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Java Advanced Imaging Image I/O Tools API core, but without the classes
involved with javax.media.jai dependencies, JPEG2000 or
codecLibJIIO, meaning that this library can be distributed under the
modified BSD license and should be GPL compatible.
The newest version!
/*
* $RCSfile: TIFFFieldNode.java,v $
*
*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any
* kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
* EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
* NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
* USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
* ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
* CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
* REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
* INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for
* use in the design, construction, operation or maintenance of any
* nuclear facility.
*
* $Revision: 1.2 $
* $Date: 2006/04/18 20:47:02 $
* $State: Exp $
*/
package com.github.jaiimageio.impl.plugins.tiff;
import java.util.Arrays;
import java.util.List;
import javax.imageio.metadata.IIOMetadataNode;
import org.w3c.dom.Node;
import com.github.jaiimageio.plugins.tiff.TIFFDirectory;
import com.github.jaiimageio.plugins.tiff.TIFFField;
import com.github.jaiimageio.plugins.tiff.TIFFTag;
import com.github.jaiimageio.plugins.tiff.TIFFTagSet;
/**
* The Node representation of a TIFFField
* wherein the child node is procedural rather than buffered.
*
* @since 1.1-beta
*/
public class TIFFFieldNode extends IIOMetadataNode {
private static String getNodeName(TIFFField f) {
return f.getData() instanceof TIFFDirectory ?
"TIFFIFD" : "TIFFField";
}
private boolean isIFD;
/** Initialization flag. */
private Boolean isInitialized = Boolean.FALSE;
private TIFFField field;
// XXX Set the user object to "field"?
public TIFFFieldNode(TIFFField field) {
super(getNodeName(field));
isIFD = field.getData() instanceof TIFFDirectory;
this.field = field;
TIFFTag tag = field.getTag();
int tagNumber = tag.getNumber();
String tagName = tag.getName();
if(isIFD) {
if(tagNumber != 0) {
setAttribute("parentTagNumber", Integer.toString(tagNumber));
}
if(tagName != null) {
setAttribute("parentTagName", tagName);
}
TIFFDirectory dir = (TIFFDirectory)field.getData();
TIFFTagSet[] tagSets = dir.getTagSets();
if(tagSets != null) {
String tagSetNames = "";
for(int i = 0; i < tagSets.length; i++) {
tagSetNames += tagSets[i].getClass().getName();
if(i != tagSets.length - 1) {
tagSetNames += ",";
}
}
setAttribute("tagSets", tagSetNames);
}
} else {
setAttribute("number", Integer.toString(tagNumber));
setAttribute("name", tagName);
}
}
private synchronized void initialize() {
if(isInitialized == Boolean.TRUE) return;
if(isIFD) {
TIFFDirectory dir = (TIFFDirectory)field.getData();
TIFFField[] fields = dir.getTIFFFields();
if(fields != null) {
TIFFTagSet[] tagSets = dir.getTagSets();
List tagSetList = Arrays.asList(tagSets);
int numFields = fields.length;
for(int i = 0; i < numFields; i++) {
TIFFField f = fields[i];
int tagNumber = f.getTagNumber();
TIFFTag tag = TIFFIFD.getTag(tagNumber, tagSetList);
Node node = f.getAsNativeNode();
if (node != null) {
appendChild(node);
}
}
}
} else {
IIOMetadataNode child;
int count = field.getCount();
if (field.getType() == TIFFTag.TIFF_UNDEFINED) {
child = new IIOMetadataNode("TIFFUndefined");
byte[] data = field.getAsBytes();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < count; i++) {
sb.append(Integer.toString(data[i] & 0xff));
if (i < count - 1) {
sb.append(",");
}
}
child.setAttribute("value", sb.toString());
} else {
child = new IIOMetadataNode("TIFF" +
field.getTypeName(field.getType()) +
"s");
TIFFTag tag = field.getTag();
for (int i = 0; i < count; i++) {
IIOMetadataNode cchild =
new IIOMetadataNode("TIFF" +
field.getTypeName(field.getType()));
cchild.setAttribute("value", field.getValueAsString(i));
if (tag.hasValueNames() && field.isIntegral()) {
int value = field.getAsInt(i);
String name = tag.getValueName(value);
if (name != null) {
cchild.setAttribute("description", name);
}
}
child.appendChild(cchild);
}
}
appendChild(child);
}
isInitialized = Boolean.TRUE;
}
// Need to override this method to avoid a stack overflow exception
// which will occur if super.appendChild is called from initialize().
public Node appendChild(Node newChild) {
if (newChild == null) {
throw new IllegalArgumentException("newChild == null!");
}
return super.insertBefore(newChild, null);
}
// Override all methods which refer to child nodes.
public boolean hasChildNodes() {
initialize();
return super.hasChildNodes();
}
public int getLength() {
initialize();
return super.getLength();
}
public Node getFirstChild() {
initialize();
return super.getFirstChild();
}
public Node getLastChild() {
initialize();
return super.getLastChild();
}
public Node getPreviousSibling() {
initialize();
return super.getPreviousSibling();
}
public Node getNextSibling() {
initialize();
return super.getNextSibling();
}
public Node insertBefore(Node newChild,
Node refChild) {
initialize();
return super.insertBefore(newChild, refChild);
}
public Node replaceChild(Node newChild,
Node oldChild) {
initialize();
return super.replaceChild(newChild, oldChild);
}
public Node removeChild(Node oldChild) {
initialize();
return super.removeChild(oldChild);
}
public Node cloneNode(boolean deep) {
initialize();
return super.cloneNode(deep);
}
}