Renamed *NetworkGraph* references to *Topology*.
Change-Id: Iec01c47086e1518592c0753e75395d3fe5abcde3
diff --git a/src/main/java/net/onrc/onos/core/topology/TopologyDiscoveryInterface.java b/src/main/java/net/onrc/onos/core/topology/TopologyDiscoveryInterface.java
new file mode 100644
index 0000000..16d8af1
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/topology/TopologyDiscoveryInterface.java
@@ -0,0 +1,67 @@
+package net.onrc.onos.core.topology;
+
+import java.util.Collection;
+
+/**
+ * Interface used by the Topology Discovery module to write topology-related
+ * events.
+ */
+public interface TopologyDiscoveryInterface {
+ /**
+ * Switch discovered event.
+ *
+ * @param switchEvent the switch event.
+ * @param portEvents the corresponding port events for the switch.
+ */
+ public void putSwitchDiscoveryEvent(SwitchEvent switchEvent,
+ Collection<PortEvent> portEvents);
+
+ /**
+ * Switch removed event.
+ *
+ * @param switchEvent the switch event.
+ */
+ public void removeSwitchDiscoveryEvent(SwitchEvent switchEvent);
+
+ /**
+ * Port discovered event.
+ *
+ * @param portEvent the port event.
+ */
+ public void putPortDiscoveryEvent(PortEvent portEvent);
+
+ /**
+ * Port removed event.
+ *
+ * @param portEvent the port event.
+ */
+ public void removePortDiscoveryEvent(PortEvent portEvent);
+
+ /**
+ * Link discovered event.
+ *
+ * @param linkEvent the link event.
+ */
+ public void putLinkDiscoveryEvent(LinkEvent linkEvent);
+
+ /**
+ * Link removed event.
+ *
+ * @param linkEvent the link event.
+ */
+ public void removeLinkDiscoveryEvent(LinkEvent linkEvent);
+
+ /**
+ * Device discovered event.
+ *
+ * @param deviceEvent the device event.
+ */
+ public void putDeviceDiscoveryEvent(DeviceEvent deviceEvent);
+
+ /**
+ * Device removed event.
+ *
+ * @param deviceEvent the device event.
+ */
+ public void removeDeviceDiscoveryEvent(DeviceEvent deviceEvent);
+}