vcl 4.0;
# This is a basic VCL configuration file for varnish.  See the vcl(7)
# man page for details on VCL syntax and semantics.
# 
# Default backend definition.  Set this to point to your content
# server.
# 
backend default {
    .host = "127.0.0.1";
    .port = "8080";
}

backend blazegraph {
    .host = "127.0.0.1";
    .port = "9999";
}

acl purge {
    "127.0.0.1";
}
 
# 
# Below is a commented-out copy of the default VCL logic.  If you
# redefine any of these subroutines, the built-in logic will be
# appended to your code.
sub vcl_recv {
  set req.backend_hint = default;
  if (req.method == "PURGE") {
    if (client.ip !~ purge) {
      return(synth(405,"Not allowed."));
    }
    return(hash);
  }
  if(req.method != "GET" && req.method != "OPTION") {
    return(pass);
  }
  if(req.url ~ "^/bigdata/") {
    set req.backend_hint = blazegraph;
	set req.http.X-BIGDATA-MAX-QUERY-MILLIS = "30000";
    return(pass);
  }
  
  return (hash);
}

sub vcl_backend_fetch {
	if(bereq.backend != default && bereq.method != "GET" && bereq.method != "OPTION") {
		return(abandon);
	}
    return (fetch);
}