What is the purpose of routePolicy in ESB ?

[Anonymous]

Hi,

I have one route already created. I'm trying to understand that.

Here is the structure.

cConfig component 

import org.apache.camel.impl.ThrottlingInflightRoutePolicy;

ThrottlingInflightRoutePolicy maxInflightPolicy = new ThrottlingInflightRoutePolicy();
maxInflightPolicy.setMaxInflightExchanges(20);

My First Question here is, Is setMaxInflightExchanges count is the max number of messages which can fit inside a queue ?

cFile--->cJavaDSLProcessor----->cSetHeader----->cLog----->cSetHeader--->cConvertBodyTo---->cMessageRouter--->SoOn------

Below are the component's settings:

1) In cFile there is some directory path is present 

Question: Does cFile read files or just pass the name and path of file ? What's happening in this case ? Does cFile always receive the path of file from queue set up in route ?

2) In cJavaDSL Processor below code is mentioned

.handleFault().routePolicy(maxInflightPolicy).threads(15).maxPoolSize(25)

Question: What's the purpose of this code ?  I'm not able to find these method anywhere online. Could please anyone help to understand this ?

3) In cSetHeader component follow details are mentioned

Name(MessageInterface)  Language(Constant) value("0") 

Question: This component is setting header with a name of MessageInterface and value is "0". What does it means ? What's a purpose behind that ?

Thanks in advance...!

[Anonymous]

Hello,

We have redirected your issue to our ESB experts and will keep you posted.

Thanks for your time.

Best regards

Sabrina

[Anonymous]

Please review http://camel.apache.org/routepolicy.html

Thomas