Hello again,
After some more test, I found out that I forgot that a sequence was called
in the connector (the actual call of the Java class). In my connector, the
call of the Java class was followed by a Payload Factory which used the
generated JSON located in the content of the body to "cast" it as JSON.
Something like that:
<payloadFactory media-type="json">
<format>$1</format>
<args>
<arg evaluator="xml" expression="$body/"/>
</args>
</payloadFactory>
So that was why when I wanted to retrieve my "body content" as simple text
to put it into a property, the ESB just parse it to generate XML
(auto-conversion JSON => XML) and that is why I had to use json-eval to
prevent that.
On the performance-side, it seems that I gained some precious seconds so...
I am happy :)
Regards,
Thomas
2017-10-30 14:28 GMT+01:00 Thomas LEGRAND <[email protected]>:
> Hello everybody!
>
> I have a custom connector in which I inserted some instruction to get the
> time it takes to finish the execution. It is very simple and is like that :
>
> @Override
> public void connect(MessageContext messageContext) throws ConnectException
> {
> long start = System.currentTimeMillis();
> // MY CODE HERE
> messageContext.getEnvelope().getBody().setText(<MY BADASS JSON>);
> LOGGER.info("Generation of the message took " +
> (System.currentTimeMillis() - start) + " ms");
> }
>
> My connector took around 110 ms to finish the connect method. Is it too
> long or too short? For the moment, we don't care.
>
> This connector is called from a custom sequence in which I do the same :
> some properties to retrieve the start date and end date and process the
> difference to see how much time the execution takes. Something like that:
>
> <sequence name="mySequence" trace="disable" xmlns="http://ws.apache.org/
> ns/synapse">
> <property description="start" expression="get-property('SYSTEM_TIME')"
> name="start" scope="default" type="LONG"/>
> <custom.callMyConnector>
> <!-- some properties here -->
> </custom.callMyConnector>
> <property description="myBadassJson" expression="json-eval($.)"
> name="myBadassJson" scope="default" type="STRING"/>
> <call-template description="logExecutionTime"
> target="logExecutionTime">
> <with-param name="startExecutionTime" value="{$ctx:start}"/>
> <with-param name="executionLabel" value="mySequence"/>
> </call-template>
> </sequence>
>
> It calls a template which does just that:
>
> <template name="logExecutionTime" xmlns="http://ws.apache.org/ns/synapse";>
> <parameter name="startExecutionTime"/>
> <parameter name="executionLabel"/>
> <sequence>
> <property description="startExecutionTime"
> expression="$func:startExecutionTime"
> name="startExecutionTime" scope="default" type="STRING"/>
> <property description="executionLabel"
> expression="$func:executionLabel"
> name="executionLabel" scope="default" type="STRING"/>
> <property description="endExecutionTime"
> expression="get-property('SYSTEM_TIME')"
> name="endExecutionTime" scope="default" type="LONG"/>
> <script language="js"><![CDATA[var startExecutionTime =
> mc.getProperty("startExecutionTime");
> var endExecutionTime = mc.getProperty("endExecutionTime");
> var executionLabel = mc.getProperty("executionLabel");
>
> var logger = mc.getServiceLog();
> logger.info(executionLabel + " executed in " +
> (endExecutionTime - startExecutionTime) + " ms");]]></script>
> </sequence>
> </template>
>
> And, here is the wild thing appearing: I have in my log:
>
> TID: [-1234] [] [2017-10-30 14:03:55,464] INFO
> {org.apache.synapse.mediators.bsf.ScriptMessageContext} - mySequence
> executed in 3975 ms {org.apache.synapse.mediators.
> bsf.ScriptMessageContext}
>
> 3 secs! It is huge! It is like the json-eval invokation in the property
> mediator, after the call of my connector, is taking too much time (around
> 3800 ms?). If I don't use json-eval, the ESB generates me XML and I suspect
> that it take much more time to convert it from JSON to XML.
> In addition, I put the payload in a property because I call many
> connectors sequentially to do an aggregation of their payload later (via a
> script mediator). I do the same for each connector I call.
>
> Do you have an idea why is it taking so long to just put text from the
> payload into a property (actually, if it is possible to just don't evaluate
> it, it would be cool)?
> Have you some directios to give me to optimize my process?
>
> Thank you!
>
> Regards,
>
> Thomas
>
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