/
DubboBootstrap.java
1450 lines (1233 loc) · 53.1 KB
/
DubboBootstrap.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 org.apache.dubbo.config.bootstrap;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.config.ConfigurationUtils;
import org.apache.dubbo.common.config.Environment;
import org.apache.dubbo.common.config.configcenter.DynamicConfiguration;
import org.apache.dubbo.common.config.configcenter.DynamicConfigurationFactory;
import org.apache.dubbo.common.config.configcenter.wrapper.CompositeDynamicConfiguration;
import org.apache.dubbo.common.extension.ExtensionLoader;
import org.apache.dubbo.common.lang.ShutdownHookCallbacks;
import org.apache.dubbo.common.logger.Logger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.common.threadpool.concurrent.ScheduledCompletableFuture;
import org.apache.dubbo.common.threadpool.manager.ExecutorRepository;
import org.apache.dubbo.common.utils.ArrayUtils;
import org.apache.dubbo.common.utils.CollectionUtils;
import org.apache.dubbo.common.utils.StringUtils;
import org.apache.dubbo.config.ApplicationConfig;
import org.apache.dubbo.config.ConfigCenterConfig;
import org.apache.dubbo.config.ConsumerConfig;
import org.apache.dubbo.config.DubboShutdownHook;
import org.apache.dubbo.config.MetadataReportConfig;
import org.apache.dubbo.config.MetricsConfig;
import org.apache.dubbo.config.ModuleConfig;
import org.apache.dubbo.config.MonitorConfig;
import org.apache.dubbo.config.ProtocolConfig;
import org.apache.dubbo.config.ProviderConfig;
import org.apache.dubbo.config.ReferenceConfig;
import org.apache.dubbo.config.RegistryConfig;
import org.apache.dubbo.config.ServiceConfig;
import org.apache.dubbo.config.ServiceConfigBase;
import org.apache.dubbo.config.SslConfig;
import org.apache.dubbo.config.bootstrap.builders.ApplicationBuilder;
import org.apache.dubbo.config.bootstrap.builders.ConsumerBuilder;
import org.apache.dubbo.config.bootstrap.builders.ProtocolBuilder;
import org.apache.dubbo.config.bootstrap.builders.ProviderBuilder;
import org.apache.dubbo.config.bootstrap.builders.ReferenceBuilder;
import org.apache.dubbo.config.bootstrap.builders.RegistryBuilder;
import org.apache.dubbo.config.bootstrap.builders.ServiceBuilder;
import org.apache.dubbo.config.context.ConfigManager;
import org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter;
import org.apache.dubbo.config.utils.ConfigValidationUtils;
import org.apache.dubbo.config.utils.ReferenceConfigCache;
import org.apache.dubbo.metadata.MetadataService;
import org.apache.dubbo.metadata.MetadataServiceExporter;
import org.apache.dubbo.metadata.WritableMetadataService;
import org.apache.dubbo.metadata.report.MetadataReportFactory;
import org.apache.dubbo.metadata.report.MetadataReportInstance;
import org.apache.dubbo.metadata.report.support.AbstractMetadataReportFactory;
import org.apache.dubbo.registry.client.DefaultServiceInstance;
import org.apache.dubbo.registry.client.ServiceInstance;
import org.apache.dubbo.registry.client.ServiceInstanceCustomizer;
import org.apache.dubbo.registry.client.metadata.MetadataUtils;
import org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils;
import org.apache.dubbo.registry.client.metadata.store.InMemoryWritableMetadataService;
import org.apache.dubbo.registry.client.metadata.store.RemoteMetadataServiceImpl;
import org.apache.dubbo.registry.support.AbstractRegistryFactory;
import org.apache.dubbo.rpc.model.ApplicationModel;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.SortedSet;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.function.Consumer;
import java.util.function.Supplier;
import static java.lang.String.format;
import static java.util.Collections.singletonList;
import static java.util.concurrent.Executors.newSingleThreadExecutor;
