/**
* 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.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.YarnException;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
/**
* Abstraction to get the RPC implementation for 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);
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 YarnException(e);
}
}
}