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71 lines
2.8 KiB
71 lines
2.8 KiB
/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://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 org.apache.dolphinscheduler.extract.base.client; |
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import org.apache.dolphinscheduler.extract.base.NettyRemotingClient; |
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import org.apache.dolphinscheduler.extract.base.utils.Host; |
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import java.lang.reflect.Proxy; |
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import java.time.Duration; |
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import java.util.Map; |
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import java.util.concurrent.ConcurrentHashMap; |
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import lombok.SneakyThrows; |
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import com.google.common.cache.CacheBuilder; |
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import com.google.common.cache.CacheLoader; |
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import com.google.common.cache.LoadingCache; |
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/** |
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* This class is used to create a proxy client which will transform local method invocation to remove invocation. |
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*/ |
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public class JdkDynamicRpcClientProxyFactory implements IRpcClientProxyFactory { |
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private final NettyRemotingClient nettyRemotingClient; |
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private static final LoadingCache<String, Map<String, Object>> proxyClientCache = CacheBuilder.newBuilder() |
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// expire here to remove dead host |
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.expireAfterAccess(Duration.ofHours(1)) |
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.build(new CacheLoader<String, Map<String, Object>>() { |
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@Override |
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public Map<String, Object> load(String key) { |
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return new ConcurrentHashMap<>(); |
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} |
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}); |
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public JdkDynamicRpcClientProxyFactory(NettyRemotingClient nettyRemotingClient) { |
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this.nettyRemotingClient = nettyRemotingClient; |
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} |
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@SneakyThrows |
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@SuppressWarnings("unchecked") |
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@Override |
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public <T> T getProxyClient(String serverHost, Class<T> clientInterface) { |
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return (T) proxyClientCache.get(serverHost) |
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.computeIfAbsent(clientInterface.getName(), key -> newProxyClient(serverHost, clientInterface)); |
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} |
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@SuppressWarnings("unchecked") |
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private <T> T newProxyClient(String serverHost, Class<T> clientInterface) { |
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return (T) Proxy.newProxyInstance( |
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clientInterface.getClassLoader(), |
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new Class[]{clientInterface}, |
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new ClientInvocationHandler(Host.of(serverHost), nettyRemotingClient)); |
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} |
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}
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