apache-camel

问题 I have one application that we deploy on a cluster. The cluster might have 2 or 4 JVMs as per the environment. The application has same CamelContext which we are deploying on all the JVMs. Hence, all the JVMs have same routes. For FTP routes, that is good as it makes it competitive and only 1 JVM gets the files. However, while using timer based operation to fetch from DB, I see that all the JVMs read the same set of records and do the same job. What I want is, if one route picks it up, the

问题 I have one application that we deploy on a cluster. The cluster might have 2 or 4 JVMs as per the environment. The application has same CamelContext which we are deploying on all the JVMs. Hence, all the JVMs have same routes. For FTP routes, that is good as it makes it competitive and only 1 JVM gets the files. However, while using timer based operation to fetch from DB, I see that all the JVMs read the same set of records and do the same job. What I want is, if one route picks it up, the

问题 I hava a camel rest api which is supposed to update my existing function in aws lambda. The code is like so -> .post("lambda-update-function") .route() .process(new Processor(){ @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader("CamelAwsLambdaS3Bucket", "bucketName"); exchange.getIn().setHeader("CamelAwsLambdaS3Key", "aws1.zip"); } }) .to("aws2-lambda://functionName?accessKey=insert&secretKey=insert&region=us-east-1&operation=updateFunction")

问题 I have an apache camel rest api which downloads a file from S3. I send json input (key, bucketname, accessKey, secretKey, region) in order to write the URI. The code looks like this: public static class HelloRoute extends RouteBuilder { @Override public void configure() { rest("/") .post("file-from-s3") .route() .setHeader(AWS2S3Constants.KEY, key) .to("aws2-s3://bucketname?accessKey=INSERT&secretKey=INSERT&region=INSERT&operation=getObject") .endRest(); } } I am able to get the respective

问题 How do I setup transaction in JMS route to rollback or not consume a message when an exception occurs. Below is my route. MQ is ActiveMQ. from("jms:queue:myQueue") .routeId("myRoute") .doTry() .toF("reactive-streams:myStream") .doCatch(Exception.class) .process(exchange -> exchange.getFromEndpoint().stop()) .end();` 回答1: Simply adding transacted did the job! Also, had to enable connection pooling and camel-jms-starter (for default factories). from("jms:queue:myQueue?transacted=true") .routeId

问题 Let's say I have a Job Scheduler which has 4 consumers A, B, C and D. Jobs of type X will have to be routed to Consumer A, type Y to Consumer B and so on. Consumers A, B, C and D are to run as independent applications without any dependency, either locally or remotely. The consumers take varying times to complete their jobs, which are subsequently routed to the Job Scheduler for aggregation. Clones of one of the consumers may also be needed to share its eligible jobs. A job should however be

问题 I am getting below exception with Camel Route Caused by: com.fasterxml.jackson.databind.JsonMappingException: No serializer found for class org.apache.camel.converter.stream.InputStreamCache and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:284) at com.fasterxml.jackson.databind.SerializerProvider.mappingException(SerializerProvider

问题 I have following camel routing configuration. <camelContext id="camel" xmlns="http://camel.apache.org/schema/spring"> <!-- Rest Configuration --> <restConfiguration component="jetty" port="9092" bindingMode="auto"> <dataFormatProperty key="json.in.disableFeatures" value="FAIL_ON_UNKNOWN_PROPERTIES" /> </restConfiguration> <rest path="/" consumes="application/json" produces="application/json"> <post uri="/" type="com.aaa.xxxx.esb.config.xxxxEsbJsonMapping"> <route> <setHeader headerName=

问题 I have a Kafka cluster(version : 0.10.1.0), with 9 brokers and 10 partitions. I tried consuming messages from a java application using camel kafka 2.14.3 . Here is my camel route <route id="ReadFromTopic"> <from uri="kafka:[[broker.list]]?topic=[[topic]]&zookeeperHost=[[zookeeper.host]]&zookeeperPort=[[zookeeper.port]]&groupId=[[consumer.group]]&consumerStreams=[[concurrency]]" /> <log message="Message Read from kafka topic : [[topic]]" loggingLevel="INFO" /> <log message=" BODY is ${body}"

问题 I am setting up a Camel Route with ackMode=NONE meaning acknowlegements are not done automatically. How do I explicitly acknowledge the message in the route? In my Camel Route definition I've set ackMode to NONE. According to the documentation, I should be able to manually acknowledge the message downstream: https://github.com/apache/camel/blob/master/components/camel-google-pubsub/src/main/docs/google-pubsub-component.adoc "AUTO = exchange gets ack’ed/nack’ed on completion. NONE = downstream