906a
@ -0,0 +1,41 @@
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package com.tencent.cloud.polaris.config.config;
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import java.util.Set;
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import com.tencent.cloud.polaris.config.listener.ConfigChangeListener;
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/**
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*@author : wh
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*@date : 2022/7/10 23:10
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*@description:
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*/
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public class ConfigPropertySource extends EnumerablePropertySource<Config> {
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private static final String[] EMPTY_ARRAY = new String[0];
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ConfigPropertySource(String name, Config source) {
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super(name, source);
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}
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@Override
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public boolean containsProperty(String name) {
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return this.source.getProperty(name, null) != null;
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}
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@Override
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public String[] getPropertyNames() {
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Set<String> propertyNames = this.source.getPropertyNames();
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if (propertyNames.isEmpty()) {
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return EMPTY_ARRAY;
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}
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return propertyNames.toArray(new String[propertyNames.size()]);
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}
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@Override
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public Object getProperty(String name) {
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return this.source.getProperty(name, null);
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}
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public void addChangeListener(ConfigChangeListener listener) {
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this.source.addChangeListener(listener);
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}
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}
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@ -0,0 +1,27 @@
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package com.tencent.cloud.polaris.config.config;
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import java.util.List;
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import com.google.common.collect.Lists;
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/**
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*@author : wh
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*@date : 2022/7/10 23:10
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*@description:
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*/
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public class ConfigPropertySourceFactory {
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private final List<ConfigPropertySource> configPropertySources = Lists.newLinkedList();
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public ConfigPropertySource getConfigPropertySource(String name, Config source) {
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ConfigPropertySource configPropertySource = new ConfigPropertySource(name, source);
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configPropertySources.add(configPropertySource);
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return configPropertySource;
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}
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public List<ConfigPropertySource> getAllConfigPropertySources() {
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return Lists.newLinkedList(configPropertySources);
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}
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}
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@ -0,0 +1,158 @@
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package com.tencent.cloud.polaris.config.config;
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import java.util.Collection;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import com.google.common.collect.ImmutableSortedSet;
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import com.google.common.collect.LinkedHashMultimap;
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import com.google.common.collect.Multimap;
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import com.google.common.collect.Sets;
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import com.tencent.cloud.polaris.config.listener.ConfigChangeListener;
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import org.springframework.beans.BeansException;
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import org.springframework.beans.factory.BeanFactory;
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import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
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import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
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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.EnvironmentAware;
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import org.springframework.core.Ordered;
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import org.springframework.core.PriorityOrdered;
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import org.springframework.core.env.CompositePropertySource;
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import org.springframework.core.env.ConfigurableEnvironment;
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import org.springframework.core.env.Environment;
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import org.springframework.core.env.MutablePropertySources;
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import org.springframework.core.env.PropertySource;
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import org.springframework.core.env.StandardEnvironment;
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/**
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*@author : wh
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*@date : 2022/7/10 23:09
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*@description:
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*/
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public class PropertySourcesProcessor implements BeanFactoryPostProcessor, EnvironmentAware,
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ApplicationEventPublisherAware, PriorityOrdered {
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private static final Multimap<Integer, String> NAMESPACE_NAMES = LinkedHashMultimap.create();
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private static final Set<BeanFactory> AUTO_UPDATE_INITIALIZED_BEAN_FACTORIES = Sets.newConcurrentHashSet();
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private final ConfigPropertySourceFactory configPropertySourceFactory = SpringInjector
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.getInstance(ConfigPropertySourceFactory.class);
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private ConfigUtil configUtil;
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private ConfigurableEnvironment environment;
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private ApplicationEventPublisher applicationEventPublisher;
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public static boolean addNamespaces(Collection<String> namespaces, int order) {
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return NAMESPACE_NAMES.putAll(order, namespaces);
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}
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@Override
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public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
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this.configUtil = ApolloInjector.getInstance(ConfigUtil.class);
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initializePropertySources();
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initializeAutoUpdatePropertiesFeature(beanFactory);
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}
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private void initializePropertySources() {
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if (environment.getPropertySources().contains(PropertySourcesConstants.APOLLO_PROPERTY_SOURCE_NAME)) {
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//already initialized
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return;
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}
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CompositePropertySource composite;
