Identifier¶

Identifier is a formatter that will generate a (mostly) unique 64 bit identifier number from the message timestamp and sequence number. The message payload will not be encoded.

Parameters¶

IdentifierType

IdentifierType defines the algorithm used to generate the message id. This my be one of the following: “hash”, “time”, “seq”, “seqhex”. By default this is set to “time”.

When using “hash” the message payload will be hashed using fnv1a and returned as hex.

When using “time” the id will be formatted YYMMDDHHmmSSxxxxxxx where x denotes the sequence number modulo 10000000. I.e. 10mil messages per second are possible before there is a collision.

When using “seq” the id will be returned as the integer representation of the sequence number.

When using “seqhex” the id will be returned as the hex representation of the sequence number.

IdentifierDataFormatter

IdentifierDataFormatter defines the formatter for the data that is used to build the identifier from. By default this is set to “format.Forward” .

Example¶

- "stream.Broadcast":
    Formatter: "format.Identifier"
    IdentifierType: "hash"
    IdentifierDataFormatter: "format.Forward"