/*
 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
 * Copyright (C) 2009 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#ifndef HTTPHeaderMap_h
#define HTTPHeaderMap_h

#include <utility>
#include <wtf/HashMap.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/Vector.h>
#include <wtf/text/AtomicString.h>
#include <wtf/text/AtomicStringHash.h>
#include <wtf/text/StringHash.h>

namespace WebCore {

    typedef Vector<std::pair<String, String> > CrossThreadHTTPHeaderMapData;

    // FIXME: Not every header fits into a map. Notably, multiple Set-Cookie header fields are needed to set multiple cookies.
    class HTTPHeaderMap : public HashMap<AtomicString, String, CaseFoldingHash> {
    public:
        HTTPHeaderMap();
        ~HTTPHeaderMap();

        // Gets a copy of the data suitable for passing to another thread.
        PassOwnPtr<CrossThreadHTTPHeaderMapData> copyData() const;

        void adopt(PassOwnPtr<CrossThreadHTTPHeaderMapData>);
        
        String get(const AtomicString& name) const;

        AddResult add(const AtomicString& name, const String& value);

        // Alternate accessors that are faster than converting the char* to AtomicString first.
        bool contains(const char*) const;
        String get(const char*) const;
        AddResult add(const char* name, const String& value);
        
    };

} // namespace WebCore

#endif // HTTPHeaderMap_h
