public class SamplingThrottler extends DelegateAsyncProcessor
SamplingThrottler
is a special kind of throttler. It also
limits the number of exchanges sent to a downstream endpoint. It differs from
a normal throttler in that it will not queue exchanges above the threshold
for a given period. Instead these exchanges will be stopped, precluding them
from being processed at all by downstream consumers.
This kind of throttling can be useful for taking a sample from
an exchange stream, rough consolidation of noisy and bursty exchange traffic
or where queuing of throttled exchanges is undesirable.Modifier and Type | Field and Description |
---|---|
protected org.slf4j.Logger |
log |
processor
shutdown, shuttingdown, started, starting, stopped, stopping, suspended, suspending
Constructor and Description |
---|
SamplingThrottler(Processor processor,
long messageFrequency) |
SamplingThrottler(Processor processor,
long samplePeriod,
TimeUnit units) |
Modifier and Type | Method and Description |
---|---|
String |
getTraceLabel() |
boolean |
process(Exchange exchange,
AsyncCallback callback)
Processes the message exchange.
|
String |
toString() |
doStart, doStop, getProcessor, hasNext, next, process, processNext, setProcessor, setProcessor
doResume, doShutdown, doSuspend, getStatus, getVersion, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, resume, shutdown, start, stop, suspend
protected final org.slf4j.Logger log
public SamplingThrottler(Processor processor, long messageFrequency)
public SamplingThrottler(Processor processor, long samplePeriod, TimeUnit units)
public String toString()
toString
in class DelegateAsyncProcessor
public String getTraceLabel()
public boolean process(Exchange exchange, AsyncCallback callback)
AsyncProcessor
Processor.process(org.apache.camel.Exchange)
, but the caller supports having the exchange asynchronously processed.
If there was a failure processing then the caused Exception
would be set on the Exchange
.process
in interface AsyncProcessor
process
in class DelegateAsyncProcessor
exchange
- the message exchangecallback
- the AsyncCallback
will be invoked when the processing of the exchange is completed.
If the exchange is completed synchronously, then the callback is also invoked synchronously.
The callback should therefore be careful of starting recursive loop.Apache Camel