code: /**
   * 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.helpers.DOMUtils;
  import org.apache.cxf.ws.policy.PolicyConstants;
  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.model.Wss10;
  import org.apache.neethi.Assertion;
  import org.apache.neethi.AssertionBuilderFactory;
  import org.apache.neethi.builders.AssertionBuilder;
  
  
  public class WSS10Builder implements AssertionBuilder<Element> {
      
      public WSS10Builder() {
      }
      public QName[] getKnownElements() {
          return new QName[]{SP11Constants.WSS10, SP12Constants.WSS10};
      }
      public Assertion build(Element element, AssertionBuilderFactory factory)
          throws IllegalArgumentException {
  
          SPConstants consts = SP11Constants.SP_NS.equals(element.getNamespaceURI())
              ? SP11Constants.INSTANCE : SP12Constants.INSTANCE;
          
          Wss10 wss10 = new Wss10(consts);
          processAlternative(element, wss10, consts);
          return wss10;
      }
  
      private void processAlternative(Element element, Wss10 parent, SPConstants consts) {
          Element polEl = PolicyConstants.findPolicyElement(element);
          if (polEl != null) {
              Element child = DOMUtils.getFirstElement(polEl);
              while (child != null) {
                  String name = child.getLocalName();
                  if (SPConstants.MUST_SUPPORT_REF_KEY_IDENTIFIER.equals(name)) {
                      parent.setMustSupportRefKeyIdentifier(true);
                  } else if (SPConstants.MUST_SUPPORT_REF_ISSUER_SERIAL.equals(name)) {
                      parent.setMustSupportRefIssuerSerial(true);
                  } else if (SPConstants.MUST_SUPPORT_REF_EXTERNAL_URI.equals(name)) {
                      parent.setMustSupportRefExternalURI(true);
                  } else if (SPConstants.MUST_SUPPORT_REF_EMBEDDED_TOKEN.equals(name)) {
                      parent.setMustSupportRefEmbeddedToken(true);
                  } 
                  child = DOMUtils.getNextElement(child);
              }
          }
      }
  }
  