Github user jackylk commented on a diff in the pull request: https://github.com/apache/carbondata/pull/2328#discussion_r196089005 --- Diff: integration/spark2/src/main/scala/org/apache/carbondata/stream/StreamJobManager.scala --- @@ -0,0 +1,185 @@ +/* + * 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.carbondata.stream + +import java.util.concurrent.{ConcurrentHashMap, CountDownLatch, TimeUnit} + +import scala.collection.JavaConverters._ + +import org.apache.spark.sql.{DataFrame, SparkSession} +import org.apache.spark.sql.streaming.StreamingQuery +import org.apache.spark.sql.types.{StructField, StructType} + +import org.apache.carbondata.common.exceptions.NoSuchStreamException +import org.apache.carbondata.common.exceptions.sql.MalformedCarbonCommandException +import org.apache.carbondata.common.logging.LogServiceFactory +import org.apache.carbondata.core.metadata.schema.table.CarbonTable +import org.apache.carbondata.spark.StreamingOption +import org.apache.carbondata.spark.util.CarbonScalaUtil +import org.apache.carbondata.streaming.CarbonStreamException +import org.apache.carbondata.streaming.parser.CarbonStreamParser + +object StreamJobManager { + private val LOGGER = LogServiceFactory.getLogService(this.getClass.getCanonicalName) + + // map of stream name to job desc + private val jobs = new ConcurrentHashMap[String, StreamJobDesc]() + + private def validateStreamName(streamName: String): Unit = { + if (StreamJobManager.getAllJobs.exists(_.streamName.equalsIgnoreCase(streamName))) { --- End diff -- fixed
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