From 6c25964c0165530e7db6650eea79cbac99031353 Mon Sep 17 00:00:00 2001 From: stuebinm Date: Sat, 2 Jul 2022 00:16:02 +0200 Subject: gtfs realtime proof of concept this adds a package for protobuf stuff, generated via hprotoc. Seems to work kinda fine? (the generated API is horrible though, will have to write some wrappers for that) --- gtfs/GTFS/Realtime/Position.hs | 112 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 gtfs/GTFS/Realtime/Position.hs (limited to 'gtfs/GTFS/Realtime/Position.hs') diff --git a/gtfs/GTFS/Realtime/Position.hs b/gtfs/GTFS/Realtime/Position.hs new file mode 100644 index 0000000..7cea83b --- /dev/null +++ b/gtfs/GTFS/Realtime/Position.hs @@ -0,0 +1,112 @@ +{-# LANGUAGE BangPatterns, DataKinds, DeriveDataTypeable, DeriveGeneric, FlexibleInstances, MultiParamTypeClasses, OverloadedStrings + #-} +{-# OPTIONS_GHC -w #-} +module GTFS.Realtime.Position (Position(..)) where +import Prelude ((+), (/), (++), (.), (==), (<=), (&&)) +import qualified Prelude as Prelude' +import qualified Data.List as Prelude' +import qualified Data.Typeable as Prelude' +import qualified GHC.Generics as Prelude' +import qualified Data.Data as Prelude' +import qualified Text.ProtocolBuffers.Header as P' + +data Position = Position{latitude :: !(P'.Float), longitude :: !(P'.Float), bearing :: !(P'.Maybe P'.Float), + odometer :: !(P'.Maybe P'.Double), speed :: !(P'.Maybe P'.Float), ext'field :: !(P'.ExtField)} + deriving (Prelude'.Show, Prelude'.Eq, Prelude'.Ord, Prelude'.Typeable, Prelude'.Data, Prelude'.Generic) + +instance P'.ExtendMessage Position where + getExtField = ext'field + putExtField e'f msg = msg{ext'field = e'f} + validExtRanges msg = P'.extRanges (P'.reflectDescriptorInfo msg) + +instance P'.Mergeable Position where + mergeAppend (Position x'1 x'2 x'3 x'4 x'5 x'6) (Position y'1 y'2 y'3 y'4 y'5 y'6) + = let !z'1 = P'.mergeAppend x'1 y'1 + !z'2 = P'.mergeAppend x'2 y'2 + !z'3 = P'.mergeAppend x'3 y'3 + !z'4 = P'.mergeAppend x'4 y'4 + !z'5 = P'.mergeAppend x'5 y'5 + !z'6 = P'.mergeAppend x'6 y'6 + in Position z'1 z'2 z'3 z'4 z'5 z'6 + +instance P'.Default Position where + defaultValue = Position P'.defaultValue P'.defaultValue P'.defaultValue P'.defaultValue P'.defaultValue P'.defaultValue + +instance P'.Wire Position where + wireSize ft' self'@(Position x'1 x'2 x'3 x'4 x'5 x'6) + = case ft' of + 10 -> calc'Size + 11 -> P'.prependMessageSize calc'Size + _ -> P'.wireSizeErr ft' self' + where + calc'Size + = (P'.wireSizeReq 1 2 x'1 + P'.wireSizeReq 1 2 x'2 + P'.wireSizeOpt 1 2 x'3 + P'.wireSizeOpt 1 1 x'4 + + P'.wireSizeOpt 1 2 x'5 + + P'.wireSizeExtField x'6) + wirePutWithSize ft' self'@(Position x'1 x'2 x'3 x'4 x'5 x'6) + = case ft' of + 10 -> put'Fields + 11 -> put'FieldsSized + _ -> P'.wirePutErr ft' self' + where + put'Fields + = P'.sequencePutWithSize + [P'.wirePutReqWithSize 13 2 x'1, P'.wirePutReqWithSize 21 2 x'2, P'.wirePutOptWithSize 29 2 x'3, + P'.wirePutOptWithSize 33 1 x'4, P'.wirePutOptWithSize 45 2 x'5, P'.wirePutExtFieldWithSize x'6] + put'FieldsSized + = let