org.apache.hadoop.yarn.ipc.YarnRPC.java Source code

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Here is the source code for org.apache.hadoop.yarn.ipc.YarnRPC.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
*
*     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.hadoop.yarn.ipc;

import java.net.InetSocketAddress;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.ipc.Server;
import org.apache.hadoop.security.token.SecretManager;
import org.apache.hadoop.security.token.TokenIdentifier;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;

/**
 * Abstraction to get the RPC implementation for Yarn.
 */
@InterfaceAudience.LimitedPrivate({ "MapReduce", "YARN" })
public abstract class YarnRPC {
    private static final Log LOG = LogFactory.getLog(YarnRPC.class);

    public abstract Object getProxy(Class protocol, InetSocketAddress addr, Configuration conf);

    public abstract void stopProxy(Object proxy, Configuration conf);

    public abstract Server getServer(Class protocol, Object instance, InetSocketAddress addr, Configuration conf,
            SecretManager<? extends TokenIdentifier> secretManager, int numHandlers, String portRangeConfig);

    public Server getServer(Class protocol, Object instance, InetSocketAddress addr, Configuration conf,
            SecretManager<? extends TokenIdentifier> secretManager, int numHandlers) {
        return getServer(protocol, instance, addr, conf, secretManager, numHandlers, null);
    }

    public static YarnRPC create(Configuration conf) {
        LOG.debug("Creating YarnRPC for " + conf.get(YarnConfiguration.IPC_RPC_IMPL));
        String clazzName = conf.get(YarnConfiguration.IPC_RPC_IMPL);
        if (clazzName == null) {
            clazzName = YarnConfiguration.DEFAULT_IPC_RPC_IMPL;
        }
        try {
            return (YarnRPC) Class.forName(clazzName).newInstance();
        } catch (Exception e) {
            throw new YarnRuntimeException(e);
        }
    }

}