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freemarker.ext.xml.JdomNavigator Maven / Gradle / Ivy
/*
* Copyright (c) 2003 The Visigoth Software Society. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions 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.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowledgement:
* "This product includes software developed by the
* Visigoth Software Society (http://www.visigoths.org/)."
* Alternately, this acknowledgement may appear in the software itself,
* if and wherever such third-party acknowledgements normally appear.
*
* 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
* project contributors may be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected] .
*
* 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
* nor may "FreeMarker" or "Visigoth" appear in their names
* without prior written permission of the Visigoth Software Society.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Visigoth Software Society. For more
* information on the Visigoth Software Society, please see
* http://www.visigoths.org/
*/
package freemarker.ext.xml;
import java.io.IOException;
import java.io.StringWriter;
import java.util.Iterator;
import java.util.List;
import freemarker.template.TemplateModelException;
import org.jaxen.Context;
import org.jaxen.NamespaceContext;
import org.jaxen.jdom.JDOMXPath;
import org.jdom.Element;
import org.jdom.Attribute;
import org.jdom.CDATA;
import org.jdom.Comment;
import org.jdom.DocType;
import org.jdom.Document;
import org.jdom.EntityRef;
import org.jdom.Namespace;
import org.jdom.ProcessingInstruction;
import org.jdom.Text;
import org.jdom.output.XMLOutputter;
/**
* @version $Id: JdomNavigator.java,v 1.3.4.2 2006/11/14 10:42:54 szegedia Exp $
* @author Attila Szegedi
*/
class JdomNavigator extends Navigator {
private static final XMLOutputter OUTPUT = new XMLOutputter();
JdomNavigator() {
}
void getAsString(Object node, StringWriter sw)
throws
TemplateModelException
{
try {
if (node instanceof Element) {
OUTPUT.output((Element)node, sw);
}
else if (node instanceof Attribute) {
Attribute attribute = (Attribute)node;
sw.write(" ");
sw.write(attribute.getQualifiedName());
sw.write("=\"");
sw.write(OUTPUT.escapeAttributeEntities(attribute.getValue()));
sw.write("\"");
}
else if (node instanceof Text) {
OUTPUT.output((Text)node, sw);
}
else if (node instanceof Document) {
OUTPUT.output((Document)node, sw);
}
else if (node instanceof ProcessingInstruction) {
OUTPUT.output((ProcessingInstruction)node, sw);
}
else if (node instanceof Comment) {
OUTPUT.output((Comment)node, sw);
}
else if (node instanceof CDATA) {
OUTPUT.output((CDATA)node, sw);
}
else if (node instanceof DocType) {
OUTPUT.output((DocType)node, sw);
}
else if (node instanceof EntityRef) {
OUTPUT.output((EntityRef)node, sw);
}
else {
throw new TemplateModelException(node.getClass().getName() + " is not a core JDOM class");
}
}
catch(IOException e) {
throw new TemplateModelException(e);
}
}
void getChildren(Object node, String localName, String namespaceUri, List result) {
if(node instanceof Element) {
Element e = (Element)node;
if(localName == null) {
result.addAll(e.getChildren());
}
else {
result.addAll(e.getChildren(localName, Namespace.getNamespace("", namespaceUri)));
}
}
else if(node instanceof Document) {
Element root = ((Document)node).getRootElement();
if(localName == null || (equal(root.getName(), localName) && equal(root.getNamespaceURI(), namespaceUri))) {
result.add(root);
}
}
}
void getAttributes(Object node, String localName, String namespaceUri, List result) {
if(node instanceof Element) {
Element e = (Element)node;
if(localName == null) {
result.addAll(e.getAttributes());
}
else {
Attribute attr = e.getAttribute(localName, Namespace.getNamespace("", namespaceUri));
if(attr != null) {
result.add(attr);
}
}
} else if (node instanceof ProcessingInstruction) {
ProcessingInstruction pi = (ProcessingInstruction)node;
if ("target".equals(localName)) {
result.add(new Attribute("target", pi.getTarget()));
}
else if ("data".equals(localName)) {
result.add(new Attribute("data", pi.getData()));
}
else {
result.add(new Attribute(localName, pi.getValue(localName)));
}
} else if (node instanceof DocType) {
DocType doctype = (DocType)node;
if ("publicId".equals(localName)) {
result.add(new Attribute("publicId", doctype.getPublicID()));
}
else if ("systemId".equals(localName)) {
result.add(new Attribute("systemId", doctype.getSystemID()));
}
else if ("elementName".equals(localName)) {
