EndianDataOutputStream.java

package jeql.io;

import java.io.DataOutputStream;
import java.io.IOException;


/**
 *  A class that gives most of the functionality of DataOutputStream, but is endian aware.
 *  Uses a real java.io.DataOutputStream to actually do the writing.
 */
public class EndianDataOutputStream {
    private java.io.DataOutputStream outputStream;

    /** Creates new EndianDataOutputStream */
    public EndianDataOutputStream(java.io.OutputStream out) {
        outputStream = new DataOutputStream(out);
    }

    /** close stream**/
    public void close() throws IOException {
        outputStream.close();
    }

    /** write bytes */
    public void write(byte[] b, int off, int len) throws IOException {
        outputStream.write(b, off, len);
    }

    /** flush stream**/
    public void flush() throws IOException {
        outputStream.flush();
    }

    /** write a byte in LittleEndian  - this is exactly the same as the BigEndian version since there's no endian in a single byte */
    public void writeByteLE(int b) throws IOException {
        outputStream.writeByte(b);
    }

    /** write a byte in BigEndian  - this is exactly the same as the LittleEndian version since there's no endian in a single byte */
    public void writeByteBE(int b) throws IOException {
        outputStream.writeByte(b);
    }

    /** write a set of bytes in LittleEndian  - this is exactly the same as the BigEndian version since there's no endian in a single byte */
    public void writeBytesLE(String s) throws IOException {
        outputStream.writeBytes(s);
    }

    /** write a set of bytes in BigEndian  - this is exactly the same as the LittleEndian version since there's no endian in a single byte */
    public void writeBytesBE(String s) throws IOException {
        outputStream.writeBytes(s);
    }

    /** write a 16bit short in BigEndian*/
    public void writeShortBE(int s) throws IOException {
        outputStream.writeShort(s);
    }

    /** write a 16bit short in LittleEndian*/
    public void writeShortLE(int s) throws IOException {
        outputStream.writeByte(s);
        outputStream.writeByte(s >> 8);
    }

    /** write a 32bit int in BigEndian*/
    public void writeIntBE(int i) throws IOException {
        outputStream.writeInt(i);
    }

    /** write a 32bit int in  LittleEndian*/
    public void writeIntLE(int i) throws IOException {
        outputStream.writeByte(i);
        outputStream.writeByte(i >> 8);
        outputStream.writeByte(i >> 16);
        outputStream.writeByte(i >> 24);
    }

    /** write a 64bit long in BigEndian*/
    public void writeLongBE(long l) throws IOException {
        outputStream.writeLong(l);
    }

    /** write a 64bit long in LittleEndian*/
    public void writeLongLE(long l) throws IOException {
        outputStream.writeByte((byte) (l));
        outputStream.writeByte((byte) (l >> 8));
        outputStream.writeByte((byte) (l >> 16));
        outputStream.writeByte((byte) (l >> 24));
        outputStream.writeByte((byte) (l >> 32));
        outputStream.writeByte((byte) (l >> 40));
        outputStream.writeByte((byte) (l >> 48));
        outputStream.writeByte((byte) (l >> 56));
    }

    /** write a 64bit double in BigEndian*/
    public void writeDoubleBE(double d) throws IOException {
        outputStream.writeDouble(d);
    }

    /** write a 64bit double in LittleEndian*/
    public void writeDoubleLE(double d) throws IOException {
        this.writeLongLE(Double.doubleToLongBits(d));
    }
}