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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.jdk.core.text.tool;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import org.eclipse.osee.framework.jdk.core.util.Collections;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.framework.jdk.core.util.io.MatchFilter;
/**
* @author Ryan D. Brooks
*/
public class CompareLists {
public static void main(String[] args) throws IOException {
if (args.length != 4 && args.length != 2) {
System.out.println("Usage: java text.CompareLists <directory_1> <ext_1> <directory_2> <ext_2>");
System.out.println("or : java text.CompareLists <path1> <path2>");
return;
}
if (args.length == 4) {
writeDiff(Lib.readListFromDir(args[0], new MatchFilter(".*\\." + args[1])), Lib.readListFromDir(args[2],
new MatchFilter(".*\\." + args[3])), new File("list_diff.txt"),
"Directory \"" + args[0] + "\", files with extension \"" + args[1] + "\"",
"Directory \"" + args[2] + "\", files with extension \"" + args[3] + "\"");
} else {
writeDiff(Lib.readListFromFile(args[0]), Lib.readListFromFile(args[1]), new File("list_diff.txt"), args[0],
args[1]);
}
}
@SuppressWarnings("unchecked")
public static void writeDiff(Collection listA, Collection listB, File file, String listDescription1, String listDescription2) throws IOException {
BufferedWriter out = new BufferedWriter(new FileWriter(file));
//Enforce uniqueness
Set setA = Collections.toSet(listA);
Set setB = Collections.toSet(listB);
out.write("Items only in list A (" + listDescription1 + ")\n\n");
List complement = Collections.setComplement(setA, setB);
for (int i = 0; i < complement.size(); i++) {
out.write(complement.get(i) + "\n");
}
out.write("\nItems only in list B (" + listDescription2 + ")\n\n");
complement = Collections.setComplement(setB, setA);
for (int i = 0; i < complement.size(); i++) {
out.write(complement.get(i) + "\n");
}
//The intersection of two sets A and B is the set of elements common to A and B.
out.write("\nItems in both lists\n\n");
ArrayList intersection = Collections.setIntersection(setA, setB);
for (int i = 0; i < intersection.size(); i++) {
out.write(intersection.get(i) + "\n");
}
out.close();
System.out.println("Finished processing. Output is in file \"list_diff.txt\"");
}
}
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