TracePlugin* FB_CARG TraceFactoryImpl::trace_create(Firebird::IStatus* status, TraceInitInfo* initInfo)
{
Firebird::MasterInterfacePtr master;
const char* dbname = NULL;
try
{
master->upgradeInterface(initInfo, FB_TRACE_INIT_INFO_VERSION, upInfo);
dbname = initInfo->getDatabaseName();
if (!dbname)
dbname = "";
TracePluginConfig config;
TraceCfgReader::readTraceConfiguration(initInfo->getConfigText(), dbname, config);
TraceDatabaseConnection* connection = initInfo->getConnection();
if (connection)
master->upgradeInterface(connection, FB_TRACE_CONNECTION_VERSION, upInfo);
if (!config.enabled ||
(config.connection_id && connection &&
(connection->getConnectionID() != SLONG(config.connection_id))))
{
return NULL; // Plugin is not needed, no error happened.
}
Firebird::AutoPtr<TraceLogWriter, Firebird::SimpleRelease<TraceLogWriter> >
logWriter(initInfo->getLogWriter());
if (logWriter)
config.log_filename = "";
return new TracePluginImpl(config, initInfo); // Everything is ok, we created a plugin
}
catch (Firebird::Exception& ex)
{
// put error into trace log
TraceLogWriter* logWriter = initInfo->getLogWriter();
if (logWriter)
{
master->upgradeInterface(logWriter, FB_TRACE_LOG_WRITER_VERSION, upInfo);
const char* strEx = TracePluginImpl::marshal_exception(ex);
Firebird::string err;
if (dbname)
err.printf("Error creating trace session for database \"%s\":\n%s\n", dbname, strEx);
else
err.printf("Error creating trace session for service manager attachment:\n%s\n", strEx);
logWriter->write(err.c_str(), err.length());
logWriter->release();
}
else
ex.stuffException(status);
}
return NULL;
}
