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/*
* This file is part of rasdaman community.
*
* Rasdaman community 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.
*
* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
/
/**
* SOURCE: rasmgr_dbm.hh
*
* MODULE: rasmgr
* CLASS: DatabaseHost, DatabaseHostManager, Database, DatabaseManager
*
* COMMENTS:
* none
*
*/
#ifndef RASMGR_DBM_HH
#define RASMGR_DBM_HH
#include "rasmgr.hh"
#include "rasmgr_config.hh"
//#include "rasmgr_srv.hh"
/**
* \ingroup Rasmgrs
*/
class DatabaseHost
{
public:
DatabaseHost();
~DatabaseHost();
void init(const char* hostName,const char *connectString);
const char* getName();
const char* getConnectionString();
void changeConnectionString(const char *connectString);
void changeName(const char *newName);
void regStartServer();
void regDownServer();
//void incrConnServers();
//void decrConnServers();
//void incrConnDatabases();
//void decrConnDatabases();
bool prepareToBeRemoved();
bool isBusy();
bool isValid();
private:
char hostName[100];
char connectString[100];
int activServers;
//int connServers;
//int connDatabases;
bool valid;
};
/**
* \ingroup Rasmgrs
*/
class DatabaseHostManager
{
public:
DatabaseHostManager();
~DatabaseHostManager();
bool insertNewHost(const char* hostName,const char* connectString);
bool removeHost(const char* hostName);
int countHosts();
DatabaseHost& operator[](int);
DatabaseHost& operator[](const char* hostName);
bool reset();
bool acceptChangeName(const char *oldName,const char *newName);
private:
bool testUniqueness(const char* hostName);
list<DatabaseHost> hostList;
DatabaseHost protElem;
};
extern DatabaseHostManager dbHostManager;
//*****************************************************
class RasServer;
/**
* \ingroup Rasmgrs
*/
class Database
{
public:
Database();
~Database();
void init(const char* databaseName);
const char* getName();
void changeName(const char* databaseName);
static const char* getDescriptionHeader(char *destBuffer);
const char* getDescription(char *destBuffer);
bool connectToDBHost(const char* hostName);
bool disconnectFromDBHost(const char* hostName);
bool isConnectedToDBHost(const char* hostName);
int countConnectionsToDBHosts();
const char* getDBHostName(int);
bool connectToRasServer(const char *serverName);
bool disconnectFromRasServer(const char *serverName);
bool isConnectedToRasServer(const char *serverName);
int countConnectionsToRasServers();
const char* getRasServerName(int);
void disconnectForRemove();
void startWriteTransaction();
void endWriteTransaction();
void startReadTransaction();
void endReadTransaction();
int getWriteTransactionCount();
int getReadTransactionCount();
bool isBusy();
void setTraceWriteTrans(bool);
bool isValid();
private:
bool checkConnection(DatabaseHost &);
bool checkConnection(RasServer &);
char databaseName[100];
list<DatabaseHost*> hostPtrList;
list<RasServer*> rasPtrList;
bool traceWT;
int countWriteTransactions;
int countReadTransactions;
bool valid;
};
/**
* \ingroup Rasmgrs
*/
class DatabaseManager
{
public:
DatabaseManager();
~DatabaseManager();
bool insertNewDatabase(const char* databaseName);
bool removeDatabase(const char* databaseName);
int countDatabases();
Database& operator[](int);
Database& operator[](const char*);
void disconnectAllDatabasesFromDBH(const char* dbhName);
bool reset();
bool acceptChangeName(const char *oldName,const char *newName);
private:
bool testUniqueness(const char* dbName);
list<Database> dtbList;
Database protElem;
};
extern DatabaseManager dbManager;
#endif
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