108 lines
3.0 KiB
C++
108 lines
3.0 KiB
C++
/**
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* @file llsdparam.h
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* @brief parameter block abstraction for creating complex objects and
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* parsing construction parameters from xml and LLSD
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*
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* $LicenseInfo:firstyear=2008&license=viewergpl$
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*
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* Copyright (c) 2008-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_LLSDPARAM_H
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#define LL_LLSDPARAM_H
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#include "llinitparam.h"
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class LLParamSDParser
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: public LLInitParam::Parser,
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public LLSingleton<LLParamSDParser>
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{
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LOG_CLASS(LLParamSDParser);
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typedef LLInitParam::Parser parser_t;
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protected:
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LLParamSDParser();
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friend class LLSingleton<LLParamSDParser>;
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public:
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void readSD(const LLSD& sd, LLInitParam::BaseBlock& block, bool silent = false);
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void writeSD(LLSD& sd, const LLInitParam::BaseBlock& block);
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/*virtual*/ std::string getCurrentElementName();
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private:
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void readSDValues(const LLSD& sd, LLInitParam::BaseBlock& block);
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template<typename T>
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bool readTypedValue(void* val_ptr, boost::function<T(const LLSD&)> parser_func)
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{
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if (!mCurReadSD) return false;
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*((T*)val_ptr) = parser_func(*mCurReadSD);
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return true;
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}
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template<typename T>
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bool writeTypedValue(const void* val_ptr, const parser_t::name_stack_t& name_stack)
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{
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if (!mWriteSD) return false;
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LLSD* sd_to_write = getSDWriteNode(name_stack);
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if (!sd_to_write) return false;
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sd_to_write->assign(*((const T*)val_ptr));
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return true;
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}
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LLSD* getSDWriteNode(const parser_t::name_stack_t& name_stack);
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bool readSDParam(void* value_ptr);
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bool writeU32Param(const void* value_ptr, const parser_t::name_stack_t& name_stack);
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Parser::name_stack_t mNameStack;
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const LLSD* mCurReadSD;
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LLSD* mWriteSD;
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};
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template<typename T>
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class LLSDParamAdapter : public T
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{
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public:
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LLSDParamAdapter() {}
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LLSDParamAdapter(const LLSD& sd)
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{
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LLParamSDParser::instance().readSD(sd, *this);
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}
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LLSDParamAdapter(const T& val)
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{
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T::operator=(val);
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}
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};
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#endif // LL_LLSDPARAM_H
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