/*
 * $HeadURL: https://svn.apache.org/repos/asf/httpcomponents/httpclient/tags/4.0-beta1/module-client/src/main/java/org/apache/http/impl/cookie/DateUtils.java $
 * $Revision: 677240 $
 * $Date: 2008-07-16 13:25:47 +0200 (Wed, 16 Jul 2008) $
 *
 * ====================================================================
 * 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.impl.cookie;

/**
 * A utility class for parsing and formatting HTTP dates as used in cookies and 
 * other headers.  This class handles dates as defined by RFC 2616 section 
 * 3.3.1 as well as some other common non-standard formats.
 * 
 * @author Christopher Brown
 * @author Michael Becke
 *
 * Shortened by Oliver Kopp to contain DEFAULT_PATTERNS and related artifacts only.
 */
public final class DateUtils {

    /**
     * Date format pattern used to parse HTTP date headers in RFC 1123 format.
     */
    public static final String PATTERN_RFC1123 = "EEE, dd MMM yyyy HH:mm:ss zzz";

    /**
     * Date format pattern used to parse HTTP date headers in RFC 1036 format.
     */
    public static final String PATTERN_RFC1036 = "EEEE, dd-MMM-yy HH:mm:ss zzz";

    /**
     * Date format pattern used to parse HTTP date headers in ANSI C 
     * <code>asctime()</code> format.
     */
    public static final String PATTERN_ASCTIME = "EEE MMM d HH:mm:ss yyyy";

    public static final String[] DEFAULT_PATTERNS = new String[] {
    	PATTERN_RFC1036,
    	PATTERN_RFC1123,
        PATTERN_ASCTIME
    };

}