ceph/src/jaegertracing/thrift/tutorial/hs/HaskellClient.hs

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  10 --   http://www.apache.org/licenses/LICENSE-2.0
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  12 -- Unless required by applicable law or agreed to in writing,
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  15 -- KIND, either express or implied. See the License for the
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  17 -- under the License.
  18 --
  19
  20 import qualified Calculator
  21 import qualified Calculator_Client as Client
  22 import qualified SharedService_Client as SClient
  23 import Tutorial_Types
  24 import SharedService_Iface
  25 import Shared_Types
  26
  27 import Thrift
  28 import Thrift.Protocol.Binary
  29 import Thrift.Transport
  30 import Thrift.Transport.Handle
  31 import Thrift.Server
  32
  33 import Control.Exception
  34 import Data.Maybe
  35 import Data.Text.Lazy
  36 import Text.Printf
  37 import Network
  38
  39 main = do
  40   transport  <- hOpen ("localhost", PortNumber 9090)
  41   let binProto = BinaryProtocol transport
  42   let client = (binProto, binProto)
  43
  44   Client.ping client
  45   print "ping()"
  46
  47   sum <- Client.add client 1 1
  48   printf "1+1=%d\n" sum
  49
  50
  51   let work = Work { work_op = DIVIDE,
  52                     work_num1 = 1,
  53                     work_num2 = 0,
  54                     work_comment = Nothing
  55                   }
  56
  57   Control.Exception.catch (printf "1/0=%d\n" =<< Client.calculate client 1 work)
  58         (\e -> printf "InvalidOperation %s\n" (show (e :: InvalidOperation)))
  59
  60
  61   let work = Work { work_op = SUBTRACT,
  62                     work_num1 = 15,
  63                     work_num2 = 10,
  64                     work_comment = Nothing
  65                   }
  66
  67   diff <- Client.calculate client 1 work
  68   printf "15-10=%d\n" diff
  69
  70   log <- SClient.getStruct client 1
  71   printf "Check log: %s\n" $ unpack $ sharedStruct_value log
  72
  73   -- Close!
  74   tClose transport
  75
  76