/* * ==================================================================== * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * . * */ package ch.boye.httpclientandroidlib; /** * One element of an HTTP {@link Header header} value consisting of * a name / value pair and a number of optional name / value parameters. *

* Some HTTP headers (such as the set-cookie header) have values that * can be decomposed into multiple elements. Such headers must be in the * following form: *

*
 * header  = [ element ] *( "," [ element ] )
 * element = name [ "=" [ value ] ] *( ";" [ param ] )
 * param   = name [ "=" [ value ] ]
 *
 * name    = token
 * value   = ( token | quoted-string )
 *
 * token         = 1*<any char except "=", ",", ";", <"> and
 *                       white space>
 * quoted-string = <"> *( text | quoted-char ) <">
 * text          = any char except <">
 * quoted-char   = "\" char
 * 
*

* Any amount of white space is allowed between any part of the * header, element or param and is ignored. A missing value in any * element or param will be stored as the empty {@link String}; * if the "=" is also missing null will be stored instead. * * @since 4.0 */ public interface HeaderElement { /** * Returns header element name. * * @return header element name */ String getName(); /** * Returns header element value. * * @return header element value */ String getValue(); /** * Returns an array of name / value pairs. * * @return array of name / value pairs */ NameValuePair[] getParameters(); /** * Returns the first parameter with the given name. * * @param name parameter name * * @return name / value pair */ NameValuePair getParameterByName(String name); /** * Returns the total count of parameters. * * @return parameter count */ int getParameterCount(); /** * Returns parameter with the given index. * * @param index * @return name / value pair */ NameValuePair getParameter(int index); }