IO.java

/**
 * 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
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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 edu.uci.ics.crawler4j.util;

import java.io.*;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

/**
 * @author Yasser Ganjisaffar <lastname at gmail dot com>
 */
public class IO {

	public static boolean deleteFolder(File folder) {
		return deleteFolderContents(folder) && folder.delete();
	}
	
	public static boolean deleteFolderContents(File folder) {
		System.out.println("Deleting content of: " + folder.getAbsolutePath());
		File[] files = folder.listFiles();
		for (File file : files) {
			if (file.isFile()) {
				if (!file.delete()) {
					return false;
				}
			} else {
				if (!deleteFolder(file)) {
					return false;
				}
			}
		}
		return true;
	}
	
	public static void writeBytesToFile(byte[] bytes, String destination) {
		try {
			FileChannel fc = new FileOutputStream(destination).getChannel();
			fc.write(ByteBuffer.wrap(bytes));
			fc.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}