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package com.sun.enterprise.tools.classmodel;

import java.io.File;
import java.util.logging.Level;
import java.util.logging.Logger;

import com.sun.enterprise.tools.InhabitantsDescriptor;

/**
 * Provides ability to sort an inhabitants file.
 * 
 * @author Jeff Trent
 * @since 3.1
 */
public class InhabitantsSorter extends Constants {

  private static Logger logger = Logger.getLogger(InhabitantsSorter.class.getName());
  
  protected InhabitantsSorter() {}

  /**
   * Requires {@link Constants#PARAM_INHABITANT_SOURCE_FILE} and
   * {@link Constants#PARAM_INHABITANT_TARGET_FILE} to be passed.
   * 
   * @param args not used
   * @throws Exception
   */
  public static void main(String[] args) throws Exception {
    File sourceInhabitantFile = InhabitantsGenerator.getInhabitantFile(PARAM_INHABITANT_SOURCE_FILE, false);
    if (!sourceInhabitantFile.exists()) {
      logger.log(Level.INFO, "Nothing to do.");
      return;
    }
    File targetInhabitantFile = InhabitantsGenerator.getInhabitantFile(PARAM_INHABITANT_TARGET_FILE, false);
    
    InhabitantsDescriptor inDescriptor = new InhabitantsDescriptor();
    logger.log(Level.FINE, "source file is {0}", sourceInhabitantFile);
    inDescriptor.load(sourceInhabitantFile);

    InhabitantsDescriptor outDescriptor = new InhabitantsDescriptor();
    outDescriptor.enableDateOutput(false);
    
    InhabitantsFilter.process(inDescriptor, outDescriptor, null);
    InhabitantsFilter.writeInhabitantsFile(targetInhabitantFile, outDescriptor, true);
  }

}