/*
 * 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.fakesource

import org.apache.spark.sql.SQLContext
import org.apache.spark.sql.sources.{BaseRelation, DataSourceRegister, RelationProvider}
import org.apache.spark.sql.types._


// Note that the package name is intentionally mismatched in order to resemble external data sources
// and test the detection for them.
class FakeExternalSourceOne extends RelationProvider with DataSourceRegister {

  def shortName(): String = "Fake external source"

  override def createRelation(cont: SQLContext, param: Map[String, String]): BaseRelation =
    new BaseRelation {
      override def sqlContext: SQLContext = cont

      override def schema: StructType =
        StructType(Seq(StructField("stringType", StringType, nullable = false)))
    }
}

class FakeExternalSourceTwo extends RelationProvider with DataSourceRegister {

  def shortName(): String = "Fake external source"

  override def createRelation(cont: SQLContext, param: Map[String, String]): BaseRelation =
    new BaseRelation {
      override def sqlContext: SQLContext = cont

      override def schema: StructType =
        StructType(Seq(StructField("integerType", IntegerType, nullable = false)))
    }
}

class FakeExternalSourceThree extends RelationProvider with DataSourceRegister {

  def shortName(): String = "datasource"

  override def createRelation(cont: SQLContext, param: Map[String, String]): BaseRelation =
    new BaseRelation {
      override def sqlContext: SQLContext = cont

      override def schema: StructType =
        StructType(Seq(StructField("byteType", ByteType, nullable = false)))
    }
}