result.add(new Attribute("elementName", doctype.getElementName()));
}
}
}
void getDescendants(Object node, List result) {
if(node instanceof Document) {
Element root = ((Document)node).getRootElement();
result.add(root);
getDescendants(root, result);
}
else if(node instanceof Element) {
getDescendants((Element)node, result);
}
}
private void getDescendants(Element node, List result) {
for (Iterator iter = node.getChildren().iterator(); iter.hasNext();) {
Element subnode = (Element)iter.next();
result.add(subnode);
getDescendants(subnode, result);
}
}
Object getParent(Object node) {
if (node instanceof Element) {
return((Element)node).getParent();
}
if (node instanceof Attribute) {
return((Attribute)node).getParent();
}
if (node instanceof Text) {
return((Text)node).getParent();
}
if (node instanceof ProcessingInstruction) {
return((ProcessingInstruction)node).getParent();
}
if (node instanceof Comment) {
return((Comment)node).getParent();
}
if (node instanceof EntityRef) {
return((EntityRef)node).getParent();
}
return null;
}
Object getDocument(Object node) {
if (node instanceof Element) {
return ((Element)node).getDocument();
}
else if (node instanceof Attribute) {
Element parent = ((Attribute)node).getParent();
return parent == null ? null : parent.getDocument();
}
else if (node instanceof Text) {
Element parent = ((Text)node).getParent();
return parent == null ? null : parent.getDocument();
}
else if (node instanceof Document)
return node;
else if (node instanceof ProcessingInstruction) {
return ((ProcessingInstruction)node).getDocument();
}
else if (node instanceof EntityRef) {
return ((EntityRef)node).getDocument();
}
else if (node instanceof Comment) {
return ((Comment)node).getDocument();
}
return null;
}
Object getDocumentType(Object node) {
return
node instanceof Document
? ((Document)node).getDocType()
: null;
}
void getContent(Object node, List result) {
if (node instanceof Element)
result.addAll(((Element)node).getContent());
else if (node instanceof Document)
result.addAll(((Document)node).getContent());
}
String getText(Object node) {
if (node instanceof Element) {
return ((Element)node).getTextTrim();
}
if (node instanceof Attribute) {
return ((Attribute)node).getValue();
}
if (node instanceof CDATA) {
return ((CDATA)node).getText();
}
if (node instanceof Comment) {
return ((Comment)node).getText();
}
if (node instanceof ProcessingInstruction) {
return ((ProcessingInstruction)node).getData();
}
return null;
}
String getLocalName(Object node) {
if (node instanceof Element) {
return ((Element)node).getName();
}
if (node instanceof Attribute) {
return ((Attribute)node).getName();
}
if (node instanceof EntityRef) {
return ((EntityRef)node).getName();
}
if (node instanceof ProcessingInstruction) {
return ((ProcessingInstruction)node).getTarget();
}
if (node instanceof DocType) {
return ((DocType)node).getElementName();
}
return null;
}
String getNamespacePrefix(Object node) {
if(node instanceof Element) {
return ((Element)node).getNamespacePrefix();
}
if(node instanceof Attribute) {
return ((Attribute)node).getNamespacePrefix();
}
return null;
}
String getNamespaceUri(Object node) {
if(node instanceof Element) {
return ((Element)node).getNamespaceURI();
}
if(node instanceof Attribute) {
return ((Attribute)node).getNamespaceURI();
}
return null;
}
String getType(Object node) {
if(node instanceof Attribute) {
return "attribute";
}
if(node instanceof CDATA) {
return "cdata";
}
if(node instanceof Comment) {
return "comment";
}
if(node instanceof Document) {
return "document";
}
if(node instanceof DocType) {
return "documentType";
}
if(node instanceof Element) {
return "element";
}
if(node instanceof EntityRef) {
return "entityReference";
}
if(node instanceof Namespace) {
return "namespace";
}
if(node instanceof ProcessingInstruction) {
return "processingInstruction";
}
if(node instanceof Text) {
return "text";
}
return "unknown";
}
XPathEx createXPathEx(String xpathString) throws TemplateModelException
{
try {
return new JDOMXPathEx(xpathString);
}
catch(Exception e) {
throw new TemplateModelException(e);
}
}
private static final class JDOMXPathEx
extends
JDOMXPath
implements
XPathEx
{
JDOMXPathEx(String path)
throws
Exception
{
super(path);
}
public List selectNodes(Object object, NamespaceContext namespaces)
throws
TemplateModelException
{
Context context = getContext(object);
context.getContextSupport().setNamespaceContext(namespaces);
try {
return selectNodesForContext(context);
}
catch(Exception e) {
throw new TemplateModelException(e);
}
}
}
}
