dubbo AbstractServiceDiscoveryFactory 源码
dubbo AbstractServiceDiscoveryFactory 代码
文件路径：/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/AbstractServiceDiscoveryFactory.java
/*
* 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.registry.client;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.rpc.model.ApplicationModel;
import org.apache.dubbo.rpc.model.ScopeModelAware;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
/**
* Abstract {@link ServiceDiscoveryFactory} implementation with cache, the subclass
* should implement {@link #createDiscovery(URL)} method to create an instance of {@link ServiceDiscovery}
*
* @see ServiceDiscoveryFactory
* @since 2.7.5
*/
public abstract class AbstractServiceDiscoveryFactory implements ServiceDiscoveryFactory, ScopeModelAware {
protected ApplicationModel applicationModel;
private final ConcurrentMap<String, ServiceDiscovery> discoveries = new ConcurrentHashMap<>();
@Override
public void setApplicationModel(ApplicationModel applicationModel) {
this.applicationModel = applicationModel;
}
public List<ServiceDiscovery> getAllServiceDiscoveries() {
return Collections.unmodifiableList(new LinkedList<>(discoveries.values()));
}
@Override
public ServiceDiscovery getServiceDiscovery(URL registryURL) {
String key = registryURL.toServiceStringWithoutResolving();
return discoveries.computeIfAbsent(key, k -> createDiscovery(registryURL));
}
protected abstract ServiceDiscovery createDiscovery(URL registryURL);
}
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