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Posted to users@camel.apache.org by "aum.struts" <au...@gmail.com> on 2011/08/31 10:00:14 UTC
Error Handling In Camel
Hi All,
While working with Camel i have a requirement where i need to validate an
XML with a given XSD and in case of validation faliure need to stop the
process and notify user about valdation failed
First part is working fine for the validation as i am using camel out of the
box validator
and i have declared a global Exception handler in my spring.xml file with
the following entry
<onException useOriginalMessage="true">
<exception>org.apache.camel.ValidationException</exception>
<exception>org.xml.sax.SAXParseException</exception>
<exception>org.apache.camel.processor.validation.SchemaValidationException</exception>
<exception>java.lang.Exception</exception>
<handled>
<constant>false</constant>
</handled>
<process ref="exceptionHandler"/>
to uri="file://data/failed" /
</onException>
where exceptionHandler is my custom Exceptionhandler
public class AdapterExceptionHandler implements Processor {
IAdapterManager adapterManager;
public void setAdapterManager(IAdapterManager adapterManager) {
this.adapterManager = adapterManager;
}
public void process(Exchange exchange) throws Exception {
ExceptionBean exeB = new ExceptionBean();
System.out.println(exchange.getProperty("************
"+Exchange.EXCEPTION_CAUGHT,Throwable.class));
exeB.setExceptionObj(exchange.getException());
System.out.println("Excahange adapterManager---------"+adapterManager);
ManagerStateBean mgrStateBean = null;
if (adapterManager.getAdapterMgrState() != null) {
mgrStateBean=adapterManager.getAdapterMgrState();
}else{
mgrStateBean = new ManagerStateBean();
}
mgrStateBean.setExecutionStatus(AdapterConstants.ExceptionOccurred);
mgrStateBean.setExceptionData(exeB);
adapterManager.setAdapterMgrState(mgrStateBean);
}
But when validation getting failed camel is giving the control back to
AdapterExceptionHandler but Exchange is coming as null since when i am
trying to fetch exception object from it it is coming as null
though on the console it is showing the DefaultErrorHandler is handling the
exception but i am clueless how i can forward the exception to my
"AdapterExceptionHandler "
here is the console output
[thread #1 - file://data/input/] DefaultValidationErrorHandler DEBUG
Validation error: org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The
content of element 'record' is not complete. One of '{element}' is expected.
org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content of
element 'record' is not complete. One of '{element}' is expected.
at
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown
Source)[:1.6.0_26]
[thread #1 - file://data/input/] DefaultErrorHandler DEBUG Failed
delivery for exchangeId: ID-snsln-045-51580-1314777491191-0-28. On delivery
attempt: 0 caught:
org.apache.camel.processor.validation.SchemaValidationException: Validation
failed for:
com.sun.org.apache.xerces.internal.jaxp.validation.SimpleXMLSchema@1d2b8e
errors: [org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content
of element 'record' is not complete. One of '{element}' is expected.,
org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content of
element 'record' is not complete. One of '{element}' is expected.,
org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content of
element 'record' is not complete. One of '{element}' is expected.].
Exchange[null]
Excahange INNNNNNNNNNNnull
Excahange INNNNNNNNNNNCamelFailureEndpoint
Excahange INNNNNNNNNNNCamelFailureHandled
null
null
can any one help me out how can i pass the Exception to my
"AdapterExceptionHandler"
Thanks in advance
--
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Re: Error Handling In Camel
Posted by Travis Klotz <tr...@gmail.com>.
i think the problem is that you have:
System.out.println(exchange.getProperty("************
"+Exchange.EXCEPTION_CAUGHT,Throwable.class));
and what you actually want is:
System.out.println("************ " +
exchange.getProperty(Exchange.EXCEPTION_CAUGHT,Throwable.class));
Travis
On Thu, Sep 1, 2011 at 12:41 PM, aum.struts <au...@gmail.com> wrote:
> But in that case this lines should give the exception details
>
> System.out.println(exchange.getProperty("************
>> "+Exchange.EXCEPTION_CAUGHT,Throwable.class));
>
> but it is giving output as 'null"
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/Error-Handling-In-Camel-tp4753284p4759333.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
Re: Error Handling In Camel
Posted by "aum.struts" <au...@gmail.com>.
