upd: data/file updated

framework metadata updated

data/framework/metadata/handler.go

@@ -0,0 +1,192 @@
+/*
+|--------------------------------------------------------------------------
+| Description
+|--------------------------------------------------------------------------
+|
+| Name:
+|   - Handler
+|
+| Purpose:
+|   - Provides access to embedded framework metadata resources through
+|	resource-specific retrieval and parsing logic.
+|
+|--------------------------------------------------------------------------
+*/
+
+/*
+|--------------------------------------------------------------------------
+| Credit
+|--------------------------------------------------------------------------
+|
+| Contributor:
+|   - Rajon Ahmed
+|   - Blockonite
+|
+|--------------------------------------------------------------------------
+*/
+
+package metadata
+
+import (
+	"embed"
+	"encoding/json"
+	"sync"
+
+	"go/module/essential/visible/service/helper/retriever"
+)
+
+// ObrimHandlerResource is the registered JSON resource identifier.
+const ObrimHandlerResource = "framework/metadata"
+
+// Success result codes.
+const (
+	ObrimHandlerCodeSuccessLoaded = "SUCCESS_RESOURCE_LOADED"
+)
+
+// Failure result codes.
+const (
+	ObrimHandlerCodeFailureNotFound = "FAILURE_RESOURCE_NOT_FOUND"
+	ObrimHandlerCodeFailureLoad     = "FAILURE_RESOURCE_LOAD"
+	ObrimHandlerCodeFailureParse    = "FAILURE_RESOURCE_PARSE"
+)
+
+// handlerResourceFile is the embedded JSON resource filename.
+const handlerResourceFile = "resource.json"
+
+// handlerEmbeddedResource stores the embedded JSON resource.
+//
+//go:embed resource.json
+var handlerEmbeddedResource embed.FS
+
+// obrimHandlerCacheMutex protects the resource cache.
+var obrimHandlerCacheMutex sync.RWMutex
+
+// obrimHandlerCachedResource stores the parsed resource for the application lifetime.
+var obrimHandlerCachedResource map[string]any
+
+// ObrimHandlerPayload defines the successful payload structure.
+type ObrimHandlerPayload struct {
+	Resource string         `json:"resource"`
+	Data     map[string]any `json:"data"`
+}
+
+// ObrimHandlerOutput defines the standardized utility output.
+type ObrimHandlerOutput struct {
+	Status  bool                  `json:"status"`
+	Code    string                `json:"code"`
+	Payload *ObrimHandlerPayload  `json:"payload"`
+}
+
+// ObrimHandlerJson registers the JSON handler callback with Retriever.
+func ObrimHandlerJson() {
+	retriever.ObrimRetrieverJsonRegister(
+		ObrimHandlerResource,
+		obrimHandlerFetch,
+	)
+}
+
+// obrimHandler is the internal handler entry function.
+func obrimHandler() ObrimHandlerOutput {
+	return obrimHandlerFetch()
+}
+
+// obrimHandlerFetch loads, parses, caches, and returns the complete JSON resource.
+func obrimHandlerFetch() ObrimHandlerOutput {
+	if cached, ok := obrimHandlerCache(); ok {
+		return obrimHandlerOutput(
+			true,
+			ObrimHandlerCodeSuccessLoaded,
+			cached,
+		)
+	}
+
+	data, err := obrimHandlerLoad()
+	if err != nil {
+		return obrimHandlerOutput(
+			false,
+			ObrimHandlerCodeFailureLoad,
+			nil,
+		)
+	}
+
+	resource, err := obrimHandlerParse(data)
+	if err != nil {
+		return obrimHandlerOutput(
+			false,
+			ObrimHandlerCodeFailureParse,
+			nil,
+		)
+	}
+
+	obrimHandlerCache(resource)
+
+	return obrimHandlerOutput(
+		true,
+		ObrimHandlerCodeSuccessLoaded,
+		resource,
+	)
+}
+
+// obrimHandlerCache retrieves or stores the parsed JSON resource cache.
+func obrimHandlerCache(resource ...map[string]any) (map[string]any, bool) {
+	obrimHandlerCacheMutex.Lock()
+	defer obrimHandlerCacheMutex.Unlock()
+
+	switch len(resource) {
+	case 0:
+		if obrimHandlerCachedResource == nil {
+			return nil, false
+		}
+		return obrimHandlerCachedResource, true
+
+	default:
+		obrimHandlerCachedResource = resource[0]
+		return obrimHandlerCachedResource, true
+	}
+}
+
+// obrimHandlerEmbed returns the embedded JSON resource filesystem.
+func obrimHandlerEmbed() embed.FS {
+	return handlerEmbeddedResource
+}
+
+// obrimHandlerLoad loads the embedded JSON resource.
+func obrimHandlerLoad() ([]byte, error) {
+	return obrimHandlerEmbed().ReadFile(handlerResourceFile)
+}
+
+// obrimHandlerParse parses the embedded JSON resource.
+func obrimHandlerParse(data []byte) (map[string]any, error) {
+	resource := make(map[string]any)
+
+	if err := json.Unmarshal(data, &resource); err != nil {
+		return nil, err
+	}
+
+	return resource, nil
+}
+
+// obrimHandlerOutput builds the standardized utility output.
+func obrimHandlerOutput(
+	status bool,
+	code string,
+	resource map[string]any,
+) ObrimHandlerOutput {
+
+	if !status || resource == nil {
+		return ObrimHandlerOutput{
+			Status:  false,
+			Code:    code,
+			Payload: nil,
+		}
+	}
+
+	return ObrimHandlerOutput{
+		Status: true,
+		Code:   code,
+		Payload: &ObrimHandlerPayload{
+			Resource: ObrimHandlerResource,
+			Data:     resource,
+		},
+	}
+}

data/framework/metadata/resource.json

@@ -0,0 +1,8 @@
+{
+  "framework": {
+    "regular": "Framework Regular",
+    "lower": "frameworklower",
+    "upper": "FRAMEWORKUPPER",
+    "version": "0.0.0"
+  }
+}