Java File Write via ByteBuffer writeBytes(Path file, byte[] bytes)

Description

Writes bytes to a path

License

LGPL

Parameter

Parameter	Description
file	The file to write to
bytes	Bytes to write

Exception

Parameter	Description
IOException	an exception

Return

the number of bytes written, possibly zero.

Declaration

public static int writeBytes(Path file, byte[] bytes) throws IOException 

Method Source Code

//package com.java2s;
//License from project: LGPL 

import java.io.File;

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

import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.util.EnumSet;

public class Main {
    /**//ww  w  .j  av a 2  s .  c om
     * Writes bytes to a path
     * @param file The file to write to
     * @param bytes Bytes to write
     * @return the number of bytes written, possibly zero.
     * @throws IOException
     */
    public static int writeBytes(Path file, byte[] bytes) throws IOException {
        FileChannel channel = FileChannel.open(file, EnumSet.of(StandardOpenOption.CREATE,
                StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE));
        ByteBuffer buffer = ByteBuffer.wrap(bytes);

        channel.force(false);
        int bytesWritten = channel.write(buffer);
        channel.close();

        return bytesWritten;
    }

    @Deprecated
    public static void writeBytes(File file, byte[] bytes) throws IOException {
        File parent = file.getParentFile();
        if (parent != null && !parent.exists())
            parent.mkdirs();
        FileOutputStream out = new FileOutputStream(file);
        out.write(bytes);
        out.close();
    }

    public static void write(Path file, String content) throws IOException {
        writeBytes(file, utf8(content));
    }

    @Deprecated
    public static void write(File file, String content) throws IOException {
        writeBytes(file, utf8(content));
    }

    public static byte[] utf8(String string) {
        try {
            return string.getBytes("UTF-8");
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String utf8(byte[] bytes) {
        try {
            return new String(bytes, "UTF-8");
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}

Related

1. write(InputStream source, File target)
2. write(Path file, String content)
3. write(SeekableByteChannel channel, long start, byte[] bytes)
4. write24BitInteger(int integer, ByteOrder order)
5. writeByte(WritableByteChannel channel, byte value)
6. writeComment(File zipFile, String comment)
7. writeDataLengthsToHeader(FileOutputStream fpo)
8. writeDelimitedToOutputStream(byte[] bytes, OutputStream outputStream)
9. writeDouble(BufferedWriter bw, double[] buf)