com.holdenkarau.spark.testing.SparkContextProvider.scala Maven / Gradle / Ivy
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/*
* 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 com.holdenkarau.spark.testing
import org.apache.spark.SparkContext
import org.apache.spark.SparkConf
trait SparkContextProvider {
def sc: SparkContext
def appID: String = (this.getClass.getName
+ math.floor(math.random * 10E4).toLong.toString)
def appName: String = {
"test"
}
def conf: SparkConf = {
new SparkConf().
setMaster("local[*]").
setAppName(appName).
set("spark.ui.enabled", "false").
set("spark.app.id", appID).
set("spark.driver.host", "localhost").
set("spark.eventLog.enabled", sys.env.getOrElse("SPARK_EVENTLOG", "false"))
}
/**
* Setup work to be called when creating a new SparkContext. Default implementation
* currently sets a checkpoint directory.
*
* This _should_ be called by the context provider automatically.
*/
def setup(sc: SparkContext): Unit = {
sc.setCheckpointDir(Utils.createTempDir().toPath().toString)
}
}