| /* |
| * 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.pig.backend.hadoop.executionengine.mapReduceLayer; |
| |
| import java.util.Arrays; |
| |
| import org.apache.hadoop.util.RunJar; |
| import org.apache.pig.backend.hadoop.executionengine.JobCreationException; |
| import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.MROpPlanVisitor; |
| import org.apache.pig.impl.plan.OperatorKey; |
| import org.apache.pig.impl.plan.VisitorException; |
| import org.apache.pig.tools.pigstats.PigStats; |
| import org.apache.pig.tools.pigstats.mapreduce.MRPigStatsUtil; |
| |
| public class NativeMapReduceOper extends MapReduceOper { |
| |
| private static final long serialVersionUID = 1L; |
| private static int countJobs = 0; |
| private String nativeMRJar; |
| private String[] params; |
| |
| public NativeMapReduceOper(OperatorKey k, String mrJar, String[] parameters) { |
| super(k); |
| nativeMRJar = mrJar; |
| params = parameters; |
| } |
| |
| public static int getJobNumber() { |
| countJobs++; |
| return countJobs; |
| } |
| |
| public String getJobId() { |
| return nativeMRJar + "_"; |
| } |
| |
| public String getCommandString() { |
| StringBuilder sb = new StringBuilder("hadoop jar "); |
| sb.append(nativeMRJar); |
| for(String pr: params) { |
| sb.append(" "); |
| sb.append(pr); |
| } |
| return sb.toString(); |
| } |
| |
| private String[] getNativeMRParams() { |
| // may need more cooking |
| String[] paramArr = new String[params.length + 1]; |
| paramArr[0] = nativeMRJar; |
| for(int i=0; i< params.length; i++) { |
| paramArr[i+1] = params[i]; |
| } |
| return paramArr; |
| } |
| |
| @Override |
| public void visit(MROpPlanVisitor v) throws VisitorException { |
| v.visitMROp(this); |
| } |
| |
| public void runJob() throws JobCreationException { |
| RunJarSecurityManager secMan = new RunJarSecurityManager(); |
| try { |
| RunJar.main(getNativeMRParams()); |
| MRPigStatsUtil.addNativeJobStats(PigStats.get(), this, true); |
| } catch (SecurityException se) { |
| if(secMan.getExitInvoked()) { |
| if(secMan.getExitCode() != 0) { |
| throw new JobCreationException("Native job returned with non-zero return code"); |
| } |
| else { |
| MRPigStatsUtil.addNativeJobStats(PigStats.get(), this, true); |
| } |
| } |
| } catch (Throwable t) { |
| JobCreationException e = new JobCreationException( |
| "Cannot run native mapreduce job "+ t.getMessage(), t); |
| MRPigStatsUtil.addNativeJobStats(PigStats.get(), this, false, e); |
| throw e; |
| } finally { |
| secMan.retire(); |
| } |
| } |
| |
| @Override |
| public String name(){ |
| return "MapReduce - " + mKey.toString() + "\n" |
| + " Native MapReduce - jar : " + nativeMRJar + ", params: " + Arrays.toString(params) ; |
| |
| |
| } |
| |
| } |