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Java example source code file (CookieSpec.java)

This example source code file (CookieSpec.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

cookieorigin, cookiespec, header, list, malformedcookieexception, util

The CookieSpec.java example source code

/*
 * ====================================================================
 * 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
 * <http://www.apache.org/>.
 *
 */

package org.apache.http.cookie;

import java.util.List;

import org.apache.http.Header;

/**
 * Defines the cookie management specification.
 * <p>Cookie management specification must define
 * <ul>
 *   <li> rules of parsing "Set-Cookie" header
 *   <li> rules of validation of parsed cookies
 *   <li>  formatting of "Cookie" header 
 * </ul>
 * for a given host, port and path of origin
 * 
 *
 * @since 4.0
 */
public interface CookieSpec {    

    /**
     * Returns version of the state management this cookie specification
     * conforms to.
     * 
     * @return version of the state management specification
     */
    int getVersion();
    
    /**
      * Parse the <tt>"Set-Cookie" Header into an array of Cookies.
      *
      * <p>This method will not perform the validation of the resultant
      * {@link Cookie}s</p> 
      *
      * @see #validate
      *
      * @param header the <tt>Set-Cookie received from the server
      * @param origin details of the cookie origin
      * @return an array of <tt>Cookies parsed from the header
      * @throws MalformedCookieException if an exception occurs during parsing
      */
    List<Cookie> parse(Header header, CookieOrigin origin) throws MalformedCookieException;

    /**
      * Validate the cookie according to validation rules defined by the 
      *  cookie specification.
      *
      * @param cookie the Cookie to validate
      * @param origin details of the cookie origin
      * @throws MalformedCookieException if the cookie is invalid
      */
    void validate(Cookie cookie, CookieOrigin origin) throws MalformedCookieException;
    
    /**
     * Determines if a Cookie matches the target location.
     *
     * @param cookie the Cookie to be matched
     * @param origin the target to test against
     * 
     * @return <tt>true if the cookie should be submitted with a request 
     *  with given attributes, <tt>false otherwise.
     */
    boolean match(Cookie cookie, CookieOrigin origin);

    /**
     * Create <tt>"Cookie" headers for an array of Cookies.
     *
     * @param cookies the Cookies format into a Cookie header
     * @return a Header for the given Cookies.
     * @throws IllegalArgumentException if an input parameter is illegal
     */
    List<Header> formatCookies(List cookies);

    /**
     * Returns a request header identifying what version of the state management 
     * specification is understood. May be <code>null if the cookie 
     * specification does not support <tt>Cookie2 header.
     */
    Header getVersionHeader();
    
}

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