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.w3c.dom.Node;
  import org.w3c.dom.NodeList;
  
  import org.apache.cxf.ws.policy.PolicyBuilder;
  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.SP13Constants;
  import org.apache.cxf.ws.security.policy.SPConstants;
  import org.apache.cxf.ws.security.policy.model.UsernameToken;
  import org.apache.neethi.Assertion;
  import org.apache.neethi.AssertionBuilderFactory;
  import org.apache.neethi.builders.AssertionBuilder;
  
  
  public class UsernameTokenBuilder implements AssertionBuilder<Element> {
  
      PolicyBuilder builder;
      public UsernameTokenBuilder(PolicyBuilder b) {
          builder = b;
      }
      
      public Assertion build(Element element, AssertionBuilderFactory factory) {
          
          SPConstants consts = SP11Constants.SP_NS.equals(element.getNamespaceURI())
              ? SP11Constants.INSTANCE : SP12Constants.INSTANCE;
  
          UsernameToken usernameToken = new UsernameToken(consts);
          usernameToken.setOptional(PolicyConstants.isOptional(element));
          usernameToken.setIgnorable(PolicyConstants.isIgnorable(element));
  
          String attribute = element.getAttributeNS(element.getNamespaceURI(), SPConstants.ATTR_INCLUDE_TOKEN);
          if (attribute != null) {
              usernameToken.setInclusion(consts.getInclusionFromAttributeValue(attribute));
          }
  
          Element polEl = PolicyConstants.findPolicyElement(element);
          if (polEl == null && consts != SP11Constants.INSTANCE) {
              throw new IllegalArgumentException(
                  "sp:UsernameToken/wsp:Policy must have a value"
              );
          }
          if (polEl != null) {
              NodeList children = polEl.getChildNodes();
              if (children != null) {
                  for (int i = 0; i < children.getLength(); i++) {
                      Node child = children.item(i);
                      if (child instanceof Element) {
                          QName qname = new QName(child.getNamespaceURI(), child.getLocalName());
                          if (SPConstants.USERNAME_TOKEN10.equals(qname.getLocalPart())) {
                              usernameToken.setUseUTProfile10(true);
                          } else if (SPConstants.USERNAME_TOKEN11.equals(qname.getLocalPart())) {
                              usernameToken.setUseUTProfile11(true);
                          } else if (SP12Constants.NO_PASSWORD.equals(qname)) {
                              usernameToken.setNoPassword(true);
                          } else if (SP12Constants.HASH_PASSWORD.equals(qname)) {
                              usernameToken.setHashPassword(true);
                          } else if (SP12Constants.REQUIRE_DERIVED_KEYS.equals(qname)) {
                              usernameToken.setDerivedKeys(true);
                          } else if (SP12Constants.REQUIRE_EXPLICIT_DERIVED_KEYS.equals(qname)) {
                              usernameToken.setExplicitDerivedKeys(true);
                          } else if (SP12Constants.REQUIRE_IMPLIED_DERIVED_KEYS.equals(qname)) {
                              usernameToken.setImpliedDerivedKeys(true);
                          } else if (SP13Constants.USERNAME_TOKEN_CREATED.equals(qname)) {
                              usernameToken.setRequireCreated(true);
                          } else if (SP13Constants.USERNAME_TOKEN_NONCE.equals(qname)) {
                              usernameToken.setRequireNonce(true);
                          }
                      }
                  }
              }
          }
          return usernameToken;
      }
  
      public QName[] getKnownElements() {
          return new QName[]{SP11Constants.USERNAME_TOKEN, SP12Constants.USERNAME_TOKEN};
      }
  }
  