+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.protocol_plugin.openflow.internal;
+
+import org.apache.felix.dm.Component;
+import org.opendaylight.controller.protocol_plugin.openflow.IFlowProgrammerNotifier;
+import org.opendaylight.controller.sal.core.Node;
+import org.opendaylight.controller.sal.flowprogrammer.Flow;
+import org.opendaylight.controller.sal.flowprogrammer.IPluginOutFlowProgrammerService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Flow Programmer Notifier class for relaying asynchronous messages received
+ * from the network node to the listeners on the proper container
+ */
+public class FlowProgrammerNotifier implements IFlowProgrammerNotifier {
+ protected static final Logger logger = LoggerFactory
+ .getLogger(FlowProgrammerNotifier.class);
+ private IPluginOutFlowProgrammerService salNotifier;
+
+ public FlowProgrammerNotifier() {
+ salNotifier = null;
+ }
+
+ void init(Component c) {
+ logger.debug("INIT called!");
+ }
+
+ /**
+ * Function called by the dependency manager when at least one dependency
+ * become unsatisfied or when the component is shutting down because for
+ * example bundle is being stopped.
+ *
+ */
+ void destroy() {
+ logger.debug("DESTROY called!");
+ }
+
+ /**
+ * Function called by dependency manager after "init ()" is called and after
+ * the services provided by the class are registered in the service registry
+ *
+ */
+ void start() {
+ logger.debug("START called!");
+ }
+
+ /**
+ * Function called by the dependency manager before the services exported by
+ * the component are unregistered, this will be followed by a "destroy ()"
+ * calls
+ *
+ */
+ void stop() {
+ logger.debug("STOP called!");
+ }
+
+ public void setPluginOutFlowProgrammerService(
+ IPluginOutFlowProgrammerService s) {
+ this.salNotifier = s;
+ }
+
+ public void unsetPluginOutFlowProgrammerService(
+ IPluginOutFlowProgrammerService s) {
+ if (this.salNotifier == s) {
+ this.salNotifier = null;
+ }
+ }
+
+ @Override
+ public void flowRemoved(Node node, Flow flow) {
+ if (salNotifier != null) {
+ salNotifier.flowRemoved(node, flow);
+ } else {
+ logger.warn("Unable to relay switch message to upper layer");
+ }
+ }
+
+}