import static org.apache.dubbo.common.config.ConfigurationUtils.parseProperties;
import static org.apache.dubbo.common.config.configcenter.DynamicConfiguration.getDynamicConfiguration;
import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_METADATA_STORAGE_TYPE;
import static org.apache.dubbo.common.constants.CommonConstants.REGISTRY_SPLIT_PATTERN;
import static org.apache.dubbo.common.constants.CommonConstants.REMOTE_METADATA_STORAGE_TYPE;
import static org.apache.dubbo.common.extension.ExtensionLoader.getExtensionLoader;
import static org.apache.dubbo.common.function.ThrowableAction.execute;
import static org.apache.dubbo.common.utils.StringUtils.isEmpty;
import static org.apache.dubbo.common.utils.StringUtils.isNotEmpty;
import static org.apache.dubbo.metadata.MetadataConstants.DEFAULT_METADATA_PUBLISH_DELAY;
import static org.apache.dubbo.metadata.MetadataConstants.METADATA_PUBLISH_DELAY_KEY;
import static org.apache.dubbo.metadata.WritableMetadataService.getDefaultExtension;
import static org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils.calInstanceRevision;
import static org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils.setMetadataStorageType;
import static org.apache.dubbo.registry.support.AbstractRegistryFactory.getServiceDiscoveries;
import static org.apache.dubbo.remoting.Constants.CLIENT_KEY;
/**
* See {@link ApplicationModel} and {@link ExtensionLoader} for why this class is designed to be singleton.
* <p>
* The bootstrap class of Dubbo
* <p>
* Get singleton instance by calling static method {@link #getInstance()}.
* Designed as singleton because some classes inside Dubbo, such as ExtensionLoader, are designed only for one instance per process.
*
* @since 2.7.5
*/
public class DubboBootstrap {
public static final String DEFAULT_REGISTRY_ID = "REGISTRY#DEFAULT";
public static final String DEFAULT_PROTOCOL_ID = "PROTOCOL#DEFAULT";
public static final String DEFAULT_SERVICE_ID = "SERVICE#DEFAULT";
public static final String DEFAULT_REFERENCE_ID = "REFERENCE#DEFAULT";
public static final String DEFAULT_PROVIDER_ID = "PROVIDER#DEFAULT";
public static final String DEFAULT_CONSUMER_ID = "CONSUMER#DEFAULT";
private static final String NAME = DubboBootstrap.class.getSimpleName();
private final Logger logger = LoggerFactory.getLogger(getClass());
private static volatile DubboBootstrap instance;
private final AtomicBoolean awaited = new AtomicBoolean(false);
private final Lock lock = new ReentrantLock();
private final Condition condition = lock.newCondition();
private final Lock destroyLock = new ReentrantLock();
private final ExecutorService executorService = newSingleThreadExecutor();
private final ExecutorRepository executorRepository = getExtensionLoader(ExecutorRepository.class).getDefaultExtension();
private final ConfigManager configManager;
private final Environment environment;
private ReferenceConfigCache cache;
private volatile boolean exportAsync;
private volatile boolean referAsync;
private AtomicBoolean initialized = new AtomicBoolean(false);
private AtomicBoolean started = new AtomicBoolean(false);
private AtomicBoolean ready = new AtomicBoolean(false);
private AtomicBoolean destroyed = new AtomicBoolean(false);
private volatile ServiceInstance serviceInstance;
private volatile MetadataService metadataService;
private volatile MetadataServiceExporter metadataServiceExporter;
private Map<String, ServiceConfigBase<?>> exportedServices = new ConcurrentHashMap<>();
private List<Future<?>> asyncExportingFutures = new ArrayList<>();
private List<CompletableFuture<Object>> asyncReferringFutures = new ArrayList<>();
/**
* See {@link ApplicationModel} and {@link ExtensionLoader} for why DubboBootstrap is designed to be singleton.
