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From "Keegan Witt (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CAMEL-11749) NoTypeConversionAvailableException in wiretap
Date Tue, 05 Sep 2017 19:01:00 GMT

     [ https://issues.apache.org/jira/browse/CAMEL-11749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Keegan Witt updated CAMEL-11749:
--------------------------------
    Description: 
# Clone https://github.com/apache/camel/tree/master/examples/camel-example-spring-boot
# Add _CamelLogger.java_ with contents below to _src/main/java/org/apache/camel/examples_

{code:title=CamelLogger.java}
package org.apache.camel.examples;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.springframework.stereotype.Component;

@Component
public class CamelLogger implements Processor {
    @Override
    public void process(Exchange exchange) {
        System.err.println(exchange.getIn().getBody());
    }
}
{code}

Changing _SampleCamelRouter_ to
{code:java}
@Component
public class SampleCamelRouter extends RouteBuilder {
    @Override
    public void configure() throws Exception {
        from("timer:hello?period={{timer.period}}")
                .transform(method("myBean", "saySomething"))
                .wireTap("bean:camelLogger")
                .to("stream:out");
    }
}
{code}

Fails with stacktrace
{noformat}
Stacktrace
---------------------------------------------------------------------------------------------------------------------------------------

org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert
from type: null to the required type: java.lang.String with value null
	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:206)
~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
	at org.apache.camel.processor.SendDynamicProcessor.resolveEndpoint(SendDynamicProcessor.java:144)
~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
	at org.apache.camel.processor.SendDynamicProcessor.process(SendDynamicProcessor.java:104)
~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97)
[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
	at org.apache.camel.processor.WireTapProcessor$1.call(WireTapProcessor.java:158) [camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
	at org.apache.camel.processor.WireTapProcessor$1.call(WireTapProcessor.java:153) [camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_144]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]
{noformat}

With Camel 2.15.5 or with _SampleCamelRouter_ of content below, exception doesn't occur.
{code:java}
@Component
public class SampleCamelRouter extends RouteBuilder {
    @Resource CamelLogger camelLogger;

    @Override
    public void configure() throws Exception {
        from("timer:hello?period={{timer.period}}")
                .transform(method("myBean", "saySomething"))
                .wireTap("direct:logging")
                .to("stream:out");
        from("direct:logging").process(camelLogger);
    }
}
{code}

  was:
# Clone https://github.com/apache/camel/tree/master/examples/camel-example-spring-boot
# Add _CamelLogger.java_ with contents below to _src/main/java/org/apache/camel/examples_

{code:title=Bar.java}
package org.apache.camel.examples;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.springframework.stereotype.Component;

@Component
public class CamelLogger implements Processor {
    @Override
    public void process(Exchange exchange) {
        System.err.println(exchange.getIn().getBody());
    }
}
{code}


> NoTypeConversionAvailableException in wiretap
> ---------------------------------------------
>
>                 Key: CAMEL-11749
>                 URL: https://issues.apache.org/jira/browse/CAMEL-11749
>             Project: Camel
>          Issue Type: Improvement
>          Components: camel-core
>    Affects Versions: 2.19.2
>            Reporter: Keegan Witt
>            Assignee: Claus Ibsen
>
> # Clone https://github.com/apache/camel/tree/master/examples/camel-example-spring-boot
> # Add _CamelLogger.java_ with contents below to _src/main/java/org/apache/camel/examples_
> {code:title=CamelLogger.java}
> package org.apache.camel.examples;
> import org.apache.camel.Exchange;
> import org.apache.camel.Processor;
> import org.springframework.stereotype.Component;
> @Component
> public class CamelLogger implements Processor {
>     @Override
>     public void process(Exchange exchange) {
>         System.err.println(exchange.getIn().getBody());
>     }
> }
> {code}
> Changing _SampleCamelRouter_ to
> {code:java}
> @Component
> public class SampleCamelRouter extends RouteBuilder {
>     @Override
>     public void configure() throws Exception {
>         from("timer:hello?period={{timer.period}}")
>                 .transform(method("myBean", "saySomething"))
>                 .wireTap("bean:camelLogger")
>                 .to("stream:out");
>     }
> }
> {code}
> Fails with stacktrace
> {noformat}
> Stacktrace
> ---------------------------------------------------------------------------------------------------------------------------------------
> org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert
from type: null to the required type: java.lang.String with value null
> 	at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:206)
~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> 	at org.apache.camel.processor.SendDynamicProcessor.resolveEndpoint(SendDynamicProcessor.java:144)
~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> 	at org.apache.camel.processor.SendDynamicProcessor.process(SendDynamicProcessor.java:104)
~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> 	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> 	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> 	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97)
[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> 	at org.apache.camel.processor.WireTapProcessor$1.call(WireTapProcessor.java:158) [camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> 	at org.apache.camel.processor.WireTapProcessor$1.call(WireTapProcessor.java:153) [camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_144]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144]
> 	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]
> {noformat}
> With Camel 2.15.5 or with _SampleCamelRouter_ of content below, exception doesn't occur.
> {code:java}
> @Component
> public class SampleCamelRouter extends RouteBuilder {
>     @Resource CamelLogger camelLogger;
>     @Override
>     public void configure() throws Exception {
>         from("timer:hello?period={{timer.period}}")
>                 .transform(method("myBean", "saySomething"))
>                 .wireTap("direct:logging")
>                 .to("stream:out");
>         from("direct:logging").process(camelLogger);
>     }
> }
> {code}



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