add convenience method for casting payloads

internal/processor/artnet-packet-decode.go

@@ -13,7 +13,7 @@ type ArtNetPacketDecode struct {
 }
 
 func (apd *ArtNetPacketDecode) Process(ctx context.Context, payload any) (any, error) {
-	payloadBytes, ok := payload.([]byte)
+	payloadBytes, ok := GetAnyAs[[]byte](payload)
 
 	if !ok {
 		return nil, fmt.Errorf("artnet.packet.decode processor only accepts a []byte")

internal/processor/artnet-packet-encode.go

@@ -13,7 +13,7 @@ type ArtNetPacketEncode struct {
 }
 
 func (ape *ArtNetPacketEncode) Process(ctx context.Context, payload any) (any, error) {
-	payloadPacket, ok := payload.(artnet.ArtNetPacket)
+	payloadPacket, ok := GetAnyAs[artnet.ArtNetPacket](payload)
 
 	if !ok {
 		return nil, fmt.Errorf("artnet.packet.encode processor only accepts an ArtNetPacket")

internal/processor/artnet-packet-filter.go

@@ -14,7 +14,7 @@ type ArtNetPacketFilter struct {
 }
 
 func (apf *ArtNetPacketFilter) Process(ctx context.Context, payload any) (any, error) {
-	payloadPacket, ok := payload.(artnet.ArtNetPacket)
+	payloadPacket, ok := GetAnyAs[artnet.ArtNetPacket](payload)
 
 	if !ok {
 		return nil, fmt.Errorf("artnet.packet.filter processor only accepts an ArtNetPacket")

internal/processor/float-parse.go

@@ -15,7 +15,7 @@ type FloatParse struct {
 }
 
 func (fp *FloatParse) Process(ctx context.Context, payload any) (any, error) {
-	payloadString, ok := payload.(string)
+	payloadString, ok := GetAnyAs[string](payload)
 
 	if !ok {
 		return nil, errors.New("float.parse processor only accepts a string")

internal/processor/free-d-decode.go

@@ -13,7 +13,7 @@ type FreeDDecode struct {
 }
 
 func (fdd *FreeDDecode) Process(ctx context.Context, payload any) (any, error) {
-	payloadBytes, ok := payload.([]byte)
+	payloadBytes, ok := GetAnyAs[[]byte](payload)
 
 	if !ok {
 		return nil, errors.New("freed.decode processor only accepts a []byte")

internal/processor/free-d-encode.go

@@ -13,7 +13,7 @@ type FreeDEncode struct {
 }
 
 func (fde *FreeDEncode) Process(ctx context.Context, payload any) (any, error) {
-	payloadPosition, ok := payload.(freeD.FreeDPosition)
+	payloadPosition, ok := GetAnyAs[freeD.FreeDPosition](payload)
 
 	if !ok {
 		return nil, errors.New("freed.decode processor only accepts a FreeDEncode")

internal/processor/http-request-filter.go

@@ -18,7 +18,7 @@ type HTTPRequestFilter struct {
 
 func (hrf *HTTPRequestFilter) Process(ctx context.Context, payload any) (any, error) {
 
-	payloadRequest, ok := payload.(*http.Request)
+	payloadRequest, ok := GetAnyAs[*http.Request](payload)
 
 	if !ok {
 		return nil, errors.New("http.request.filter can only operate on http.Request payloads")

internal/processor/int-parse.go

@@ -16,7 +16,7 @@ type IntParse struct {
 }
 
 func (ip *IntParse) Process(ctx context.Context, payload any) (any, error) {
-	payloadString, ok := payload.(string)
+	payloadString, ok := GetAnyAs[string](payload)
 
 	if !ok {
 		return nil, errors.New("int.parse processor only accepts a string")

internal/processor/json-decode.go

@@ -13,7 +13,7 @@ type JsonDecode struct {
 }
 
 func (jd *JsonDecode) Process(ctx context.Context, payload any) (any, error) {
-	payloadString, ok := payload.(string)
+	payloadString, ok := GetAnyAs[string](payload)
 
 	if !ok {
 		return nil, errors.New("json.decode processor only accepts a string")

internal/processor/midi-message-decode.go

@@ -15,7 +15,7 @@ type MIDIMessageDecode struct {
 }
 
 func (mmd *MIDIMessageDecode) Process(ctx context.Context, payload any) (any, error) {
-	payloadBytes, ok := payload.([]byte)
+	payloadBytes, ok := GetAnyAs[[]byte](payload)
 
 	if !ok {
 		return nil, errors.New("midi.message.decode processor only accepts a []byte")

internal/processor/midi-message-encode.go

@@ -15,7 +15,7 @@ type MIDIMessageEncode struct {
 }
 
 func (mme *MIDIMessageEncode) Process(ctx context.Context, payload any) (any, error) {
-	payloadMessage, ok := payload.(midi.Message)
+	payloadMessage, ok := GetAnyAs[midi.Message](payload)
 
 	if !ok {
 		return nil, errors.New("midi.message.encode processor only accepts a midi.Message")

internal/processor/midi-message-filter.go

@@ -17,7 +17,7 @@ type MIDIMessageFilter struct {
 }
 
 func (mmf *MIDIMessageFilter) Process(ctx context.Context, payload any) (any, error) {
-	payloadMessage, ok := payload.(midi.Message)
+	payloadMessage, ok := GetAnyAs[midi.Message](payload)
 
 	if !ok {
 		return nil, errors.New("midi.message.filter processor only accepts a midi.Message")

internal/processor/midi-message-unpack.go

@@ -45,7 +45,7 @@ type MIDIPitchBend struct {
 }
 
 func (mmu *MIDIMessageUnpack) Process(ctx context.Context, payload any) (any, error) {
-	payloadMidi, ok := payload.(midi.Message)
+	payloadMidi, ok := GetAnyAs[midi.Message](payload)
 
 	if !ok {
 		return nil, errors.New("midi.message.unpack processor only accepts a midi.Message")

internal/processor/mqtt-message-create.go

@@ -104,11 +104,11 @@ func init() {
 				return nil, errors.New("mqtt.message.create payload error: not found")
 			}
 