*/
public static DubboBootstrap getInstance() {
if (instance == null) {
synchronized (DubboBootstrap.class) {
if (instance == null) {
instance = new DubboBootstrap();
}
}
}
return instance;
}
private DubboBootstrap() {
configManager = ApplicationModel.getConfigManager();
environment = ApplicationModel.getEnvironment();
DubboShutdownHook.getDubboShutdownHook().register();
ShutdownHookCallbacks.INSTANCE.addCallback(DubboBootstrap.this::destroy);
}
public void unRegisterShutdownHook() {
DubboShutdownHook.getDubboShutdownHook().unregister();
}
private boolean isOnlyRegisterProvider() {
Boolean registerConsumer = getApplication().getRegisterConsumer();
return registerConsumer == null || !registerConsumer;
}
private String getMetadataType() {
String type = getApplication().getMetadataType();
if (StringUtils.isEmpty(type)) {
type = DEFAULT_METADATA_STORAGE_TYPE;
}
return type;
}
public DubboBootstrap metadataReport(MetadataReportConfig metadataReportConfig) {
configManager.addMetadataReport(metadataReportConfig);
return this;
}
public DubboBootstrap metadataReports(List<MetadataReportConfig> metadataReportConfigs) {
if (CollectionUtils.isEmpty(metadataReportConfigs)) {
return this;
}
configManager.addMetadataReports(metadataReportConfigs);
return this;
}
// {@link ApplicationConfig} correlative methods
/**
* Set the name of application
*
* @param name the name of application
* @return current {@link DubboBootstrap} instance
*/
public DubboBootstrap application(String name) {
return application(name, builder -> {
// DO NOTHING
});
}
/**
* Set the name of application and it's future build
*
* @param name the name of application
* @param consumerBuilder {@link ApplicationBuilder}
* @return current {@link DubboBootstrap} instance
*/
public DubboBootstrap application(String name, Consumer<ApplicationBuilder> consumerBuilder) {
ApplicationBuilder builder = createApplicationBuilder(name);
consumerBuilder.accept(builder);
return application(builder.build());
}
/**
* Set the {@link ApplicationConfig}
*
* @param applicationConfig the {@link ApplicationConfig}
* @return current {@link DubboBootstrap} instance
*/
public DubboBootstrap application(ApplicationConfig applicationConfig) {
configManager.setApplication(applicationConfig);
return this;
}
// {@link RegistryConfig} correlative methods
/**
* Add an instance of {@link RegistryConfig} with {@link #DEFAULT_REGISTRY_ID default ID}
*
* @param consumerBuilder the {@link Consumer} of {@link RegistryBuilder}
* @return current {@link DubboBootstrap} instance
*/
public DubboBootstrap registry(Consumer<RegistryBuilder> consumerBuilder) {
return registry(DEFAULT_REGISTRY_ID, consumerBuilder);
}
/**
* Add an instance of {@link RegistryConfig} with the specified ID
*
* @param id the {@link RegistryConfig#getId() id} of {@link RegistryConfig}
* @param consumerBuilder the {@link Consumer} of {@link RegistryBuilder}
* @return current {@link DubboBootstrap} instance
*/
public DubboBootstrap registry(String id, Consumer<RegistryBuilder> consumerBuilder) {
RegistryBuilder builder = createRegistryBuilder(id);
consumerBuilder.accept(builder);
return registry(builder.build());
}
/**
* Add an instance of {@link RegistryConfig}
*
* @param registryConfig an instance of {@link RegistryConfig}
* @return current {@link DubboBootstrap} instance
*/
public DubboBootstrap registry(RegistryConfig registryConfig) {
configManager.addRegistry(registryConfig);
return this;
}
/**
* Add an instance of {@link RegistryConfig}
*
* @param registryConfigs the multiple instances of {@link RegistryConfig}
* @return current {@link DubboBootstrap} instance
*/
public DubboBootstrap registries(List<RegistryConfig> registryConfigs) {
if (CollectionUtils.isEmpty(registryConfigs)) {
return this;
}
registryConfigs.forEach(this::registry);
return this;
}
// {@link ProtocolConfig} correlative methods
public DubboBootstrap protocol(Consumer<ProtocolBuilder> consumerBuilder) {
return protocol(DEFAULT_PROTOCOL_ID, consumerBuilder);
}
public DubboBootstrap protocol(String id, Consumer<ProtocolBuilder> consumerBuilder) {