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if (configUtil.isPropertyNamesCacheEnabled()) {
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composite = new CachedCompositePropertySource(PropertySourcesConstants.APOLLO_PROPERTY_SOURCE_NAME);
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} else {
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composite = new CompositePropertySource(PropertySourcesConstants.APOLLO_PROPERTY_SOURCE_NAME);
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}
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//sort by order asc
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ImmutableSortedSet<Integer> orders = ImmutableSortedSet.copyOf(NAMESPACE_NAMES.keySet());
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Iterator<Integer> iterator = orders.iterator();
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while (iterator.hasNext()) {
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int order = iterator.next();
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for (String namespace : NAMESPACE_NAMES.get(order)) {
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Config config = ConfigService.getConfig(namespace);
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composite.addPropertySource(configPropertySourceFactory.getConfigPropertySource(namespace, config));
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}
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}
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// clean up
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NAMESPACE_NAMES.clear();
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// add after the bootstrap property source or to the first
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if (environment.getPropertySources()
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.contains(PropertySourcesConstants.APOLLO_BOOTSTRAP_PROPERTY_SOURCE_NAME)) {
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if (configUtil.isOverrideSystemProperties()) {
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// ensure ApolloBootstrapPropertySources is still the first
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ensureBootstrapPropertyPrecedence(environment);
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}
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environment.getPropertySources()
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.addAfter(PropertySourcesConstants.APOLLO_BOOTSTRAP_PROPERTY_SOURCE_NAME, composite);
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} else {
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if (!configUtil.isOverrideSystemProperties()) {
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if (environment.getPropertySources().contains(StandardEnvironment.SYSTEM_ENVIRONMENT_PROPERTY_SOURCE_NAME)) {
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environment.getPropertySources().addAfter(StandardEnvironment.SYSTEM_ENVIRONMENT_PROPERTY_SOURCE_NAME, composite);
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return;
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}
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}
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environment.getPropertySources().addFirst(composite);
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}
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}
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private void ensureBootstrapPropertyPrecedence(ConfigurableEnvironment environment) {
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MutablePropertySources propertySources = environment.getPropertySources();
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PropertySource<?> bootstrapPropertySource = propertySources
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.get(PropertySourcesConstants.APOLLO_BOOTSTRAP_PROPERTY_SOURCE_NAME);
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// not exists or already in the first place
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if (bootstrapPropertySource == null || propertySources.precedenceOf(bootstrapPropertySource) == 0) {
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return;
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}
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propertySources.remove(PropertySourcesConstants.APOLLO_BOOTSTRAP_PROPERTY_SOURCE_NAME);
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propertySources.addFirst(bootstrapPropertySource);
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}
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private void initializeAutoUpdatePropertiesFeature(ConfigurableListableBeanFactory beanFactory) {
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if (!AUTO_UPDATE_INITIALIZED_BEAN_FACTORIES.add(beanFactory)) {
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return;
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}
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ConfigChangeListener configChangeEventPublisher = changeEvent ->
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applicationEventPublisher.publishEvent(new ApolloConfigChangeEvent(changeEvent));
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List<ConfigPropertySource> configPropertySources = configPropertySourceFactory.getAllConfigPropertySources();
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for (ConfigPropertySource configPropertySource : configPropertySources) {
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configPropertySource.addChangeListener(configChangeEventPublisher);
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}
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}
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@Override
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public void setEnvironment(Environment environment) {
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//it is safe enough to cast as all known environment is derived from ConfigurableEnvironment
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this.environment = (ConfigurableEnvironment) environment;
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}
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@Override
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public int getOrder() {
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//make it as early as possible
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return Ordered.HIGHEST_PRECEDENCE;
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}
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// for test only
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static void reset() {
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NAMESPACE_NAMES.clear();
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AUTO_UPDATE_INITIALIZED_BEAN_FACTORIES.clear();
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}
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@Override
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public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
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this.applicationEventPublisher = applicationEventPublisher;
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}
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}
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@ -0,0 +1,223 @@
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/*
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package com.tencent.cloud.polaris.config.spring.annotation;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.lang.reflect.Type;
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import java.util.Set;
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import com.google.common.base.Preconditions;
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import com.google.common.collect.Sets;
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import com.google.gson.Gson;
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import com.tencent.cloud.polaris.config.listener.ConfigChangeEvent;
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import com.tencent.cloud.polaris.config.listener.ConfigChangeListener;
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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.factory.BeanFactory;
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import org.springframework.beans.factory.BeanFactoryAware;
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import org.springframework.beans.factory.config.ConfigurableBeanFactory;
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import org.springframework.context.EnvironmentAware;
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import org.springframework.core.annotation.AnnotationUtils;
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import org.springframework.core.env.Environment;
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import org.springframework.util.ReflectionUtils;
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*/
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/**
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*@author : wh
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*@date : 2022/7/10 14:38
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*@description:
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*//*
