LogManager.h

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/*
* FinTP - Financial Transactions Processing Application
* Copyright (C) 2013 Business Information Systems (Allevo) S.R.L.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
* or contact Allevo at : 031281 Bucuresti, 23C Calea Vitan, Romania,
* phone +40212554577, office@allevo.ro <mailto:office@allevo.ro>, www.allevo.ro.
*/

#ifndef LOGMANAGER_H
#define LOGMANAGER_H

#include <exception>
#include <string>
#include <iostream>
#include <vector>

#include "pthread.h"

#include <xercesc/dom/DOM.hpp>

//#include "AppSettings.h"
#include "Collections.h"
#include "WorkItemPool.h"

#include "AbstractLogPublisher.h"
#include "AppExceptions.h"

using namespace std;
XERCES_CPP_NAMESPACE_USE

namespace FinTP
{
        //EXPIMP_TEMPLATE template class ExportedLogObject std::vector< AbstractLogPublisher* >;

        class ExportedLogObject LogManager 
        {
                public :
                        typedef WorkItemPool< AppException > EventsPool;

                        ~LogManager();// Terminate XML4C2 and delete m_AppException

                        // methods
                        static void Publish( const AppException& except );
                        static void Publish( const string& message, const EventType::EventTypeEnum eventType = EventType::Error );
                        static void Publish( const char* message, const EventType::EventTypeEnum eventType = EventType::Error );
                        static void Publish( const std::exception& innerException, const EventType::EventTypeEnum eventType = EventType::Error, const string& message="" );

                        // initialize m_PropSettings
                        static void Initialize( const NameValueCollection& applicationSettings, bool threaded = false );                
                
                        static bool isInitialized();
                        static void setCorrelationId( const string& value );

                        static void setSessionId( const string& value );

                        static void Terminate();

                        static pthread_t getPublisherThreadId();
                        static void Register( AbstractLogPublisher* logPublisher, bool isDefault );
                        
                private :       

                        static void CreateKeys();
                        static void DeleteCorrelIds( void* data );

                        LogManager();// Initialize the XML4C2 system
                        bool m_Initialized;
                        bool m_Threaded;

                        // the one and only instance
                        static LogManager Instance;

                        static pthread_once_t KeysCreate;
                        static pthread_key_t CorrelationKey;
                        static pthread_mutex_t InstanceMutex;
                        pthread_t m_PublishThreadId;

                        void setThreaded( const bool threaded );
                        static void* PublisherThread( void *param );
                        
                        string m_SessionId;
                        
                        // default publisher and all other publishers
                        AbstractLogPublisher* m_DefaultPublisher;
                        vector< AbstractLogPublisher* > m_Publishers;

                        void setDefaultPublisher( AbstractLogPublisher* defaultPublisher );

                        void ClearPublishers();
                        
                        // either inserts the event to the pool or publishers the event ( regarding m_Threaded attribute )
                        void InternalPublish( const AppException& except ) throw();
                        void InternalPublishProc( const AppException& except );

                        static EventsPool m_EventsPool;
        };
}

#endif // LOGMANAGER_H