org.hdl.tensorflow.yarn.rpc.impl.TFApplicationRpcClient.java Source code

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Here is the source code for org.hdl.tensorflow.yarn.rpc.impl.TFApplicationRpcClient.java

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/*
 * Licensed 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.hdl.tensorflow.yarn.rpc.impl;

import org.hdl.tensorflow.yarn.rpc.GetClusterSpecRequest;
import org.hdl.tensorflow.yarn.rpc.GetClusterSpecResponse;
import org.hdl.tensorflow.yarn.rpc.TFApplicationRpc;
import org.hdl.tensorflow.yarn.rpc.TensorFlowCluster;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.retry.RetryPolicy;
import org.apache.hadoop.io.retry.RetryProxy;
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 TFApplicationRpcClient implements TFApplicationRpc {
    private RecordFactory recordFactory = RecordFactoryProvider.getRecordFactory(null);
    private TensorFlowCluster tensorflow;
    private static TFApplicationRpcClient instance = null;

    public static TFApplicationRpcClient getInstance(String serverAddress, int serverPort) throws IOException {
        if (null == instance) {
            instance = new TFApplicationRpcClient(serverAddress, serverPort);
        }
        return instance;
    }

    private TFApplicationRpcClient(String serverAddress, int serverPort) throws IOException {
        InetSocketAddress address = new InetSocketAddress(serverAddress, serverPort);
        Configuration conf = new Configuration();
        RetryPolicy retryPolicy = RMProxy.createRetryPolicy(conf, false);
        TensorFlowCluster proxy = RMProxy.createRMProxy(conf, TensorFlowCluster.class, address);
        this.tensorflow = (TensorFlowCluster) RetryProxy.create(TensorFlowCluster.class, proxy, retryPolicy);
    }

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