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- /*
- * Copyright 2011 gitblit.com.
- *
- * 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 com.gitblit.utils;
-
- import java.io.BufferedReader;
- import java.io.BufferedWriter;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileOutputStream;
- import java.io.InputStreamReader;
- import java.io.OutputStreamWriter;
- import java.nio.charset.Charset;
-
- /**
- * Common file utilities.
- *
- * @author James Moger
- *
- */
- public class FileUtils {
-
- /**
- * Returns the string content of the specified file.
- *
- * @param file
- * @param lineEnding
- * @return the string content of the file
- */
- public static String readContent(File file, String lineEnding) {
- StringBuilder sb = new StringBuilder();
- try {
- InputStreamReader is = new InputStreamReader(new FileInputStream(file),
- Charset.forName("UTF-8"));
- BufferedReader reader = new BufferedReader(is);
- String line = null;
- while ((line = reader.readLine()) != null) {
- sb.append(line);
- if (lineEnding != null) {
- sb.append(lineEnding);
- }
- }
- reader.close();
- } catch (Throwable t) {
- System.err.println("Failed to read content of " + file.getAbsolutePath());
- t.printStackTrace();
- }
- return sb.toString();
- }
-
- /**
- * Writes the string content to the file.
- *
- * @param file
- * @param content
- */
- public static void writeContent(File file, String content) {
- try {
- OutputStreamWriter os = new OutputStreamWriter(new FileOutputStream(file),
- Charset.forName("UTF-8"));
- BufferedWriter writer = new BufferedWriter(os);
- writer.append(content);
- writer.close();
- } catch (Throwable t) {
- System.err.println("Failed to write content of " + file.getAbsolutePath());
- t.printStackTrace();
- }
- }
-
- /**
- * Recursively traverses a folder and its subfolders to calculate the total
- * size in bytes.
- *
- * @param directory
- * @return folder size in bytes
- */
- public static long folderSize(File directory) {
- if (directory == null || !directory.exists()) {
- return -1;
- }
- if (directory.isFile()) {
- return directory.length();
- }
- long length = 0;
- for (File file : directory.listFiles()) {
- if (file.isFile()) {
- length += file.length();
- } else {
- length += folderSize(file);
- }
- }
- return length;
- }
- }
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