Added functions to retrieve all values for an attribute at key

Author: pradeephkcisco

attribute.go

@@ -17,3 +17,36 @@ func (vals Values) Get(k string) string {
 	}
 	return ""
 }
+
+//GetSize returns the number of values for an attribute at a key.
+//Returns '0' in case of error or if key is not found.
+func (vals Values) GetSize(k string) int {
+    if vals == nil {
+        return 0
+    }
+
+	v, ok := vals[k]
+    if ok {
+        return len(v.Values)
+    }
+
+    return 0
+}
+
+//GetAll returns all the values for an attribute at a key.
+//Returns an empty slice in case of error of if key is not found.
+func (vals Values) GetAll(k string) []string {
+    var av []string
+
+    if vals == nil {
+        return av
+    }
+
+    if v, ok := vals[k]; ok && len(v.Values) > 0 {
+        for i := 0; i < len(v.Values); i++ {
+            av = append(av, string(v.Values[i].Value))
+        }
+    }
+
+    return av
+}