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/*
 * 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.
 */
package org.jclouds.date;

import java.util.Date;

import org.jclouds.date.internal.SimpleDateFormatDateService;

import com.google.inject.ImplementedBy;

/**
 * Parses and formats the ISO8601, C, and RFC822 date formats found in XML responses and HTTP
 * response headers.
 */
@ImplementedBy(SimpleDateFormatDateService.class)
public interface DateService {

   String cDateFormat(Date date);

   String cDateFormat();

   /**
    * @param toParse text to parse
    * @return parsed date
    * @throws IllegalArgumentException if the input is invalid
    */
   Date cDateParse(String toParse) throws IllegalArgumentException;

   String rfc822DateFormat(Date date);

   String rfc822DateFormat();
   
   /**
    * @param toParse text to parse
    * @return parsed date
    * @throws IllegalArgumentException if the input is invalid
    */
   Date rfc822DateParse(String toParse) throws IllegalArgumentException;
   
   String iso8601SecondsDateFormat(Date dateTime);

   String iso8601SecondsDateFormat();

   String iso8601DateFormat(Date date);

   String iso8601DateFormat();
   
   /**
    * @param toParse text to parse
    * @return parsed date
    * @throws IllegalArgumentException if the input is invalid
    */
   Date iso8601DateParse(String toParse) throws IllegalArgumentException;

   /**
    * @param toParse text to parse
    * @return parsed date
    * @throws IllegalArgumentException if the input is invalid
    */
   Date iso8601SecondsDateParse(String toParse) throws IllegalArgumentException;

   /**
    * Parse a given date in either of two iso8601 formats:
    * "yyyy-MM-dd'T'HH:mm:ssZ" or "yyyy-MM-dd'T'HH:mm:ss.SSSZ". The latter one
    * has the timezone designator, e.g. 2014-07-23T20:53:17+0000. At least one
    * S3 compatible blobstore uses both these formats when returning
    * container/object metadata.
    *
    * @param toParse
    *           The string to parse.
    * @return the Date object of the parsed string.
    * @throws IllegalArgumentException
    */
   Date iso8601DateOrSecondsDateParse(String toParse)
         throws IllegalArgumentException;

   String rfc1123DateFormat(Date date);

   String rfc1123DateFormat();

   /**
    * @param toParse text to parse
    * @return parsed date
    * @throws IllegalArgumentException if the input is invalid
    */
   Date rfc1123DateParse(String toParse) throws IllegalArgumentException;

}