Merge branch 'master' of github.com:alibaba/spring-cloud-alibaba into rocketmq
zkzlx
4 years ago
commit
d17a38d495
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/*
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* Copyright 2013-2018 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.cloud.dubbo.registry;
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import java.util.Map;
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import java.util.Set;
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import org.apache.dubbo.common.URL;
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import org.apache.dubbo.registry.NotifyListener;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* For re subscribe URL from provider.
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*
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* @author <a href="mailto:chenxilzx1@gmail.com">theonefx</a>
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*/
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public class ReSubscribeMetadataJob implements Runnable {
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protected final Logger logger = LoggerFactory.getLogger(ReSubscribeMetadataJob.class);
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private final String serviceName;
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private final DubboCloudRegistry dubboCloudRegistry;
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private final int errorCounts;
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public ReSubscribeMetadataJob(String serviceName,
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DubboCloudRegistry dubboCloudRegistry, int errorCounts) {
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this.errorCounts = errorCounts;
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this.serviceName = serviceName;
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this.dubboCloudRegistry = dubboCloudRegistry;
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}
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public ReSubscribeMetadataJob(String serviceName,
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DubboCloudRegistry dubboCloudRegistry) {
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this(serviceName, dubboCloudRegistry, 0);
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}
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@Override
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public void run() {
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if (dubboCloudRegistry.getReConnectJobMap().get(serviceName) != this) {
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return;
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}
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try {
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logger.info("reSubscribe, serviceName = {}, count = {}", serviceName,
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errorCounts);
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for (Map.Entry<URL, NotifyListener> entry : dubboCloudRegistry
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.getUrlNotifyListenerMap().entrySet()) {
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doRun(entry.getKey(), entry.getValue());
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}
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dubboCloudRegistry.getReConnectJobMap().remove(serviceName);
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}
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catch (Exception e) {
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logger.warn(String.format(
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"reSubscribe failed, serviceName = %s, try refresh again",
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serviceName), e);
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dubboCloudRegistry.addReSubscribeMetadataJob(serviceName, errorCounts + 1);
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}
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}
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private void doRun(URL url, NotifyListener listener) {
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Set<String> serviceNames = dubboCloudRegistry.getServices(url);
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if (serviceNames.contains(serviceName)) {
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dubboCloudRegistry.subscribeURLs(url, serviceNames, listener);
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}
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}
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}
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@ -0,0 +1,35 @@
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/*
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* Copyright 2013-2018 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.cloud.dubbo.registry;
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import com.alibaba.cloud.dubbo.registry.event.ServiceInstancesChangedEvent;
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import org.springframework.context.ApplicationListener;
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import org.springframework.core.Ordered;
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/**
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* The interface of ServiceInstanceChange event Listener.
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*
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* @author <a href="mailto:chenxilzx1@gmail.com">theonefx</a>
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* @see ServiceInstancesChangedEvent
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* @see Ordered
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* @see ApplicationListener
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*/
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public interface ServiceInstanceChangeListener
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extends ApplicationListener<ServiceInstancesChangedEvent>, Ordered {
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}
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