Added ability to remove host by CLI and by the provider on device/port down events.

Change-Id: I28de4b6b5bbfb5a00f35e1808bcd916369d7d1a4
diff --git a/utils/osgi/src/test/java/org/onlab/osgi/ComponentContextAdapter.java b/utils/osgi/src/test/java/org/onlab/osgi/ComponentContextAdapter.java
new file mode 100644
index 0000000..0278ccd
--- /dev/null
+++ b/utils/osgi/src/test/java/org/onlab/osgi/ComponentContextAdapter.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2014 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;
+
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
+import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.ComponentInstance;
+
+import java.util.Dictionary;
+
+/**
+ * Adapter implementation of OSGI component context.
+ */
+public class ComponentContextAdapter implements ComponentContext {
+    @Override
+    public Dictionary getProperties() {
+        return null;
+    }
+
+    @Override
+    public Object locateService(String name) {
+        return null;
+    }
+
+    @Override
+    public Object locateService(String name, ServiceReference reference) {
+        return null;
+    }
+
+    @Override
+    public Object[] locateServices(String name) {
+        return new Object[0];
+    }
+
+    @Override
+    public BundleContext getBundleContext() {
+        return null;
+    }
+
+    @Override
+    public Bundle getUsingBundle() {
+        return null;
+    }
+
+    @Override
+    public ComponentInstance getComponentInstance() {
+        return null;
+    }
+
+    @Override
+    public void enableComponent(String name) {
+
+    }
+
+    @Override
+    public void disableComponent(String name) {
+
+    }
+
+    @Override
+    public ServiceReference getServiceReference() {
+        return null;
+    }
+}
diff --git a/utils/pom.xml b/utils/pom.xml
index f46bc61..29afe1a 100644
--- a/utils/pom.xml
+++ b/utils/pom.xml
@@ -46,6 +46,11 @@
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.compendium</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>