EventSequence

本文主要是介绍EventSequence，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
#include <map>
#include <set>
#include <vector>
#include <list>
#include <memory>
#include <streambuf>
#include <deque>


#include "CJsonObject/CJsonObject.hpp"

using namespace std;
typedef map<string,string> Event;

struct EventsContainer{
    const Event PopEvent() {
        if( events.empty()) {
            cout << "Empty Event queue" << endl;
            return Event();
        }
        Event tmp = events.front();
        events.pop_front();
        return tmp;
    }
    void AddEvent(const string& evenname, const map<string,string>& param) {
        AddEvent(param);
    }

    void AddEvent(const Event& event) {
        events.push_back(event);
    }
    deque<Event> events;
};


class EventSequence{
public:
    EventSequence() {
    }

    const Event GetEvent(){
        return container->PopEvent();
    }

    void SetEventsContainer(shared_ptr<EventsContainer> ptr) {
        container = ptr;
    }


private:
    shared_ptr<EventsContainer> container;
};

class EventsInitializer{
public:
    shared_ptr<EventSequence> operator()(const std::string& file) {
        shared_ptr<EventSequence> esptr = make_shared<EventSequence>();
        shared_ptr<EventsContainer> ecptr = make_shared<EventsContainer>();
        esptr->SetEventsContainer(ecptr);
        container = ecptr;
        ReadJsonFile(file);
        return esptr;
    }

    void ReadJsonFile( const string& file) {
        ifstream f (file.c_str());
        if( f.is_open()) {
            jsonstr = string(istreambuf_iterator<char>(f), istreambuf_iterator<char>());
            json = make_shared<neb::CJsonObject>(jsonstr);
            cout << "JSON error msg -->" << json->GetErrMsg() << endl;
            Parse();
            return;
        }
        cout << "ERROR---->File Not ok, Plase Check File....." << endl;
    }

    virtual void Parse() {
        for( int i = 0; i < (*json)["events"].GetArraySize(); ++i) {
            map<string,string> tmp;
            while(true) {
                string key;
                string value;
                (*json)["events"][i].GetKey(key);
                if ( key.empty() ) break;
                (*json)["events"][i].Get(key, value);
                tmp[key] = value;
            }
            container->AddEvent(tmp["event"], tmp);
        }
        cout << "Json Parsing Ok...." << endl;
    }

    

private:
    string jsonstr;
    shared_ptr<neb::CJsonObject> json;
    shared_ptr<EventsContainer> container;
};


class CallObject{
public:
    virtual void operator()(const Event& event) {
        string ename = (event.find("event")== event.end())?"":(event.find("event"))->second;

        cout << "event:" << ename << endl;
        for( map<string,string>::const_iterator itr = event.begin(); 
                itr != event.end(); ++itr ) {
            cout << "+->" <<itr->first << ":" << itr->second << endl;
        }
    }
};


class ActionControler{
public:
    ActionControler(shared_ptr<EventSequence> ptr) {
        SetEventSequence(ptr);
    }

    void SetEventSequence(shared_ptr<EventSequence> ptr) {
        sequence = ptr;
    }

    void run(CallObject& call) {
        char tmp;
        while( cin.get(tmp)) {
            switch( tmp ) {
                case '\n':
                    call(sequence->GetEvent());
                    break;
                default:
                    break;
            }
        }
    }

private:
    std::shared_ptr<EventSequence> sequence;
};



int main(int argc, char** argv) {
    shared_ptr<EventSequence> eventsequence = EventsInitializer()(argv[1]);
    ActionControler ac(eventsequence);
    CallObject callme;
    ac.run(callme);
    return -1;
}

这篇关于EventSequence的文章就介绍到这儿，希望我们推荐的文章对大家有所帮助，也希望大家多多支持为之网！