feature: add ConfigsWithSourceNames() function (#131)

* feature: add ConfigsWithSourceNames() function, which returns all the key values along with its source, extra details can be used for debugging.

* edit test case.

Co-authored-by: Guang Yang <[email protected]>

archaius.go

@@ -227,6 +227,16 @@ func GetConfigs() map[string]interface{} {
 	return manager.Configs()
 }
 
+// GetConfigsWithSourceNames gives the information about all configurations
+// each config key, along with its source will be returned
+// the returned map will be like:
+// map[string]interface{}{
+// 		key string: map[string]interface{"value": value, "sourceName": sourceName}
+// }
+func GetConfigsWithSourceNames() map[string]interface{} {
+	return manager.ConfigsWithSourceNames()
+}
+
 // AddDimensionInfo adds a NewDimensionInfo of which configurations needs to be taken
 func AddDimensionInfo(labels map[string]string) (map[string]string, error) {
 	config, err := manager.AddDimensionInfo(labels)

archaius_test.go

@@ -94,6 +94,15 @@ func TestConfig_Get(t *testing.T) {
 	m := archaius.GetConfigs()
 	t.Log(m)
 	assert.Equal(t, 1, m["number"])
+
+	// case: view config keys and its original source
+	// context: archaius is initialized and has config key: "number", value: 1 from source: FileSource
+	// expected result: able to get config key and its original source
+	t.Run("get all configs along with source", func(t *testing.T) {
+		c1 := archaius.GetConfigsWithSourceNames()
+		assert.Equal(t, 1, c1["number"].(map[string]interface{})["value"])
+		assert.Equal(t, "FileSource", c1["number"].(map[string]interface{})["source"])
+	})
 }
 func TestConfig_GetInt(t *testing.T) {
 	s := archaius.GetInt("number", 0)

source/manager.go

@@ -201,6 +201,26 @@ func (m *Manager) Configs() map[string]interface{} {
 	return config
 }
 
+// ConfigsWithSourceNames returns all the key values along with its source name
+// the returned map will be like:
+// map[string]interface{}{
+// 		key string: map[string]interface{"value": value, "source": sourceName}
+// }
+func (m *Manager) ConfigsWithSourceNames() map[string]interface{} {
+	config := make(map[string]interface{}, 0)
+
+	m.ConfigurationMap.Range(func(key, value interface{}) bool {
+		sValue := m.configValueBySource(key.(string), value.(string))
+		if sValue == nil {
+			return true
+		}
+		// each key stores its value and source name
+		config[key.(string)] = map[string]interface{}{"value": sValue, "source": value}
+		return true
+	})
+	return config
+}
+
 // AddDimensionInfo adds the dimensionInfo to the list of which configurations needs to be pulled
 func (m *Manager) AddDimensionInfo(labels map[string]string) (map[string]string, error) {
 	config := make(map[string]string, 0)