Java RandomAccessFile Read readAByte(ReadableByteChannel readChannel)

Description

read A Byte

License

Open Source License

Declaration

private static final byte readAByte(ReadableByteChannel readChannel)
            throws IOException 

Method Source Code

//package com.java2s;
/*//from   ww  w  . j a va  2  s . co  m
 *  Copyright (C) 2010 Shashank Tulsyan
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.ReadableByteChannel;

public class Main {
    private static final byte readAByte(ReadableByteChannel readChannel)
            throws IOException {
        byte[] tmp = new byte[1];
        if (readChannel == null) {
            throw new NullPointerException(
                    "Buffer exhausted and read channel is null, cannot continue");
        }
        int read = readChannel.read(ByteBuffer.wrap(tmp));
        if (read < 0) {
            throw new IOException(
                    "Channel abruptly ended while expecting more data.");
        }
        return tmp[0];
    }
}

Related

1. read_string(final RandomAccessFile raf)
2. read_structdesc(final RandomAccessFile raf)
3. read_tagdesc(RandomAccessFile raf)
4. read_typedesc(final RandomAccessFile raf)
5. read_UnsignedByte(RandomAccessFile raf)
6. readFile(File f)
7. readFile(File file)
8. readFile(File file)
9. readFile(final File file)