I am having a number of type conversion issues using the Java DSL with Camel 3.14.3. For a simple example I have a route that uses a direct endpoint to trigger a pollEnrich for a file endpoint.
public class BasicRoute extends RouteBuilder {
#Override
public void configure() {
from("direct:test")
.pollEnrich("file://watchDirectory", 10000)
.to("mock:result");
}
}
When the route starts I get the following exception...
Exception in thread "main" org.apache.camel.FailedToCreateRouteException: Failed to create route route1 at: >>> PollEnrich[constant{file://watchDirectory}] <<< in route: Route(route1)[From[direct:test] -> [PollEnrich[constant{file... because of Error parsing [10000] as a java.time.Duration.
...
Caused by: org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: java.lang.String to the required type: java.time.Duration with value 10000
I am running this within a simple OG java app, so I am sure I am missing something in the context initialization, but I cannot find it.
Related
I'm deploying a Spring Batch job triggered by a Camel route. Here is the Spring Batch config:
#Configuration
#EnableBatchProcessing
public class JobConfig
{
...
#Bean(name = "personJob")
public Job personJob(JobCompletionNotificationListener personListener, Step personStep)
{
return jobBuilderFactory
.get(...)
.incrementer(new RunIdIncrementer())
.listener(...)
.flow(...)
.end()
.build();
}
...
The Camel route looks like this:
#ApplicationScoped
public class MyRouteBuilder extends RouteBuilder
{
#Override
public void configure() throws Exception
{
from("file://...")
...
.to("spring-batch:personJob?jobLauncherRef=jobLauncher");
}
Running the route above raises the following exception:
[ERROR] Caused by: org.apache.camel.ResolveEndpointFailedException: Failed to resolve endpoint: spring-batch://personJob?jobLauncherRef=jobLauncher due to: No JobLauncher named jobLauncher found in the registry.
[ERROR] Caused by: java.lang.IllegalStateException: No JobLauncher named jobLauncher found in the registry."}}}}
However, the documentation clearly states:
The #EnableBatchProcessing works similarly to the other #Enable*
annotations in the Spring family. In this case, #EnableBatchProcessing
provides a base configuration for building batch jobs. Within this
base configuration, an instance of StepScope is created in addition to
a number of beans made available to be autowired:
JobRepository: bean name "jobRepository"
JobLauncher: bean name "jobLauncher"
...
So, there should be a bean named "jobLauncher" of the type JobLauncher. Why isn't it found in the registry ?
Many thanks in advance,
Seymour
How do I stop a camel route when there is an exception. My dynamic route is consuming jms and sending to reactive endpoint.
camelContext.addRoutes(New GenerateRoute());
Route generator class is as below:
public class GenerateRoute extends RouteBuilder {
#Override
public void configure() {
from("jms:queue:myQueue")
.toF("reactive-streams:myStream").setId("myRoute");
}}
Try this
from("jms:queue:myQueue")
.routeId("myRoute")
.doTry()
.toF("reactive-streams:myStream")
.doCatch(Exception.class)
.process(exchange -> exchange.getFromEndpoint().stop())
.end();
You can use handled and continued. in the onException clause. "Continued allows you to both handle and continue routing in the original route as if the exception did not occur." if continued is false the routing won't go back to the original route.
DSL:
<onException>
<exception>java.lang.IllegalArgumentException</exception>
<continued><constant>false</constant></continued>
</onException>
Java:
onException(IllegalArgumentException.class).continued(fasle);
Refer to: https://camel.apache.org/manual/latest/exception-clause.html#
I am creating an application using Apache Camel to transfer messages from AMQP to Kafka. Code can also be seen here - https://github.com/prashantbhardwaj/qpid-to-kafka-using-camel
I thought of creating it as standalone SpringBoot app using spring, amqp and kafka starters. Created a route like
#Component
public class QpidToKafkaRoute extends RouteBuilder {
public void configure() throws Exception {
from("amqp:queue:destinationName")
.to("kafka:topic");
}
}
And SpringBoot application configuration is
#SpringBootApplication
public class CamelSpringJmsKafkaApplication {
public static void main(String[] args) {
SpringApplication.run(CamelSpringJmsKafkaApplication.class, args);
}
#Bean
public JmsConnectionFactory jmsConnectionFactory(#Value("${qpidUser}") String qpidUser, #Value("${qpidPassword}") String qpidPassword, #Value("${qpidBrokerUrl}") String qpidBrokerUrl) {
JmsConnectionFactory jmsConnectionFactory = new JmsConnectionFactory(qpidPassword, qpidPassword, qpidBrokerUrl);
return jmsConnectionFactory;
}
#Bean
#Primary
public CachingConnectionFactory jmsCachingConnectionFactory(JmsConnectionFactory jmsConnectionFactory) {
CachingConnectionFactory cachingConnectionFactory = new CachingConnectionFactory(jmsConnectionFactory);
return cachingConnectionFactory;
}
jmsConnectionFactory bean which is created using Spring Bean annotation should be picked by amqp starter and should be injected into the route. But it is not happening. When I started this application, I got following exception -
org.apache.camel.FailedToStartRouteException: Failed to start route route1 because of Route(route1)[From[amqp:queue:destinationName] -> [To[kafka:.
Caused by: java.lang.IllegalArgumentException: connectionFactory must be specified
If I am not wrong connectionFactory should be created automatically if I pass right properties in application.properties file.
