Github user venkateshs commented on a diff in the pull request:
https://github.com/apache/storm/pull/862#discussion_r44347530
--- Diff:
storm-core/src/jvm/backtype/storm/nimbus/ITopologyActionNotifierPlugin.java ---
@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 backtype.storm.nimbus;
+
+import java.util.Map;
+
+/**
+ * A plugin interface that gets invoked any time there is an action for a
topology.
+ */
+public interface ITopologyActionNotifierPlugin {
+ /**
+ * Called once during nimbus initialization.
+ * @param StormConf
+ */
+ void prepare(Map StormConf);
+
+ /**
+ * When a new actions is executed for a topology, this method will be
called.
+ * @param topologyName
+ * @param action
+ */
+ void notify(String topologyName, String action);
--- End diff --
Is topologyName and topology ID the same?
Should action be an enum?
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