content: /*
  * Conditions Of Use
  *
  * This software was developed by employees of the National Institute of
  * Standards and Technology (NIST), an agency of the Federal Government.
  * Pursuant to title 15 Untied States Code Section 105, works of NIST
  * employees are not subject to copyright protection in the United States
  * and are considered to be in the public domain.  As a result, a formal
  * license is not needed to use the software.
  *
  * This software is provided by NIST as a service and is expressly
  * provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
  * OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
  * AND DATA ACCURACY.  NIST does not warrant or make any representations
  * regarding the use of the software or the results thereof, including but
  * not limited to the correctness, accuracy, reliability or usefulness of
  * the software.
  *
  * Permission to use this software is contingent upon your acceptance
  * of the terms of this agreement.
  *
  */
  /*******************************************************************************
  * Product of NIST/ITL Advanced Networking Technologies Division (ANTD)         *
  *******************************************************************************/
  package gov2.nist.javax2.sip.header;
  
  import java.text.ParseException;
  
  import gov2.nist.javax2.sip.address.*;
  
  import javax2.sip.address.*;
  
  /**
   * AlertInfo SIP Header.
   *
   * @author M. Ranganathan   <br/>
   *
   * @since 1.1
   *
   * @version 1.2 $Revision: 1.8 $ $Date: 2009/07/17 18:57:25 $
   *
   *
   */
  public final class AlertInfo
      extends ParametersHeader
      implements javax2.sip.header.AlertInfoHeader {
  
      /**
       * Comment for <code>serialVersionUID</code>
       */
      private static final long serialVersionUID = 4159657362051508719L;
      /** URI field
       */
      protected GenericURI uri;
      /** String field
       */
      protected String string;
  
      /** Constructor
       */
      public AlertInfo() {
          super(NAME);
      }
  
      /**
       * Return value encoding in canonical form.
       * @return The value of the header in canonical encoding.
       */
      protected String encodeBody() {
          StringBuffer encoding = new StringBuffer();
          if (uri != null) {
              encoding.append(LESS_THAN).append(uri.encode()).append(GREATER_THAN);
          } else if (string != null) {
              encoding.append(string);
          }
          if (!parameters.isEmpty()) {
              encoding.append(SEMICOLON).append(parameters.encode());
          }
          return encoding.toString();
      }
  
      /**
       * Set the uri member
       * @param uri URI to set
       */
      public void setAlertInfo(URI uri) {
          this.uri = (GenericURI) uri;
      }
  
      /**
       * Set the string member
       * @param string String to set
       */
      public void setAlertInfo(String string) {
          this.string = string;
      }
  
      /**
       * Returns the AlertInfo value of this AlertInfoHeader.
       * @return the URI representing the AlertInfo.
       */
      public URI getAlertInfo() {
          URI alertInfoUri = null;
  
          if (this.uri != null) {
              alertInfoUri = (URI) this.uri;
          } else {
              try {
                  alertInfoUri = (URI) new GenericURI(string);
              } catch (ParseException e) {
                  ;  // Eat the exception.
              }
          }
  
          return alertInfoUri;
      }
  
      public Object clone() {
          AlertInfo retval = (AlertInfo) super.clone();
          if (this.uri != null) {
              retval.uri = (GenericURI) this.uri.clone();
          } else if (this.string != null) {
              retval.string = this.string;
          }
          return retval;
      }
  }
  