spark StreamingQueryHistoryServerPlugin 源码
spark StreamingQueryHistoryServerPlugin 代码
文件路径：/sql/core/src/main/scala/org/apache/spark/sql/execution/ui/StreamingQueryHistoryServerPlugin.scala
/*
* 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.
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package org.apache.spark.sql.execution.ui
import org.apache.spark.SparkConf
import org.apache.spark.scheduler.SparkListener
import org.apache.spark.sql.execution.streaming.StreamingQueryListenerBus
import org.apache.spark.sql.streaming.ui.{StreamingQueryStatusListener, StreamingQueryTab}
import org.apache.spark.status.{AppHistoryServerPlugin, ElementTrackingStore}
import org.apache.spark.ui.SparkUI
class StreamingQueryHistoryServerPlugin extends AppHistoryServerPlugin {
override def createListeners(conf: SparkConf, store: ElementTrackingStore): Seq[SparkListener] = {
val listenerBus = new StreamingQueryListenerBus(None)
listenerBus.addListener(new StreamingQueryStatusListener(conf, store))
Seq(listenerBus)
}
override def setupUI(ui: SparkUI): Unit = {
val streamingQueryStatusStore = new StreamingQueryStatusStore(ui.store.store)
if (streamingQueryStatusStore.allQueryUIData.nonEmpty) {
new StreamingQueryTab(streamingQueryStatusStore, ui)
}
}
override def displayOrder: Int = 1
}
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