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/**
* @file llmediaimplfactory.h
* @brief Creates media impls that have registered themselves with LLMediaRegster
*
* $LicenseInfo:firstyear=2007&license=viewergpl$
*
* Copyright (c) 2007-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LLMEDIAIMPLFACTORY_H
#define LLMEDIAIMPLFACTORY_H
#include <algorithm>
#include <map>
#include <string>
#include <vector>
#include "llmediabase.h"
///////////////////////////////////////////////////////////////////////////////
//
class LLMediaImplMakerBase
{
public:
virtual bool supportsScheme(std::string scheme) = 0;
virtual bool supportsMimeType(std::string type) = 0;
virtual bool supportsMimeTypeCategory(std::string category) = 0;
virtual LLMediaBase* create() = 0;
virtual ~LLMediaImplMakerBase() {};
protected:
typedef std::vector <std::string> vector_impl_registry_t;
vector_impl_registry_t mSchema;
vector_impl_registry_t mMimeTypes;
vector_impl_registry_t mMimeTypeCategories;
};
///////////////////////////////////////////////////////////////////////////////
//
class LLMediaImplMaker : public LLMediaImplMakerBase
{
public:
bool supportsScheme(std::string scheme)
{
vector_impl_registry_t::iterator found = std::find(mSchema.begin(), mSchema.end(), scheme);
return found != mSchema.end();
}
bool supportsMimeType(std::string type)
{
vector_impl_registry_t::iterator found = std::find(mMimeTypes.begin(), mMimeTypes.end(), type);
return found != mMimeTypes.end();
}
bool supportsMimeTypeCategory(std::string category)
{
vector_impl_registry_t::iterator found = std::find(mMimeTypeCategories.begin(), mMimeTypeCategories.end(), category);
return found != mMimeTypeCategories.end();
}
};
///////////////////////////////////////////////////////////////////////////////
//
class LLMediaImplFactory
{
public:
static LLMediaImplFactory* getInstance();
void registerImpl( const std::string& impl_name, LLMediaImplMakerBase* impl_maker );
LLMediaImplMakerBase* getImplMaker( const std::string& scheme, const std::string& type );
LLMediaImplMakerBase* getImplMaker( const std::string& impl_name);
private:
typedef std::map< std::string, LLMediaImplMakerBase* > name_impl_maker_container_t;
name_impl_maker_container_t mNameImplMakerContainer;
static LLMediaImplFactory* sInstance;
};
#endif // LLMEDIAIMPLFACTORY_H
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