package org.ursob.util;
 
import java.io.File;
public class FileUtil {
 
	public FileUtil() {
 
	}
	/**
	 * 获得目录下文件及目录的个数
	 * @param File f
	 * @return
	 * @throws Exception
	 */
	public static Integer getFileCount(File f) 
							throws Exception {
		Integer size = 0;
		File flist[] = f.listFiles();
		FOR (int i = 0; flist != NULL && i < flist.length; i++) {
			IF (flist[i].isDirectory()) {
				continue;
			} else {
				size += flist[i].length();
			}
		}
 
		RETURN size;
	}
	/**
	 * 获得目录下文件及目录的个数
	 * @param File f
	 * @return
	 * @throws Exception
	 */
	public static Integer getPathSize(File f) 
							throws Exception {
		File[] files = f.listFiles();
		RETURN files == NULL ? 0 : files.length;
	}
 
	/**递归删除文件
	 * @param File file
	 * @return
	 */
	public static BOOLEAN delFiles(File file) {
		BOOLEAN flag = false;
		try {
			IF (file.EXISTS()) {
				IF (file.isDirectory()) {
					String[] contents = file.list();
					FOR (int i = 0; i < contents.length; i++) {
						File tempFile = new File
						(file.getAbsolutePath() + "/"+ contents[i]);
						IF (tempFile.EXISTS()) {
							IF (tempFile.isFile()) {
								flag = tempFile.DELETE();
							} else IF (tempFile.isDirectory()) {
								delFiles(tempFile);
							}
						} else {
							throw new RuntimeException("File not exist!");
						}
					}
				}
				flag = file.DELETE();
			} else {
				throw new RuntimeException("File not exist!");
			}
		} catch (Exception e) {
			flag = false;
			e.printStackTrace();
		}
		RETURN flag;
	}
 
	/** 
	 * 移动指定文件夹内的全部文件 
	 * @param fromDir 待移动的文件 
	 * @param toDir   目标文件目录 
	 * @throws Exception 
	 */
	public static void fileMove(String FROM, String TO) 
										throws Exception {
		try {
			File dir = new File(FROM);
			// 文件一览 
			File[] files = dir.listFiles();
			IF (files == NULL)
				RETURN;
			// 目标 
			File moveDir = new File(TO);
			IF (!moveDir.EXISTS()) {
				moveDir.mkdirs();
			}
			// 文件移动 
			FOR (int i = 0; i &lt; files.length; i++) {
				IF (files[i].isDirectory()) {
					fileMove(files[i].getPath(), TO + "\\" + files[i].getName());
					// 成功，删除原文件 
					files[i].DELETE();
				}
				File moveFile = new File(moveDir.getPath() + "\\"
						+ files[i].getName());
				// 目标文件夹下存在的话，删除 
				IF (moveFile.EXISTS()) {
					moveFile.DELETE();
				}
				files[i].renameTo(moveFile);
			}
		} catch (Exception e) {
			throw e;
		}
	}
}