/**
* Creates a new Aggregator based on the current schema. If setup fails, this method is
* responsible for cleaning up and informing the context of the failure state, as well is
* informing the upstream operators.
*
* @return true if the aggregator was setup successfully. false if there was a failure.
*/
private boolean createAggregator() {
logger.debug("Creating new aggregator.");
try {
stats.startSetup();
this.aggregator = createAggregatorInternal();
return true;
} catch (SchemaChangeException | ClassTransformationException | IOException ex) {
context.fail(ex);
container.clear();
incoming.kill(false);
return false;
} finally {
stats.stopSetup();
}
}
@Override
protected void killIncoming(boolean sendUpstream) {
incoming.kill(sendUpstream);
}