/*******************************************************************************
 * Copyright (c) 2004 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.swt.tools.internal;

import java.io.*;
import java.util.*;

public abstract class CleanupClass extends JNIGenerator {

String classSourcePath;
String[] sourcePath;
String classSource;
Hashtable files;
int usedCount, unusedCount;

void loadClassSource() {
	if (classSourcePath == null) return;
	File f = new File(classSourcePath);
	classSource = loadFile(f);
}

void loadFiles () {
	// BAD - holds on to a lot of memory
	if (sourcePath == null) return;
	files = new Hashtable ();
	for (int i = 0; i < sourcePath.length; i++) {
		File file = new File(sourcePath[i]);
		if (file.exists()) {
			if (!file.isDirectory()) {
				if (file.getAbsolutePath().endsWith(".java")) {
					files.put(file, loadFile(file));
				}
			} else {
				loadDirectory(file);
			}		
		}
	}
}

String loadFile (File file) {
	try {
		FileReader fr = new FileReader(file);
		BufferedReader br = new BufferedReader(fr);
		StringBuffer str = new StringBuffer();
		char[] buffer = new char[1024];
		int read;
		while ((read = br.read(buffer)) != -1) {
			str.append(buffer, 0, read);
		}
		fr.close();
		return str.toString();
	} catch (IOException e) {
		e.printStackTrace(System.out);
	}
	return "";
}

void loadDirectory(File file) {
	String[] entries = file.list();
	for (int i = 0; i < entries.length; i++) {
		String entry = entries[i];
		File f = new File(file, entry);
		if (!f.isDirectory()) {
			if (f.getAbsolutePath().endsWith(".java")) {
				files.put(f, loadFile(f));
			}
		} else {
			loadDirectory(f);
		}					
	}
}

public void generate(Class clazz) {
	loadFiles ();
	loadClassSource();
}

public void setSourcePath(String[] sourcePath) {
	this.sourcePath = sourcePath;
	files = null;
}

public void setClassSourcePath(String classSourcePath) {
	this.classSourcePath = classSourcePath;
}

}