My application.properties file looks like :
camel.springboot.main-run-controller = true
camel.component.amqp.enabled = true
camel.component.amqp.connection-factory = jmsCachingConnectionFactory
camel.component.amqp.async-consumer = true
camel.component.amqp.concurrent-consumers = 1
camel.component.amqp.map-jms-message = true
camel.component.amqp.test-connection-on-startup = true
camel.component.kafka.brokers = localhost:9092
qpidBrokerUrl = amqp://localhost:5672?jms.username=guest&jms.password=guest&jms.clientID=clientid2&amqp.vhost=default
qpidUser = guest
qpidPassword = guest
Could you please help suggest why during autoconfiguring connectionFactory object is not being used? When I debug this code, I can clearly see that connectionFactory bean is getting created.
I can even see one more log line -
CamelContext has only been running for less than a second. If you intend to run Camel for a longer time then you can set the property camel.springboot.main-run-controller=true in application.properties or add spring-boot-starter-web JAR to the classpath.
however if you see my application.properties file, required property is present at the very first line.
One more log line, I can see at the beginning of application startup -
[main] trationDelegate$BeanPostProcessorChecker : Bean 'org.apache.camel.spring.boot.CamelAutoConfiguration' of type [org.apache.camel.spring.boot.CamelAutoConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
Is this log line suggesting anything?
Note - One interesting fact that exactly same code was running fine last night, just restarted my desktop and there is not even a single word changed and now it is throwing exception.
This just refers to an interface
camel.component.amqp.connection-factory = javax.jms.ConnectionFactory
Instead it should refer to an existing factory instance, such as
camel.component.amqp.connection-factory = #myFactory
Which you can setup via spring boot #Bean annotation style.
When I use came-snmp resive snmp info which version is 3, it can't go to the process method.
#Component
public class SnmpCollect extends RouteBuilder {
#Override
public void configure() throws Exception {
from("snmp:0.0.0.0:162?protocol=udp&type=TRAP&snmpVersion=3&securityName=test").process(new Processor() {
#Override
public void process(Exchange arg0) throws Exception {
}
}
}
Camel xml config:
<camelContext id="camelContext" xmlns="http://camel.apache.org/schema/spring">
<routeBuilder ref="snmpCollect"/>
</camelContext>
But when the snmp info which version is 1 or 2 is coming, it can go to the process method.
What's wrong with it, and how to make it work for "snmpVersion=3" info?
Camel Version is 2.20.1
Let me try to answer your question by providing some info based in what I've found.
Seems that he requirements and interfaces from v1 and v2 version differ from v3, so it doesn't like to work just updating the version. The mainly difference, from what I've seen, is that you need to provide a security model to v3. I saw that you are passing it via parameters, but have you got the chance to check the security requirements?
When I use the TrapTest where is on the camel-snmp github “github.com/apache/camel/blob/master/components/camel-snmp/src/…”，it‘s ok.But when I change the snmpVersion to SnmpConstants.version3,it's also error
That's because the interface changed and the test should rely on ScopedPDU model instead of the base class PDU. Also the security model isn't set up in this test:
org.snmp4j.MessageException: Message processing model 3 returned error: Unsupported security model
Unfortunately there isn't any example using camel-snmp with v3, but you could take a look into this example using the inner component snmp4j.
cannot figure out what is going on with this - trying to set up a route to just see cxf connect to a soap web service (I don't care about the actual data and don't expect the data to actually 'work', but it keeps throwing an exception I don't understand:
I wonder if I'm configuring it correctly.
I was thinking it might be a missing jar, but strated causing dependency conflicts when I tried to bring in other Jars
I'm using a maven dependency "camel-cxf" to load in all my jar configuration
"Reason: org.apache.cxf.bus.extension.ExtensionException: Could not load extension class org.apache.cxf.ws.policy.AssertionBuilderRegistryImpl."
The exact error is
"Failed to create Producer for endpoint: Endpoint[cxf://http://wsf.cdyne.com/WeatherWS/Weather.asmx?dataFormat=MESSAGE&portName=WeatherSoap&serviceClass=prototypes.CxfExample%24GetWeatherInformationSoapIn&serviceName=Weather&wsdlURL=http%3A%2F%2Fwsf.cdyne.com%2FWeatherWS%2FWeather.asmx%3FWSDL]. Reason: org.apache.cxf.bus.extension.ExtensionException: Could not load extension class org.apache.cxf.ws.policy.AssertionBuilderRegistryImpl."
The code I'm using to cause this is
camel.addComponent( "cxf", new CxfComponent() );
camel.addRoutes( new RouteBuilder() {
#Override
public void configure() throws Exception {
from( "timer://sometimer?delay=1s")
.to( "cxf://http://wsf.cdyne.com/WeatherWS/Weather.asmx"
+"?wsdlURL=http://wsf.cdyne.com/WeatherWS/Weather.asmx?WSDL"
+"&dataFormat=MESSAGE"
+"&serviceClass=prototypes.CxfExample$GetWeatherInformationSoapIn"
+"&serviceName=Weather"
+"&portName=WeatherSoap"
);
}
});
camel.start();
Thread.sleep( 10000 );
camel.stop();
I think I have 'solved' it -
mvn:camel-cfx dependency is not enough
you need mvn:neethi dependency too
the AssertationBuildImpl class extends from a class that is not included in the jar-set for mvn:camel-cfx, which makes AssertationBuildImpl appear listed as a known class in the ide, but doesn't get class-loaded at runtime
this was a horrendous problem to track down, by analysing source-code of third-parties