/*
 * Copyright 2009-2017 Alibaba Cloud All rights reserved.
 * 
 * Licensed 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.
 */


#pragma once

#include <string>
#include <map>
#include <ctime>
#include <iostream>
#include <alibabacloud/oss/Types.h>

namespace AlibabaCloud
{
namespace OSS
{
    class SignUtils
    {
    public: 
        SignUtils(const std::string &version);
        ~SignUtils();
        void build(const std::string &method,
                   const std::string &resource,
                   const std::string &date,
                   const HeaderCollection &headers,
                   const ParameterCollection &parameters);
        void build(const std::string &expires,
                    const std::string &resource,
                    const ParameterCollection &parameters);
        const std::string &CanonicalString() const;
    private:
        std::string signVersion_;
        std::string canonicalString_;
    };
}
}