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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 android.gov.nist.javax.sip.header;

import android.javax.sip.InvalidArgumentException;
import android.javax.sip.header.*;
import java.text.ParseException;

/**
 * Accept-Encoding SIP (HTTP) Header.
 *
 * @author M. Ranganathan
 * @author Olivier Deruelle 
* @version 1.2 $Revision: 1.8 $ $Date: 2010-05-06 14:07:54 $ * @since 1.1 * *
 *  From HTTP RFC 2616
 *
 *
 *    The Accept-Encoding request-header field is similar to Accept, but
 *    restricts the content-codings (section 3.5) that are acceptable in
 *    the response.
 *
 *
 *        Accept-Encoding  = "Accept-Encoding" ":"
 *
 *
 *                           1#( codings [ ";" "q" "=" qvalue ] )
 *        codings          = ( content-coding | "*" )
 *
 *    Examples of its use are:
 *
 *        Accept-Encoding: compress, gzip
 *        Accept-Encoding:
 *        Accept-Encoding: *
 *        Accept-Encoding: compress;q=0.5, gzip;q=1.0
 *        Accept-Encoding: gzip;q=1.0, identity; q=0.5, *;q=0
 * 
* */ public final class AcceptEncoding extends ParametersHeader implements AcceptEncodingHeader { /** * Comment for serialVersionUID */ private static final long serialVersionUID = -1476807565552873525L; /** * contentEncoding field */ protected String contentCoding; /** * default constructor */ public AcceptEncoding() { super(NAME); } /** * Encode the value of this header. * * @return the value of this header encoded into a string. */ protected String encodeBody() { return encode(new StringBuilder()).toString(); } protected StringBuilder encodeBody(StringBuilder buffer) { if (contentCoding != null) { buffer.append(contentCoding); } if (parameters != null && !parameters.isEmpty()) { buffer.append(SEMICOLON).append(parameters.encode()); } return buffer; } /** * get QValue field * * @return float */ public float getQValue() { return getParameterAsFloat("q"); } /** * get ContentEncoding field * * @return String */ public String getEncoding() { return contentCoding; } /** * Set the qvalue member * * @param q * double to set */ public void setQValue(float q) throws InvalidArgumentException { if (q < 0.0 || q > 1.0) throw new InvalidArgumentException("qvalue out of range!"); super.setParameter("q", q); } /** * Sets the encoding of an EncodingHeader. * * @param encoding - * the new string value defining the encoding. * @throws ParseException * which signals that an error has been reached unexpectedly * while parsing the encoding value. */ public void setEncoding(String encoding) throws ParseException { if (encoding == null) throw new NullPointerException(" encoding parameter is null"); contentCoding = encoding; } }




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