| /* |
| * 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.griffin.measure.datasource.cache |
| |
| import org.apache.spark.sql._ |
| |
| import org.apache.griffin.measure.datasource.TimestampStorage |
| |
| /** |
| * data source cache in json format |
| */ |
| case class StreamingCacheJsonClient( |
| sparkSession: SparkSession, |
| param: Map[String, Any], |
| dsName: String, |
| index: Int, |
| timestampStorage: TimestampStorage) |
| extends StreamingCacheClient { |
| |
| protected def writeDataFrame(dfw: DataFrameWriter[Row], path: String): Unit = { |
| info(s"write path: $path") |
| dfw.json(path) |
| } |
| |
| protected def readDataFrame(dfr: DataFrameReader, path: String): DataFrame = { |
| dfr.json(path) |
| } |
| |
| } |