com.samelamin.spark.bigquery.DataFrameWriterFunctions.scala Maven / Gradle / Ivy
/*
* Copyright (c) 2015 Samelamin.
*
* Licensed 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 com.samelamin.spark.bigquery
import org.apache.spark.sql.{DataFrameWriter, Row}
class DataFrameWriterFunctions(@transient val dfw: DataFrameWriter[Row]) extends Serializable {
/**
* The classpath to the default source (which in turn results in a BigQuery Source )
*/
private val source = "com.samelamin.spark.bigquery.DefaultSource"
/**
* Stores the current DataFrame in the only open bucket.
*/
def bigquery(options: Map[String, String] = null): Unit = writeFrame(options)
/**
* Helper method to write the current DataFrame to bigquery.
*/
private def writeFrame(options: Map[String, String] = null): Unit = {
val builder = dfw
.format(source)
if (options != null) {
builder.options(options)
}
builder.save()
}
}