ProtocolBuilder builder = createProtocolBuilder(id);
consumerBuilder.accept(builder);
return protocol(builder.build());
}
public DubboBootstrap protocol(ProtocolConfig protocolConfig) {
return protocols(singletonList(protocolConfig));
}
public DubboBootstrap protocols(List<ProtocolConfig> protocolConfigs) {
if (CollectionUtils.isEmpty(protocolConfigs)) {
return this;
}
configManager.addProtocols(protocolConfigs);
return this;
}
// {@link ServiceConfig} correlative methods
public <S> DubboBootstrap service(Consumer<ServiceBuilder<S>> consumerBuilder) {
return service(DEFAULT_SERVICE_ID, consumerBuilder);
}
public <S> DubboBootstrap service(String id, Consumer<ServiceBuilder<S>> consumerBuilder) {
ServiceBuilder builder = createServiceBuilder(id);
consumerBuilder.accept(builder);
return service(builder.build());
}
public DubboBootstrap service(ServiceConfig<?> serviceConfig) {
configManager.addService(serviceConfig);
return this;
}
public DubboBootstrap services(List<ServiceConfig> serviceConfigs) {
if (CollectionUtils.isEmpty(serviceConfigs)) {
return this;
}
serviceConfigs.forEach(configManager::addService);
return this;
}
// {@link Reference} correlative methods
public <S> DubboBootstrap reference(Consumer<ReferenceBuilder<S>> consumerBuilder) {
return reference(DEFAULT_REFERENCE_ID, consumerBuilder);
}
public <S> DubboBootstrap reference(String id, Consumer<ReferenceBuilder<S>> consumerBuilder) {
ReferenceBuilder builder = createReferenceBuilder(id);
consumerBuilder.accept(builder);
return reference(builder.build());
}
public DubboBootstrap reference(ReferenceConfig<?> referenceConfig) {
configManager.addReference(referenceConfig);
return this;
}
public DubboBootstrap references(List<ReferenceConfig> referenceConfigs) {
if (CollectionUtils.isEmpty(referenceConfigs)) {
return this;
}
referenceConfigs.forEach(configManager::addReference);
return this;
}
// {@link ProviderConfig} correlative methods
public DubboBootstrap provider(Consumer<ProviderBuilder> builderConsumer) {
return provider(DEFAULT_PROVIDER_ID, builderConsumer);
}
public DubboBootstrap provider(String id, Consumer<ProviderBuilder> builderConsumer) {
ProviderBuilder builder = createProviderBuilder(id);
builderConsumer.accept(builder);
return provider(builder.build());
}
public DubboBootstrap provider(ProviderConfig providerConfig) {
return providers(singletonList(providerConfig));
}
public DubboBootstrap providers(List<ProviderConfig> providerConfigs) {
if (CollectionUtils.isEmpty(providerConfigs)) {
return this;
}
providerConfigs.forEach(configManager::addProvider);
return this;
}
// {@link ConsumerConfig} correlative methods
public DubboBootstrap consumer(Consumer<ConsumerBuilder> builderConsumer) {
return consumer(DEFAULT_CONSUMER_ID, builderConsumer);
}
public DubboBootstrap consumer(String id, Consumer<ConsumerBuilder> builderConsumer) {
ConsumerBuilder builder = createConsumerBuilder(id);
builderConsumer.accept(builder);
return consumer(builder.build());
}
public DubboBootstrap consumer(ConsumerConfig consumerConfig) {
return consumers(singletonList(consumerConfig));
}
public DubboBootstrap consumers(List<ConsumerConfig> consumerConfigs) {
if (CollectionUtils.isEmpty(consumerConfigs)) {
return this;
}
consumerConfigs.forEach(configManager::addConsumer);
return this;
}
// {@link ConfigCenterConfig} correlative methods
public DubboBootstrap configCenter(ConfigCenterConfig configCenterConfig) {
return configCenters(singletonList(configCenterConfig));
}
public DubboBootstrap configCenters(List<ConfigCenterConfig> configCenterConfigs) {
if (CollectionUtils.isEmpty(configCenterConfigs)) {
return this;
}
configManager.addConfigCenters(configCenterConfigs);
return this;
}
public DubboBootstrap monitor(MonitorConfig monitor) {
configManager.setMonitor(monitor);
return this;
}
public DubboBootstrap metrics(MetricsConfig metrics) {
configManager.setMetrics(metrics);
return this;
}
public DubboBootstrap module(ModuleConfig module) {
configManager.setModule(module);
return this;
}
