DbFetcher.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 DBFETCHER_H
#define DBFETCHER_H

#include "DB/DbWatcher.h"
#include "Database.h"
#include "DatabaseProvider.h"

#include "../Endpoint.h"

// Database to Mq

class ExportedTestObject DbFetcher : public Endpoint
{
        protected :

                // methods for controlling the endpoint 
                void internalStart();
                void internalStop();

        public:
        
                // constructor
                DbFetcher();
        
                //destructor
                ~DbFetcher();

                // called before start. allows the endpoint to prepare environment
                void Init();
                
                // methods for transactional execution
                
                //Connect to database
                string Prepare();

                // Delete processed data, disconnect from database
                void Commit();

                // Delete processed data, disconnect from database
                void Abort();
                
                // Disconnect from database
                void Rollback();

                //Select data, convert to XML format, passed them to be processed
                void Process( const string& correlationId );    
                
                static void NotificationCallback( const AbstractWatcher::NotificationObject* notification );    
                
                static DbFetcher* m_Me;
                pthread_t getWatcherThreadId() { return m_Watcher.getThreadId(); }

        private :
                
                DbWatcher m_Watcher;
                string m_CurrentRowId;
                int m_UncommitedTrns, m_MaxUncommitedTrns;
                XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *m_CurrentMessage;
                XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *m_SavedMessage;
                ManagedBuffer *m_CurrentMessageStr;
                bool m_NotificationTypeXML, m_Rollback;
                bool m_DatabaseToXmlTrimm;

                string m_DatabaseProvider;
                string m_DatabaseName;                  //Connector Database Name
                string m_UserName;                              //Connector User
                string m_UserPassword;                  //Connector Password
                string m_TableName;                             //Connector Table
                
                //Connector table Stored Procedures
                string m_SPmarkforprocess;              //mark an unprocessed record as the currently processed recod
                string m_SPselectforprocess;    //select the current record
                string m_SPmarkcommit;                  //mark current processed record commited
                string m_SPmarkabort;                   //mark current processed record aborted
                string m_SPWatcher;                             //look for available records
                
                Database *m_CurrentDatabase;
                DatabaseProviderFactory *m_CurrentProvider;
};

#endif