public void Log(IDatabaseLog ev, bool traceErrors)
{
lock (this)
{
if (_logThread == null)
{
if (dbLogSwitch.TraceWarning && traceErrors)
{
Debug.WriteLine("Unable to log to database as system not running", DbTraceListener.catInfo);
}
throw new Exception("Unable to log to database as system not running");
}
lock (_eventQueue)
{
_eventQueue.Add(new DatabaseLogItem(ev, traceErrors));
_eventQueueItem.Set();
}
}
}
public MorpherLog(IDatabaseLog database, IMorpherCache morpherCache)
{
_database = database;
_morpherCache = morpherCache;
}
public DatabaseLogItem(IDatabaseLog item, bool traceErrors)
{
_item = item;
_traceErrors = traceErrors;
}
private void ThreadFunction()
{
if (dbLogSwitch.TraceVerbose)
{
Debug.WriteLine("Database logging thread initialized", DbTraceListener.catInfo);
}
using (OleDbConnection conn = new OleDbConnection(_connectionString))
{
_eventThreadReady.Set();
bool exiting = false;
do
{
_eventQueueItem.WaitOne();
// Copy items / state to local queue
DatabaseLogItem[] localQueue;
lock (_eventQueue)
{
localQueue = new DatabaseLogItem[_eventQueue.Count];
_eventQueue.CopyTo(localQueue);
_eventQueue.Clear();
exiting = _exiting;
}
bool traceErrors = true;
try
{
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
foreach (DatabaseLogItem i in localQueue)
{
try
{
IDatabaseLog r = i._item;
if (!i._traceErrors)
{
traceErrors = false;
}
// Dynamically create insert command if we've never processed
// this type of object before
OleDbCommand insCmd;
_insertCmdHash.TryGetValue(r.GetType(), out insCmd);
if (insCmd == null)
{
insCmd = r.CreateInsertCommand();
insCmd.Connection = conn;
_insertCmdHash[r.GetType()] = insCmd;
}
r.FillInsertCmd(insCmd);
insCmd.ExecuteNonQuery();
}
catch (Exception ex)
{
if (dbLogSwitch.TraceError)
{
if (i._traceErrors)
{
Debug.WriteLine("Unable to log to database:" + ex.Message,
DbTraceListener.catError);
}
}
continue;
}
}
if (dbLogSwitch.TraceVerbose && traceErrors)
{
Debug.WriteLine(String.Format("{0} status message(s) logged sucecssfully to database",
localQueue.Length), DbTraceListener.catInfo);
}
conn.Close();
}
catch (Exception ex)
{
if (dbLogSwitch.TraceError && traceErrors)
{
Debug.WriteLine("Unable to connect to database:" + ex.Message,
DbTraceListener.catError);
}
}
} while (!exiting);
}
}
public void Log(IDatabaseLog ev)
{
Log(ev, true);
}
public DatabaseLogItem(IDatabaseLog item, bool traceErrors)
{
_item = item;
_traceErrors = traceErrors;
}
public void Log(IDatabaseLog ev, bool traceErrors)
{
lock (this)
{
if (_logThread == null)
{
if (dbLogSwitch.TraceWarning && traceErrors)
Debug.WriteLine("Unable to log to database as system not running", DbTraceListener.catInfo);
throw new Exception("Unable to log to database as system not running");
}
lock (_eventQueue)
{
_eventQueue.Add(new DatabaseLogItem(ev, traceErrors));
_eventQueueItem.Set();
}
}
}
public void Log(IDatabaseLog ev)
{
Log(ev, true);
}
