Need to resolve the JavaDSL problem

[j_pramanik_ind <ja...@gmail.com>]

Hi,

I'm new in Apache Camel. I'm using Camel 2.14.2. Here is a typical problem
that I'm facing while using Apache Camel in one of my project -

There are currently four layers :

 UI layer, Channel Manager Layer, Camel EIP Layer with JavaDSL & CoreApp
Layer.

1. UI will initiate rest call to Channel Manager layer.
2. ChannelManager delegates call to EIP layer. 
3. Camel EIP layer take a decision on the basis of the call

    For e.g. - if the REST call is like below - 
   
*https://localhost:8643/CamelRouterApp/service/proxyService/checkOperation/actionLevel=LOCAL|activityCode=LOGIN|method=AuthenticateUser*

    Using JavaDSL it invokes RouteBuilder -

     public String start(String moduleName, String authcode, String
operationvalues){
		try{
	    	    CamelContext context = new DefaultCamelContext();		   
	    	    context.addRoutes(new IntegrationRoute(moduleName, authcode,
operationvalues));
	    	    context.start();
		    Thread.sleep(1000);   /// need to make wait the thread for 1000 ms
		    Map<String, String> map = context.getProperties();
		    data = map.get("1");			   
		    context.stop();			
		}catch(Exception ex1){
			ex1.printStackTrace();
		}		
		return data;
	}



    it returns as below -
*    <PROXYOPERATIONS>
	  <oprnvalue>LOCAL</oprnvalue>
   </PROXYOPERATIONS>*

   I used following code to take decision -
 
public void configure() throws Exception {	

    from(proxyURL)
	        .choice()
	             .when(xpath("//oprnvalue = 'LOCAL'"))	
	                        .process(new
RESTRequestProcessor(authcode,operationvalues))
 	                            	     
			     .when(xpath("//oprnvalue = 'REMOTE'"))
		                 .process(new
RESTRequestProcessor(authcode,operationvalues))
			     
		             .otherwise()
                                .log("NO VALID CALL !!");
   }


4. Accordingly it invokes processor that returns through Exchange
properties.

     public void process(Exchange data) throws Exception {
              . . . 
              . . . . .   [call to inner CoreApp  layer and return data]

              Map<String, String> map = new HashMap<String, String>();
		map.put("1",result);
	
		data.getContext().setProperties(map);
     }

*PROBLEM is here some times data return is taking little bit more time and
Camel returns null. 
Repeated try from front-end makes Camel to fetch some data. 
*

/This is only due to slowness of my CoreApp inner layer processing. But I
can not change that immediately. Rather I'm looking for different solution
with Camel. Can I use REST DSL to directly call inner layer RESTful service
? And of course the decision making part should be there LOCAL or REMOTE or
BOTH. /

Can anybody please enlight on this problem or guide me what to do and how
with Apache Camel 2.14 ?

Thanks in advance.

Regards,


Jay








    



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