/// <summary>
///
/// <para>WriteLogs:</para>
///
/// <para>Writes logs to the logging service</para>
///
/// <para>Check <seealso cref="IBLoggingServiceInterface.WriteLogs"/> for detailed documentation</para>
///
/// </summary>
public bool WriteLogs(
List <BLoggingParametersStruct> _Messages,
string _LogGroupName,
string _LogStreamName,
bool _bAsync = true,
Action <string> _ErrorMessageAction = null)
{
if (_Messages == null || _Messages.Count == 0)
{
return(false);
}
if (_bAsync)
{
BTaskWrapper.Run(() =>
{
WriteLogs(_Messages, _LogGroupName, _LogStreamName, false, _ErrorMessageAction);
});
return(true);
}
else
{
_LogGroupName = BUtility.EncodeStringForTagging(_LogGroupName);
_LogStreamName = BUtility.EncodeStringForTagging(_LogStreamName);
string SequenceToken = null;
bool bLogStreamAndGroupExists = false;
try
{
var DescribeStreamRequest = new DescribeLogStreamsRequest(_LogGroupName);
using (var CreatedDescribeTask = CloudWatchLogsClient.DescribeLogStreamsAsync(DescribeStreamRequest))
{
CreatedDescribeTask.Wait();
if (CreatedDescribeTask.Result != null && CreatedDescribeTask.Result.LogStreams != null && CreatedDescribeTask.Result.LogStreams.Count > 0)
{
foreach (var Current in CreatedDescribeTask.Result.LogStreams)
{
if (Current != null && Current.LogStreamName == _LogStreamName)
{
SequenceToken = Current.UploadSequenceToken;
bLogStreamAndGroupExists = true;
break;
}
}
}
}
}
catch (Exception)
{
bLogStreamAndGroupExists = false;
}
if (!bLogStreamAndGroupExists)
{
try
{
var CreateGroupRequest = new CreateLogGroupRequest(_LogGroupName);
using (var CreatedGroupTask = CloudWatchLogsClient.CreateLogGroupAsync(CreateGroupRequest))
{
CreatedGroupTask.Wait();
}
}
catch (Exception e)
{
if (!(e is ResourceAlreadyExistsException))
{
_ErrorMessageAction?.Invoke("BLoggingServiceAWS->WriteLogs: " + e.Message + ", Trace: " + e.StackTrace);
return(false);
}
}
try
{
var CreateStreamRequest = new CreateLogStreamRequest(_LogGroupName, _LogStreamName);
using (var CreatedStreamTask = CloudWatchLogsClient.CreateLogStreamAsync(CreateStreamRequest))
{
CreatedStreamTask.Wait();
}
}
catch (Exception e)
{
if (!(e is ResourceAlreadyExistsException))
{
_ErrorMessageAction?.Invoke("BLoggingServiceAWS->WriteLogs: " + e.Message + ", Trace: " + e.StackTrace);
return(false);
}
}
}
var LogEvents = new List <InputLogEvent>();
foreach (var Message in _Messages)
{
var LogEvent = new InputLogEvent()
{
Message = Message.Message,
Timestamp = DateTime.UtcNow
};
switch (Message.LogType)
{
case EBLoggingServiceLogType.Debug:
LogEvent.Message = "Debug-> " + LogEvent.Message;
break;
case EBLoggingServiceLogType.Info:
LogEvent.Message = "Info-> " + LogEvent.Message;
break;
case EBLoggingServiceLogType.Warning:
LogEvent.Message = "Warning-> " + LogEvent.Message;
break;
case EBLoggingServiceLogType.Error:
LogEvent.Message = "Error-> " + LogEvent.Message;
break;
case EBLoggingServiceLogType.Critical:
LogEvent.Message = "Critical-> " + LogEvent.Message;
break;
}
LogEvents.Add(LogEvent);
}
try
{
var PutRequest = new PutLogEventsRequest(_LogGroupName, _LogStreamName, LogEvents)
{
SequenceToken = SequenceToken
};
using (var CreatedPutTask = CloudWatchLogsClient.PutLogEventsAsync(PutRequest))
{
CreatedPutTask.Wait();
}
}
catch (Exception e)
{
_ErrorMessageAction?.Invoke("BLoggingServiceAWS->WriteLogs: " + e.Message + ", Trace: " + e.StackTrace);
return(false);
}
return(true);
}
}
/// <summary>
/// Opens the component.
/// </summary>
/// <param name="correlationId">(optional) transaction id to trace execution through call chain.</param>
public async Task OpenAsync(string correlationId)
{
if (IsOpen())
{
return;
}
var awsConnection = await _connectionResolver.ResolveAsync(correlationId);
// Assign service name
awsConnection.Service = "logs";
awsConnection.ResourceType = "log-group";
if (!string.IsNullOrEmpty(awsConnection.Resource))
{
_group = awsConnection.Resource;
}
// Undefined stream creates a random stream on every connect
if (string.IsNullOrEmpty(_stream))
{
_stream = IdGenerator.NextLong();
}
// Validate connection params
var err = awsConnection.Validate(correlationId);
if (err != null)
{
throw err;
}
// Create client
var region = RegionEndpoint.GetBySystemName(awsConnection.Region);
var config = new AmazonCloudWatchLogsConfig()
{
RegionEndpoint = region
};
_client = new AmazonCloudWatchLogsClient(awsConnection.AccessId, awsConnection.AccessKey, config);
// Create a log group if needed
try
{
await _client.CreateLogGroupAsync(
new CreateLogGroupRequest
{
LogGroupName = _group
}
);
}
catch (ResourceAlreadyExistsException)
{
// Ignore. Everything is ok
}
// Create or read log stream
try
{
await _client.CreateLogStreamAsync(
new CreateLogStreamRequest
{
LogGroupName = _group,
LogStreamName = _stream
}
);
_lastToken = null;
}
catch (ResourceAlreadyExistsException)
{
var response = await _client.DescribeLogStreamsAsync(
new DescribeLogStreamsRequest
{
LogGroupName = _group,
LogStreamNamePrefix = _stream
}
);
if (response.LogStreams.Count > 0)
{
_lastToken = response.LogStreams[0].UploadSequenceToken;
}
}
if (_timer == null)
{
_timer = new FixedRateTimer(OnTimer, _interval, _interval);
_timer.Start();
}
}
