001: /*
002: * $RCSfile: DataEntryURLBox.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 05:01:32 $
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 Data Entry URL Box of JPEG JP2
053: * file format. A Data Entry URL Box has a length, and a fixed type
054: * of "url ". Its content are a one-byte version, a three-byte flags and
055: * a URL pertains to the UUID List box within its UUID Info superbox.
056: */
057: public class DataEntryURLBox extends Box {
058: /** Cache the element names for this box's xml definition */
059: private static String[] elementNames = { "Version", "Flags", "URL" };
060:
061: /** This method will be called by the getNativeNodeForSimpleBox of the
062: * class Box to get the element names.
063: */
064: public static String[] getElementNames() {
065: return elementNames;
066: }
067:
068: /** The element values. */
069: private byte version;
070: private byte[] flags;
071: private String url;
072:
073: /** Constructs a <code>DataEntryURLBox</code> from its content data. */
074: public DataEntryURLBox(byte[] data) {
075: super (8 + data.length, 0x75726C20, data);
076: }
077:
078: /** Constructs a <code>DataEntryURLBox</code> from its data elements. */
079: public DataEntryURLBox(byte version, byte[] flags, String url) {
080: super (12 + url.length(), 0x75726C20, null);
081: this .version = version;
082: this .flags = flags;
083: this .url = url;
084: }
085:
086: /** Constructs a <code>DataEntryURLBox</code> from a Node. */
087: public DataEntryURLBox(Node node) throws IIOInvalidTreeException {
088: super (node);
089: NodeList children = node.getChildNodes();
090:
091: for (int i = 0; i < children.getLength(); i++) {
092: Node child = children.item(i);
093: String name = child.getNodeName();
094:
095: if ("Version".equals(name)) {
096: version = Box.getByteElementValue(child);
097: }
098:
099: if ("Flags".equals(name)) {
100: flags = Box.getByteArrayElementValue(child);
101: }
102:
103: if ("URL".equals(name)) {
104: url = Box.getStringElementValue(child);
105: }
106: }
107: }
108:
109: /** Parses the content of this box from its content byte array. */
110: protected void parse(byte[] data) {
111: version = data[0];
112: flags = new byte[3];
113: flags[0] = data[1];
114: flags[1] = data[2];
115: flags[2] = data[3];
116:
117: url = new String(data, 4, data.length - 4);
118: }
119:
120: /** Creates an <code>IIOMetadataNode</code> from this data entry URL
121: * box. The format of this node is defined in the XML dtd and xsd
122: * for the JP2 image file.
123: */
124: public IIOMetadataNode getNativeNode() {
125: return getNativeNodeForSimpleBox();
126: }
127:
128: /** Returns the <code>Version</code> data element. */
129: public byte getVersion() {
130: return version;
131: }
132:
133: /** Returns the <code>Flags</code> data element. */
134: public byte[] getFlags() {
135: return flags;
136: }
137:
138: /** Returns the <code>URL</code> data element. */
139: public String getURL() {
140: return url;
141: }
142:
143: protected void compose() {
144: if (data != null)
145: return;
146: data = new byte[4 + url.length()];
147:
148: data[0] = version;
149: data[1] = flags[0];
150: data[2] = flags[1];
151: data[3] = flags[2];
152: System.arraycopy(url.getBytes(), 0, data, 4, url.length());
153: }
154: }
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