/*
*
*
* Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* 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 version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
//-----------------------------------------------------------------------------
// PACKAGE DEFINITION
//-----------------------------------------------------------------------------
package sim.toolkit;
//-----------------------------------------------------------------------------
// IMPORTS
//-----------------------------------------------------------------------------
import javacard.framework.Util;
/**
* This class is the basic class for the construction of a list of simple TLV
* elements.
* This class is able to handle Simple TLV with a value field no longer than
* 255 bytes.
*
* @version 8.3.0
*
* @see ViewHandler
* @see ProactiveHandler
* @see EnvelopeResponseHandler
* @see ToolkitException
*/
public abstract class EditHandler extends ViewHandler {
/**
* Default constructor.
*/
EditHandler() {}
// ------------------------------- Constructors ---------------------------
/**
* Builds a new EditHandler object.
*
* @param buffer the buffer containg the TLV list
* @param offset the position of the TLV list
* @param length the length of the TLV list
*
* @exception NullPointerException if <code>buffer</code>
* is <code>null</code>
* @exception ArrayIndexOutOfBoundsException if <code>offset</code> or
* <code>length</code> or both would cause access outside array bounds
*/
EditHandler(byte[] buffer, short offset, short length)
throws NullPointerException,
ArrayIndexOutOfBoundsException {
}
// ------------------------------- Public methods -------------------------
/**
* Clears the TLV list of an EditHandler and resets the current
* TLV selected.
*
* @exception ToolkitException with the following reason codes: <ul>
* <li><code>HANDLER_NOT_AVAILABLE</code> if the handler is busy</ul>
*/
public void clear() throws ToolkitException {
}
/**
* Appends a buffer into the EditHandler buffer.
* A successful append does not modify the TLV selected.
* The TLV list structure of the handler should be maintained by the
* applet in the appended array (e.g. the length of the TLV element
* should be coded according to ISO 7816-6), if the TLV manipulation
* methods are to be used afterwards with the handler.
*
* <p>
* Notes:<ul>
* <li><em>If </em><code>offset</code><em> or
* </em><code>length</code><em> parameter is negative an
* </em><code>ArrayIndexOutOfBoundsException</code>
* <em> exception is thrown and no append is performed.</em>
* <li><em>If </em><code>offset+length</code><em> is greater than
* </em><code>buffer.length</code><em>, the length of the
* </em><code>buffer</code><em> array an
* </em><code>ArrayIndexOutOfBoundsException</code><em> exception is
* thrown and no append is performed.</em>
* </ul>
*
* @param buffer the buffer containing data for copy
* @param offset the offset in the buffer
* @param length the value length of the buffer
*
* @exception NullPointerException if <code>buffer</code>
* is <code>null</code>
* @exception ArrayIndexOutOfBoundsException if append would cause
* access of data outside array bounds
* @exception ToolkitException with the following reason codes: <ul>
* <li><code>HANDLER_OVERFLOW</code> if the EditHandler buffer
* is to small to append the requested data
* <li><code>HANDLER_NOT_AVAILABLE</code> if the handler is busy</ul>
*/
public void appendArray(byte[] buffer,
short offset,
short length) throws NullPointerException,
ArrayIndexOutOfBoundsException,
ToolkitException {
byte[] APDUBuffer = ViewHandler.getAPDUBuffer();
Util.arrayCopy(buffer, offset, APDUBuffer, (short)0, length);
ViewHandler.setOutBufferData(length);
}
/**
* Appends a TLV element to the current TLV list (byte array format).
* A successful append does not modify the TLV selected.
*
* <p>
* Notes:<ul>
* <li><em>If </em><code>valueOffset</code><em> or
* </em><code>valueLength</code><em> parameter is negative an
* </em><code>ArrayIndexOutOfBoundsException</code>
* <em> exception is thrown and no append is performed.</em>
* <li><em>If </em><code>valueOffset+valueLength</code><em> is
* greater than </em><code>value.length</code><em>, the length
* of the </em><code>value</code><em> array an
* </em><code>ArrayIndexOutOfBoundsException</code><em> exception
* is thrown and no append is performed.</em>
* </ul>
*
* @param tag the tag of the TLV to append, including the Comprehension
* Required flag
* @param value the buffer containing the TLV value
* @param valueOffset the offset of the TLV value in the buffer
* @param valueLength the value length of the TLV to append
*
* @exception NullPointerException if <code>value</code>
* is <code>null</code>
* @exception ArrayIndexOutOfBoundsException if append would cause
* access of data outside array bounds
* @exception ToolkitException with the following reason codes: <ul>
* <li><code>HANDLER_OVERFLOW</code> if the EditHandler buffer
* is to small to append the requested data
* <li><code>HANDLER_NOT_AVAILABLE</code> if the handler is busy
* <li><code>BAD_INPUT_PARAMETER</code> if <code>valueLength</code>
* is greater than 255</ul>
*/
public void appendTLV(byte tag,
byte[] value,
short valueOffset,
short valueLength) throws NullPointerException,
ArrayIndexOutOfBoundsException,
ToolkitException {
byte[] APDUBuffer = ViewHandler.getAPDUBuffer();
// prepare the data to be appended to the TLV list
APDUBuffer[0] = tag;
APDUBuffer[1] = (byte)valueLength;
Util.arrayCopy(value, valueOffset, APDUBuffer, (short)2, valueLength);
ViewHandler.setOutBufferData((short)(valueLength + 2));
}
/**
* Appends a TLV element to the current TLV list (1-byte element).
