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/* Copyright 2009 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kNetwork
#include "mongo/platform/basic.h"
#include "mongo/client/connection_string.h"
#include <list>
#include "mongo/client/dbclientinterface.h"
#include "mongo/client/dbclient_rs.h"
#include "mongo/client/syncclusterconnection.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/log.h"
namespace mongo {
boost::mutex ConnectionString::_connectHookMutex;
ConnectionString::ConnectionHook* ConnectionString::_connectHook = NULL;
DBClientBase* ConnectionString::connect( std::string& errmsg, double socketTimeout ) const {
switch ( _type ) {
case MASTER: {
DBClientConnection * c = new DBClientConnection(true);
c->setSoTimeout( socketTimeout );
LOG(1) << "creating new connection to:" << _servers[0];
if ( ! c->connect( _servers[0] , errmsg ) ) {
delete c;
return 0;
}
LOG(1) << "connected connection!";
return c;
}
case PAIR:
case SET: {
DBClientReplicaSet * set = new DBClientReplicaSet( _setName , _servers , socketTimeout );
if( ! set->connect() ) {
delete set;
errmsg = "connect failed to replica set ";
errmsg += toString();
return 0;
}
return set;
}
case SYNC: {
// TODO , don't copy
std::list<HostAndPort> l;
for ( unsigned i=0; i<_servers.size(); i++ )
l.push_back( _servers[i] );
SyncClusterConnection* c = new SyncClusterConnection( l, socketTimeout );
return c;
}
case CUSTOM: {
// Lock in case other things are modifying this at the same time
boost::lock_guard<boost::mutex> lk( _connectHookMutex );
// Allow the replacement of connections with other connections - useful for testing.
uassert( 16335, "custom connection to " + this->toString() +
" specified with no connection hook", _connectHook );
// Double-checked lock, since this will never be active during normal operation
DBClientBase* replacementConn = _connectHook->connect( *this, errmsg, socketTimeout );
log() << "replacing connection to " << this->toString() << " with "
<< ( replacementConn ? replacementConn->getServerAddress() : "(empty)" );
return replacementConn;
}
case INVALID:
throw UserException( 13421 , "trying to connect to invalid ConnectionString" );
break;
}
verify( 0 );
return 0;
}
} // namepspace mongo
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