/*
* 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.xml;
import freemarker.template.TemplateMethodModel;
import java.lang.String;
import java.util.List;
import freemarker.template.TemplateScalarModel;
import freemarker.template.TemplateModelException;
import java.util.HashMap;
/**
* @author Attila Szegedi
* @version $Id: Namespaces.java,v 1.4 2003/10/13 11:57:50 szegedia Exp $
*/
class Namespaces
implements
TemplateMethodModel,
Cloneable
{
static final Factory FACTORY = new Factory()
{
public Namespaces create()
{
return new Namespaces();
}
};
private HashMap namespaces;
private boolean shared;
Namespaces() {
namespaces = new HashMap();
namespaces.put("", "");
namespaces.put("xml", "http://www.w3.org/XML/1998/namespace");
shared = false;
}
public Object clone() {
try {
Namespaces clone = (Namespaces)super.clone();
clone.namespaces = (HashMap)namespaces.clone();
clone.shared = false;
return clone;
}
catch(CloneNotSupportedException e) {
throw new Error(); // Cannot happen
}
}
public String translateNamespacePrefixToUri(String prefix) {
synchronized(namespaces) {
return (String)namespaces.get(prefix);
}
}
public Object exec(List arguments) throws TemplateModelException {
if (arguments.size() != 2) {
throw new TemplateModelException("_registerNamespace(prefix, uri) requires two arguments");
}
registerNamespace((String)arguments.get(0), (String)arguments.get(1));
return TemplateScalarModel.EMPTY_STRING;
}
void registerNamespace(String prefix, String uri) {
synchronized(namespaces) {
namespaces.put(prefix, uri);
}
}
void markShared() {
if(!shared) {
shared = true;
}
}
boolean isShared() {
return shared;
}
interface Factory
{
Namespaces create();
}
}