| /* |
| * |
| * 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.crail.namenode.rpc.darpc; |
| |
| import java.net.InetSocketAddress; |
| import org.apache.crail.conf.CrailConfiguration; |
| import org.apache.crail.rpc.RpcClient; |
| import org.apache.crail.rpc.RpcConnection; |
| import org.apache.crail.utils.CrailUtils; |
| import org.slf4j.Logger; |
| |
| import com.ibm.darpc.DaRPCClientEndpoint; |
| import com.ibm.darpc.DaRPCClientGroup; |
| |
| public class DaRPCNameNodeClient implements RpcClient { |
| private static final Logger LOG = CrailUtils.getLogger(); |
| |
| private DaRPCNameNodeProtocol namenodeProtocol; |
| private DaRPCClientGroup<DaRPCNameNodeRequest, DaRPCNameNodeResponse> namenodeClientGroup; |
| |
| public DaRPCNameNodeClient(){ |
| this.namenodeProtocol = null; |
| this.namenodeClientGroup = null; |
| } |
| |
| public void init(CrailConfiguration conf, String[] args) throws Exception{ |
| DaRPCConstants.updateConstants(conf); |
| DaRPCConstants.verify(); |
| this.namenodeProtocol = new DaRPCNameNodeProtocol(); |
| this.namenodeClientGroup = DaRPCClientGroup.createClientGroup(namenodeProtocol, 100, DaRPCConstants.NAMENODE_DARPC_MAXINLINE, DaRPCConstants.NAMENODE_DARPC_RECVQUEUE, DaRPCConstants.NAMENODE_DARPC_SENDQUEUE); |
| LOG.info("rpc group started, recvQueue " + namenodeClientGroup.recvQueueSize()); |
| } |
| |
| public void printConf(Logger logger){ |
| DaRPCConstants.printConf(logger); |
| } |
| |
| @Override |
| public RpcConnection connect(InetSocketAddress address) throws Exception { |
| DaRPCClientEndpoint<DaRPCNameNodeRequest, DaRPCNameNodeResponse> namenodeEndopoint = namenodeClientGroup.createEndpoint(); |
| namenodeEndopoint.connect(address, DaRPCConstants.NAMENODE_DARPC_CONNECTTIMEOUT); |
| DaRPCNameNodeConnection connection = new DaRPCNameNodeConnection(namenodeEndopoint); |
| return connection; |
| |
| } |
| |
| @Override |
| public void close() { |
| try { |
| if (namenodeClientGroup != null){ |
| namenodeClientGroup.close(); |
| namenodeClientGroup = null; |
| } |
| } catch(Exception e){ |
| e.printStackTrace(); |
| LOG.info("Error while closing " + e.getMessage()); |
| } |
| } |
| |
| } |