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Posted to issues@camel.apache.org by "Joe Luo (JIRA)" <ji...@apache.org> on 2014/04/02 18:23:15 UTC

[jira] [Updated] (CAMEL-7338) CxfClientCallback should not populate camel exchange OUT message if no response comes back to cxf producer and camel exchange pattern is InOnly

     [ https://issues.apache.org/jira/browse/CAMEL-7338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joe Luo updated CAMEL-7338:
---------------------------

    Description: 
I have a following camel route:
{code}
String destination = "cxf:http://localhost:9090/test?dataFormat=MESSAGE";

    from("jms:queue:dslSource")
        .onException(java.net.ConnectException.class, Exception.class)
            .maximumRedeliveries(3)
            .maximumRedeliveryDelay(3000)
            .retryAttemptedLogLevel(LoggingLevel.INFO)
            .log(LoggingLevel.WARN, "Failed to send message ${body}") 
            .log(LoggingLevel.WARN, "Sending message to the error queue: ${body}")          // body is null here
            .to("jms:queue:dslError")
        .end()
        .log(LoggingLevel.INFO, "Sending message ...")
        .setHeader("bridgeDestination", constant(destination))
        .to(destination)
        .log(LoggingLevel.INFO, "received back: ${body}")
        .routeId("example-dsl");
{code}

If an exception is thrown, for instance, a ConnectionException due to unavailability of the backend web service, the onException() route will be executed. The first log endpoint:
{code}
.log(LoggingLevel.WARN, "Failed to send message ${body}") 
{code}
prints out camel exchange IN message body without any problem. However, the second log endpoint:
{code}
.log(LoggingLevel.WARN, "Sending message to the error queue: ${body}")
{code}
only prints out the camel exchange IN message body as NULL.

The reason is that when an exception is thrown, the CxfClientCallback.handleException() is called:
{code}
public void handleException(Map<String, Object> ctx, Throwable ex) {
    ....
        if (!boi.getOperationInfo().isOneWay()) {
            // copy the InMessage header to OutMessage header                 
            camelExchange.getOut().getHeaders().putAll(camelExchange.getIn().getHeaders());
            binding.populateExchangeFromCxfResponse(camelExchange, cxfExchange, ctx);
            camelAsyncCallback.done(false);
        }
...
{code}
and this line always populates camel exchange OUT message regardless whether there is a CXF response back or not:
{code}
camelExchange.getOut().getHeaders().putAll(camelExchange.getIn().getHeaders());
{code}
Therefore, the second log endpoint within onException() block has it's camel exchange IN message been overwritten and replaced with OUT message from previous endpoint's although it is a message of NULL body.


  was:
I have a following camel route:
{code}
String destination = "cxf:http://localhost:9090/test?dataFormat=MESSAGE";

    from("jms:queue:dslSource")
        .onException(java.net.ConnectException.class, Exception.class)
            .maximumRedeliveries(3)
            .maximumRedeliveryDelay(3000)
            .retryAttemptedLogLevel(LoggingLevel.INFO)
            .log(LoggingLevel.WARN, "Failed to send message ${body}") 
            .log(LoggingLevel.WARN, "Sending message to the error queue: ${body}")          // body is null here
            .to("jms:queue:dslError")
        .end()
        .log(LoggingLevel.INFO, "Sending message ...")
        .setHeader("bridgeDestination", constant(destination))
        .to(destination)
        .log(LoggingLevel.INFO, "received back: ${body}")
        .routeId("example-dsl");
{code}

If an exception is thrown, for instance, a ConnectionException due to unavailability of the backend web service, the onException() route will be executed. The first log endpoint:
{code}
.log(LoggingLevel.WARN, "Failed to send message ${body}") 
{code}
prints out camel exchange IN message body without any problem. However, the second log endpoint:
{code}
.log(LoggingLevel.WARN, "Sending message to the error queue: ${body}")
{code}
only prints out the camel exchange IN message body as NULL.

The reason is that when an exception is thrown, the CxfClientCallback.handleException() is called:
{code}
public void handleException(Map<String, Object> ctx, Throwable ex) {
    ....
        if (!boi.getOperationInfo().isOneWay()) {
            // copy the InMessage header to OutMessage header                 
            camelExchange.getOut().getHeaders().putAll(camelExchange.getIn().getHeaders());
            binding.populateExchangeFromCxfResponse(camelExchange, cxfExchange, ctx);
            camelAsyncCallback.done(false);
        }
...
{code}
and this line always populates camel exchange OUT message regardless whether there is a CXF response back or not:
{code}
camelExchange.getOut().getHeaders().putAll(camelExchange.getIn().getHeaders());
{code}




> CxfClientCallback should not populate camel exchange OUT message if no response comes back to cxf producer and camel exchange pattern is InOnly
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CAMEL-7338
>                 URL: https://issues.apache.org/jira/browse/CAMEL-7338
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-cxf
>    Affects Versions: 2.10.4
>            Reporter: Joe Luo
>
> I have a following camel route:
> {code}
> String destination = "cxf:http://localhost:9090/test?dataFormat=MESSAGE";
>     from("jms:queue:dslSource")
>         .onException(java.net.ConnectException.class, Exception.class)
>             .maximumRedeliveries(3)
>             .maximumRedeliveryDelay(3000)
>             .retryAttemptedLogLevel(LoggingLevel.INFO)
>             .log(LoggingLevel.WARN, "Failed to send message ${body}") 
>             .log(LoggingLevel.WARN, "Sending message to the error queue: ${body}")          // body is null here
>             .to("jms:queue:dslError")
>         .end()
>         .log(LoggingLevel.INFO, "Sending message ...")
>         .setHeader("bridgeDestination", constant(destination))
>         .to(destination)
>         .log(LoggingLevel.INFO, "received back: ${body}")
>         .routeId("example-dsl");
> {code}
> If an exception is thrown, for instance, a ConnectionException due to unavailability of the backend web service, the onException() route will be executed. The first log endpoint:
> {code}
> .log(LoggingLevel.WARN, "Failed to send message ${body}") 
> {code}
> prints out camel exchange IN message body without any problem. However, the second log endpoint:
> {code}
> .log(LoggingLevel.WARN, "Sending message to the error queue: ${body}")
> {code}
> only prints out the camel exchange IN message body as NULL.
> The reason is that when an exception is thrown, the CxfClientCallback.handleException() is called:
> {code}
> public void handleException(Map<String, Object> ctx, Throwable ex) {
>     ....
>         if (!boi.getOperationInfo().isOneWay()) {
>             // copy the InMessage header to OutMessage header                 
>             camelExchange.getOut().getHeaders().putAll(camelExchange.getIn().getHeaders());
>             binding.populateExchangeFromCxfResponse(camelExchange, cxfExchange, ctx);
>             camelAsyncCallback.done(false);
>         }
> ...
> {code}
> and this line always populates camel exchange OUT message regardless whether there is a CXF response back or not:
> {code}
> camelExchange.getOut().getHeaders().putAll(camelExchange.getIn().getHeaders());
> {code}
> Therefore, the second log endpoint within onException() block has it's camel exchange IN message been overwritten and replaced with OUT message from previous endpoint's although it is a message of NULL body.



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