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public class PolarisAnnotationProcessor extends PolarisProcessor implements BeanFactoryAware,
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EnvironmentAware {
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private static final Logger logger = LoggerFactory.getLogger(PolarisAnnotationProcessor.class);
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private static final Gson GSON = new Gson();
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private final ConfigUtil configUtil;
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private final PlaceholderHelper placeholderHelper;
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private final SpringValueRegistry springValueRegistry;
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*/
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/**
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* resolve the expression.
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*//*
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private ConfigurableBeanFactory configurableBeanFactory;
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private Environment environment;
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public PolarisAnnotationProcessor(PlaceholderHelper placeholderHelper,
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SpringValueRegistry springValueRegistry) {
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configUtil = ApolloInjector.getInstance(ConfigUtil.class);
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this.placeholderHelper = placeholderHelper;
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this.springValueRegistry = springValueRegistry;
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}
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@Override
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protected void processField(Object bean, String beanName, Field field) {
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this.processApolloConfig(bean, field);
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this.processApolloJsonValue(bean, beanName, field);
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}
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@Override
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protected void processMethod(final Object bean, String beanName, final Method method) {
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this.processApolloConfigChangeListener(bean, method);
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this.processApolloJsonValue(bean, beanName, method);
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}
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private void processApolloConfig(Object bean, Field field) {
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ApolloConfig annotation = AnnotationUtils.getAnnotation(field, ApolloConfig.class);
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if (annotation == null) {
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return;
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}
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Preconditions.checkArgument(Config.class.isAssignableFrom(field.getType()),
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"Invalid type: %s for field: %s, should be Config", field.getType(), field);
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final String namespace = annotation.value();
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final String resolvedNamespace = this.environment.resolveRequiredPlaceholders(namespace);
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Config config = ConfigService.getConfig(resolvedNamespace);
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ReflectionUtils.makeAccessible(field);
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ReflectionUtils.setField(field, bean, config);
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}
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private void processApolloConfigChangeListener(final Object bean, final Method method) {
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ApolloConfigChangeListener annotation = AnnotationUtils
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.findAnnotation(method, ApolloConfigChangeListener.class);
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if (annotation == null) {
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return;
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}
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Class<?>[] parameterTypes = method.getParameterTypes();
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Preconditions.checkArgument(parameterTypes.length == 1,
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"Invalid number of parameters: %s for method: %s, should be 1", parameterTypes.length,
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method);
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Preconditions.checkArgument(ConfigChangeEvent.class.isAssignableFrom(parameterTypes[0]),
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"Invalid parameter type: %s for method: %s, should be ConfigChangeEvent", parameterTypes[0],
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method);
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ReflectionUtils.makeAccessible(method);
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String[] namespaces = annotation.value();
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String[] annotatedInterestedKeys = annotation.interestedKeys();
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String[] annotatedInterestedKeyPrefixes = annotation.interestedKeyPrefixes();
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ConfigChangeListener configChangeListener = new ConfigChangeListener() {
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@Override
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public void onChange(ConfigChangeEvent changeEvent) {
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ReflectionUtils.invokeMethod(method, bean, changeEvent);
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}
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};
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Set<String> interestedKeys =
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annotatedInterestedKeys.length > 0 ? Sets.newHashSet(annotatedInterestedKeys) : null;
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Set<String> interestedKeyPrefixes =
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annotatedInterestedKeyPrefixes.length > 0 ? Sets.newHashSet(annotatedInterestedKeyPrefixes)
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: null;
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for (String namespace : namespaces) {
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final String resolvedNamespace = this.environment.resolveRequiredPlaceholders(namespace);
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Config config = ConfigService.getConfig(resolvedNamespace);
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if (interestedKeys == null && interestedKeyPrefixes == null) {
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config.addChangeListener(configChangeListener);
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}
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else {
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config.addChangeListener(configChangeListener, interestedKeys, interestedKeyPrefixes);
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}
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}
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}
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private void processApolloJsonValue(Object bean, String beanName, Field field) {
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ApolloJsonValue apolloJsonValue = AnnotationUtils.getAnnotation(field, ApolloJsonValue.class);
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if (apolloJsonValue == null) {
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return;
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}
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String placeholder = apolloJsonValue.value();
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Object propertyValue = placeholderHelper
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.resolvePropertyValue(this.configurableBeanFactory, beanName, placeholder);
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// propertyValue will never be null, as @ApolloJsonValue will not allow that
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if (!(propertyValue instanceof String)) {
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return;
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}
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boolean accessible = field.isAccessible();
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field.setAccessible(true);
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ReflectionUtils
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.setField(field, bean, parseJsonValue((String) propertyValue, field.getGenericType()));
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field.setAccessible(accessible);
