/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.stax.impl.transformer.canonicalizer;
import org.apache.xml.security.stax.ext.stax.XMLSecAttribute;
import org.apache.xml.security.stax.ext.stax.XMLSecEvent;
import org.apache.xml.security.stax.ext.stax.XMLSecStartElement;
import javax.xml.namespace.QName;
import java.util.*;
/**
* @author $Author: giger $
* @version $Revision: 1460408 $ $Date: 2013-03-24 15:47:32 +0000 (Sun, 24 Mar 2013) $
*/
public class Canonicalizer11 extends CanonicalizerBase {
public Canonicalizer11(boolean includeComments) {
super(includeComments);
}
@Override
protected List<XMLSecAttribute> getInitialUtilizedAttributes(final XMLSecStartElement xmlSecStartElement,
final C14NStack<XMLSecEvent> outputStack) {
List<XMLSecAttribute> utilizedAttributes = Collections.emptyList();
List<XMLSecAttribute> visibleAttributes = new ArrayList<XMLSecAttribute>();
xmlSecStartElement.getAttributesFromCurrentScope(visibleAttributes);
for (int i = 0; i < visibleAttributes.size(); i++) {
XMLSecAttribute comparableAttribute = visibleAttributes.get(i);
final QName comparableAttributeName = comparableAttribute.getName();
//xml:id attributes must be handled like other attributes: emit but dont inherit
if (!XML.equals(comparableAttributeName.getPrefix())) {
continue;
}
if ("id".equals(comparableAttributeName.getLocalPart())
|| "base".equals(comparableAttributeName.getLocalPart())) {
continue;
}
if (outputStack.containsOnStack(comparableAttribute) != null) {
continue;
}
if (utilizedAttributes == Collections.<XMLSecAttribute>emptyList()) {
utilizedAttributes = new ArrayList<XMLSecAttribute>(2);
}
utilizedAttributes.add(comparableAttribute);
outputStack.peek().add(comparableAttribute);
}
List<XMLSecAttribute> elementAttributes = xmlSecStartElement.getOnElementDeclaredAttributes();
for (int i = 0; i < elementAttributes.size(); i++) {
XMLSecAttribute comparableAttribute = elementAttributes.get(i);
//attributes with xml prefix are already processed in the for loop above
//xml:id attributes must be handled like other attributes: emit but dont inherit
final QName attributeName = comparableAttribute.getName();
if (XML.equals(attributeName.getPrefix())) {
continue;
}
if (utilizedAttributes == Collections.<XMLSecAttribute>emptyList()) {
utilizedAttributes = new ArrayList<XMLSecAttribute>(2);
}
utilizedAttributes.add(comparableAttribute);
}
return utilizedAttributes;
}
}