public DubboBootstrap ssl(SslConfig sslConfig) {
configManager.setSsl(sslConfig);
return this;
}
public DubboBootstrap cache(ReferenceConfigCache cache) {
this.cache = cache;
return this;
}
public ReferenceConfigCache getCache() {
if (cache == null) {
cache = ReferenceConfigCache.getCache();
}
return cache;
}
public DubboBootstrap exportAsync() {
this.exportAsync = true;
return this;
}
public DubboBootstrap referAsync() {
this.referAsync = true;
return this;
}
@Deprecated
public void init() {
initialize();
}
/**
* Initialize
*/
public void initialize() {
if (!initialized.compareAndSet(false, true)) {
return;
}
ApplicationModel.initFrameworkExts();
startConfigCenter();
loadRemoteConfigs();
checkGlobalConfigs();
// @since 2.7.8
startMetadataCenter();
initMetadataService();
if (logger.isInfoEnabled()) {
logger.info(NAME + " has been initialized!");
}
}
private void checkGlobalConfigs() {
// check Application
ConfigValidationUtils.validateApplicationConfig(getApplication());
// check Metadata
Collection<MetadataReportConfig> metadatas = configManager.getMetadataConfigs();
if (CollectionUtils.isEmpty(metadatas)) {
MetadataReportConfig metadataReportConfig = new MetadataReportConfig();
metadataReportConfig.refresh();
if (metadataReportConfig.isValid()) {
configManager.addMetadataReport(metadataReportConfig);
metadatas = configManager.getMetadataConfigs();
}
}
if (CollectionUtils.isNotEmpty(metadatas)) {
for (MetadataReportConfig metadataReportConfig : metadatas) {
metadataReportConfig.refresh();
ConfigValidationUtils.validateMetadataConfig(metadataReportConfig);
}
}
// check Provider
Collection<ProviderConfig> providers = configManager.getProviders();
if (CollectionUtils.isEmpty(providers)) {
configManager.getDefaultProvider().orElseGet(() -> {
ProviderConfig providerConfig = new ProviderConfig();
configManager.addProvider(providerConfig);
providerConfig.refresh();
return providerConfig;
});
}
for (ProviderConfig providerConfig : configManager.getProviders()) {
ConfigValidationUtils.validateProviderConfig(providerConfig);
}
// check Consumer
Collection<ConsumerConfig> consumers = configManager.getConsumers();
if (CollectionUtils.isEmpty(consumers)) {
configManager.getDefaultConsumer().orElseGet(() -> {
ConsumerConfig consumerConfig = new ConsumerConfig();
configManager.addConsumer(consumerConfig);
consumerConfig.refresh();
return consumerConfig;
});
}
for (ConsumerConfig consumerConfig : configManager.getConsumers()) {
ConfigValidationUtils.validateConsumerConfig(consumerConfig);
}
// check Monitor
ConfigValidationUtils.validateMonitorConfig(getMonitor());
// check Metrics
ConfigValidationUtils.validateMetricsConfig(getMetrics());
// check Module
ConfigValidationUtils.validateModuleConfig(getModule());
// check Ssl
ConfigValidationUtils.validateSslConfig(getSsl());
}
private void startConfigCenter() {
useRegistryAsConfigCenterIfNecessary();
Collection<ConfigCenterConfig> configCenters = configManager.getConfigCenters();
// check Config Center
if (CollectionUtils.isEmpty(configCenters)) {
ConfigCenterConfig configCenterConfig = new ConfigCenterConfig();
configCenterConfig.refresh();
if (configCenterConfig.isValid()) {
configManager.addConfigCenter(configCenterConfig);
configCenters = configManager.getConfigCenters();
}
} else {
for (ConfigCenterConfig configCenterConfig : configCenters) {
configCenterConfig.refresh();
ConfigValidationUtils.validateConfigCenterConfig(configCenterConfig);
}
}
if (CollectionUtils.isNotEmpty(configCenters)) {
CompositeDynamicConfiguration compositeDynamicConfiguration = new CompositeDynamicConfiguration();
for (ConfigCenterConfig configCenter : configCenters) {
compositeDynamicConfiguration.addConfiguration(prepareEnvironment(configCenter));
}
environment.setDynamicConfiguration(compositeDynamicConfiguration);
}
configManager.refreshAll();
}
private void startMetadataCenter() {
useRegistryAsMetadataCenterIfNecessary();
ApplicationConfig applicationConfig = getApplication();
String metadataType = applicationConfig.getMetadataType();
// FIXME, multiple metadata config support.
