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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 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.mahout.classifier.bayes.mapreduce.common;
import  org.apache.commons.cli2.CommandLine;
import  org.apache.commons.cli2.Group;
import  org.apache.commons.cli2.Option;
import  org.apache.commons.cli2.OptionException;
import  org.apache.commons.cli2.builder.ArgumentBuilder;
import  org.apache.commons.cli2.builder.DefaultOptionBuilder;
import  org.apache.commons.cli2.builder.GroupBuilder;
import  org.apache.commons.cli2.commandline.Parser;
public class JobExecutor {
Logger for this class.
  private static final Logger log = LoggerFactory.getLogger(BayesDriver.class);
  private JobExecutor() {

Execute a bayes classification job. Input and output path are parsed from the input parameters.

args input parameters.
job the job to execute.
Exception any exception thrown at job execution.
  public static void execute(final String[] argsfinal BayesJob job)
    DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
    ArgumentBuilder abuilder = new ArgumentBuilder();
    GroupBuilder gbuilder = new GroupBuilder();
    Option inputOpt = DefaultOptionCreator.inputOption(obuilderabuilder).create();
    Option outputOpt = DefaultOptionCreator.outputOption(obuilderabuilder).create();
    Option helpOpt = DefaultOptionCreator.helpOption(obuilder);
    Group group = gbuilder.withName("Options").withOption(inputOpt).withOption(outputOpt)
    try {
      Parser parser = new Parser();
      CommandLine cmdLine = parser.parse(args);
      if (cmdLine.hasOption(helpOpt)) {
      String input = cmdLine.getValue(inputOpt).toString();
      String output = cmdLine.getValue(outputOpt).toString();
      job.runJob(inputoutputnew BayesParameters(1));
    } catch (OptionException e) {
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