Merge pull request #420 from MUzairS15/MUzairS15/utility

Add utility functions for type casting

broker/nats/error.go

@@ -5,11 +5,11 @@ import (
 )
 
 const (
-	ErrConnectCode        = "11000"
-	ErrEncodedConnCode    = "11000"
-	ErrPublishCode        = "11001"
-	ErrPublishRequestCode = "11001"
-	ErrQueueSubscribeCode = "11001"
+	ErrConnectCode        = "11103"
+	ErrEncodedConnCode    = "11104"
+	ErrPublishCode        = "11105"
+	ErrPublishRequestCode = "11101"
+	ErrQueueSubscribeCode = "11102"
 )
 
 func ErrConnect(err error) error {

helpers/component_info.json

@@ -0,0 +1,5 @@
+{
+  "name": "meshkit",
+  "type": "library",
+  "next_error_code": 11106
+}

utils/error.go

@@ -1,6 +1,7 @@
 package utils
 
 import (
+	"fmt"
 	"reflect"
 	"strconv"
 
@@ -28,6 +29,7 @@ var (
 	ErrYamlToCueCode                 = "11086"
 	ErrJsonSchemaToCueCode           = "11087"
 	ErrCueLookupCode                 = "11089"
+	ErrTypeCastCode                  = "11100"
 )
 
 func ErrCueLookup(err error) error {
@@ -108,3 +110,7 @@ func ErrGettingLatestReleaseTag(err error) error {
 		[]string{"Make sure Github is reachable", "Make sure a valid response is available on github.com/<org>/<repo>/releases/stable"},
 	)
 }
+
+func ErrTypeCast(valType string) error {
+	return errors.New(ErrTypeCastCode, errors.Alert, []string{"invaid type assertion requested"}, []string{fmt.Sprintf("The underlying type of the interface is %s", valType)}, []string{"The interface type is not compatible with the request type cast"}, []string{"use correct data type for type casting"})
+}

utils/utils.go

@@ -10,6 +10,7 @@ import (
 	"os"
 	"os/user"
 	"path/filepath"
+	"reflect"
 	"regexp"
 	"runtime"
 	"strconv"
@@ -245,3 +246,25 @@ func Contains[G []K, K comparable](slice G, ele K) bool {
 	}
 	return false
 }
+
+
+func Cast[K any](val interface{}) (K, error) {
+	assertedValue, ok := val.(K)
+	if !ok {
+		return assertedValue, ErrTypeCast(reflect.TypeOf(val).Name())
+	}
+	return assertedValue, nil
+}
+
+func MarshalAndUnmarshal[fromType any, toType any](val fromType) (unmarshalledvalue toType, err error){
+	data, err := Marshal(val)
+	if err != nil {
+		return
+	}
+
+	err = Unmarshal(data, &unmarshalledvalue)
+	if err != nil {
+		return
+	}
+	return
+}