1 files changed, 58 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/openflow/api/src/main/java/org/onosproject/openflow/controller/OpenFlowSwitchListener.java b/framework/src/onos/protocols/openflow/api/src/main/java/org/onosproject/openflow/controller/OpenFlowSwitchListener.java
new file mode 100644
index 00000000..2da41335
--- /dev/null
+++ b/framework/src/onos/protocols/openflow/api/src/main/java/org/onosproject/openflow/controller/OpenFlowSwitchListener.java
@@ -0,0 +1,58 @@
+/*
+ * 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.onosproject.openflow.controller;
+
+import org.projectfloodlight.openflow.protocol.OFPortStatus;
+
+/**
+ * Allows for providers interested in Switch events to be notified.
+ */
+public interface OpenFlowSwitchListener {
+
+    /**
+     * Notify that the switch was added.
+     * @param dpid the switch where the event occurred
+     */
+    void switchAdded(Dpid dpid);
+
+    /**
+     * Notify that the switch was removed.
+     * @param dpid the switch where the event occurred.
+     */
+    void switchRemoved(Dpid dpid);
+
+    /**
+     * Notify that the switch has changed in some way.
+     * @param dpid the switch that changed
+     */
+    void switchChanged(Dpid dpid);
+
+    /**
+     * Notify that a port has changed.
+     * @param dpid the switch on which the change happened.
+     * @param status the new state of the port.
+     */
+    void portChanged(Dpid dpid, OFPortStatus status);
+
+    /**
+     * Notify that a role imposed on a switch failed to take hold.
+     *
+     * @param dpid the switch that failed role assertion
+     * @param requested the role controller requested
+     * @param response role reply from the switch
+     */
+    void receivedRoleReply(Dpid dpid, RoleState requested, RoleState response);
+}