org.apache.phoenix.spark.ProductRDDFunctions.scala Maven / Gradle / Ivy
/*
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 org.apache.phoenix.spark
import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.io.NullWritable
import org.apache.phoenix.mapreduce.PhoenixOutputFormat
import org.apache.phoenix.mapreduce.util.PhoenixConfigurationUtil
import org.apache.spark.rdd.RDD
import scala.collection.JavaConversions._
class ProductRDDFunctions[A <: Product](data: RDD[A]) extends Serializable {
def saveToPhoenix(tableName: String, cols: Seq[String],
conf: Configuration = new Configuration, zkUrl: Option[String] = None, tenantId: Option[String] = None)
: Unit = {
// Create a configuration object to use for saving
@transient val outConfig = ConfigurationUtil.getOutputConfiguration(tableName, cols, zkUrl, tenantId, Some(conf))
// Retrieve the zookeeper URL
val zkUrlFinal = ConfigurationUtil.getZookeeperURL(outConfig)
// Map the row objects into PhoenixRecordWritable
val phxRDD = data.mapPartitions{ rows =>
// Create a within-partition config to retrieve the ColumnInfo list
@transient val partitionConfig = ConfigurationUtil.getOutputConfiguration(tableName, cols, zkUrlFinal, tenantId)
@transient val columns = PhoenixConfigurationUtil.getUpsertColumnMetadataList(partitionConfig).toList
rows.map { row =>
val rec = new PhoenixRecordWritable(columns)
row.productIterator.foreach { e => rec.add(e) }
(null, rec)
}
}
// Save it
phxRDD.saveAsNewAPIHadoopFile(
"",
classOf[NullWritable],
classOf[PhoenixRecordWritable],
classOf[PhoenixOutputFormat[PhoenixRecordWritable]],
outConfig
)
}
}