Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/4210#discussion_r23579066
--- Diff: core/src/main/java/org/apache/spark/SparkFirehoseListener.java ---
@@ -0,0 +1,114 @@
+/*
+ * 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 org.apache.spark;
+
+import org.apache.spark.scheduler.*;
+
+/**
+ * Class that allows users to receive all SparkListener events.
+ * Users should override the onEvent method.
+ *
+ * This is a concrete class instead of abstract to enforce
+ * new events get added to both the SparkListener and this adapter
+ * in lockstep.
+ */
+public class SparkFirehoseListener implements SparkListener {
+
+ public void onEvent(SparkListenerEvent event) { }
+
+ @Override
+ public final void onStageCompleted(SparkListenerStageCompleted
stageCompleted) {
+ onEvent(stageCompleted);
+ }
+
+ @Override
+ public final void onStageSubmitted(SparkListenerStageSubmitted
stageSubmitted) {
+ onEvent(stageSubmitted);
+ }
+
+ @Override
+ public final void onTaskStart(SparkListenerTaskStart taskStart) {
+ onEvent(taskStart);
+ }
+
+ @Override
+ public final void onTaskGettingResult(SparkListenerTaskGettingResult
taskGettingResult) {
+ onEvent(taskGettingResult);
+ }
+
+ @Override
+ public final void onTaskEnd(SparkListenerTaskEnd taskEnd) {
+ onEvent(taskEnd);
+ }
+
+ @Override
+ public final void onJobStart(SparkListenerJobStart jobStart) {
+ onEvent(jobStart);
+ }
+
+ @Override
+ public final void onJobEnd(SparkListenerJobEnd jobEnd) {
+ onEvent(jobEnd);
+ }
+
+ @Override
+ public final void onEnvironmentUpdate(SparkListenerEnvironmentUpdate
environmentUpdate) {
+ onEvent(environmentUpdate);
+ }
+
+ @Override
+ public final void onBlockManagerAdded(SparkListenerBlockManagerAdded
blockManagerAdded) {
+ onEvent(blockManagerAdded);
+ }
+
+ @Override
+ public final void
onBlockManagerRemoved(SparkListenerBlockManagerRemoved blockManagerRemoved) {
+ onEvent(blockManagerRemoved);
+ }
+
+ @Override
+ public final void onUnpersistRDD(SparkListenerUnpersistRDD
unpersistRDD) {
+ onEvent(unpersistRDD);
+ }
+
+ @Override
+ public final void onApplicationStart(SparkListenerApplicationStart
applicationStart) {
+ onEvent(applicationStart);
+ }
+
+ @Override
+ public final void onApplicationEnd(SparkListenerApplicationEnd
applicationEnd) {
+ onEvent(applicationEnd);
+ }
+
+ @Override
+ public final void onExecutorMetricsUpdate(
+ SparkListenerExecutorMetricsUpdate executorMetricsUpdate) {
+ onEvent(executorMetricsUpdate);
+ }
+
+ @Override
+ public final void onExecutorAdded(SparkListenerExecutorAdded
executorAdded) {
--- End diff --
If this is going to go into 1.2.1, then we'll have to remove this method on
commit.
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