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if (configUtil.isAutoUpdateInjectedSpringPropertiesEnabled()) {
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Set<String> keys = placeholderHelper.extractPlaceholderKeys(placeholder);
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for (String key : keys) {
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SpringValue springValue = new SpringValue(key, placeholder, bean, beanName, field, true);
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springValueRegistry.register(this.configurableBeanFactory, key, springValue);
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logger.debug("Monitoring {}", springValue);
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}
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}
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}
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private void processApolloJsonValue(Object bean, String beanName, Method method) {
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ApolloJsonValue apolloJsonValue = AnnotationUtils.getAnnotation(method, ApolloJsonValue.class);
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if (apolloJsonValue == null) {
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return;
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}
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String placeHolder = apolloJsonValue.value();
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Object propertyValue = placeholderHelper
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.resolvePropertyValue(this.configurableBeanFactory, beanName, placeHolder);
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// propertyValue will never be null, as @ApolloJsonValue will not allow that
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if (!(propertyValue instanceof String)) {
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return;
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}
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Type[] types = method.getGenericParameterTypes();
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Preconditions.checkArgument(types.length == 1,
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"Ignore @Value setter {}.{}, expecting 1 parameter, actual {} parameters",
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bean.getClass().getName(), method.getName(), method.getParameterTypes().length);
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boolean accessible = method.isAccessible();
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method.setAccessible(true);
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ReflectionUtils.invokeMethod(method, bean, parseJsonValue((String) propertyValue, types[0]));
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method.setAccessible(accessible);
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if (configUtil.isAutoUpdateInjectedSpringPropertiesEnabled()) {
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Set<String> keys = placeholderHelper.extractPlaceholderKeys(placeHolder);
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for (String key : keys) {
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SpringValue springValue = new SpringValue(key, apolloJsonValue.value(), bean, beanName,
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method, true);
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springValueRegistry.register(this.configurableBeanFactory, key, springValue);
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logger.debug("Monitoring {}", springValue);
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}
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}
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}
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private Object parseJsonValue(String json, Type targetType) {
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try {
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return GSON.fromJson(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 setBeanFactory(BeanFactory beanFactory) throws BeansException {
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this.configurableBeanFactory = (ConfigurableBeanFactory) beanFactory;
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}
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@Override
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public void setEnvironment(Environment environment) {
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this.environment = environment;
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}
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}
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*/
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@ -0,0 +1,13 @@
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/*
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package com.tencent.cloud.polaris.config.spring.annotation;
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*/
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/**
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*@author : wh
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*@date : 2022/7/10 14:38
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*@description:
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*//*
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public class PolarisConfig {
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}
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*/
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@ -0,0 +1,67 @@
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package com.tencent.cloud.polaris.config.spring.annotation;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.LinkedList;
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import java.util.List;
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import org.springframework.beans.BeansException;
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import org.springframework.beans.factory.config.BeanPostProcessor;
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import org.springframework.core.Ordered;
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import org.springframework.core.PriorityOrdered;
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import org.springframework.util.ReflectionUtils;
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|
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/**
|
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*@author : wh
|
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*@date : 2022/7/10 14:35
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*@description:
|
||||
*/
|
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public abstract class PolarisProcessor implements BeanPostProcessor, PriorityOrdered {
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|
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@Override
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public Object postProcessBeforeInitialization(Object bean, String beanName)
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throws BeansException {
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Class clazz = bean.getClass();
|
||||
for (Field field : findAllField(clazz)) {
|
||||
processField(bean, beanName, field);
|
||||
}
|
||||
for (Method method : findAllMethod(clazz)) {
|
||||
processMethod(bean, beanName, method);
|
||||
}
|
||||
return bean;
|
||||
}
|
||||
|
||||
@Override
|
||||
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
|
||||
return bean;
|
||||
}
|
||||
|
||||
/**
|
||||
* subclass should implement this method to process field
|
||||
*/
|
||||
protected abstract void processField(Object bean, String beanName, Field field);
|
||||
|
||||
/**
|
||||
* subclass should implement this method to process method
|
||||
*/
|
||||
protected abstract void processMethod(Object bean, String beanName, Method method);
|
||||
|
||||
|
||||
@Override
|
||||
public int getOrder() {
|
||||
//make it as late as possible
|
||||
return Ordered.LOWEST_PRECEDENCE;
|
||||
}
|
||||
|
||||
private List<Field> findAllField(Class clazz) {
|
||||
final List<Field> res = new LinkedList<>();
|
||||
ReflectionUtils.doWithFields(clazz, field -> res.add(field));
|
||||
return res;
|
||||
}
|
||||
|
||||
private List<Method> findAllMethod(Class clazz) {
|
||||
final List<Method> res = new LinkedList<>();
|
||||
ReflectionUtils.doWithMethods(clazz, method -> res.add(method));
|
||||
return res;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,167 @@
|
||||
package com.tencent.cloud.polaris.config.spring.annotation;
|
||||
|
||||
import java.beans.PropertyDescriptor;
|
||||
import java.lang.reflect.Field;
|
||||
import java.lang.reflect.Member;
|
||||
import java.lang.reflect.Method;
|
||||
import java.util.Collection;
|
||||
import java.util.Set;
|
||||
|
||||
import com.google.common.collect.LinkedListMultimap;
|
||||
import com.google.common.collect.Multimap;
|
||||
import com.tencent.cloud.polaris.config.config.PolarisConfigProperties;
|
||||
import com.tencent.cloud.polaris.config.spring.property.PlaceholderHelper;
|
||||
import com.tencent.cloud.polaris.config.spring.property.SpringValue;
|
||||
import com.tencent.cloud.polaris.config.spring.property.SpringValueDefinition;
|
||||
