In Camel,
ProducerTemplate producerTemplate = exchange.getContext().createProducerTemplate();
producerTemplate.sendBody("endpointqueue?includeSentJMSMessageID=true", ExchangePattern.InOnly, body);
I would need to get JMSMessageID that is returned from IBM MQ/ActiveMQ. I am looking at exchange values on debug mode but cannot find it. I can only find sessionID. Where is it stored and how to get it?
The Camel documentation says:
includeSentJMSMessageID - only applicable when sending to jms destination using InOnly. enabling this option will enrich the Camel Exchange with the actual JMSMessageID that was used by the JMS client when the message was sent to the JMS destination.
Is includeSentJMSMessageID different than my needs or am I missing something?
The doc says the JMS MessageID is available as header.
So you should be able to return it like this:
from("direct:queueMessage")
.to("jms://myqueue?includeSentJMSMessageID=true")
.setBody().simple("${header.JMSMessageID}");
And then send your message using:
String msgId = producerTemplate.requestBody("direct:queueMessage", body, String.class);
Related
I have a use case where I want to write in memory Java blocking queue contents using apache camel route to S3. Is this even possible??
The workaround I can think of is to pull records from blocking queue and flush to local file and then to S3 via file-s3 route.
Update:
Route :
fromF("seda:awsquue?concurrentConsumers=3&queue=#NonLimitQueue%s", getSourceId())
.convertBodyTo(byte[].class)
.setHeader(S3Constants.CONTENT_LENGTH, simple("${in.header.CamelFileLength}"))
.setHeader(S3Constants.KEY,simple("${in.header.CamelFileNameOnly}"))
.log(LoggingLevel.INFO, "route started")
.to("aws-s3://" +"bucket"
+ "?amazonS3Client=#s3ClientProfiler&serverSideEncryption=AES256&multiPartUpload=true");
Queue creation in different workflow :
context.registerBean("NonLimitQueue"+sourceId,ArrayBlockingQueue.class, () -> queue);
camelContext.addRoutes(new S3RouteBuilder(sourceId));
queue.add("qqqq");
When route starts it fails with exception :
java.lang.ClassCastException: class java.lang.String cannot be cast to class org.apache.camel.Exchange (java.lang.String is in module java.base of loader 'bootstrap'; org.apache.camel.Exchange is in unnamed module of loader 'app')
at org.apache.camel.component.seda.SedaConsumer.doRun(SedaConsumer.java:171)
at org.apache.camel.component.seda.SedaConsumer.run(SedaConsumer.java:125)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
which I believe is failing at queue.add("qqqq"). How to write to queue explicitly is not clear to me.
camel seda is a blocking queue for apache camel. default queue size is 1000 .you can increase or decrease this size.
from("aws-s3://helloBucket?accessKey=yourAccessKey&secretKey=yourSecretKey")
.to("seda:awsquue");
from("seda:awsquue?concurrentConsumers=3&queue=#NonLimitQueue").
// do something
// for quarkus it is
#ApplicationScoped
public class ConnectionConf {
#Named("NonLimitQueue")
#Produces
public BlockingQueue arrayDeque(){
return new ArrayBlockingQueue(30000);
}
}
What seems to be happening is Camel trying to read "qqqq" as an Exchange... Camel routes can only handle Exchange-objects and not arbitrary data-structures. What you should do is place the stream you wish to use in the body of an Exchange and send that exchange to the queue.
Something to the effect of this:
camelContext.addRoutes(new S3RouteBuilder(sourceId));
Exchange exchange = new DefaultExchange(camelContext);
exchange.getIn().setBody("qqqq");
queue.add(exchange);
I have a Camel client using the JMS Component to connect with IBMMQ.
I need to
Send a JMSCorrelationID with a fixed value.
Correlate the Reply message by JMSMessageID.
My configuration is:
.setHeader("CamelJmsDestinationName", "queue:///requestQueue.AQ?targetClient=1")
.setHeader("JMSCorrelationID", "SomeValue")
.to("jms:queue:requestQueue.AQ?useMessageIDAsCorrelationID=true&replyTo=ResponseQueue")
The issue is that JMSCorrelationID is null when useMessageIDAsCorrelationID=true
JMSMessageID: ID:c3e2d840d8d4e3f14040404040404040d95c7873193bef06
JMSTimestamp: 1614870096440
JMSCorrelationID: null
When useMessageIDAsCorrelationID=false the JMSCorrelationID is set as intended, but I get a timeout on correlation. How to use both?
