package com.xxl.job.core.util;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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/**
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* file tool
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*
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* @author liyh
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*/
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public class FileUtil {
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private static Logger logger = LoggerFactory.getLogger(FileUtil.class);
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/**
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* delete recursively
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*
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* @param root
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* @return
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*/
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public static boolean deleteRecursively(File root) {
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if (root != null && root.exists()) {
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if (root.isDirectory()) {
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File[] children = root.listFiles();
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if (children != null) {
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for (File child : children) {
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deleteRecursively(child);
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}
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}
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}
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return root.delete();
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}
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return false;
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}
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public static void deleteFile(String fileName) {
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// file
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File file = new File(fileName);
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if (file.exists()) {
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file.delete();
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}
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}
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public static void writeFileContent(File file, byte[] data) {
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// file
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if (!file.exists()) {
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file.getParentFile().mkdirs();
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}
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// append file content
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FileOutputStream fos = null;
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try {
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fos = new FileOutputStream(file);
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fos.write(data);
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fos.flush();
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} catch (Exception e) {
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logger.error(e.getMessage(), e);
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} finally {
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if (fos != null) {
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try {
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fos.close();
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} catch (IOException e) {
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logger.error(e.getMessage(), e);
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}
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}
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}
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}
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public static byte[] readFileContent(File file) {
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Long filelength = file.length();
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byte[] filecontent = new byte[filelength.intValue()];
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FileInputStream in = null;
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try {
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in = new FileInputStream(file);
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in.read(filecontent);
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in.close();
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return filecontent;
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} catch (Exception e) {
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logger.error(e.getMessage(), e);
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return null;
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} finally {
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if (in != null) {
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try {
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in.close();
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} catch (IOException e) {
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logger.error(e.getMessage(), e);
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}
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}
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}
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}
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}
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