size' = Prelude'.fst (P'.runPutM put'Fields) + put'Size + = do + P'.putSize size' + Prelude'.return (P'.size'WireSize size') + in P'.sequencePutWithSize [put'Size, put'Fields] + wireGet ft' + = case ft' of + 10 -> P'.getBareMessageWith (P'.catch'Unknown' P'.discardUnknown update'Self) + 11 -> P'.getMessageWith (P'.catch'Unknown' P'.discardUnknown update'Self) + _ -> P'.wireGetErr ft' + where + update'Self wire'Tag old'Self + = case wire'Tag of + 13 -> Prelude'.fmap (\ !new'Field -> old'Self{latitude = new'Field}) (P'.wireGet 2) + 21 -> Prelude'.fmap (\ !new'Field -> old'Self{longitude = new'Field}) (P'.wireGet 2) + 29 -> Prelude'.fmap (\ !new'Field -> old'Self{bearing = Prelude'.Just new'Field}) (P'.wireGet 2) + 33 -> Prelude'.fmap (\ !new'Field -> old'Self{odometer = Prelude'.Just new'Field}) (P'.wireGet 1) + 45 -> Prelude'.fmap (\ !new'Field -> old'Self{speed = Prelude'.Just new'Field}) (P'.wireGet 2) + _ -> let (field'Number, wire'Type) = P'.splitWireTag wire'Tag in + if Prelude'.or [1000 <= field'Number && field'Number <= 1999, 9000 <= field'Number && field'Number <= 9999] then + P'.loadExtension field'Number wire'Type old'Self else P'.unknown field'Number wire'Type old'Self + +instance P'.MessageAPI msg' (msg' -> Position) Position where + getVal m' f' = f' m' + +instance P'.GPB Position + +instance P'.ReflectDescriptor Position where + getMessageInfo _ = P'.GetMessageInfo (P'.fromDistinctAscList [13, 21]) (P'.fromDistinctAscList [13, 21, 29, 33, 45]) + reflectDescriptorInfo _ + = Prelude'.read + "DescriptorInfo {descName = ProtoName {protobufName = FIName \".transit_realtime.Position\", haskellPrefix = [], parentModule = [MName \"GTFS\",MName \"Realtime\"], baseName = MName \"Position\"}, descFilePath = [\"GTFS\",\"Realtime\",\"Position.hs\"], isGroup = False, fields = fromList [FieldInfo {fieldName = ProtoFName {protobufName' = FIName \".transit_realtime.Position.latitude\", haskellPrefix' = [], parentModule' = [MName \"GTFS\",MName \"Realtime\",MName \"Position\"], baseName' = FName \"latitude\", baseNamePrefix' = \"\"}, fieldNumber = FieldId {getFieldId = 1}, wireTag = WireTag {getWireTag = 13}, packedTag = Nothing, wireTagLength = 1, isPacked = False, isRequired = True, canRepeat = False, mightPack = False, typeCode = FieldType {getFieldType = 2}, typeName = Nothing, hsRawDefault = Nothing, hsDefault = Nothing, isMapField = False, mapKeyVal = Nothing},FieldInfo {fieldName = ProtoFName {protobufName' = FIName \".transit_realtime.Position.longitude\", haskellPrefix' = [], parentModule' = [MName \"GTFS\",MName \"Realtime\",MName \"Position\"], baseName' = FName \"longitude\", baseNamePrefix' = \"\"}, fieldNumber = FieldId {getFieldId = 2}, wireTag = WireTag {getWireTag = 21}, packedTag = Nothing, wireTagLength = 1, isPacked = False, isRequired = True, canRepeat = False, mightPack = False, typeCode = FieldType {getFieldType = 2}, typeName = Nothing, hsRawDefault = Nothing, hsDefault = Nothing, isMapField = False, mapKeyVal = Nothing},FieldInfo {fieldName = ProtoFName {protobufName' = FIName \".transit_realtime.Position.bearing\", haskellPrefix' = [], parentModule' = [MName \"GTFS\",MName \"Realtime\",MName \"Position\"], baseName' = FName \"bearing\", baseNamePrefix' = \"\"}, fieldNumber = FieldId {getFieldId = 3}, wireTag = WireTag {getWireTag = 29}, packedTag = Nothing, wireTagLength = 1, isPacked = False, isRequired = False, canRepeat = False, mightPack = False, typeCode = FieldType {getFieldType = 2}, typeName = Nothing, hsRawDefault = Nothing, hsDefault = Nothing, isMapField = False, mapKeyVal = Nothing},FieldInfo {fieldName = ProtoFName {protobufName' = FIName \".transit_realtime.Position.odometer\", haskellPrefix' = [], parentModule' = [MName \"GTFS\",MName \"Realtime\",MName \"Position\"], baseName' = FName \"odometer\", baseNamePrefix' = \"\"}, fieldNumber = FieldId {getFieldId = 4}, wireTag = WireTag {getWireTag = 33}, packedTag = Nothing, wireTagLength = 1, isPacked = False, isRequired = False, canRepeat = False, mightPack = False, typeCode = FieldType {getFieldType = 1}, typeName = Nothing, hsRawDefault = Nothing, hsDefault = Nothing, isMapField = False, mapKeyVal = Nothing},FieldInfo {fieldName = ProtoFName {protobufName' = FIName \".transit_realtime.Position.speed\", haskellPrefix' = [], parentModule' = [MName \"GTFS\",MName \"Realtime\",MName \"Position\"], baseName' = FName \"speed\", baseNamePrefix' = \"\"}, fieldNumber = FieldId {getFieldId = 5}, wireTag = WireTag {getWireTag = 45}, packedTag = Nothing, wireTagLength = 1, isPacked = False, isRequired = False, canRepeat = False, mightPack = False, typeCode = FieldType {getFieldType = 2}, typeName = Nothing, hsRawDefault = Nothing, hsDefault = Nothing, isMapField = False, mapKeyVal = Nothing}], descOneofs = fromList [], keys = fromList [], extRanges = [(FieldId {getFieldId = 1000},FieldId {getFieldId = 1999}),(FieldId {getFieldId = 9000},FieldId {getFieldId = 9999})], knownKeys = fromList [], storeUnknown = False, lazyFields = False, makeLenses = False, jsonInstances = False, mapEntry = False}" + +instance P'.TextType Position where + tellT = P'.tellSubMessage + getT = P'.getSubMessage + +instance P'.TextMsg Position where + textPut msg + = do + P'.tellT "latitude" (latitude msg) + P'.tellT "longitude" (longitude msg) + P'.tellT "bearing" (bearing msg) + P'.tellT "odometer" (odometer msg) + P'.tellT "speed" (speed msg) + textGet + = do + mods <- P'.sepEndBy (P'.choice [parse'latitude, parse'longitude, parse'bearing, parse'odometer, parse'speed]) P'.spaces + Prelude'.return (Prelude'.foldl' (\ v f -> f v) P'.defaultValue mods) + where + parse'latitude = Prelude'.fmap (\ v o -> o{latitude = v}) (P'.try (P'.getT "latitude")) + parse'longitude = Prelude'.fmap (\ v o -> o{longitude = v}) (P'.try (P'.getT "longitude")) + parse'bearing = Prelude'.fmap (\ v o -> o{bearing = v}) (P'.try (P'.getT "bearing")) + parse'odometer = Prelude'.fmap (\ v o -> o{odometer = v}) (P'.try (P'.getT "odometer")) + parse'speed = Prelude'.fmap (\ v o -> o{speed = v}) (P'.try (P'.getT "speed")) \ No newline at end of file -- cgit v1.2.3