Collection<MetadataReportConfig> metadataReportConfigs = configManager.getMetadataConfigs();
if (CollectionUtils.isEmpty(metadataReportConfigs)) {
if (REMOTE_METADATA_STORAGE_TYPE.equals(metadataType)) {
throw new IllegalStateException("No MetadataConfig found, Metadata Center address is required when 'metadata=remote' is enabled.");
}
return;
}
for (MetadataReportConfig metadataReportConfig : metadataReportConfigs) {
ConfigValidationUtils.validateMetadataConfig(metadataReportConfig);
if (!metadataReportConfig.isValid()) {
continue;
}
MetadataReportInstance.init(metadataReportConfig);
}
}
/**
* For compatibility purpose, use registry as the default config center when
* there's no config center specified explicitly and
* useAsConfigCenter of registryConfig is null or true
*/
private void useRegistryAsConfigCenterIfNecessary() {
// we use the loading status of DynamicConfiguration to decide whether ConfigCenter has been initiated.
if (environment.getDynamicConfiguration().isPresent()) {
return;
}
if (CollectionUtils.isNotEmpty(configManager.getConfigCenters())) {
return;
}
configManager
.getDefaultRegistries()
.stream()
.filter(this::isUsedRegistryAsConfigCenter)
.map(this::registryAsConfigCenter)
.forEach(configManager::addConfigCenter);
}
private boolean isUsedRegistryAsConfigCenter(RegistryConfig registryConfig) {
return isUsedRegistryAsCenter(registryConfig, registryConfig::getUseAsConfigCenter, "config",
DynamicConfigurationFactory.class);
}
private ConfigCenterConfig registryAsConfigCenter(RegistryConfig registryConfig) {
String protocol = registryConfig.getProtocol();
Integer port = registryConfig.getPort();
String id = "config-center-" + protocol + "-" + port;
if (configManager.getConfigCenter(id) != null) {
return null;
}
ConfigCenterConfig cc = new ConfigCenterConfig();
cc.setId(id);
if (cc.getParameters() == null) {
cc.setParameters(new HashMap<>());
}
if (registryConfig.getParameters() != null) {
cc.getParameters().putAll(registryConfig.getParameters()); // copy the parameters
}
cc.getParameters().put(CLIENT_KEY, registryConfig.getClient());
cc.setProtocol(protocol);
cc.setPort(port);
if (StringUtils.isNotEmpty(registryConfig.getGroup())) {
cc.setGroup(registryConfig.getGroup());
}
cc.setAddress(getRegistryCompatibleAddress(registryConfig));
cc.setNamespace(registryConfig.getGroup());
cc.setUsername(registryConfig.getUsername());
cc.setPassword(registryConfig.getPassword());
if (registryConfig.getTimeout() != null) {
cc.setTimeout(registryConfig.getTimeout().longValue());
}
cc.setHighestPriority(false);
return cc;
}
private void useRegistryAsMetadataCenterIfNecessary() {
Collection<MetadataReportConfig> metadataConfigs = configManager.getMetadataConfigs();
if (CollectionUtils.isNotEmpty(metadataConfigs)) {
return;
}
configManager
.getDefaultRegistries()
.stream()
.filter(this::isUsedRegistryAsMetadataCenter)
.map(this::registryAsMetadataCenter)
.forEach(configManager::addMetadataReport);
}
private boolean isUsedRegistryAsMetadataCenter(RegistryConfig registryConfig) {
return isUsedRegistryAsCenter(registryConfig, registryConfig::getUseAsMetadataCenter, "metadata",
MetadataReportFactory.class);
}
/**
* Is used the specified registry as a center infrastructure
*
* @param registryConfig the {@link RegistryConfig}
* @param usedRegistryAsCenter the configured value on
* @param centerType the type name of center
* @param extensionClass an extension class of a center infrastructure
* @return
* @since 2.7.8
*/
private boolean isUsedRegistryAsCenter(RegistryConfig registryConfig, Supplier<Boolean> usedRegistryAsCenter,
String centerType,
Class<?> extensionClass) {
final boolean supported;
Boolean configuredValue = usedRegistryAsCenter.get();
if (configuredValue != null) { // If configured, take its value.
