/* | |
* 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.druid.spark.utils | |
import org.apache.druid.common.config.{NullHandling, NullValueHandlingConfig} | |
/** | |
* Utility class for initializing a Druid NullValueHandlingConfig. In a Druid cluster, this is handled via injection | |
* and in unit tests default value null handling is initialized via NullHandling.initializeForTests(), but we need | |
* to use reflection here to handle the case where we want to set SQL-compatible null handling. | |
*/ | |
object NullHandlingUtils { | |
def initializeDruidNullHandling(useDruidDefaultHandling: Boolean): Unit = { | |
if (useDruidDefaultHandling) { | |
NullHandling.initializeForTests() | |
} else { | |
val nullHandlingConfig = new NullValueHandlingConfig(false) | |
val instanceField = classOf[NullHandling].getDeclaredField("INSTANCE") | |
instanceField.setAccessible(true) | |
instanceField.set(null, nullHandlingConfig) // scalastyle:ignore null | |
} | |
} | |
} |