But in that case this lines should give the exception details
System.out.println(exchange.getProperty("************
> "+Exchange.EXCEPTION_CAUGHT,Throwable.class));
but it is giving output as 'null"
--
View this message in context: http://camel.465427.n5.nabble.com/Error-Handling-In-Camel-tp4753284p4759333.html
Sent from the Camel - Users mailing list archive at Nabble.com.
Re: Error Handling In Camel
Posted by Claus Ibsen <cl...@gmail.com>.
The caused exception is stored as a property on the Exchange using the key
Exchange.EXCEPTION_CAUGHT
On Wed, Aug 31, 2011 at 10:00 AM, aum.struts <au...@gmail.com> wrote:
> Hi All,
>
> While working with Camel i have a requirement where i need to validate an
> XML with a given XSD and in case of validation faliure need to stop the
> process and notify user about valdation failed
>
> First part is working fine for the validation as i am using camel out of the
> box validator
> and i have declared a global Exception handler in my spring.xml file with
> the following entry
>
> <onException useOriginalMessage="true">
> <exception>org.apache.camel.ValidationException</exception>
> <exception>org.xml.sax.SAXParseException</exception>
>
> <exception>org.apache.camel.processor.validation.SchemaValidationException</exception>
> <exception>java.lang.Exception</exception>
> <handled>
> <constant>false</constant>
> </handled>
> <process ref="exceptionHandler"/>
> to uri="file://data/failed" /
> </onException>
>
> where exceptionHandler is my custom Exceptionhandler
>
> public class AdapterExceptionHandler implements Processor {
>
> IAdapterManager adapterManager;
>
> public void setAdapterManager(IAdapterManager adapterManager) {
> this.adapterManager = adapterManager;
> }
>
> public void process(Exchange exchange) throws Exception {
> ExceptionBean exeB = new ExceptionBean();
> System.out.println(exchange.getProperty("************
> "+Exchange.EXCEPTION_CAUGHT,Throwable.class));
> exeB.setExceptionObj(exchange.getException());
> System.out.println("Excahange adapterManager---------"+adapterManager);
> ManagerStateBean mgrStateBean = null;
> if (adapterManager.getAdapterMgrState() != null) {
> mgrStateBean=adapterManager.getAdapterMgrState();
> }else{
> mgrStateBean = new ManagerStateBean();
> }
> mgrStateBean.setExecutionStatus(AdapterConstants.ExceptionOccurred);
> mgrStateBean.setExceptionData(exeB);
> adapterManager.setAdapterMgrState(mgrStateBean);
> }
>
> But when validation getting failed camel is giving the control back to
> AdapterExceptionHandler but Exchange is coming as null since when i am
> trying to fetch exception object from it it is coming as null
>
> though on the console it is showing the DefaultErrorHandler is handling the
> exception but i am clueless how i can forward the exception to my
> "AdapterExceptionHandler "
>
> here is the console output
>
> [thread #1 - file://data/input/] DefaultValidationErrorHandler DEBUG
> Validation error: org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The
> content of element 'record' is not complete. One of '{element}' is expected.
> org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content of
> element 'record' is not complete. One of '{element}' is expected.
> at
> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown
> Source)[:1.6.0_26]
>
> [thread #1 - file://data/input/] DefaultErrorHandler DEBUG Failed
> delivery for exchangeId: ID-snsln-045-51580-1314777491191-0-28. On delivery
> attempt: 0 caught:
> org.apache.camel.processor.validation.SchemaValidationException: Validation
> failed for:
> com.sun.org.apache.xerces.internal.jaxp.validation.SimpleXMLSchema@1d2b8e
> errors: [org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content
> of element 'record' is not complete. One of '{element}' is expected.,
> org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content of
> element 'record' is not complete. One of '{element}' is expected.,
> org.xml.sax.SAXParseException: cvc-complex-type.2.4.b: The content of
> element 'record' is not complete. One of '{element}' is expected.].
> Exchange[null]
> Excahange INNNNNNNNNNNnull
> Excahange INNNNNNNNNNNCamelFailureEndpoint
> Excahange INNNNNNNNNNNCamelFailureHandled
> null
> null
>
> can any one help me out how can i pass the Exception to my
> "AdapterExceptionHandler"
>
> Thanks in advance
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/Error-Handling-In-Camel-tp4753284p4753284.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
--
Claus Ibsen
-----------------
FuseSource
Email: cibsen@fusesource.com
Web: http://fusesource.com
Twitter: davsclaus, fusenews
Blog: http://davsclaus.blogspot.com/
Author of Camel in Action: http://www.manning.com/ibsen/