* This method is useful to add single byte elements as Item Identifier
* or Tone.
* A successful append does not modify the TLV selected.
*
* @param tag the tag of the TLV to append, including the Comprehension
* Required flag
* @param value the TLV value on 1 byte
*
* @exception ToolkitException with the following reason codes: <ul>
* <li><code>HANDLER_OVERFLOW</code> if the EditHandler buffer
* is to small to append the requested data
* <li><code>HANDLER_NOT_AVAILABLE</code> if the handler is busy</ul>
*/
public void appendTLV(byte tag,
byte value) throws ToolkitException {
byte[] APDUBuffer = ViewHandler.getAPDUBuffer();
// prepare the data to be appended to the TLV list
APDUBuffer[0] = tag; // set the tag
APDUBuffer[1] = (byte)1; // 1-byte element so length is 1
APDUBuffer[2] = value; // 1-byte element
ViewHandler.setOutBufferData((short)3);
}
/**
* Appends a TLV element to the current TLV list (2-byte element)
* This method is useful to add double byte elements as Device Identities,
* Duration or Response Length. A successful append does not modify the
* TLV selected.
*
*
* @param tag the tag of the TLV to append, including the Comprehension
* Required flag
* @param value1 the 1st byte (msb) of the TLV value
* @param value2 the 2nd byte (lsb) of the TLV value
*
* @exception ToolkitException with the following reason codes: <ul>
* <li><code>HANDLER_OVERFLOW</code> if the EditHandler buffer
* is to small to append the requested data
* <li><code>HANDLER_NOT_AVAILABLE</code> if the handler is busy</ul>
*/
public void appendTLV(byte tag,
byte value1,
byte value2) throws ToolkitException {
byte[] APDUBuffer = ViewHandler.getAPDUBuffer();
// prepare the data to be appended to the TLV list
APDUBuffer[0] = tag; // set the tag
APDUBuffer[1] = (byte)1; // 2-byte element so length is 1
APDUBuffer[2] = value1; // 1-byte element
APDUBuffer[3] = value2; // 1-byte element
ViewHandler.setOutBufferData((short)4);
}
/**
* Appends a TLV element to the current TLV list (1 byte and a
* byte array format).
* A successful append does not modify the TLV selected.
*
* <p>
* Notes:<ul>
* <li><em>If </em><code>value2Offset</code><em> or
* </em><code>value2Length</code><em> parameter is negative
* an </em><code>ArrayIndexOutOfBoundsException</code><em>
* exception is thrown and no append is performed.</em>
* <li><em>If </em><code>value2Offset+value2Length</code><em> is greater
* than </em><code>value2.length</code><em>, the length
* of the </em><code>value2</code><em> array an
* </em><code>ArrayIndexOutOfBoundsException</code><em> exception is thrown
* and no append is performed.</em>
* </ul>
*
* @param tag the tag of the TLV to append, including the
* Comprehension Required flag
* @param value1 the first byte in the value field
* @param value2 the buffer containing the rest of the TLV field
* @param value2Offset the offset of the rest of the TLV field in the buffer
* @param value2Length the value length of the rest of the TLV
* field to append
*
* @exception NullPointerException if <code>value2</code> is
* <code>null</code>
* @exception ArrayIndexOutOfBoundsException if append would
* cause access of data outside array bounds.
* @exception ToolkitException with the following reason codes: <ul>
* <li><code>HANDLER_OVERFLOW</code> if the EditHandler buffer is to
* small to append the requested data
* <li><code>HANDLER_NOT_AVAILABLE</code> if the handler is busy
* <li><code>BAD_INPUT_PARAMETER</code> if <code>value2Length</code>
* is greater than 254</ul> */
public void appendTLV(byte tag,
byte value1,
byte[] value2,
short value2Offset,
short value2Length) throws NullPointerException,
ArrayIndexOutOfBoundsException,
ToolkitException {
byte[] APDUBuffer = ViewHandler.getAPDUBuffer();
// prepare the data to be appended to the TLV list
APDUBuffer[0] = tag; // set the tag
APDUBuffer[1] = (byte)(value2Length + 1); // 1-byte element
// so length is 1
APDUBuffer[2] = value1; // 1-byte element
Util.arrayCopy(value2, value2Offset, APDUBuffer,
(short)3, value2Length);
ViewHandler.setOutBufferData((short)(value2Length+3));
}
}
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