@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) {
FlowFile flowFile = session.get();
if (flowFile == null) {
return;
}
final ProcessorLog logger = getLogger();
boolean encode = context.getProperty(MODE).getValue().equalsIgnoreCase(ENCODE_MODE);
String encoding = context.getProperty(ENCODING).getValue();
StreamCallback encoder = null;
// Select the encoder/decoder to use
if (encode) {
if (encoding.equalsIgnoreCase(BASE64_ENCODING)) {
encoder = new EncodeBase64();
} else if (encoding.equalsIgnoreCase(BASE32_ENCODING)) {
encoder = new EncodeBase32();
} else if (encoding.equalsIgnoreCase(HEX_ENCODING)) {
encoder = new EncodeHex();
}
} else {
if (encoding.equalsIgnoreCase(BASE64_ENCODING)) {
encoder = new DecodeBase64();
} else if (encoding.equalsIgnoreCase(BASE32_ENCODING)) {
encoder = new DecodeBase32();
} else if (encoding.equalsIgnoreCase(HEX_ENCODING)) {
encoder = new DecodeHex();
}
}
if (encoder == null) {
logger.warn(
"Unknown operation: {} {}", new Object[] {encode ? "encode" : "decode", encoding});
return;
}
try {
final StopWatch stopWatch = new StopWatch(true);
flowFile = session.write(flowFile, encoder);
logger.info("Successfully {} {}", new Object[] {encode ? "encoded" : "decoded", flowFile});
session
.getProvenanceReporter()
.modifyContent(flowFile, stopWatch.getElapsed(TimeUnit.MILLISECONDS));
session.transfer(flowFile, REL_SUCCESS);
} catch (Exception e) {
logger.error(
"Failed to {} {} due to {}", new Object[] {encode ? "encode" : "decode", flowFile, e});
session.transfer(flowFile, REL_FAILURE);
}
}
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session)
throws ProcessException {
final BlockingQueue<String> partitionIds = this.partitionNames;
final String partitionId = partitionIds.poll();
if (partitionId == null) {
getLogger().debug("No partitions available");
return;
}
final StopWatch stopWatch = new StopWatch(true);
try {
final Iterable<EventData> receivedEvents = receiveEvents(context, partitionId);
if (receivedEvents == null) {
return;
}
for (final EventData eventData : receivedEvents) {
if (null != eventData) {
final Map<String, String> attributes = new HashMap<>();
FlowFile flowFile = session.create();
EventData.SystemProperties systemProperties = eventData.getSystemProperties();
if (null != systemProperties) {
attributes.put(
"eventhub.enqueued.timestamp",
String.valueOf(eventData.getSystemProperties().getEnqueuedTime()));
attributes.put("eventhub.offset", eventData.getSystemProperties().getOffset());
attributes.put(
"eventhub.sequence",
String.valueOf(eventData.getSystemProperties().getSequenceNumber()));
}
attributes.put("eventhub.name", context.getProperty(EVENT_HUB_NAME).getValue());
attributes.put("eventhub.partition", partitionId);
flowFile = session.putAllAttributes(flowFile, attributes);
flowFile =
session.write(
flowFile,
out -> {
out.write(eventData.getBody());
});
session.transfer(flowFile, REL_SUCCESS);
final String namespace = context.getProperty(NAMESPACE).getValue();
final String eventHubName = context.getProperty(EVENT_HUB_NAME).getValue();
final String consumerGroup = context.getProperty(CONSUMER_GROUP).getValue();
final String transitUri =
"amqps://"
+ namespace
+ ".servicebus.windows.net"
+ "/"
+ eventHubName
+ "/ConsumerGroups/"
+ consumerGroup
+ "/Partitions/"
+ partitionId;
session
.getProvenanceReporter()
.receive(flowFile, transitUri, stopWatch.getElapsed(TimeUnit.MILLISECONDS));
}
}
} finally {
partitionIds.offer(partitionId);
}
}