import com.tencent.cloud.polaris.config.spring.property.SpringValueDefinitionProcessor;
|
||||
import com.tencent.cloud.polaris.config.spring.property.SpringValueRegistry;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
import org.springframework.beans.BeanUtils;
|
||||
import org.springframework.beans.BeansException;
|
||||
import org.springframework.beans.factory.BeanFactory;
|
||||
import org.springframework.beans.factory.BeanFactoryAware;
|
||||
import org.springframework.beans.factory.annotation.Value;
|
||||
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
|
||||
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
|
||||
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
|
||||
import org.springframework.context.annotation.Bean;
|
||||
|
||||
/**
|
||||
*@author : wh
|
||||
*@date : 2022/7/10 14:15
|
||||
*@description:
|
||||
*/
|
||||
public class SpringValueProcessor extends PolarisProcessor implements BeanFactoryPostProcessor, BeanFactoryAware {
|
||||
|
||||
private static final Logger logger = LoggerFactory.getLogger(SpringValueProcessor.class);
|
||||
|
||||
private final PolarisConfigProperties polarisConfigProperties;
|
||||
private final PlaceholderHelper placeholderHelper;
|
||||
private final SpringValueRegistry springValueRegistry;
|
||||
|
||||
private BeanFactory beanFactory;
|
||||
private Multimap<String, SpringValueDefinition> beanName2SpringValueDefinitions;
|
||||
|
||||
public SpringValueProcessor(PlaceholderHelper placeholderHelper,
|
||||
SpringValueRegistry springValueRegistry,
|
||||
PolarisConfigProperties polarisConfigProperties) {
|
||||
this.placeholderHelper = placeholderHelper;
|
||||
this.polarisConfigProperties = polarisConfigProperties;
|
||||
this.springValueRegistry = springValueRegistry;
|
||||
beanName2SpringValueDefinitions = LinkedListMultimap.create();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
|
||||
throws BeansException {
|
||||
if (polarisConfigProperties.isAutoRefresh() && beanFactory instanceof BeanDefinitionRegistry) {
|
||||
beanName2SpringValueDefinitions = SpringValueDefinitionProcessor
|
||||
.getBeanName2SpringValueDefinitions((BeanDefinitionRegistry) beanFactory);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public Object postProcessBeforeInitialization(Object bean, String beanName)
|
||||
throws BeansException {
|
||||
if (polarisConfigProperties.isAutoRefresh()) {
|
||||
super.postProcessBeforeInitialization(bean, beanName);
|
||||
processBeanPropertyValues(bean, beanName);
|
||||
}
|
||||
return bean;
|
||||
}
|
||||
|
||||
|
||||
@Override
|
||||
protected void processField(Object bean, String beanName, Field field) {
|
||||
// register @Value on field
|
||||
Value value = field.getAnnotation(Value.class);
|
||||
if (value == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
doRegister(bean, beanName, field, value);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void processMethod(Object bean, String beanName, Method method) {
|
||||
//register @Value on method
|
||||
Value value = method.getAnnotation(Value.class);
|
||||
if (value == null) {
|
||||
return;
|
||||
}
|
||||
//skip Configuration bean methods
|
||||
if (method.getAnnotation(Bean.class) != null) {
|
||||
return;
|
||||
}
|
||||
if (method.getParameterTypes().length != 1) {
|
||||
logger.error("Ignore @Value setter {}.{}, expecting 1 parameter, actual {} parameters",
|
||||
bean.getClass().getName(), method.getName(), method.getParameterTypes().length);
|
||||
return;
|
||||
}
|
||||
|
||||
doRegister(bean, beanName, method, value);
|
||||
}
|
||||
|
||||
private void doRegister(Object bean, String beanName, Member member, Value value) {
|
||||
Set<String> keys = placeholderHelper.extractPlaceholderKeys(value.value());
|
||||
if (keys.isEmpty()) {
|
||||
return;
|
||||
}
|
||||
|
||||
for (String key : keys) {
|
||||
SpringValue springValue;
|
||||
if (member instanceof Field) {
|
||||
Field field = (Field) member;
|
||||
springValue = new SpringValue(key, value.value(), bean, beanName, field, false);
|
||||
}
|
||||
else if (member instanceof Method) {
|
||||
Method method = (Method) member;
|
||||
springValue = new SpringValue(key, value.value(), bean, beanName, method, false);
|
||||
}
|
||||
else {
|
||||
logger.error("Apollo @Value annotation currently only support to be used on methods and fields, "
|
||||
+ "but is used on {}", member.getClass());
|
||||
return;
|
||||
}
|
||||
springValueRegistry.register(beanFactory, key, springValue);
|
||||
logger.info("Monitoring {}", springValue);
|
||||
}
|
||||
}
|
||||
|
||||
private void processBeanPropertyValues(Object bean, String beanName) {
|
||||
Collection<SpringValueDefinition> propertySpringValues = beanName2SpringValueDefinitions
|
||||
.get(beanName);
|
||||
if (propertySpringValues == null || propertySpringValues.isEmpty()) {
|
||||
return;
|
||||
}
|
||||
|
||||
for (SpringValueDefinition definition : propertySpringValues) {
|
||||
try {
|
||||
PropertyDescriptor pd = BeanUtils
|
||||
.getPropertyDescriptor(bean.getClass(), definition.getPropertyName());
|
||||
Method method = pd.getWriteMethod();
|
||||
if (method == null) {
|
||||
continue;
|
||||
}
|
||||
SpringValue springValue = new SpringValue(definition.getKey(), definition.getPlaceholder(),
|
||||
bean, beanName, method, false);
|
||||
springValueRegistry.register(beanFactory, definition.getKey(), springValue);
|
||||
logger.debug("Monitoring {}", springValue);
|
||||
}
|
||||
catch (Throwable ex) {
|
||||
logger.error("Failed to enable auto update feature for {}.{}", bean.getClass(),
|
||||
definition.getPropertyName());
|
||||
}
|
||||
}
|
||||
|
||||
// clear
|
||||
beanName2SpringValueDefinitions.removeAll(beanName);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
|
||||
this.beanFactory = beanFactory;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,188 @@
|
||||
/*
|
||||
* 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.config.spring.property;
|
||||
|
||||
import java.util.Set;
|
||||
import java.util.Stack;
|
||||
|
||||
import com.google.common.base.Strings;
|
||||
import com.google.common.collect.Sets;
|
||||
|
||||
import org.springframework.beans.factory.config.BeanDefinition;
|
||||
import org.springframework.beans.factory.config.BeanExpressionContext;
|
||||
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
|
||||
import org.springframework.beans.factory.config.Scope;
|
||||
import org.springframework.util.StringUtils;
|
||||
|
||||
/**
|
||||
*@author : wh
|
||||
*@date : 2022/7/10 14:26
|
||||
*@description:
|
||||
*/
|
||||
public class PlaceholderHelper {
|
||||
|
||||
private static final String PLACEHOLDER_PREFIX = "${";
|
||||
private static final String PLACEHOLDER_SUFFIX = "}";
|
||||
private static final String VALUE_SEPARATOR = ":";
|
||||
private static final String SIMPLE_PLACEHOLDER_PREFIX = "{";
|
||||
private static final String EXPRESSION_PREFIX = "#{";
|
||||
private static final String EXPRESSION_SUFFIX = "}";
|
||||
|
||||
/**
|
||||
* Resolve placeholder property values, e.g.
|
||||
* <br />
|
||||
* <br />
|
||||
* "${somePropertyValue}" -> "the actual property value"
|
||||
*/
|
||||
public Object resolvePropertyValue(ConfigurableBeanFactory beanFactory, String beanName, String placeholder) {
|
||||
// resolve string value
|
||||
String strVal = beanFactory.resolveEmbeddedValue(placeholder);
|
||||
|
||||
BeanDefinition bd = (beanFactory.containsBean(beanName) ? beanFactory
|
||||
.getMergedBeanDefinition(beanName) : null);
|
||||
|
||||
// resolve expressions like "#{systemProperties.myProp}"
|
||||
return evaluateBeanDefinitionString(beanFactory, strVal, bd);
|
||||
}
|
||||
|
||||
private Object evaluateBeanDefinitionString(ConfigurableBeanFactory beanFactory, String value,
|
||||
BeanDefinition beanDefinition) {
|
||||
if (beanFactory.getBeanExpressionResolver() == null) {
|
||||
return value;
|
||||
}
|
||||
Scope scope = (beanDefinition != null ? beanFactory
|
||||
.getRegisteredScope(beanDefinition.getScope()) : null);
|
||||
return beanFactory.getBeanExpressionResolver()
|
||||
.evaluate(value, new BeanExpressionContext(beanFactory, scope));
|
||||
}
|
||||
|
||||
/**
|
||||
* Extract keys from placeholder, e.g.
|
||||
* <ul>
|
||||
* <li>${some.key} => "some.key"</li>
|
||||
* <li>${some.key:${some.other.key:100}} => "some.key", "some.other.key"</li>
|
||||
* <li>${${some.key}} => "some.key"</li>
|
||||
* <li>${${some.key:other.key}} => "some.key"</li>
|
||||
* <li>${${some.key}:${another.key}} => "some.key", "another.key"</li>
|
||||
* <li>#{new java.text.SimpleDateFormat('${some.key}').parse('${another.key}')} => "some.key", "another.key"</li>
|
||||
* </ul>
|
||||
*/
|
||||
public Set<String> extractPlaceholderKeys(String propertyString) {
|
||||
Set<String> placeholderKeys = Sets.newHashSet();
|
||||
|
||||
if (Strings.isNullOrEmpty(propertyString) || (!isNormalizedPlaceholder(propertyString) && !isExpressionWithPlaceholder(propertyString))) {
|
||||
return placeholderKeys;
|
||||
}
|
||||
|
||||
Stack<String> stack = new Stack<>();
|
||||
stack.push(propertyString);
|
||||
|
||||
while (!stack.isEmpty()) {
|
||||
String strVal = stack.pop();
|
||||
int startIndex = strVal.indexOf(PLACEHOLDER_PREFIX);
|
||||
if (startIndex == -1) {
|
||||
placeholderKeys.add(strVal);
|
||||
continue;
|
||||
}
|
||||
int endIndex = findPlaceholderEndIndex(strVal, startIndex);
|
||||
if (endIndex == -1) {
|
||||
// invalid placeholder?
