package org.derrick.tool;

import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.Properties;

/**
 * 批量修改文件的擴展名

 * @author 劉冬寶Oct 26, 2006
   版權申明：所有人員均可自由修改源碼并再發布，但必須保留此相關信息
 *
 */
public class AlterFileExtName {

	private static class MyFileNameFilter implements FilenameFilter {
		private String extName = ".jad";

		public MyFileNameFilter(String extName) {
			super();
			this.extName = extName;
		}

		public MyFileNameFilter() {
			super();
		}

		public boolean accept(File dir, String name) {
			// System.out.println(dir);
			// System.out.println(name);
			if (name.indexOf(extName) > 0)
				return true;
			File testDir = new File(dir + File.separator + name);
			// System.out.println(testDir);
			return testDir.isDirectory();
		}

	}

	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws IOException {
		Properties files = new Properties();
		files.load(Thread.currentThread().getContextClassLoader()
				.getResourceAsStream("org/derrick/tool/files.config"));

		String srcDir = files.getProperty("srcDir");
		String srcExtName = files.getProperty("srcExtName");
		String destExtName = files.getProperty("destExtName");
		// AlterFileExtName app = new AlterFileExtName();
		File srcFile = new File(srcDir);

		process(srcFile, srcExtName, destExtName);
	}

	private static void process(File srcFile, String srcExtName,
			String destExtName) {
		File[] files = srcFile.listFiles(new MyFileNameFilter(srcExtName));
		for (int i = 0; i < files.length; i++) {
			System.out.println(files[i]);
			if (files[i].isFile()) {
				files[i].renameTo(new File(files[i].getAbsolutePath()
						.replaceAll(srcExtName, destExtName)));
			} else
				process(files[i], srcExtName, destExtName);
		}
	}
}