supported = configuredValue.booleanValue();
} else { // Or check the extension existence
String protocol = registryConfig.getProtocol();
supported = supportsExtension(extensionClass, protocol);
if (logger.isInfoEnabled()) {
logger.info(format("No value is configured in the registry, the %s extension[name : %s] %s as the %s center"
, extensionClass.getSimpleName(), protocol, supported ? "supports" : "does not support", centerType));
}
}
if (logger.isInfoEnabled()) {
logger.info(format("The registry[%s] will be %s as the %s center", registryConfig,
supported ? "used" : "not used", centerType));
}
return supported;
}
/**
* Supports the extension with the specified class and name
*
* @param extensionClass the {@link Class} of extension
* @param name the name of extension
* @return if supports, return <code>true</code>, or <code>false</code>
* @since 2.7.8
*/
private boolean supportsExtension(Class<?> extensionClass, String name) {
if (isNotEmpty(name)) {
ExtensionLoader extensionLoader = getExtensionLoader(extensionClass);
return extensionLoader.hasExtension(name);
}
return false;
}
private MetadataReportConfig registryAsMetadataCenter(RegistryConfig registryConfig) {
String protocol = registryConfig.getProtocol();
Integer port = registryConfig.getPort();
String id = "metadata-center-" + protocol + "-" + port;
if (configManager.getMetadataConfig(id) != null) {
return null;
}
MetadataReportConfig metadataReportConfig = new MetadataReportConfig();
metadataReportConfig.setId(id);
if (metadataReportConfig.getParameters() == null) {
metadataReportConfig.setParameters(new HashMap<>());
}
if (registryConfig.getParameters() != null) {
metadataReportConfig.getParameters().putAll(registryConfig.getParameters()); // copy the parameters
}
metadataReportConfig.getParameters().put(CLIENT_KEY, registryConfig.getClient());
metadataReportConfig.setGroup(registryConfig.getGroup());
metadataReportConfig.setAddress(getRegistryCompatibleAddress(registryConfig));
metadataReportConfig.setUsername(registryConfig.getUsername());
metadataReportConfig.setPassword(registryConfig.getPassword());
metadataReportConfig.setTimeout(registryConfig.getTimeout());
return metadataReportConfig;
}
private String getRegistryCompatibleAddress(RegistryConfig registryConfig) {
String registryAddress = registryConfig.getAddress();
String[] addresses = REGISTRY_SPLIT_PATTERN.split(registryAddress);
if (ArrayUtils.isEmpty(addresses)) {
throw new IllegalStateException("Invalid registry address found.");
}
String address = addresses[0];
// since 2.7.8
// Issue : https://github.com/apache/dubbo/issues/6476
StringBuilder metadataAddressBuilder = new StringBuilder();
URL url = URL.valueOf(address);
String protocolFromAddress = url.getProtocol();
if (isEmpty(protocolFromAddress)) {
// If the protocol from address is missing, is like :
// "dubbo.registry.address = 127.0.0.1:2181"
String protocolFromConfig = registryConfig.getProtocol();
metadataAddressBuilder.append(protocolFromConfig).append("://");
}
metadataAddressBuilder.append(address);
return metadataAddressBuilder.toString();
}
private void loadRemoteConfigs() {
// registry ids to registry configs
List<RegistryConfig> tmpRegistries = new ArrayList<>();
Set<String> registryIds = configManager.getRegistryIds();
registryIds.forEach(id -> {
if (tmpRegistries.stream().noneMatch(reg -> reg.getId().equals(id))) {
tmpRegistries.add(configManager.getRegistry(id).orElseGet(() -> {
RegistryConfig registryConfig = new RegistryConfig();
registryConfig.setId(id);
registryConfig.refresh();
return registryConfig;
}));
}
});
configManager.addRegistries(tmpRegistries);
// protocol ids to protocol configs
List<ProtocolConfig> tmpProtocols = new ArrayList<>();
