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@oceanstream/filenotifier

File and directory notifier module for OceanStream data platform based on the Azure IoT Edge framework.

Description

The primary objective of the FileNotifier module is to:

  1. monitor specified folders for any file activities, specified by extension (by default .raw data files);
  2. dispatch periodic state updates related to file and folder activities to the IoT Hub;
  3. idle detection based on file inactivity – if no file operations are detected within a predefined time interval (default 2 minutes), the system transitions to an "offline" state
  4. serve as a source of metadata and other relevant information related to the equipment operation.

Parameters

Parameter Description Default Value Data Type
RAW_DATA_FOLDER Specifies the directory to monitor for .raw data files. /app/tmpdata String
alertTimeDiff Time in milliseconds to wait until changing the state to ALARM if no file activity is detected. 120000 ms (2 mins) Number
logLevel Sets the verbosity level for logging. Possible values: 'debug', 'info', 'warn', 'error'. debug String
logFormat Determines the format of the log, either json for structured logs or text for plain text logs. text String
logTimestamp Whether to include timestamps in the log entries. false Boolean
alertSendingInterval Interval (in custom units defined by alertSendingIntervalUnit) between consecutive state update messages. 30 Number
alertSendingIntervalUnit Unit of time, in milliseconds, for alertSendingInterval. 60000 ms (1 min) Number
connectMaxTimeout Maximum timeout, in milliseconds, for status check. 90000 ms (1.5 mins) Number
connectMinTimeout Minimum timeout, in milliseconds, for status check. 100 ms Number
filePollingInterval Interval, in milliseconds, at which the chokidar library checks for file or folder changes. 10000 ms (10 secs) Number
continuousProcessing Flag to indicate whether files should be processed continuously or not. false Boolean
enableRawFileProcessing Flag to control whether to send raw files for further processing or not. true Boolean
fileWatchThreshold Time duration, in milliseconds, to watch for changes before raising an event. 10000 ms (10 secs) Number

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