Java File Read via ByteBuffer read(File from)

Description

read

License

Apache License

Declaration

public static String read(File from) throws Exception 

Method Source Code

//package com.java2s;
/* /*w  w w  .  j  ava2 s .  c om*/
 * Copyright 2003,2004 Peter Lee, Colin Crist
 *
 * 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.File;
import java.io.FileInputStream;

import java.io.StringWriter;

import java.nio.ByteBuffer;

import java.nio.channels.FileChannel;

public class Main {
    public static String read(File from) throws Exception {

        final FileInputStream istream = new FileInputStream(from);
        final FileChannel channel = istream.getChannel();
        final StringWriter writer = new StringWriter();
        final ByteBuffer buffer = ByteBuffer.allocate(1024 * 1024);
        int read = 0;
        while ((read = channel.read(buffer)) > 0) {
            writer.append(new String(buffer.array(), 0, read));
        }

        return writer.getBuffer().toString();
    }
}

Related

1. openReadOnly(Path path, int offset, int length)
2. read(DataInput in, int length)
3. read(File file)
4. read(File file)
5. read(File file, long offset, int length)
6. read(final File source)
7. read(final FileChannel channel)
8. read(final Reader input, final char[] buffer, final int offset, final int length)
9. read(InputStream stream)