Connecting couchbase with camel

I am trying to connect to couchbase through with following customroute configuration in java

                            from("cxfrs://bean://rsServer")
                   .choice()
                   .when(header("operationName").isEqualTo("getCity"))
                   .setHeader(CouchbaseConstants.HEADER_ID,constant("#"))
                   .to("couchbase:http://"couchbase-ip"/Hotels?operation='GET'")
                   .end()
                   .marshal().json(JsonLibrary.Jackson);

I want to give path param for my rest service to be provided as document id for retrieval from couchbase. Problem is Output returned is Arraylist of whatever is my path param.