/// <summary>Saves the event to database.</summary>
/// <param name="transaction">The transaction.</param>
/// <param name="severity">The severity of the event.</param>
/// <param name="message">The message.</param>
/// <param name="source">The source.</param>
/// <returns>The database's primary key of the saved event.</returns>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="transaction"/> is a null
/// (Nothing in VB) reference.</exception>
protected virtual int SaveEventToDatabase(SqlTransaction transaction, LoggingEventType severity,
string message, string source)
{
if (transaction == null)
{
throw new ArgumentNullException("transaction");
}
using (var command = new SqlCommand(AddEventProcedure, transaction.Connection, transaction))
{
command.CommandType = CommandType.StoredProcedure;
SqlLoggingHelper.AddParameter(command, "EventTypeId", SqlDbType.Int, (int)severity);
SqlLoggingHelper.AddParameter(command, "Message", SqlDbType.NText, message);
SqlLoggingHelper.AddParameter(command, "Source", SqlDbType.NText, source);
object eventId = command.ExecuteScalar();
if (!(eventId is int))
{
throw new InvalidOperationException(SR.StoredProcedureReturnedInvalidValue(
AddEventProcedure, eventId, typeof(int)));
}
return((int)eventId);
}
}
/// <summary>Saves the exception to database.</summary>
/// <param name="transaction">The transaction.</param>
/// <param name="exception">The exception.</param>
/// <param name="parentEventId">The parent event id.</param>
/// <param name="parentExceptionId">The parent exception id.</param>
/// <returns>The database's primary key of the saved exception.</returns>
/// <exception cref="ArgumentNullException">Thrown when either <paramref name="transaction"/> or
/// <paramref name="exception"/> are null (Nothing in VB) references.</exception>
protected virtual int SaveExceptionToDatabase(SqlTransaction transaction, Exception exception,
int parentEventId, int?parentExceptionId)
{
if (exception == null)
{
throw new ArgumentNullException("exception");
}
if (transaction == null)
{
throw new ArgumentNullException("transaction");
}
using (var command = new SqlCommand(AddExceptionProcedure, transaction.Connection, transaction))
{
command.CommandType = CommandType.StoredProcedure;
SqlLoggingHelper.AddParameter(command, "EventId", SqlDbType.Int, parentEventId);
SqlLoggingHelper.AddParameter(command, "ParentExceptionId", SqlDbType.Int, parentExceptionId);
SqlLoggingHelper.AddParameter(command, "ExceptionType", SqlDbType.NVarChar, exception.GetType().Name);
SqlLoggingHelper.AddParameter(command, "Message", SqlDbType.NText, exception.Message);
SqlLoggingHelper.AddParameter(command, "StackTrace", SqlDbType.NText, exception.StackTrace);
object exceptionId = command.ExecuteScalar();
if (!(exceptionId is int))
{
throw new InvalidOperationException(SR.StoredProcedureReturnedInvalidValue(
AddExceptionProcedure, exceptionId, typeof(int)));
}
return((int)exceptionId);
}
}
private bool GetInitializeSchemaAttributeFromConfig(NameValueCollection config)
{
const string InitializeSchemaAttribute = "initializeSchema";
string initializeSchema = config[InitializeSchemaAttribute];
// Remove this attribute from the configuration. This way the provider can spot unrecognized
// attributes after the initialization process.
config.Remove(InitializeSchemaAttribute);
const bool DefaultValueWhenMissing = false;
return(SqlLoggingHelper.ParseBoolConfigValue(this.Name, InitializeSchemaAttribute,
initializeSchema, DefaultValueWhenMissing));
}
/// <summary>Initializes the database schema.</summary>
protected virtual void InitializeDatabaseSchema()
{
try
{
SqlLoggingHelper.ThrowWhenSchemaAlreadyHasBeenInitialized(this);
string createScript = SR.SqlLoggingProviderSchemaScripts();
// Split the script in separate operations. SQL Server chokes on the GO statements.
string[] createScripts = createScript.Split(new string[] { "GO" }, StringSplitOptions.None);
SqlLoggingHelper.CreateTablesAndStoredProcedures(this, createScripts);
}
catch (SqlException ex)
{
throw new ProviderException(SR.InitializationOfDatabaseSchemaFailed(this.Name, ex.Message), ex);
}
}
