Convertor from UniRec to JSON format

This module receives any UniRec format and converts message by message into JSON format. The result is sent in form of JSON messages via TRAP output IFC.

See ./unirec2json.py -h for help.

Mappings

Using -M JSONFILE, --maps=JSONFILEA, it is possible to load a JSON file with configuration to modify the JSON object after UniRec conversion.

There are three supported operations: match, regex, timify. Each operation can be listed at most once, however, they can contain modification of multiple fields (keys) in the JSON.

match

match uses exact match of key src to assign the value of dest. The value is looked up in mapping.

Example:

{
  "match": [
    {
      "src": "PROTOCOL",
      "dest": "PROTOCOL_NAME",
      "mapping": {
        "6": "TCP",
        "17": "UDP"
      }
    }
  ]
}

This means PROTOCOL_NAME is created in the JSON object and its value is set to "TCP" when PROTOCOL is "6", and to "UDP" when PROTOCOL is "17".

regex

regex works similarly but it iterates over the listed regular expressions to find the value.

Example:

{
  "regex": [
    {
      "src": "PREFIX_NAME",
      "dest": "ISVUT",
      "mapping": {
        "www\\..*": "web",
        "webmail\\..*": "mail"
      }
    }
  ]
}

timify

timify coverts values (float, number of seconds) of the listed keys into datetime

{
  "timify": [
    "TIME_FIRST",
    "TIME_LAST"
  ]
}