/*
* 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 visigoths@visigoths.org.
*
* 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.dom;
import freemarker.template.*;
import freemarker.template.utility.StringUtil;
import freemarker.core.Environment;
import org.w3c.dom.*;
import java.util.List;
import java.util.ArrayList;
class NodeListModel extends SimpleSequence implements TemplateHashModel {
NodeModel contextNode;
XPathSupport xpathSupport;
private static ObjectWrapper nodeWrapper = new ObjectWrapper() {
public TemplateModel wrap(Object obj) {
if (obj instanceof NodeModel) {
return (NodeModel) obj;
}
return NodeModel.wrap((Node) obj);
}
};
NodeListModel(Node node) {
this(NodeModel.wrap(node));
}
NodeListModel(NodeModel contextNode) {
super(nodeWrapper);
this.contextNode = contextNode;
}
NodeListModel(NodeList nodeList, NodeModel contextNode) {
super(nodeWrapper);
for (int i=0; i<nodeList.getLength();i++) {
list.add(nodeList.item(i));
}
this.contextNode = contextNode;
}
NodeListModel(NamedNodeMap nodeList, NodeModel contextNode) {
super(nodeWrapper);
for (int i=0; i<nodeList.getLength();i++) {
list.add(nodeList.item(i));
}
this.contextNode = contextNode;
}
NodeListModel(List list, NodeModel contextNode) {
super(list, nodeWrapper);
this.contextNode = contextNode;
}
NodeListModel filterByName(String name) throws TemplateModelException {
NodeListModel result = new NodeListModel(contextNode);
int size = size();
if (size == 0) {
return result;
}
Environment env = Environment.getCurrentEnvironment();
for (int i = 0; i<size; i++) {
NodeModel nm = (NodeModel) get(i);
if (nm instanceof ElementModel) {
if (((ElementModel) nm).matchesName(name, env)) {
result.add(nm);
}
}
}
return result;
}
public boolean isEmpty() {
return size() == 0;
}
public TemplateModel get(String key) throws TemplateModelException {
if (size() ==1) {
NodeModel nm = (NodeModel) get(0);
return nm.get(key);
}
if (key.equals("@@markup")
|| key.equals("@@nested_markup")
|| key.equals("@@text"))
{
StringBuffer result = new StringBuffer();
for (int i=0; i<size(); i++) {
NodeModel nm = (NodeModel) get(i);
TemplateScalarModel textModel = (TemplateScalarModel) nm.get(key);
result.append(textModel.getAsString());
}
return new SimpleScalar(result.toString());
}
if (StringUtil.isXMLID(key)
|| ((key.startsWith("@") && StringUtil.isXMLID(key.substring(1))))
|| key.equals("*") || key.equals("**") || key.equals("@@") || key.equals("@*"))
{
NodeListModel result = new NodeListModel(contextNode);
for (int i=0; i<size(); i++) {
NodeModel nm = (NodeModel) get(i);
if (nm instanceof ElementModel) {
TemplateSequenceModel tsm = (TemplateSequenceModel) ((ElementModel) nm).get(key);
int size = tsm == null ? 0 : tsm.size();
for (int j=0; j < size; j++) {
result.add(tsm.get(j));
}
}
}
if (result.size() == 1) {
return result.get(0);
}
return result;
}
XPathSupport xps = getXPathSupport();
if (xps != null) {
Object context = (size() == 0) ? null : rawNodeList();
return xps.executeQuery(context, key);
}
throw new TemplateModelException("Key: '" + key + "' is not legal for a node sequence ("
+ this.getClass().getName() + "). This node sequence contains " + size() + " node(s). "
+ "Some keys are valid only for node sequences of size 1. "
+ "If you use Xalan (instead of Jaxen), XPath expression keys work only with "
+ "node lists of size 1.");
}
private List rawNodeList() throws TemplateModelException {
int size = size();
ArrayList al = new ArrayList(size);
for (int i=0; i<size; i++) {
al.add(((NodeModel) get(i)).node);
}
return al;
}
XPathSupport getXPathSupport() throws TemplateModelException {
if (xpathSupport == null) {
if (contextNode != null) {
xpathSupport = contextNode.getXPathSupport();
}
else if (size() >0) {
xpathSupport = ((NodeModel) get(0)).getXPathSupport();
}
}
return xpathSupport;
}
}