001: /*
002: * $RCSfile: UUIDBox.java,v $
003: *
004: *
005: * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
006: *
007: * Redistribution and use in source and binary forms, with or without
008: * modification, are permitted provided that the following conditions
009: * are met:
010: *
011: * - Redistribution of source code must retain the above copyright
012: * notice, this list of conditions and the following disclaimer.
013: *
014: * - Redistribution in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * Neither the name of Sun Microsystems, Inc. or the names of
020: * contributors may be used to endorse or promote products derived
021: * from this software without specific prior written permission.
022: *
023: * This software is provided "AS IS," without a warranty of any
024: * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
025: * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
026: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
027: * EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
028: * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
029: * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
030: * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
031: * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
032: * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
033: * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
034: * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
035: * POSSIBILITY OF SUCH DAMAGES.
036: *
037: * You acknowledge that this software is not designed or intended for
038: * use in the design, construction, operation or maintenance of any
039: * nuclear facility.
040: *
041: * $Revision: 1.1 $
042: * $Date: 2005/02/11 05:01:37 $
043: * $State: Exp $
044: */
045: package com.sun.media.imageioimpl.plugins.jpeg2000;
046:
047: import javax.imageio.metadata.IIOInvalidTreeException;
048: import javax.imageio.metadata.IIOMetadataNode;
049: import org.w3c.dom.Node;
050: import org.w3c.dom.NodeList;
051:
052: /** This class is defined to represent a UUID Box of JPEG JP2
053: * file format. This type of box has a length, a type of "uuid". Its
054: * content is a 16-byte UUID followed with a various-length data.
055: */
056: public class UUIDBox extends Box {
057: /** Cache the element names for this box's xml definition */
058: private static String[] elementNames = { "UUID", "Data" };
059:
060: /** This method will be called by the getNativeNodeForSimpleBox of the
061: * class Box to get the element names.
062: */
063: public static String[] getElementNames() {
064: return elementNames;
065: }
066:
067: /** The data elements in this UUID box. */
068: private byte[] uuid;
069: private byte[] udata;
070:
071: /** Constructs a <code>UUIDBox</code> from its content data array. */
072: public UUIDBox(byte[] data) {
073: super (8 + data.length, 0x75756964, data);
074: }
075:
076: /** Constructs a <code>UUIDBox</code> based on the provided
077: * <code>org.w3c.dom.Node</code>.
078: */
079: public UUIDBox(Node node) throws IIOInvalidTreeException {
080: super (node);
081: NodeList children = node.getChildNodes();
082:
083: for (int i = 0; i < children.getLength(); i++) {
084: Node child = children.item(i);
085: String name = child.getNodeName();
086:
087: if ("UUID".equals(name)) {
088: uuid = Box.getByteArrayElementValue(child);
089: }
090:
091: if ("Data".equals(name)) {
092: udata = Box.getByteArrayElementValue(child);
093: }
094: }
095: }
096:
097: /** Parses the data elements from the provided data array. */
098: protected void parse(byte[] data) {
099: uuid = new byte[16];
100: System.arraycopy(data, 0, uuid, 0, 16);
101: udata = new byte[data.length - 16];
102: System.arraycopy(data, 16, udata, 0, udata.length);
103: }
104:
105: /** Returns the UUID of this box. */
106: public byte[] getUUID() {
107: return uuid;
108: }
109:
110: /** Returns the UUID data of this box. */
111: public byte[] getData() {
112: return udata;
113: }
114:
115: /** Creates an <code>IIOMetadataNode</code> from this UUID
116: * box. The format of this node is defined in the XML dtd and xsd
117: * for the JP2 image file.
118: */
119: public IIOMetadataNode getNativeNode() {
120: return getNativeNodeForSimpleBox();
121: }
122:
123: protected void compose() {
124: if (data != null)
125: return;
126: data = new byte[16 + udata.length];
127: System.arraycopy(uuid, 0, data, 0, 16);
128: System.arraycopy(udata, 0, data, 16, udata.length);
129: }
130: }
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