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/*
* Copyright 1999-2009 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.xml.security.test.signature;
import java.util.HashMap;
import java.util.Map;
import org.apache.xerces.dom.DocumentImpl;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* A quick and dirty document implementation, that
* implements the getElementById function by looking at "Id" attributes.
*
* @author wglas
*/
public class IndexedDocument extends DocumentImpl
{
private static final long serialVersionUID = -1342041999864449753L;
private static final String ID_ATTR = "Id";
private Map idMap;
private void addToIdMap(Element element)
{
String id = element.getAttribute(ID_ATTR);
if (id != null)
this.idMap.put(id,element);
for (Node node = element.getFirstChild(); node != null; node = node.getNextSibling())
{
if (node instanceof Element)
{
Element e = (Element) node;
this.addToIdMap(e);
}
}
}
/* (non-Javadoc)
* @see org.apache.xerces.dom.CoreDocumentImpl#getElementById(java.lang.String)
*/
public Element getElementById(String id)
{
if (this.idMap == null)
{
this.idMap = new HashMap();
this.addToIdMap(this.getDocumentElement());
}
return (Element)this.idMap.get(id);
}
}
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