How can I create an HTTP proxy using SwitchYard composite in FSW ?

Issue

• How can we create an HTTP proxy application in FSW ?
• After some discussion we came up with two solutions:
  1. SY service (HTTP-binding) -> Camel route -> SY reference (HTTP-binding)
  2. SY service (HTTP-binding) -> Camel route that actually routes to the HTTP-service provider
• However, there are considerations about the solutions:
  1. SY service (HTTP-binding) -> Camel route -> SY reference (HTTP-binding):
     In this case the default HTTP binding component in SwitchYard will not work. The main problem is that we must have the possibility to change/construct the URL dynamically to the service-provider.
  2. SY service (HTTP-binding) -> Camel route that actually routes to the HTTP-service provider:
     In this case the routing is done via the camel-http component or camel-jetty component. As far as we can understand this solutions requires that we install those Camel components in SwitchYard.
• More concrete examples:
  1. Example a http-service-proxy: http://proxy-host/http/download?filename=test.txt
     SY service (HTTP-binding): context-path = http/download
     SY reference (HTTP-binding): address = service-provider-host/http/download
     Problem: How do we pass along the queryString = filename=test.txt ?
  2. Example a rest-service-proxy: http://proxy-host/rest/customerservice/customer/10
Content-type = application/json or Content-type = application/xml
     SY service (HTTP-binding): context-path = rest/customerservice
     SY reference (HTTP-binding): address = service-provider-host/rest/customerservice
     Problem: How do we pass along the pathInfo = customer/10 and the Content-type ?