|
||||
continue;
|
||||
}
|
||||
|
||||
String placeholderCandidate = strVal.substring(startIndex + PLACEHOLDER_PREFIX.length(), endIndex);
|
||||
|
||||
// ${some.key:other.key}
|
||||
if (placeholderCandidate.startsWith(PLACEHOLDER_PREFIX)) {
|
||||
stack.push(placeholderCandidate);
|
||||
}
|
||||
else {
|
||||
// some.key:${some.other.key:100}
|
||||
int separatorIndex = placeholderCandidate.indexOf(VALUE_SEPARATOR);
|
||||
|
||||
if (separatorIndex == -1) {
|
||||
stack.push(placeholderCandidate);
|
||||
}
|
||||
else {
|
||||
stack.push(placeholderCandidate.substring(0, separatorIndex));
|
||||
String defaultValuePart =
|
||||
normalizeToPlaceholder(placeholderCandidate.substring(separatorIndex + VALUE_SEPARATOR.length()));
|
||||
if (!Strings.isNullOrEmpty(defaultValuePart)) {
|
||||
stack.push(defaultValuePart);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// has remaining part, e.g. ${a}.${b}
|
||||
if (endIndex + PLACEHOLDER_SUFFIX.length() < strVal.length() - 1) {
|
||||
String remainingPart = normalizeToPlaceholder(strVal.substring(endIndex + PLACEHOLDER_SUFFIX.length()));
|
||||
if (!Strings.isNullOrEmpty(remainingPart)) {
|
||||
stack.push(remainingPart);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return placeholderKeys;
|
||||
}
|
||||
|
||||
private boolean isNormalizedPlaceholder(String propertyString) {
|
||||
return propertyString.startsWith(PLACEHOLDER_PREFIX) && propertyString.contains(PLACEHOLDER_SUFFIX);
|
||||
}
|
||||
|
||||
private boolean isExpressionWithPlaceholder(String propertyString) {
|
||||
return propertyString.startsWith(EXPRESSION_PREFIX) && propertyString.contains(EXPRESSION_SUFFIX)
|
||||
&& propertyString.contains(PLACEHOLDER_PREFIX) && propertyString.contains(PLACEHOLDER_SUFFIX);
|
||||
}
|
||||
|
||||
private String normalizeToPlaceholder(String strVal) {
|
||||
int startIndex = strVal.indexOf(PLACEHOLDER_PREFIX);
|
||||
if (startIndex == -1) {
|
||||
return null;
|
||||
}
|
||||
int endIndex = strVal.lastIndexOf(PLACEHOLDER_SUFFIX);
|
||||
if (endIndex == -1) {
|
||||
return null;
|
||||
}
|
||||
|
||||
return strVal.substring(startIndex, endIndex + PLACEHOLDER_SUFFIX.length());
|
||||
}
|
||||
|
||||
private int findPlaceholderEndIndex(CharSequence buf, int startIndex) {
|
||||
int index = startIndex + PLACEHOLDER_PREFIX.length();
|
||||
int withinNestedPlaceholder = 0;
|
||||
while (index < buf.length()) {
|
||||
if (StringUtils.substringMatch(buf, index, PLACEHOLDER_SUFFIX)) {
|
||||
if (withinNestedPlaceholder > 0) {
|
||||
withinNestedPlaceholder--;
|
||||
index = index + PLACEHOLDER_SUFFIX.length();
|
||||
}
|
||||
else {
|
||||
return index;
|
||||
}
|
||||
}
|
||||
else if (StringUtils.substringMatch(buf, index, SIMPLE_PLACEHOLDER_PREFIX)) {
|
||||
withinNestedPlaceholder++;
|
||||
index = index + SIMPLE_PLACEHOLDER_PREFIX.length();
|
||||
}
|
||||
else {
|
||||
index++;
|
||||
}
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,151 @@
|
||||
/*
|
||||
* 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.config.spring.property;
|
||||
|
||||
import java.lang.ref.WeakReference;
|
||||
import java.lang.reflect.Field;
|
||||
import java.lang.reflect.InvocationTargetException;
|
||||
import java.lang.reflect.Method;
|
||||
import java.lang.reflect.Type;
|
||||
|
||||
import org.springframework.core.MethodParameter;
|
||||
|
||||
/**
|
||||
*@author : wh
|
||||
*@date : 2022/7/10 14:23
|
||||
*@description:
|
||||
*/
|
||||
public class SpringValue {
|
||||
|
||||
private MethodParameter methodParameter;
|
||||
private Field field;
|
||||
private final WeakReference<Object> beanRef;
|
||||
private final String beanName;
|
||||
private final String key;
|
||||
private final String placeholder;
|
||||
private final Class<?> targetType;
|
||||
private Type genericType;
|
||||
private final boolean isJson;
|
||||
|
||||
public SpringValue(String key, String placeholder, Object bean, String beanName, Field field, boolean isJson) {
|
||||
this.beanRef = new WeakReference<>(bean);
|
||||
this.beanName = beanName;
|
||||
this.field = field;
|
||||
this.key = key;
|
||||
this.placeholder = placeholder;
|
||||
this.targetType = field.getType();
|
||||
this.isJson = isJson;
|
||||
if (isJson) {
|
||||
this.genericType = field.getGenericType();
|
||||
}
|
||||
}
|
||||
|
||||
public SpringValue(String key, String placeholder, Object bean, String beanName, Method method, boolean isJson) {
|
||||
this.beanRef = new WeakReference<>(bean);
|
||||
this.beanName = beanName;
|
||||
this.methodParameter = new MethodParameter(method, 0);
|
||||
this.key = key;
|
||||
this.placeholder = placeholder;
|
||||
Class<?>[] paramTps = method.getParameterTypes();
|
||||
this.targetType = paramTps[0];
|
||||
this.isJson = isJson;
|
||||
if (isJson) {
|
||||
this.genericType = method.getGenericParameterTypes()[0];
|
||||
}
|
||||
}
|
||||
|
||||
public void update(Object newVal) throws IllegalAccessException, InvocationTargetException {
|
||||
if (isField()) {
|
||||
injectField(newVal);
|
||||
}
|
||||
else {
|
||||
injectMethod(newVal);
|
||||
}
|
||||
}
|
||||
|
||||
private void injectField(Object newVal) throws IllegalAccessException {
|
||||
