/**
* 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.cxf.ws.security.policy.builders;
import javax.xml.namespace.QName;
import org.w3c.dom.Element;
import org.apache.cxf.Bus;
import org.apache.cxf.helpers.DOMUtils;
import org.apache.cxf.ws.security.policy.SP11Constants;
import org.apache.cxf.ws.security.policy.SP12Constants;
import org.apache.cxf.ws.security.policy.SPConstants;
import org.apache.cxf.ws.security.policy.WSSPolicyException;
import org.apache.cxf.ws.security.policy.custom.AlgorithmSuiteLoader;
import org.apache.cxf.ws.security.policy.custom.DefaultAlgorithmSuiteLoader;
import org.apache.cxf.ws.security.policy.model.AlgorithmSuite;
import org.apache.neethi.Assertion;
import org.apache.neethi.AssertionBuilderFactory;
import org.apache.neethi.builders.AssertionBuilder;
public class AlgorithmSuiteBuilder implements AssertionBuilder<Element> {
private Bus bus;
public AlgorithmSuiteBuilder(Bus bus) {
this.bus = bus;
}
public Assertion build(Element element, AssertionBuilderFactory factory)
throws IllegalArgumentException {
SPConstants consts = SP11Constants.SP_NS.equals(element.getNamespaceURI())
? SP11Constants.INSTANCE : SP12Constants.INSTANCE;
AlgorithmSuiteLoader loader = bus.getExtension(AlgorithmSuiteLoader.class);
if (loader == null) {
loader = new DefaultAlgorithmSuiteLoader();
}
Element policyElement = DOMUtils.getFirstElement(element);
AlgorithmSuite algorithmSuite = null;
try {
algorithmSuite = loader.getAlgorithmSuite(policyElement, consts);
} catch (WSSPolicyException e) {
throw new IllegalArgumentException(e);
}
if (algorithmSuite == null) {
String algorithmSuiteName = DOMUtils.getFirstElement(policyElement).getLocalName();
throw new IllegalArgumentException(
"Algorithm suite \"" + algorithmSuiteName + "\" is not registered"
);
}
return algorithmSuite;
}
public QName[] getKnownElements() {
return new QName[]{SP11Constants.ALGORITHM_SUITE, SP12Constants.ALGORITHM_SUITE};
}
}