org.hdl.caffe.yarn.app.CaffeApplicationRpcClient.java Source code

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Here is the source code for org.hdl.caffe.yarn.app.CaffeApplicationRpcClient.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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.hdl.caffe.yarn.app;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.retry.RetryPolicy;
import org.apache.hadoop.io.retry.RetryProxy;
import org.hdl.caffe.yarn.app.api.CaffeCluster;
import org.hdl.caffe.yarn.app.api.protocolrecords.GetClusterSpecRequest;
import org.hdl.caffe.yarn.app.api.protocolrecords.GetClusterSpecResponse;
import org.apache.hadoop.yarn.client.RMProxy;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.factories.RecordFactory;
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;

import java.io.IOException;
import java.net.InetSocketAddress;

public class CaffeApplicationRpcClient implements CaffeApplicationRpc {
    private String serverAddress;
    private int serverPort;
    private RecordFactory recordFactory = RecordFactoryProvider.getRecordFactory(null);
    private CaffeCluster caffeCluster;

    public CaffeApplicationRpcClient(String serverAddress, int serverPort) {
        this.serverAddress = serverAddress;
        this.serverPort = serverPort;
    }

    public String getClusterSpec() throws IOException, YarnException {
        GetClusterSpecResponse response = this.caffeCluster
                .getClusterSpec(recordFactory.newRecordInstance(GetClusterSpecRequest.class));
        return response.getClusterSpec();
    }

    public CaffeApplicationRpc getRpc() {
        InetSocketAddress address = new InetSocketAddress(serverAddress, serverPort);
        Configuration conf = new Configuration();
        RetryPolicy retryPolicy = RMProxy.createRetryPolicy(conf, false);
        try {
            CaffeCluster proxy = RMProxy.createRMProxy(conf, CaffeCluster.class, address);
            this.caffeCluster = (CaffeCluster) RetryProxy.create(CaffeCluster.class, proxy, retryPolicy);
            return this;
        } catch (IOException e) {
            return null;
        }
    }
}