Merge "Add Mycilla code to odlguice"

[odlguice.git] / inject / inject-guice-extensions / injection / src / main / java / org / opendaylight / odlguice / inject / guice / extensions / injection / KeyProviderSkeleton.java

diff --git a/inject/inject-guice-extensions/injection/src/main/java/org/opendaylight/odlguice/inject/guice/extensions/injection/KeyProviderSkeleton.java b/inject/inject-guice-extensions/injection/src/main/java/org/opendaylight/odlguice/inject/guice/extensions/injection/KeyProviderSkeleton.java
new file mode 100755 (executable)
index 0000000..c4869fe
--- /dev/null
+++ b/inject/inject-guice-extensions/injection/src/main/java/org/opendaylight/odlguice/inject/guice/extensions/injection/KeyProviderSkeleton.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2010 Mycila (mathieu.carbou@gmail.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.opendaylight.odlguice.inject.guice.extensions.injection;
+
+import com.google.inject.Key;
+import com.google.inject.TypeLiteral;
+import com.google.inject.internal.Annotations;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.List;
+
+/**
+ * This code originated in https://github.com/mycila/guice and was forked into
+ * OpenDaylight.
+ * @author Mathieu Carbou (mathieu.carbou@gmail.com)
+ */
+public abstract class KeyProviderSkeleton<A extends Annotation> implements KeyProvider<A> {
+
+    @Override
+    public Key<?> getKey(TypeLiteral<?> injectedType, Field injectedMember, A resourceAnnotation) {
+        for (Annotation annotation : injectedMember.getAnnotations()) {
+            if (Annotations.isBindingAnnotation(annotation.annotationType())) {
+                return Key.get(injectedType.getFieldType(injectedMember), annotation);
+            }
+        }
+        return Key.get(injectedType.getFieldType(injectedMember));
+    }
+
+    @Override
+    public List<Key<?>> getParameterKeys(TypeLiteral<?> injectedType, Method injectedMember, A resourceAnnotation) {
+        return Reflect.getParameterKeys(injectedType, injectedMember);
+    }
+
+}