001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.iso;
020
021/**
022 * This interpreter does no conversion and leaves the input the same as the output.
023 * @author jonathan.oconnor@xcom.de
024 */
025public class LiteralBinaryInterpreter implements BinaryInterpreter
026{
027    /**
028     * The only instance of this interpreter.
029     */
030    public static final LiteralBinaryInterpreter INSTANCE = new LiteralBinaryInterpreter();
031
032    /**
033     * Private constructor so we don't allow multiple instances.
034     */
035    private LiteralBinaryInterpreter()
036    {
037    }
038
039    /**
040     * Copies the input to the output.
041     */
042    public void interpret(byte[] data, byte[] b, int offset)
043    {
044        System.arraycopy(data, 0, b, offset, data.length);
045    }
046
047    /**
048     * Copies the data out of the byte array.
049     */
050    public byte[] uninterpret(byte[] rawData, int offset, int length)
051    {
052        byte[] ret = new byte[length];
053        System.arraycopy(rawData, offset, ret, 0, length);
054        return ret;
055    }
056
057    /**
058     * Returns nBytes because we are not doing any conversion.
059     */
060    public int getPackedLength(int nBytes)
061    {
062        return nBytes;
063    }
064}