tutorial/hs/HaskellClient.hs

--
-- Licensed to the Apache Software Foundation (ASF) under one
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-- to you under the Apache License, Version 2.0 (the
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--
--   http://www.apache.org/licenses/LICENSE-2.0
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import qualified Calculator
import qualified Calculator_Client as Client
import qualified SharedService_Client as SClient
import Tutorial_Types
import SharedService_Iface
import Shared_Types

import Thrift
import Thrift.Protocol.Binary
import Thrift.Transport
import Thrift.Transport.Handle
import Thrift.Server

import Data.Maybe
import Text.Printf
import Network

main = do
  transport  <- hOpen ("localhost", PortNumber 9090)
  let binProto = BinaryProtocol transport
  let client = (binProto, binProto)

  Client.ping client
  print "ping()"

  sum <- Client.add client 1 1
  printf "1+1=%d\n" sum


  let work = Work { f_Work_op = Just DIVIDE,
                    f_Work_num1 = Just 1,
                    f_Work_num2 = Just 0,
                    f_Work_comment = Nothing
                  }

  -- TODO - get this one working
  --catch (Client.calculate client 1 work) (\except ->
  --     printf "InvalidOp %s" (show except))


  let work = Work { f_Work_op = Just SUBTRACT,
                    f_Work_num1 = Just 15,
                    f_Work_num2 = Just 10,
                    f_Work_comment = Nothing
                  }

  diff <- Client.calculate client 1 work
  printf "15-10=%d\n" diff

  log <- SClient.getStruct client 1
  printf "Check log: %s\n"  $ fromJust $ f_SharedStruct_value log

  -- Close!
  tClose transport