genesis-3d_engine/Engine/foundation/io/mediatype.h

/****************************************************************************
Copyright (c) 2006, Radon Labs GmbH
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
http://www.genesis-3d.com.cn

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The above copyright notice and this permission notice shall be included in
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****************************************************************************/
#pragma once
//------------------------------------------------------------------------------
/**
    @class IO::MediaType
  
    Encapsulates a MIME conformant media type description (text/plain, 
    image/jpg, etc...).
*/    
#include "util/string.h"

//------------------------------------------------------------------------------
namespace IO
{
class MediaType
{
public:
    /// constructor
    MediaType();
    /// init constructor from string
    MediaType(const Util::String& str);
    /// init constructor from type and subtype
    MediaType(const Util::String& type, const Util::String& subType);
    /// copy constructor
    MediaType(const MediaType& rhs);

    /// assignment operator
    void operator=(const MediaType& rhs);
    /// equality operator
    bool operator==(const MediaType& rhs);
    /// inequality operator
    bool operator!=(const MediaType& rhs);

    /// return true if not empty
    bool IsValid() const;
    /// clear the media type object
    void Clear();
    /// set as string (must be of the form "xxx/yyy")
    void Set(const Util::String& str);
    /// set as type and subtype
    void Set(const Util::String& type, const Util::String& subType);
    /// return as string
    Util::String AsString() const;
    /// get type
    const Util::String& GetType() const;
    /// get subtype
    const Util::String& GetSubType() const;

private:
    Util::String type;
    Util::String subType;
};

//------------------------------------------------------------------------------
/**
*/
inline
MediaType::MediaType()
{
    // empty
}

//------------------------------------------------------------------------------
/**
*/
inline
void
MediaType::Set(const Util::String& str)
{
    n_assert(str.IsValid());
    Util::Array<Util::String> tokens = str.Tokenize("/");
    n_assert(tokens.Size() == 2);
    this->type = tokens[0];
    this->subType = tokens[1];
}

//------------------------------------------------------------------------------
/**
*/
inline
MediaType::MediaType(const Util::String& str)
{
    this->Set(str);
}

//------------------------------------------------------------------------------
/**
*/
inline
MediaType::MediaType(const Util::String& t, const Util::String& s) :
    type(t),
    subType(s)
{
    n_assert(this->type.IsValid());
    n_assert(this->subType.IsValid());
}

//------------------------------------------------------------------------------
/**
*/
inline
MediaType::MediaType(const MediaType& rhs) :
    type(rhs.type),
    subType(rhs.subType)
{
    // empty
}

//------------------------------------------------------------------------------
/**
*/
inline
void
MediaType::operator=(const MediaType& rhs)
{
    this->type = rhs.type;
    this->subType = rhs.subType;
}

//------------------------------------------------------------------------------
/**
*/
inline bool
MediaType::operator==(const MediaType& rhs)
{
    return ((this->type == rhs.type) && (this->subType == rhs.subType));
}

//------------------------------------------------------------------------------
/**
*/
inline bool
MediaType::operator!=(const MediaType& rhs)
{
    return !(*this == rhs);
}

//------------------------------------------------------------------------------
/**
*/
inline void
MediaType::Set(const Util::String& t, const Util::String& s)
{
    n_assert(t.IsValid() && s.IsValid());
    this->type = t;
    this->subType = s;
}

//------------------------------------------------------------------------------
/**
*/
inline Util::String
MediaType::AsString() const
{
    Util::String str;
    str.Reserve(128);
    str = this->type;
    str.Append("/");
    str.Append(this->subType);
    return str;
}

//------------------------------------------------------------------------------
/**
*/
inline const Util::String&
MediaType::GetType() const
{
    return this->type;
}

//------------------------------------------------------------------------------
/**
*/
inline const Util::String&
MediaType::GetSubType() const
{
    return this->subType;
}

//------------------------------------------------------------------------------
/**
*/
inline bool
MediaType::IsValid() const
{
    return this->type.IsValid() && this->subType.IsValid();
}

//------------------------------------------------------------------------------
/**
*/
inline void
MediaType::Clear()
{
    this->type.Clear();
    this->subType.Clear();
}

} // namespace IO
//------------------------------------------------------------------------------