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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
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 *
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package com.sun.star.lib.uno.bridges.java_remote;


import java.io.IOException;
import java.io.InputStream;

import com.sun.star.connection.XConnection;


class XConnectionInputStream_Adapter extends InputStream {
	static private final boolean DEBUG = false;

	protected XConnection _xConnection;
	protected byte        _bytes[][] = new byte[1][];

	XConnectionInputStream_Adapter(XConnection xConnection) {
		if(xConnection == null)	throw new NullPointerException("the XConnection must not be null");

		if(DEBUG) System.err.println("#### " + getClass().getName()  + " - instantiated ");

		_xConnection = xConnection;
	}

	public int read() throws IOException {

		int len  ;

		try {
			len = _xConnection.read(_bytes, 1);
		}
		catch(com.sun.star.io.IOException ioException) {
			throw new IOException(ioException.toString());
		}

		if(DEBUG) System.err.println("#### " + getClass().getName()  + " - one byte read:" +  _bytes[0][0]);

		return len == 0 ? -1 : _bytes[0][0] & 0xff;
	}

	public int read(byte[] b, int off, int len) throws IOException {
// 		byte bytes[][] = new byte[1][];

		try {
			len = _xConnection.read(_bytes, len - off);
		}
		catch(com.sun.star.io.IOException ioException) {
			throw new IOException(ioException.toString());
		}

		System.arraycopy(_bytes[0], 0, b, off, len);

		return len == 0 ? -1 : len;
	}
}

