/** {@inheritDoc} */
@Override
public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) {
LOG.debug("Start to prepare storm output bolt.");
outputCollector = collector;
if (null != output.getConfig().get(StreamingConfig.STREAMING_STORM_COMMON_ISACK)) {
needAck =
Boolean.valueOf(
output.getConfig().get(StreamingConfig.STREAMING_STORM_COMMON_ISACK).toString());
}
try {
output.initialize();
} catch (StreamingException e) {
LOG.error("Failed to initialize output stream.");
throw new RuntimeException("Failed to initialize output stream", e);
}
}
/** {@inheritDoc} */
@Override
public void cleanup() {
LOG.debug("Start to cleanup storm output bolt.");
try {
output.destroy();
} catch (StreamingException e) {
LOG.error("Failed to destroy output.");
throw new RuntimeException("Failed to destroy output", e);
}
}
/** {@inheritDoc} */
@Override
public void execute(Tuple tuple) {
LOG.debug("Start up to execute tuple.");
String sourceStreamName = tuple.getSourceStreamId();
try {
for (String streamName : output.getInputStream()) {
if (sourceStreamName.equals(streamName)) {
TupleEvent event =
TupleTransform.tupeToEvent(tuple, output.getInputSchema().get(streamName));
output.execute(streamName, event);
}
}
} catch (StreamingException e) {
LOG.error("Failed to execute tuple.");
throw new RuntimeException("Failed to execute tuple.", e);
}
if (needAck) {
outputCollector.ack(tuple);
}
}
/** {@inheritDoc} */
@Override
public Map<String, Object> getComponentConfiguration() {
return output.getConfig();
}