Set<String> protocolIds = configManager.getProtocolIds();
protocolIds.forEach(id -> {
if (tmpProtocols.stream().noneMatch(prot -> prot.getId().equals(id))) {
tmpProtocols.add(configManager.getProtocol(id).orElseGet(() -> {
ProtocolConfig protocolConfig = new ProtocolConfig();
protocolConfig.setId(id);
protocolConfig.refresh();
return protocolConfig;
}));
}
});
configManager.addProtocols(tmpProtocols);
}
/**
* Initialize {@link MetadataService} from {@link WritableMetadataService}'s extension
*/
private void initMetadataService() {
this.metadataService = getDefaultExtension();
this.metadataServiceExporter = new ConfigurableMetadataServiceExporter(metadataService);
}
/**
* Start the bootstrap
*/
public DubboBootstrap start() {
if (started.compareAndSet(false, true)) {
destroyed.set(false);
ready.set(false);
initialize();
if (logger.isInfoEnabled()) {
logger.info(NAME + " is starting...");
}
// 1. export Dubbo Services
exportServices();
// Not only provider register
if (!isOnlyRegisterProvider() || hasExportedServices()) {
// 2. export MetadataService
exportMetadataService();
//3. Register the local ServiceInstance if required
registerServiceInstance();
}
referServices();
if (asyncExportingFutures.size() > 0) {
new Thread(() -> {
try {
this.awaitFinish();
} catch (Exception e) {
logger.warn(NAME + " exportAsync occurred an exception.");
}
ready.set(true);
if (logger.isInfoEnabled()) {
logger.info(NAME + " is ready.");
}
ExtensionLoader<DubboBootstrapStartStopListener> exts = getExtensionLoader(DubboBootstrapStartStopListener.class);
exts.getSupportedExtensionInstances().forEach(ext -> ext.onStart(this));
}).start();
} else {
ready.set(true);
if (logger.isInfoEnabled()) {
logger.info(NAME + " is ready.");
}
ExtensionLoader<DubboBootstrapStartStopListener> exts = getExtensionLoader(DubboBootstrapStartStopListener.class);
exts.getSupportedExtensionInstances().forEach(ext -> ext.onStart(this));
}
if (logger.isInfoEnabled()) {
logger.info(NAME + " has started.");
}
}
return this;
}
private boolean hasExportedServices() {
return !metadataService.getExportedURLs().isEmpty();
}
/**
* Block current thread to be await.
*
* @return {@link DubboBootstrap}
*/
public DubboBootstrap await() {
// if has been waited, no need to wait again, return immediately
if (!awaited.get()) {
if (!executorService.isShutdown()) {
executeMutually(() -> {
while (!awaited.get()) {
if (logger.isInfoEnabled()) {
logger.info(NAME + " awaiting ...");
}
try {
condition.await();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
});
}
}
return this;
}
public DubboBootstrap awaitFinish() throws Exception {
logger.info(NAME + " waiting services exporting / referring ...");
if (exportAsync && asyncExportingFutures.size() > 0) {
CompletableFuture future = CompletableFuture.allOf(asyncExportingFutures.toArray(new CompletableFuture[0]));
future.get();
}
if (referAsync && asyncReferringFutures.size() > 0) {
CompletableFuture future = CompletableFuture.allOf(asyncReferringFutures.toArray(new CompletableFuture[0]));
future.get();
}
logger.info("Service export / refer finished.");
return this;
}
public boolean isInitialized() {
return initialized.get();
}
public boolean isStarted() {
return started.get();
}
public boolean isReady() {
return ready.get();
}
public DubboBootstrap stop() throws IllegalStateException {
destroy();
return this;
}
/* serve for builder apis, begin */
private ApplicationBuilder createApplicationBuilder(String name) {
return new ApplicationBuilder().name(name);
}
private RegistryBuilder createRegistryBuilder(String id) {
return new RegistryBuilder().id(id);
}
private ProtocolBuilder createProtocolBuilder(String id) {
return new ProtocolBuilder().id(id);
}