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/*
* Copyright (c) 2009-2020, Albertas Vyšniauskas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the software author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER 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.
*/
#include "Binary.h"
#include "Map.h"
#include "Types.h"
#include "Variable.h"
namespace dynv {
namespace binary {
using ValueType = types::ValueType;
struct SerializeVisitor: public boost::static_visitor<bool> {
SerializeVisitor(std::ostream &stream, const std::string &name, const std::unordered_map<types::ValueType, uint8_t> &typeMap):
stream(stream),
name(name),
typeMap(typeMap) {
}
template<typename T>
bool operator()(const T &value) const {
using namespace types::binary;
auto i = typeMap.find(dynv::types::typeHandler<T>().type);
if (i == typeMap.end())
return true;
if (!write(stream, i->second))
return false;
if (!write(stream, name))
return false;
if (!write(stream, value))
return false;
return true;
}
bool operator()(const Ref &value) const {
return true; // skip unsupported value type for binary serialization
}
template<typename T>
bool operator()(const std::vector<T> &values) const {
return true; // skip unsupported value type for binary serialization
}
std::ostream &stream;
const std::string &name;
const std::unordered_map<types::ValueType, uint8_t> &typeMap;
};
bool serialize(std::ostream &stream, const Map &map, const std::unordered_map<types::ValueType, uint8_t> &typeMap, bool firstLevel) {
using namespace types::binary;
if (!write(stream, static_cast<uint32_t>(map.size())))
return false;
auto visitor = [&stream, &typeMap](const Variable &value) -> bool {
if (!boost::apply_visitor(SerializeVisitor(stream, value.name(), typeMap), value.data()))
return false;
return true;
};
if (!map.visit(visitor))
return false;
return true;
}
bool deserialize(std::istream &stream, Map &map, const std::unordered_map<uint8_t, ValueType> &typeMap) {
using namespace types::binary;
uint32_t count = read<uint32_t>(stream);
if (!stream.good())
return false;
for (uint32_t i = 0; i < count; i++) {
uint8_t handlerId = read<uint8_t>(stream);
if (!stream.good())
return false;
std::string name = read<std::string>(stream);
if (!stream.good())
return false;
auto type = typeMap.find(handlerId);
if (type == typeMap.end()) {
auto skip = read<uint32_t>(stream);
if (!stream.good())
return false;
stream.seekg(skip, std::ios::cur);
continue;
}
switch (type->second) {
case ValueType::basicBool: {
auto value = read<uint8_t>(stream);
if (!stream.good())
return false;
map.set<bool>(name, value);
} break;
case ValueType::basicFloat: {
auto value = read<float>(stream);
if (!stream.good())
return false;
map.set(name, value);
} break;
case ValueType::basicInt32: {
auto value = read<int32_t>(stream);
if (!stream.good())
return false;
map.set(name, value);
} break;
case ValueType::string: {
auto value = read<std::string>(stream);
if (!stream.good())
return false;
map.set(name, value);
} break;
case ValueType::color: {
auto value = read<Color>(stream);
if (!stream.good())
return false;
map.set(name, value);
} break;
case ValueType::map:
case ValueType::unknown:
return false;
}
}
return true;
}
}
}
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