Java Text File Write nio writeContent(File file, String content)

Description

Writes the string content to the file.

License

Apache License

Parameter

Parameter	Description
file	a parameter
content	a parameter

Declaration

public static void writeContent(File file, String content) 

Method Source Code

//package com.java2s;
/*/*  w  w  w .jav a 2 s.c  o m*/
 * Copyright 2012 James Moger
 *
 * 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.
 */

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;

import java.io.OutputStreamWriter;
import java.nio.charset.Charset;

public class Main {
    /**
     * Writes the string content to the file.
     * 
     * @param file
     * @param content
     */
    public static void writeContent(File file, String content) {
        File tempFile = new File(file.getAbsolutePath() + "." + Long.toHexString(System.currentTimeMillis()));
        try {
            file.getAbsoluteFile().getParentFile().mkdirs();
            OutputStreamWriter os = new OutputStreamWriter(new FileOutputStream(tempFile),
                    Charset.forName("UTF-8"));
            BufferedWriter writer = new BufferedWriter(os);
            writer.append(content);
            writer.close();
            if (file.exists()) {
                if (!file.delete()) {
                    System.err.println("Failed to delete " + file);
                }
            }
            if (!tempFile.renameTo(file)) {
                System.err.println("Failed to rename temp file to " + file);
            }
        } catch (Throwable t) {
            System.err.println("Failed to write content of " + file);
            t.printStackTrace();
        }
    }

    /**
     * Writes the string content to the file.
     * 
     * @param file
     * @param content
     */
    public static void writeContent(File file, byte[] data) {
        File tempFile = new File(file.getAbsolutePath() + "." + Long.toHexString(System.currentTimeMillis()));
        try {
            file.getAbsoluteFile().getParentFile().mkdirs();
            FileOutputStream os = new FileOutputStream(tempFile);
            os.write(data);
            os.close();
            if (file.exists()) {
                file.delete();
            }
            tempFile.renameTo(file);
        } catch (IOException e) {
            throw new RuntimeException("Error writing to file " + file, e);
        }
    }

    /**
     * Delete a file or recursively delete a folder.
     * 
     * @param fileOrFolder
     * @return true, if successful
     */
    public static boolean delete(File fileOrFolder) {
        boolean success = false;
        if (fileOrFolder.isDirectory()) {
            File[] files = fileOrFolder.listFiles();
            if (files != null) {
                for (File file : files) {
                    if (file.isDirectory()) {
                        success |= delete(file);
                    } else {
                        success |= file.delete();
                    }
                }
            }
        }
        success |= fileOrFolder.delete();
        return success;
    }
}

Related

1. write(String msg)
2. writeAllLines(File file, List list)
3. writeAllText(File file, String contents)
4. writeArray2File(File file, Object[] objects, String code)
5. writeAscii(CharSequence ascii, OutputStream os)
6. writeContent(File file, String content)
7. writeData(String address, BigInteger toWrite)
8. writeDataFromList(String address, ArrayList toWrite)
9. writeFileContent(File file, String content)