1 files changed, 34 insertions, 0 deletions
diff --git a/framework/src/onos/utils/osgi/src/main/java/org/onlab/osgi/ServiceDirectory.java b/framework/src/onos/utils/osgi/src/main/java/org/onlab/osgi/ServiceDirectory.java
new file mode 100644
index 00000000..f9ffed74
--- /dev/null
+++ b/framework/src/onos/utils/osgi/src/main/java/org/onlab/osgi/ServiceDirectory.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2014-2015 Open Networking Laboratory
+ *
+ * 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.onlab.osgi;
+
+/**
+ * Simple abstraction of a service directory where service implementations can
+ * be found by the class name of the interfaces they provide.
+ */
+public interface ServiceDirectory {
+
+    /**
+     * Returns implementation of the specified service class.
+     *
+     * @param serviceClass service class
+     * @param <T>          type of service
+     * @return implementation class
+     * @throws ServiceNotFoundException if no implementation found
+     */
+    <T> T get(Class<T> serviceClass);
+
+}