| /* |
| * 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.phoenix.spark |
| |
| import org.apache.spark.sql.sources.{BaseRelation, CreatableRelationProvider, RelationProvider} |
| import org.apache.spark.sql.{DataFrame, SQLContext, SaveMode} |
| |
| @deprecated("Use the DataSource V2 API implementation (see PhoenixDataSource)") |
| class DefaultSource extends RelationProvider with CreatableRelationProvider { |
| |
| // Override 'RelationProvider.createRelation', this enables DataFrame.load() |
| override def createRelation(sqlContext: SQLContext, parameters: Map[String, String]): BaseRelation = { |
| verifyParameters(parameters) |
| |
| new PhoenixRelation( |
| parameters("table"), |
| parameters("zkUrl"), |
| parameters.contains("dateAsTimestamp") |
| )(sqlContext) |
| } |
| |
| // Override 'CreatableRelationProvider.createRelation', this enables DataFrame.save() |
| override def createRelation(sqlContext: SQLContext, mode: SaveMode, |
| parameters: Map[String, String], data: DataFrame): BaseRelation = { |
| |
| if (!mode.equals(SaveMode.Overwrite)) { |
| throw new Exception("SaveMode other than SaveMode.OverWrite is not supported") |
| } |
| |
| verifyParameters(parameters) |
| |
| // Save the DataFrame to Phoenix |
| data.saveToPhoenix(parameters) |
| |
| // Return a relation of the saved data |
| createRelation(sqlContext, parameters) |
| } |
| |
| // Ensure the required parameters are present |
| def verifyParameters(parameters: Map[String, String]): Unit = { |
| if (parameters.get("table").isEmpty) throw new RuntimeException("No Phoenix 'table' option defined") |
| if (parameters.get("zkUrl").isEmpty) throw new RuntimeException("No Phoenix 'zkUrl' option defined") |
| } |
| |
| } |