As a way around the issue I made the following changes to the .to() endpoint options:
exchangePattern=InOnly
includeSentJMSMessageID=true
Then the message is sent with a JMSCorrelationID, but without waiting on the reply. Thereafter I set a pollEnrich() dynamically with a simple expression using the JMSMessageID created by the broker which is filtered by a JMS Selector:
selector=JMSMessageID='${header.JMSMessageID}
The Camel route:
.setHeader("CamelJmsDestinationName", "queue:///requestQueue.AQ?targetClient=1")
.setHeader("JMSCorrelationID", "SomeValue")
.to("jms://RequestQueue?useMessageIDAsCorrelationID=false&exchangePattern=InOnly&replyTo=ReplyQueue&includeSentJMSMessageID=true")
.pollEnrich().simple("jms://ReplyQueue?selector=JMSMessageID='${header.JMSMessageID}').timeout(20000)
.log("${body}")
I am using Apache Camel to assist with capturing message data emitted by a third party software package. In this particular instance, I only need to capture what is produced by the software, there is no receiver on the other end (really no "end" to go to).
So, I tried to set up a route with just the "from" endpoint and no "to" endpoint. Apparently this is incorrect usage as I received the following exception:
[2018-08-15 11:08:03.205] ERROR: string.Launcher:191 - Exception
org.apache.camel.FailedToCreateRouteException: Failed to create route route1 at: >>> From[mina:udp://localhost:9877?sync=false] <<< in route: Route(route1)[[From[mina:udp://localhost:9877?sync=false]] -... because of Route route1 has no output processors. You need to add outputs to the route such as to("log:foo").
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1063)
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:196)
at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:974)
at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:3301)
at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3024)
at org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:175)
at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:2854)
at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:2850)
at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:2873)
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:2850)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:2819)
at {removed}.Launcher.startCamel(Launcher.java:189)
at {removed}.Launcher.main(Launcher.java:125)
Caused by: java.lang.IllegalArgumentException: Route route1 has no output processors. You need to add outputs to the route such as to("log:foo").
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1061)
... 13 more
How do I set up a camel route that allows me to intercept (capture) the message traffic coming from the source, and not send it "to" anything? There is no need for a receiver. What would be an appropriate "to" endpoint that just drops everything it receives?
The exception suggestion of to("log:foo"). What does this do?
You can see if the Stub component can help
http://camel.apache.org/stub.html
Example:
from("...")
.to("stub:nowhere");
The exception suggestion of to("log:foo"). What does this do?
It sends your route messages to an endpoint with a component of type log:
(http://camel.apache.org/log.html) - component which basically dumps message contents (body and/or headers and/or properties) to your log file using appropriate log category.
If you just want to drop everything received, it's a good choice:
to("log:com.company.camel.sample?level=TRACE&showAll=true&multiline=true")
Apparently if you're under Linux or Unix, you can also redirect to /dev/null like in this example:
to( "file:/dev?fileName=null")
I am not sure it can be used on Windows but I don't think so.
Note that the syntax: to( "file:/dev/null") does not work as it point to a directory called null but with the fileName option it will work.
After transforming a file with xslt I have to append a file downloaded from ftp. So I did the following:
from("direct:adobe_productList_incremental")
.id("routeADOBESPtransformPI_productList")
.log(LoggingLevel.INFO, "---------Starting file: ${body}")
.convertBodyTo(InputStream.class)
.to("xslt:classpath:" + xsltTransformationProductList)
.log(LoggingLevel.INFO, "---------Transformed file: ${body}")
.pollEnrich(ftpType+"://"+ftpUsername+"#"+ ftpUrl +":" + ftpPort + ftpPath_incrementalComplete +"?password="+ftpPassword+"&fileName="+ftpFilename_incrementalComplete+"&passiveMode=true&binary=true&delete=false",10000)
.log(LoggingLevel.INFO, "---------After poll enrich: ${body}")
.to("file:{{file.root}}{{file.outbox.products_list_incremental}}?fileName={{file.outbox.products_list_incremental.name}}.final");
untill the poll everythin works (the transformation is done correctly), but after the pollEnrich the current body is overrided by the ftp content (and not appended as it should be).
Any help?
No it works as designed.
By default the content will be overridden. If you need to append/merge or whatever, you need to use a custom aggregation strategy, and implement code logic that does this.
See the Camel docs at: http://camel.apache.org/content-enricher.html about the ExampleAggregationStrategy.
The Camel docs says
The aggregation strategy is optional. If you do not provide it
Camel will by default just use the body obtained from the resource.
I created a camel route without INOUT exchange pattern and the route looks like
direct:start > bean:myBean?method=handle
I'm sending payload using ProducerTemplate's send method
Exchange response = producerTemplate.send(endpointUri, exchange);
I set the exception on exchange in the bean's handle method, but its not retained in the response.
Is there something I'm missing.
You should throw an exception from the bean if you want to signal an exception.
I found where camel's hiding the exception. Since I marked the exchange as handled and marked for rollback, camel is setting the exception to null and moved it to properties.
I was able to retrieve it using
result.getProperty(Exchange.EXCEPTION_CAUGHT)