ONOS-5726: augmented implementation of "showIntent" overlay support.
- added acceptIntent() callback hook, to allow overlays to declare which intent types they can display.
Change-Id: I18d0b6f05b0a348623bd5a90d58d996d389bdd95
diff --git a/core/api/src/main/java/org/onosproject/ui/topo/AbstractTopoMonitor.java b/core/api/src/main/java/org/onosproject/ui/topo/AbstractTopoMonitor.java
new file mode 100644
index 0000000..e6b7cfa
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/topo/AbstractTopoMonitor.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2017-present 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.ui.topo;
+
+/**
+ * Base class for the business logic of topology overlay "monitors".
+ */
+public class AbstractTopoMonitor {
+
+ // TODO: pull common code up into this class
+
+ // Note to Andrea:
+ // this class has to be defined in the core.api module, because
+ // external applications may want to extend it.
+}