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  /*
  * 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 gov.nist.javax.sip.header;

Root class from which all SIPHeader objects are subclassed.

Author(s):
M. Ranganathan
Version:
1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:57:37 $
 
 public abstract class SIPHeader
     extends SIPObject
     implements SIPHeaderNamesjavax.sip.header.HeaderHeaderExt {

    
name of this header
 
     protected String headerName;

    
Value of the header.
 

    
Constructor

Parameters:
hname String to set
 
     protected SIPHeader(String hname) {
          = hname;
     }

    
Default constructor
 
     public SIPHeader() {
     }

    
Name of the SIPHeader

Returns:
String
 
     public String getHeaderName() {
         return ;
     }

    
Alias for getHaderName above.

Returns:
String headerName
 
     public String getName() {
         return this.;
     }

    
Set the name of the header .

Parameters:
hdrname String to set
 
     public void setHeaderName(String hdrname) {
          = hdrname;
     }

    
Get the header value (i.e. what follows the name:). This merely goes through and lops off the portion that follows the headerName:
 
     public String getHeaderValue() {
         String encodedHdr = null;
         try {
             encodedHdr = this.encode();
         } catch (Exception ex) {
             return null;
         }
         StringBuffer buffer = new StringBuffer(encodedHdr);
         while (buffer.length() > 0 && buffer.charAt(0) != ':') {
            buffer.deleteCharAt(0);
        }
        if (buffer.length() > 0)
            buffer.deleteCharAt(0);
        return buffer.toString().trim();
    }

    
Return false if this is not a header list (SIPHeaderList overrrides this method).

Returns:
false
    public boolean isHeaderList() {
        return false;
    }

    
Encode this header into canonical form.
    public String encode() {
        return encode(new StringBuffer()).toString();
    }
    public StringBuffer encode(StringBuffer buffer) {
        buffer.append(this.).append().append();
        this.encodeBody(buffer);
        buffer.append();
        return buffer;
    }

    
Encode the body of this header (the stuff that follows headerName). A.K.A headerValue.
    protected abstract String encodeBody();

    
Encode the body of this header in the given buffer. Default implementation calls encodeBody();
    protected StringBuffer encodeBody(StringBuffer buffer) {
        return buffer.append(encodeBody());
    }

    
Alias for getHeaderValue.
    public String getValue() {
        return this.getHeaderValue();
    }

    
This is a pretty simple hashCode but satisfies requirements.
    public int hashCode() {
        return this..hashCode();
    }
    public final String toString() {
        return this.encode();
    }
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