Object bean = beanRef.get();
|
||||
if (bean == null) {
|
||||
return;
|
||||
}
|
||||
boolean accessible = field.isAccessible();
|
||||
field.setAccessible(true);
|
||||
field.set(bean, newVal);
|
||||
field.setAccessible(accessible);
|
||||
}
|
||||
|
||||
private void injectMethod(Object newVal)
|
||||
throws InvocationTargetException, IllegalAccessException {
|
||||
Object bean = beanRef.get();
|
||||
if (bean == null) {
|
||||
return;
|
||||
}
|
||||
methodParameter.getMethod().invoke(bean, newVal);
|
||||
}
|
||||
|
||||
public String getBeanName() {
|
||||
return beanName;
|
||||
}
|
||||
|
||||
public Class<?> getTargetType() {
|
||||
return targetType;
|
||||
}
|
||||
|
||||
public String getPlaceholder() {
|
||||
return this.placeholder;
|
||||
}
|
||||
|
||||
public MethodParameter getMethodParameter() {
|
||||
return methodParameter;
|
||||
}
|
||||
|
||||
public boolean isField() {
|
||||
return this.field != null;
|
||||
}
|
||||
|
||||
public Field getField() {
|
||||
return field;
|
||||
}
|
||||
|
||||
public Type getGenericType() {
|
||||
return genericType;
|
||||
}
|
||||
|
||||
public boolean isJson() {
|
||||
return isJson;
|
||||
}
|
||||
|
||||
boolean isTargetBeanValid() {
|
||||
return beanRef.get() != null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
Object bean = beanRef.get();
|
||||
if (bean == null) {
|
||||
return "";
|
||||
}
|
||||
if (isField()) {
|
||||
return String
|
||||
.format("key: %s, beanName: %s, field: %s.%s", key, beanName, bean.getClass()
|
||||
.getName(), field.getName());
|
||||
}
|
||||
return String.format("key: %s, beanName: %s, method: %s.%s", key, beanName, bean.getClass().getName(),
|
||||
methodParameter.getMethod().getName());
|
||||
}
|
||||
}
|
||||
@ -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.config.spring.property;
|
||||
|
||||
/**
|
||||
*@author : wh
|
||||
*@date : 2022/7/10 14:24
|
||||
*@description:
|
||||
*/
|
||||
public class SpringValueDefinition {
|
||||
|
||||
private final String key;
|
||||
private final String placeholder;
|
||||
private final String propertyName;
|
||||
|
||||
public SpringValueDefinition(String key, String placeholder, String propertyName) {
|
||||
this.key = key;
|
||||
this.placeholder = placeholder;
|
||||
this.propertyName = propertyName;
|
||||
}
|
||||
|
||||
public String getKey() {
|
||||
return key;
|
||||
}
|
||||
|
||||
public String getPlaceholder() {
|
||||
return placeholder;
|
||||
}
|
||||
|
||||
public String getPropertyName() {
|
||||
return propertyName;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,114 @@
|
||||
/*
|
||||
* 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.config.spring.property;
|
||||
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
import java.util.Set;
|
||||
|
||||
import com.google.common.collect.LinkedListMultimap;
|
||||
import com.google.common.collect.Maps;
|
||||
import com.google.common.collect.Multimap;
|
||||
import com.google.common.collect.Sets;
|
||||
import com.tencent.cloud.polaris.config.config.PolarisConfigProperties;
|
||||
|
||||
import org.springframework.beans.BeansException;
|
||||
import org.springframework.beans.MutablePropertyValues;
|
||||
import org.springframework.beans.PropertyValue;
|
||||
import org.springframework.beans.factory.config.BeanDefinition;
|
||||
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
|
||||
import org.springframework.beans.factory.config.TypedStringValue;
|
||||
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
|
||||
import org.springframework.beans.factory.support.BeanDefinitionRegistryPostProcessor;
|
||||
|
||||
/**
|
||||
*@author : wh
|
||||
*@date : 2022/7/10 14:25
|
||||
*@description:
|
||||
*/
|
||||
public class SpringValueDefinitionProcessor implements BeanDefinitionRegistryPostProcessor {
|
||||
private static final Map<BeanDefinitionRegistry, Multimap<String, SpringValueDefinition>> beanName2SpringValueDefinitions =
|
||||
Maps.newConcurrentMap();
|
||||
private static final Set<BeanDefinitionRegistry> PROPERTY_VALUES_PROCESSED_BEAN_FACTORIES = Sets.newConcurrentHashSet();
|
||||
|
||||
private final PlaceholderHelper placeholderHelper;
|
||||
|
||||
private PolarisConfigProperties polarisConfigProperties;
|
||||
|
||||
public SpringValueDefinitionProcessor(PlaceholderHelper placeholderHelper, PolarisConfigProperties polarisConfigProperties) {
|
||||
this.polarisConfigProperties = polarisConfigProperties;
|
||||
this.placeholderHelper = placeholderHelper;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void postProcessBeanDefinitionRegistry(BeanDefinitionRegistry registry) throws BeansException {
|
||||
if (polarisConfigProperties.isAutoRefresh()) {
|
||||
processPropertyValues(registry);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
|
||||
|
||||
}
|
||||
|
||||
public static Multimap<String, SpringValueDefinition> getBeanName2SpringValueDefinitions(BeanDefinitionRegistry registry) {
|
||||
Multimap<String, SpringValueDefinition> springValueDefinitions = beanName2SpringValueDefinitions.get(registry);
|
||||
if (springValueDefinitions == null) {
|
||||
springValueDefinitions = LinkedListMultimap.create();
|
||||
}
|
||||
|
||||
return springValueDefinitions;
