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Java (Java Agent, Installation, JVM, and Controller Installation)

How do we cast objects in getter chain?

rajkumarr
Adventurer

How do we cast objects in getter chain?

Document [1] doesn't talk about how we can cast an object and use getter chains on that.

 

For example, ((MySecondClass) myFirstObject.myFirstMethod()).mySecondMethod() How do I do this in Appdynamics?

 

[1] https://docs.appdynamics.com/display/PRO44/Using+Getter+Chains

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How do we cast objects in getter chain?
4 REPLIES 4
Cody.Naumann
AppDynamics Team

Hi, what types of objects are you trying to cast? I see that the documentation covers examples for the following:

 

  • HTTP Request Objects
  • Hashmap values
  • Dictionary objects

I think it depends on the type of object -- if you can share that with me I can find an example for you, and update the docs.

 

Cody

rajkumarr
Adventurer

Hi Cody,

 

I'm using data collectors, and instrumenting on org.apache.synapse.core.axis2.Axis2Sender class' sendBack(org.apache.synapse.MessageContext smc) method.

 

I want to use getter chain on the method parameter (smc), but I can't use one direclty, I need to first cast org.apache.synapse.MessageContext to org.apache.synapse.core.axis2.Axis2MessageContext and then invoke getter chain on the casted object.

 

How do I do this?

 

Regards

Raj

Cody.Naumann
AppDynamics Team

Great question. I don't know -- let me ask the team internally and I'll get back to you.

 

Cody

Rajesh.Putta
AppDynamics Team

Hi Raj,

 

You need not cast object here. I understand that org.apache.synapse.core.axis2.Axis2MessageContext  implements org.apache.synapse.core.axis2.MessageContext. So when you define data collector, at run time the getter chain will be invoked on implementing object.

 

You can define DC on

 

Class :org.apache.synapse.core.axis2.Axis2MessageContext 

Method: sendBack

 

0th param.<getterchain>

 

Hope that answers your query.

 

Thanks

Rajesh