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.model;
  
  import javax.xml.namespace.QName;
  import javax.xml.stream.XMLStreamException;
  import javax.xml.stream.XMLStreamWriter;
  
  import org.w3c.dom.Element;
  
  import org.apache.cxf.staxutils.StaxUtils;
  import org.apache.cxf.ws.security.policy.SP12Constants;
  import org.apache.cxf.ws.security.policy.SPConstants;
  
  /**
   * Model class for SpnegoContextToken
   */
  public class SpnegoContextToken extends Token {
      
      private Element issuerEpr;
      
      public SpnegoContextToken(SPConstants version) {
          super(version);
      }
      
      public QName getName() {
          return SP12Constants.INSTANCE.getSpnegoContextToken();
      }
      
      /**
       * @return Returns the issuerEpr.
       */
      public Element getIssuerEpr() {
          return issuerEpr;
      }
  
      /**
       * @param issuerEpr The issuerEpr to set.
       */
      public void setIssuerEpr(Element issuerEpr) {
          this.issuerEpr = issuerEpr;
      }
  
      
      public void serialize(XMLStreamWriter writer) throws XMLStreamException {
          QName name = constants.getSpnegoContextToken();
          String localname = name.getLocalPart();
          String namespaceURI = name.getNamespaceURI();
          String prefix;
  
          String writerPrefix = writer.getPrefix(namespaceURI);
  
          if (writerPrefix == null) {
              prefix = name.getPrefix();
              writer.setPrefix(prefix, namespaceURI);
          } else {
              prefix = writerPrefix;
          }
  
          // <sp:SpnegoContextToken>
          writer.writeStartElement(prefix, localname, namespaceURI);
  
          if (writerPrefix == null) {
              // xmlns:sp=".."
              writer.writeNamespace(prefix, namespaceURI);
          }
  
          String inclusion;
  
          inclusion = constants.getAttributeValueFromInclusion(getInclusion());
  
          if (inclusion != null) {
              writer.writeAttribute(prefix, namespaceURI, SPConstants.ATTR_INCLUDE_TOKEN, inclusion);
          }
  
          if (issuerEpr != null) {
              // <sp:Issuer>
              writer.writeStartElement(prefix, SPConstants.ISSUER, namespaceURI);
  
              StaxUtils.copy(issuerEpr, writer);
  
              writer.writeEndElement();
          }
  
          if (isDerivedKeys()) {
  
              String wspNamespaceURI = SPConstants.POLICY.getNamespaceURI();
  
              String wspPrefix;
  
              String wspWriterPrefix = writer.getPrefix(wspNamespaceURI);
  
              if (wspWriterPrefix == null) {
                  wspPrefix = SPConstants.POLICY.getPrefix();
                  writer.setPrefix(wspPrefix, wspNamespaceURI);
  
              } else {
                  wspPrefix = wspWriterPrefix;
              }
  
              // <wsp:Policy>
              writer.writeStartElement(wspPrefix, SPConstants.POLICY.getLocalPart(), wspNamespaceURI);
  
              if (wspWriterPrefix == null) {
                  // xmlns:wsp=".."
                  writer.writeNamespace(wspPrefix, wspNamespaceURI);
              }
  
              if (isDerivedKeys()) {
                  // <sp:RequireDerivedKeys />
                  writer.writeEmptyElement(prefix, SPConstants.REQUIRE_DERIVED_KEYS, namespaceURI);
              }
  
              // </wsp:Policy>
              writer.writeEndElement();
          }
  
          // </sp:SpnegoContextToken>
          writer.writeEndElement();
      }
      
      
  }
  