Add Mycilla code to odlguice

[odlguice.git] / inject / inject-guice-extensions / jsr250 / src / main / java / org / opendaylight / odlguice / inject / guice / extensions / jsr250 / Jsr250PostConstructHandler.java

diff --git a/inject/inject-guice-extensions/jsr250/src/main/java/org/opendaylight/odlguice/inject/guice/extensions/jsr250/Jsr250PostConstructHandler.java b/inject/inject-guice-extensions/jsr250/src/main/java/org/opendaylight/odlguice/inject/guice/extensions/jsr250/Jsr250PostConstructHandler.java
new file mode 100755 (executable)
index 0000000..48616e3
--- /dev/null
+++ b/inject/inject-guice-extensions/jsr250/src/main/java/org/opendaylight/odlguice/inject/guice/extensions/jsr250/Jsr250PostConstructHandler.java
@@ -0,0 +1,53 @@
+/*
+ * 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.jsr250;
+
+import com.google.inject.Injector;
+import com.google.inject.Key;
+import com.google.inject.Provider;
+import com.google.inject.TypeLiteral;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.List;
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+import org.opendaylight.odlguice.inject.guice.extensions.injection.MethodHandler;
+import org.opendaylight.odlguice.inject.guice.extensions.injection.MethodInvoker;
+import org.opendaylight.odlguice.inject.guice.extensions.injection.Reflect;
+
+/**
+ * This code originated in https://github.com/mycila/guice and was forked into
+ * OpenDaylight.
+ * @author Mathieu Carbou (mathieu.carbou@gmail.com)
+ */
+class Jsr250PostConstructHandler implements MethodHandler<PostConstruct> {
+
+    @Inject
+    Provider<Injector> injector;
+
+    @Override
+    public void handle(TypeLiteral<?> type, Object instance, Method method, PostConstruct annotation) {
+        if (!Modifier.isStatic(method.getModifiers())) {
+            List<Key<?>> parameterKeys = Reflect.getParameterKeys(type, method);
+            Object[] parameters = new Object[parameterKeys.size()];
+            for (int i = 0; i < parameters.length; i++) {
+                parameters[i] = injector.get().getProvider(parameterKeys.get(i)).get();
+            }
+            MethodInvoker.on(method).invoke(instance, parameters);
+        }
+    }
+
+}