/*
* 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.core;
import freemarker.template.*;
import freemarker.template.utility.StringUtil;
import java.util.List;
/**
* A holder for builtins that operate on TemplateNodeModels.
*/
abstract class NodeBuiltins {
abstract static class NodeBuiltIn extends BuiltIn {
TemplateModel _getAsTemplateModel(Environment env)
throws TemplateException
{
TemplateModel model = target.getAsTemplateModel(env);
if (!(model instanceof TemplateNodeModel)) {
throw invalidTypeException(model, target, env, "node model");
}
return calculateResult((TemplateNodeModel) model, env);
}
abstract TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env)
throws TemplateModelException;
}
static class ancestorsBI extends NodeBuiltIn {
TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
AncestorSequence result = new AncestorSequence(env);
TemplateNodeModel parent = nodeModel.getParentNode();
while (parent != null) {
result.add(parent);
parent = parent.getParentNode();
}
return result;
}
}
static class childrenBI extends NodeBuiltIn {
TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
return nodeModel.getChildNodes();
}
}
static class node_nameBI extends NodeBuiltIn {
TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
return new SimpleScalar(nodeModel.getNodeName());
}
}
static class node_typeBI extends NodeBuiltIn {
TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
return new SimpleScalar(nodeModel.getNodeType());
}
}
static class parentBI extends NodeBuiltIn {
TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
return nodeModel.getParentNode();
}
}
static class rootBI extends NodeBuiltIn {
TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
TemplateNodeModel result = nodeModel;
TemplateNodeModel parent = nodeModel.getParentNode();
while (parent != null) {
result = parent;
parent = result.getParentNode();
}
return result;
}
}
static class node_namespaceBI extends NodeBuiltIn {
TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
String nsURI = nodeModel.getNodeNamespace();
return nsURI == null ? null : new SimpleScalar(nsURI);
}
}
static class AncestorSequence extends SimpleSequence implements TemplateMethodModel {
private Environment env;
AncestorSequence(Environment env) {
this.env = env;
}
public Object exec(List names) throws TemplateModelException {
if (names == null || names.isEmpty()) {
return this;
}
AncestorSequence result = new AncestorSequence(env);
for (int i=0; i<size(); i++) {
TemplateNodeModel tnm = (TemplateNodeModel) get(i);
String nodeName = tnm.getNodeName();
String nsURI = tnm.getNodeNamespace();
if (nsURI == null) {
if (names.contains(nodeName)) {
result.add(tnm);
}
} else {
for (int j = 0; j<names.size(); j++) {
if (StringUtil.matchesName((String) names.get(j), nodeName, nsURI, env)) {
result.add(tnm);
break;
}
}
}
}
return result;
}
}
}
|