Move adsal into its own subdirectory.

[controller.git] / opendaylight / adsal / northbound / commons / src / main / java / org / opendaylight / controller / northbound / commons / query / Accessor.java

diff --git a/opendaylight/adsal/northbound/commons/src/main/java/org/opendaylight/controller/northbound/commons/query/Accessor.java b/opendaylight/adsal/northbound/commons/src/main/java/org/opendaylight/controller/northbound/commons/query/Accessor.java
new file mode 100644 (file)
index 0000000..2d910ed
--- /dev/null
+++ b/opendaylight/adsal/northbound/commons/src/main/java/org/opendaylight/controller/northbound/commons/query/Accessor.java
@@ -0,0 +1,55 @@
+package org.opendaylight.controller.northbound.commons.query;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Type;
+
+/*package*/ class Accessor {
+    protected final AccessibleObject _accessorObj;
+
+    public Accessor(AccessibleObject accessor) {
+        _accessorObj = accessor;
+        _accessorObj.setAccessible(true);
+    }
+
+    public AccessibleObject getAccessibleObject() {
+        return _accessorObj;
+    }
+
+    public Annotation[] getAnnotations() {
+        return _accessorObj.getAnnotations();
+    }
+
+    public Object getValue(Object parent) throws QueryException {
+        try {
+            if (_accessorObj instanceof Field) {
+                return ((Field)_accessorObj).get(parent);
+            } else {
+                // assume method
+                return ((Method)_accessorObj).invoke(parent);
+            }
+        } catch (Exception e) {
+            throw new QueryException("Failure in retrieving value", e);
+        }
+    }
+    public Type getGenericType() {
+        if (_accessorObj instanceof Field) {
+            return ((Field)_accessorObj).getGenericType();
+        } else {
+            // assume method
+            return ((Method)_accessorObj).getGenericReturnType();
+        }
+    }
+    public Class<?> getType() {
+
+        if (_accessorObj instanceof Field) {
+            return ((Field)_accessorObj).getType();
+        } else {
+            // assume method
+            return ((Method)_accessorObj).getReturnType();
+        }
+    }
+
+}