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 javax2.sip.InvalidArgumentException;
  
  /**
   * Accept header : The top level header is actually AcceptList which is a list of
   * Accept headers.
   *
   * @version 1.2 $Revision: 1.9 $ $Date: 2009/07/17 18:57:24 $
   *
   * @since 1.1
   *
   * @author M. Ranganathan   <br/>
   *
   *
   *
   */
  public final class Accept
      extends ParametersHeader
      implements javax2.sip.header.AcceptHeader {
  
      /**
       * Comment for <code>serialVersionUID</code>
       */
      private static final long serialVersionUID = -7866187924308658151L;
  
      /** mediaRange field
       */
      protected MediaRange mediaRange;
  
      /** default constructor
       */
      public Accept() {
          super(NAME);
      }
  
      /** returns true if this header allows all ContentTypes,
        * false otherwise.
        * @return Boolean
        */
      public boolean allowsAllContentTypes() {
          if (mediaRange == null)
              return false;
          else
              return mediaRange.type.compareTo(STAR) == 0;
      }
  
      /**
       * returns true if this header allows all ContentSubTypes,
       * false otherwise.
       * @return boolean
       */
      public boolean allowsAllContentSubTypes() {
          if (mediaRange == null) {
              return false;
          } else
              return mediaRange.getSubtype().compareTo(STAR) == 0;
      }
  
      /** Encode the value of this header into cannonical form.
      *@return encoded value of the header as a string.
      */
      protected String encodeBody() {
          return encodeBody(new StringBuffer()).toString();
      }
  
      protected StringBuffer encodeBody(StringBuffer buffer) {
          if (mediaRange != null)
              mediaRange.encode(buffer);
          if (parameters != null && !parameters.isEmpty()) {
              buffer.append(';');
              parameters.encode(buffer);
          }
          return buffer;
      }
  
      /** get the MediaRange field
       * @return MediaRange
       */
      public MediaRange getMediaRange() {
          return mediaRange;
      }
  
      /** get the contentType field
       * @return String
       */
      public String getContentType() {
          if (mediaRange == null)
              return null;
          else
              return mediaRange.getType();
      }
  
      /** get the ContentSubType fiels
       * @return String
       */
      public String getContentSubType() {
          if (mediaRange == null)
              return null;
          else
              return mediaRange.getSubtype();
      }
  
      /**
       * Get the q value.
       * @return float
       */
      public float getQValue() {
          return getParameterAsFloat(ParameterNames.Q);
      }
  
      /**
       * Return true if the q value has been set.
       * @return boolean
       */
      public boolean hasQValue() {
          return super.hasParameter(ParameterNames.Q);
  
      }
  
      /**
       *Remove the q value.
       */
      public void removeQValue() {
          super.removeParameter(ParameterNames.Q);
      }
  
      /** set the ContentSubType field
       * @param subtype String to set
       */
      public void setContentSubType(String subtype) {
          if (mediaRange == null)
              mediaRange = new MediaRange();
          mediaRange.setSubtype(subtype);
      }
  
      /** set the ContentType field
       * @param type String to set
       */
      public void setContentType(String type) {
          if (mediaRange == null)
              mediaRange = new MediaRange();
          mediaRange.setType(type);
      }
  
      /**
       * Set the q value
       * @param qValue float to set
       * @throws IllegalArgumentException if qValue is <0.0 or >1.0
       */
      public void setQValue(float qValue) throws InvalidArgumentException {
          if (qValue == -1)
              super.removeParameter(ParameterNames.Q);
          super.setParameter(ParameterNames.Q, qValue);
  
      }
  
      /**
           * Set the mediaRange member
           * @param m MediaRange field
           */
      public void setMediaRange(MediaRange m) {
          mediaRange = m;
      }
  
      public Object clone() {
          Accept retval = (Accept) super.clone();
          if (this.mediaRange != null)
              retval.mediaRange = (MediaRange) this.mediaRange.clone();
          return retval;
      }
  
  }
  