/*
    * Copyright (C) 2012, Google Inc. and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
    */
  
  package org.eclipse.jgit.internal.storage.file;
  
  import java.io.DataOutput;
  import java.io.IOException;
  import java.io.OutputStream;
  
  import org.eclipse.jgit.util.NB;
  
  /**
   * An implementation of {@link DataOutput} that only handles
   * {@link #writeInt(int)} and {@link #writeLong(long)} using the Git conversion
   * utilities for network byte order handling. This is needed to write
   * {@link com.googlecode.javaewah.EWAHCompressedBitmap}s.
   */
  class SimpleDataOutput implements DataOutput {
  	private final OutputStream fd;
  
  	private final byte[] buf = new byte[8];
  
  	SimpleDataOutput(OutputStream fd) {
  		this.fd = fd;
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void writeShort(int v) throws IOException {
  		NB.encodeInt16(buf, 0, v);
  		fd.write(buf, 0, 2);
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void writeInt(int v) throws IOException {
  		NB.encodeInt32(buf, 0, v);
  		fd.write(buf, 0, 4);
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void writeLong(long v) throws IOException {
  		NB.encodeInt64(buf, 0, v);
  		fd.write(buf, 0, 8);
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void write(int b) throws IOException {
  		throw new UnsupportedOperationException();
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void write(byte[] b) throws IOException {
  		throw new UnsupportedOperationException();
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void write(byte[] b, int off, int len) throws IOException {
  		throw new UnsupportedOperationException();
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void writeBoolean(boolean v) throws IOException {
  		throw new UnsupportedOperationException();
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void writeByte(int v) throws IOException {
  		throw new UnsupportedOperationException();
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void writeChar(int v) throws IOException {
  		throw new UnsupportedOperationException();
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void writeFloat(float v) throws IOException {
  		throw new UnsupportedOperationException();
  	}
  
  	/** {@inheritDoc} */
  	@Override
  	public void writeDouble(double v) throws IOException {
 		throw new UnsupportedOperationException();
 	}
 
 	/** {@inheritDoc} */
 	@Override
 	public void writeBytes(String s) throws IOException {
 		throw new UnsupportedOperationException();
 	}
 
 	/** {@inheritDoc} */
 	@Override
 	public void writeChars(String s) throws IOException {
 		throw new UnsupportedOperationException();
 	}
 
 	/** {@inheritDoc} */
 	@Override
 	public void writeUTF(String s) throws IOException {
 		throw new UnsupportedOperationException();
 	}
 }