Context Routing
As explained earlier, event has two main parts namely Header and Payload. Header (Key/Value pair) values can be used and accordingly routing defined. Two components where the routing selection can be decided are:
- Channel: A channel can be selected according to the header values. Custom component namely Channel Selector can be written which can have code written to select the channel desired for achieving your use case.
- Sink: As before, header values can be used to make decisions to select the right sink. Also, within the sink different operations can be performed by writing custom sink which can do whatever your use case require. There are some default header values which can also be used to do sophisticated stuff for your use case selected.
Basically you can introduce any number of headers and using which your components can do the right stuff. Doing this, the flume components behaves dynamically in all aspects.
