/*******************************************************************************
 * Copyright (c) 2009 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.releng;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;

public class GenerateExcludeListTask extends Task {

	private ArrayList a = new ArrayList();
	private String mapFile;
	private String outputFile;

	public GenerateExcludeListTask() {
		super();
	}

	public static void main(String[] args) {
		GenerateExcludeListTask parser = new GenerateExcludeListTask();
		parser.setMapFile("c:\\temp\\orbit.map");
		parser.setOutputFile("c:\\temp\\orbit.map.new");
		parser.execute();
	}

	public String getOutputFile() {
		return outputFile;
	}

	public void setOutputFile(String outputFile) {
		this.outputFile = outputFile;
	}

	public String getMapFile() {
		return mapFile;
	}

	public void setMapFile(String mapFile) {
		this.mapFile = mapFile;
	}

	public void execute() throws BuildException {
		readMap();
		writeProp();
	}

	// for old map file format //

	/* private void readMap() {
		try {
			BufferedReader r = new BufferedReader(new FileReader(mapFile));
			String line;
			while ((line = r.readLine()) != null) {
				int start = line.lastIndexOf('/');
				int lastcomma = line.lastIndexOf(',');
				int end = line.length();
				if (lastcomma > start) {
					end = lastcomma;
				}
				int lastzip = line.lastIndexOf(".zip");
				if (lastzip > start) {
					String rstring = line.substring(0, lastzip);
					line = rstring + ".jar";
				}
				if ((start < end) && (start > 0)) {
					String substr = line.substring(start + 1, end);
					a.add(substr);
				}
			}
			r.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	} */

	private void readMap() {
		try {
			BufferedReader r = new BufferedReader(new FileReader(mapFile));
			String line;
			while ((line = r.readLine()) != null) {
				int start = line.indexOf("plugin@") + 7;
				int end = line.indexOf(",");
				String plugin = "";		
				if ((start > 0) && (end > 0)) {				
					plugin = line.substring(start, end);
				}				
				String version = "";
				int startv = line.indexOf("version=") + 8;
				int endv = line.indexOf(",", startv);
				if ((startv > 0) && (endv > 0)) {
					version = line.substring(startv, endv);
				}
				if ((version != "") && (plugin != "")) {
				String l = plugin + "_" + version + ".jar";				
				a.add(l);			
				}						
			}
			r.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private void writeProp() {

		try {
			BufferedWriter out = new BufferedWriter(new FileWriter(outputFile));
			for (Iterator iterator = a.iterator(); iterator.hasNext();) {
				String s = iterator.next().toString();
				if (iterator.hasNext()) {
					out.write("plugins/" + s + ",");
				} else {
					out.write("plugins/" + s);
				}
			}
			out.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}