-			if payloadBytes, ok := payload.([]byte); ok {
+			if payloadBytes, ok := GetAnyAs[[]byte](payload); ok {
 				return &MQTTMessageCreate{config: config, Topic: topicString, QoS: byte(qosByte), Retained: retainedBool, Payload: payloadBytes}, nil
 			}
 
-			payloadString, ok := payload.(string)
+			payloadString, ok := GetAnyAs[string](payload)
 
 			if !ok {
 				return nil, errors.New("mqtt.message.create payload error: not a string or byte array")

internal/processor/mqtt-message-encode.go

@@ -13,7 +13,7 @@ type MQTTMessageEncode struct {
 }
 
 func (mme *MQTTMessageEncode) Process(ctx context.Context, payload any) (any, error) {
-	payloadMessage, ok := payload.(mqtt.Message)
+	payloadMessage, ok := GetAnyAs[mqtt.Message](payload)
 
 	if !ok {
 		return nil, errors.New("mqtt.message.encode processor only accepts an mqtt.Message")

internal/processor/osc-message-decode.go

@@ -13,7 +13,7 @@ type OSCMessageDecode struct {
 }
 
 func (omd *OSCMessageDecode) Process(ctx context.Context, payload any) (any, error) {
-	payloadBytes, ok := payload.([]byte)
+	payloadBytes, ok := GetAnyAs[[]byte](payload)
 
 	if !ok {
 		return nil, errors.New("osc.message.decode processor only accepts a []byte payload")

internal/processor/osc-message-encode.go

@@ -13,7 +13,7 @@ type OSCMessageEncode struct {
 }
 
 func (ome *OSCMessageEncode) Process(ctx context.Context, payload any) (any, error) {
-	payloadMessage, ok := payload.(osc.OSCMessage)
+	payloadMessage, ok := GetAnyAs[osc.OSCMessage](payload)
 
 	if !ok {
 		return nil, errors.New("osc.message.encode processor only accepts an OSCMessage")

internal/processor/osc-message-filter.go

@@ -18,7 +18,7 @@ type OSCMessageFilter struct {
 
 func (omf *OSCMessageFilter) Process(ctx context.Context, payload any) (any, error) {
 
-	payloadMessage, ok := payload.(osc.OSCMessage)
+	payloadMessage, ok := GetAnyAs[osc.OSCMessage](payload)
 
 	if !ok {
 		return nil, errors.New("osc.message.filter can only operate on OSCMessage payloads")

internal/processor/processor.go

@@ -40,3 +40,8 @@ var (
 	processorRegistryMu sync.RWMutex
 	ProcessorRegistry   = make(map[string]ProcessorRegistration)
 )
+
+func GetAnyAs[T any](p any) (T, bool) {
+	typed, ok := p.(T)
+	return typed, ok
+}

internal/processor/script-wasm.go

@@ -17,7 +17,7 @@ type ScriptWASM struct {
 
 func (se *ScriptWASM) Process(ctx context.Context, payload any) (any, error) {
 
-	payloadBytes, ok := payload.([]byte)
+	payloadBytes, ok := GetAnyAs[[]byte](payload)
 
 	if !ok {
 		return nil, fmt.Errorf("script.wasm can only operator on byte array")

internal/processor/string-decode.go

@@ -12,7 +12,7 @@ type StringDecode struct {
 }
 
 func (sd *StringDecode) Process(ctx context.Context, payload any) (any, error) {
-	payloadBytes, ok := payload.([]byte)
+	payloadBytes, ok := GetAnyAs[[]byte](payload)
 
 	if !ok {
 		return nil, errors.New("string.decode processor only accepts a []byte")

internal/processor/string-encode.go

@@ -12,7 +12,7 @@ type StringEncode struct {
 }
 
 func (se *StringEncode) Process(ctx context.Context, payload any) (any, error) {
-	payloadString, ok := payload.(string)
+	payloadString, ok := GetAnyAs[string](payload)
 
 	if !ok {
 		return nil, errors.New("string.encode processor only accepts a string")

internal/processor/string-filter.go

@@ -15,7 +15,7 @@ type StringFilter struct {
 }
 
 func (sf *StringFilter) Process(ctx context.Context, payload any) (any, error) {
-	payloadString, ok := payload.(string)
+	payloadString, ok := GetAnyAs[string](payload)
 
 	if !ok {
 		return nil, errors.New("string.filter processor only accepts a string")

internal/processor/string-split.go

@@ -15,7 +15,7 @@ type StringSplit struct {
 }
 
 func (ss *StringSplit) Process(ctx context.Context, payload any) (any, error) {
-	payloadString, ok := payload.(string)
+	payloadString, ok := GetAnyAs[string](payload)
 
 	if !ok {
 		return nil, errors.New("string.split only accepts a string")

internal/processor/uint-parse.go

@@ -16,7 +16,7 @@ type UintParse struct {
 }
 
 func (up *UintParse) Process(ctx context.Context, payload any) (any, error) {
-	payloadString, ok := payload.(string)
+	payloadString, ok := GetAnyAs[string](payload)
 
 	if !ok {
 		return nil, errors.New("uint.parse processor only accepts a string")