tape_odbc/ODBCConnMgr.cpp

/*  $Id$
    Copyright (C) 2008 Battelle Memorial Institute

 *
 *  author: Matt Hauer, matthew.hauer@pnl.gov, 6/4/07 - ***
 */


#include "ODBCConnMgr.h"

ODBCConnMgr *ODBCConnMgr::mgr=0;

ODBCConnMgr::ODBCConnMgr(){
    mgr=this;
    handles.clear();
}

ODBCConnMgr::~ODBCConnMgr(){
    mgr=0;
    while(!handles.empty()){
        delete handles.front();
        handles.pop_front();
    }
}

ODBCConnMgr *ODBCConnMgr::GetMgr(){
    if(mgr == 0) return new ODBCConnMgr();
    return mgr;
}

ODBCConnHandle *ODBCConnMgr::ConnectToHost(char *hostname, char *uid, char *pwd){
    if(!handles.empty()){
        list<ODBCConnHandle *>::iterator itr=handles.begin();
        do{
            if(0 == (*itr)->CheckName(hostname)) return *itr;
        } while(itr!=handles.end());
    }
    //  guess we aren't connected to that host.
//  then again, let's give it a shot.  -MH
//  if((uid == null) || (pwd == null)) return null; //  no uid or pwd, auto-fail.
    odbc::Connection *conn=odbc::DriverManager::getConnection(hostname, uid, pwd);
    if(conn != 0){
        handles.push_back(new ODBCConnHandle(conn, hostname));
    } else {
        printf("WARNING:\tODBCConnMgr::ConnectToHost: unable to connect to host %s with uid %s!\n", hostname, uid);
        return 0;
    }
    return handles.back();
}

int ODBCConnMgr::DisconnectFromHost(char *hostname){
    if(!handles.empty()){
        list<ODBCConnHandle *>::iterator itr=handles.begin();
        do{
            if(0 == (*itr)->CheckName(hostname)){
                (*itr)->Disconnect();
                handles.erase(itr);
                return 1;
            }
        } while(itr!=handles.end());
    }
    printf("WARNING:\tODBCConnMgr::DisconnectFromHost(%s): we're not connected to that host!\n", hostname);
    return 0;
}

//  end of ODBCConnMgr.cpp

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