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f1504d851a
Refined an intrusive example. It includes base class serialization. We can switch map based and array based serialization.
111 lines
3.2 KiB
C++
111 lines
3.2 KiB
C++
// MessagePack for C++ example
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//
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// Copyright (C) 2008-2015 FURUHASHI Sadayuki and KONDO Takatoshi
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include <string>
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#include <iostream>
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#include <iomanip>
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#include <sstream>
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#include <cassert>
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#if 0 // When you want to adapt map instead of array, you can enable these macro definition.
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#define MSGPACK_USE_DEFINE_MAP
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#define MSGPACK_USE_BOOST
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#endif
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#include <msgpack.hpp>
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struct my_base1 {
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int a;
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MSGPACK_DEFINE(a);
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};
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inline bool operator==(my_base1 const& lhs, my_base1 const& rhs) {
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return lhs.a == rhs.a;
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}
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struct my_base2 {
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std::string b;
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std::string c;
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MSGPACK_DEFINE(b, c);
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};
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inline bool operator==(my_base2 const& lhs, my_base2 const& rhs) {
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return lhs.b == rhs.b && lhs.c == rhs.c;
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}
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class my_class : public my_base1, private my_base2 {
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public:
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my_class() {} // When you want to convert from msgpack::object to my_class,
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// my_class should be default constractible.
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my_class(std::string const& name, int age):name_(name), age_(age) {}
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void set_b(std::string const& str) { b = str; }
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void set_c(std::string const& str) { c = str; }
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friend bool operator==(my_class const& lhs, my_class const& rhs) {
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return
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static_cast<my_base1 const&>(lhs) == static_cast<my_base1 const&>(rhs) &&
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static_cast<my_base2 const&>(lhs) == static_cast<my_base2 const&>(rhs) &&
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lhs.name_ == rhs.name_ && lhs.age_ == rhs.age_;
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}
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private:
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std::string name_;
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int age_;
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public:
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MSGPACK_DEFINE(name_, age_, MSGPACK_BASE(my_base1), MSGPACK_BASE(my_base2));
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};
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void print(std::string const& buf) {
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for (std::string::const_iterator it = buf.begin(), end = buf.end();
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it != end;
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++it) {
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std::cout
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<< std::setw(2)
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<< std::hex
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<< std::setfill('0')
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<< (static_cast<int>(*it) & 0xff)
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<< ' ';
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}
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std::cout << std::dec << std::endl;
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}
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int main() {
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{ // pack, unpack
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my_class my("John Smith", 42);
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my.a = 123;
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my.set_b("ABC");
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my.set_c("DEF");
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std::stringstream ss;
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msgpack::pack(ss, my);
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print(ss.str());
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msgpack::unpacked unp;
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msgpack::unpack(unp, ss.str().data(), ss.str().size());
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msgpack::object obj = unp.get();
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std::cout << obj << std::endl;
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assert(obj.as<my_class>() == my);
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}
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{ // create object with zone
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my_class my("John Smith", 42);
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my.set_b("ABC");
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my.set_c("DEF");
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msgpack::zone z;
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msgpack::object obj(my, z);
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std::cout << obj << std::endl;
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assert(obj.as<my_class>() == my);
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}
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}
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