|
||||
}
|
||||
|
||||
private void processPropertyValues(BeanDefinitionRegistry beanRegistry) {
|
||||
if (!PROPERTY_VALUES_PROCESSED_BEAN_FACTORIES.add(beanRegistry)) {
|
||||
// already initialized
|
||||
return;
|
||||
}
|
||||
|
||||
if (!beanName2SpringValueDefinitions.containsKey(beanRegistry)) {
|
||||
beanName2SpringValueDefinitions.put(beanRegistry, LinkedListMultimap.create());
|
||||
}
|
||||
|
||||
Multimap<String, SpringValueDefinition> springValueDefinitions = beanName2SpringValueDefinitions.get(beanRegistry);
|
||||
|
||||
String[] beanNames = beanRegistry.getBeanDefinitionNames();
|
||||
for (String beanName : beanNames) {
|
||||
BeanDefinition beanDefinition = beanRegistry.getBeanDefinition(beanName);
|
||||
MutablePropertyValues mutablePropertyValues = beanDefinition.getPropertyValues();
|
||||
List<PropertyValue> propertyValues = mutablePropertyValues.getPropertyValueList();
|
||||
for (PropertyValue propertyValue : propertyValues) {
|
||||
Object value = propertyValue.getValue();
|
||||
if (!(value instanceof TypedStringValue)) {
|
||||
continue;
|
||||
}
|
||||
String placeholder = ((TypedStringValue) value).getValue();
|
||||
Set<String> keys = placeholderHelper.extractPlaceholderKeys(placeholder);
|
||||
|
||||
if (keys.isEmpty()) {
|
||||
continue;
|
||||
}
|
||||
|
||||
for (String key : keys) {
|
||||
springValueDefinitions.put(beanName, new SpringValueDefinition(key, placeholder, propertyValue.getName()));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,102 @@
|
||||
/*
|
||||
* 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.config.spring.property;
|
||||
|
||||
import java.util.Collection;
|
||||
import java.util.Iterator;
|
||||
import java.util.Map;
|
||||
import java.util.concurrent.Executors;
|
||||
import java.util.concurrent.TimeUnit;
|
||||
import java.util.concurrent.atomic.AtomicBoolean;
|
||||
|
||||
import com.google.common.collect.LinkedListMultimap;
|
||||
import com.google.common.collect.Maps;
|
||||
import com.google.common.collect.Multimap;
|
||||
import com.google.common.collect.Multimaps;
|
||||
import com.tencent.polaris.client.util.NamedThreadFactory;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
import org.springframework.beans.factory.BeanFactory;
|
||||
|
||||
/**
|
||||
*@author : wh
|
||||
*@date : 2022/7/10 14:29
|
||||
*@description:
|
||||
*/
|
||||
public class SpringValueRegistry {
|
||||
private static final Logger logger = LoggerFactory.getLogger(SpringValueRegistry.class);
|
||||
|
||||
private static final long CLEAN_INTERVAL_IN_SECONDS = 5;
|
||||
private final Map<BeanFactory, Multimap<String, SpringValue>> registry = Maps.newConcurrentMap();
|
||||
private final AtomicBoolean initialized = new AtomicBoolean(false);
|
||||
private final Object LOCK = new Object();
|
||||
|
||||
public void register(BeanFactory beanFactory, String key, SpringValue springValue) {
|
||||
if (!registry.containsKey(beanFactory)) {
|
||||
synchronized (LOCK) {
|
||||
if (!registry.containsKey(beanFactory)) {
|
||||
registry.put(beanFactory, Multimaps.synchronizedListMultimap(LinkedListMultimap.create()));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
registry.get(beanFactory).put(key, springValue);
|
||||
|
||||
// lazy initialize
|
||||
if (initialized.compareAndSet(false, true)) {
|
||||
initialize();
|
||||
}
|
||||
}
|
||||
|
||||
public Collection<SpringValue> get(BeanFactory beanFactory, String key) {
|
||||
Multimap<String, SpringValue> beanFactorySpringValues = registry.get(beanFactory);
|
||||
if (beanFactorySpringValues == null) {
|
||||
return null;
|
||||
}
|
||||
return beanFactorySpringValues.get(key);
|
||||
}
|
||||
|
||||
private void initialize() {
|
||||
Executors.newSingleThreadScheduledExecutor(
|
||||
new NamedThreadFactory("polaris-spring-value-registry")).scheduleAtFixedRate(
|
||||
() -> {
|
||||
try {
|
||||
scanAndClean();
|
||||
}
|
||||
catch (Throwable ex) {
|
||||
logger.error(ex.getMessage(), ex);
|
||||
}
|
||||
}, CLEAN_INTERVAL_IN_SECONDS, CLEAN_INTERVAL_IN_SECONDS, TimeUnit.SECONDS);
|
||||
}
|
||||
|
||||
private void scanAndClean() {
|
||||
Iterator<Multimap<String, SpringValue>> iterator = registry.values().iterator();
|
||||
while (!Thread.currentThread().isInterrupted() && iterator.hasNext()) {
|
||||
Multimap<String, SpringValue> springValues = iterator.next();
|
||||
Iterator<Map.Entry<String, SpringValue>> springValueIterator = springValues.entries().iterator();
|
||||
while (springValueIterator.hasNext()) {
|
||||
Map.Entry<String, SpringValue> springValue = springValueIterator.next();
|
||||
if (!springValue.getValue().isTargetBeanValid()) {
|
||||
// clear unused spring values
|
||||
springValueIterator.remove();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,19 @@
|
||||
package com.tencent.cloud.polaris.config.adapter;
|
||||
|
||||
/**
|
||||
*@author : wh
|
||||
*@date : 2022/7/10 14:50
|
||||
*@description:
|
||||
*/
|
||||
public class MockedConfigChange {
|
||||
|
||||
private String k1;
|
||||
|
||||
String getK1() {
|
||||
return k1;
|
||||
}
|
||||
|
||||
void setK1(String k1) {
|
||||
this.k1 = k1;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue