FileHelper.java

/*
 * Copyright 2014 The Sculptor Project Team, including the original 
 * author or authors.
 * 
 * Licensed 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 org.sculptor.generator.util;

import java.io.File;
import java.io.IOException;

public final class FileHelper {

	/**
	 * Accommodate Windows bug: If the delete does not work, call
	 * <code>System.gc()</code>, wait a little and try again.
	 */
	public static boolean deleteFile(File file) throws IOException {
		if (file.isDirectory()) {
			throw new IOException("File " + file + " isn't a file.");
		}
		if (!file.delete()) {
			if (System.getProperty("os.name").equalsIgnoreCase("windows")) {
				file = file.getCanonicalFile();
				System.gc();
			}
			try {
				Thread.sleep(10);
				return file.delete();
			} catch (InterruptedException ex) {
				return file.delete();
			}
		}
		return true;
	}

}