How to read header of type java Map in choice block

[santoshkeleti]

hi All,

I have a situation where i have a header of type Map. based on the value of
key=3 i need to route the massage to different URIs.
i.e.
from("file:/home/santoshkeleti/Desktop/Camel/input?noop=true")
  .to("http://"+conncterURL+"iso/parse?isoMsg="+iso).process(new Processor()
{
                        @Override
                        public void process(Exchange exchange) throws Exception 
{
                                map=exchange.getIn().getBody(String.class);
                                exchange.getIn().setHeader("map", map);
                exchange.getIn().setHeader("isoMap", new
GsonBuilder().create().fromJson(map, Map.class));
                }
                }).choice()
                 .when(((Map)header("isoMap")).gety(3).equals("21300")
        
.toD("http://localhost:8080/CBS/iso/fundTransferISO?isoMsgMap=${header.map}";);


But i am getting Error like can not cast valueBuilder to map.

Please provide me a solution. please 




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