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 gov2.nist.javax2.sip.address.*;
  
  import java.text.ParseException;
  
  /**
   * CallInfo SIPHeader.
   *
   *
   * @author "M. Ranganathan"  <br/>
   * @version 1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:57:28 $
   * @since 1.1
   */
  public final class CallInfo
      extends ParametersHeader
      implements javax2.sip.header.CallInfoHeader {
  
      /**
       * Comment for <code>serialVersionUID</code>
       */
      private static final long serialVersionUID = -8179246487696752928L;
  
      protected GenericURI info;
  
      /**
       * Default constructor
       */
      public CallInfo() {
          super(CALL_INFO);
      }
  
      /**
       * Return canonical representation.
       * @return String
       */
      public String encodeBody() {
          return encodeBody(new StringBuffer()).toString();
      }
  
      protected StringBuffer encodeBody(StringBuffer buffer) {
          buffer.append(LESS_THAN);
          info.encode(buffer);
          buffer.append(GREATER_THAN);
  
          if (parameters != null && !parameters.isEmpty()) {
              buffer.append(SEMICOLON);
              parameters.encode(buffer);
          }
  
          return buffer;
      }
  
      /**
       * get the purpose field
       * @return String
       */
      public String getPurpose() {
          return this.getParameter("purpose");
      }
  
      /**
       * get the URI field
       * @return URI
       */
      public javax2.sip.address.URI getInfo() {
          return info;
      }
  
      /**
       * set the purpose field
       * @param purpose is the purpose field.
       */
      public void setPurpose(String purpose) {
          if (purpose == null)
              throw new NullPointerException("null arg");
          try {
              this.setParameter("purpose", purpose);
          } catch (ParseException ex) {
          }
      }
  
      /**
       * set the URI field
       * @param info is the URI to set.
       */
      public void setInfo(javax2.sip.address.URI info) {
          this.info = (GenericURI) info;
      }
  
      public Object clone() {
          CallInfo retval = (CallInfo) super.clone();
          if (this.info != null)
              retval.info = (GenericURI) this.info.clone();
          return retval;
      }
  }
  