org.apache.hadoop.util.Progressable Scala Examples

The following examples show how to use org.apache.hadoop.util.Progressable. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.
Example 1
Source File: DeltaOutputFormat.scala    From connectors   with Apache License 2.0 5 votes vote down vote up 
package io.delta.hive

import org.apache.hadoop.fs.FileSystem
import org.apache.hadoop.io.{ArrayWritable, NullWritable}
import org.apache.hadoop.mapred.{JobConf, OutputFormat, RecordWriter}
import org.apache.hadoop.util.Progressable


class DeltaOutputFormat extends OutputFormat[NullWritable, ArrayWritable] {

  private def writingNotSupported[T](): T = {
    throw new UnsupportedOperationException(
      "Writing to a Delta table in Hive is not supported. Please use Spark to write.")
  }

  override def getRecordWriter(
    ignored: FileSystem,
    job: JobConf,
    name: String,
    progress: Progressable): RecordWriter[NullWritable, ArrayWritable] = writingNotSupported()

  override def checkOutputSpecs(ignored: FileSystem, job: JobConf): Unit = writingNotSupported()
}
Example 2
Source File: ByteArrayOutputFormat.scala    From hail   with MIT License 5 votes vote down vote up 
package is.hail.io.hadoop

import java.io.DataOutputStream

import org.apache.hadoop.fs._
import org.apache.hadoop.io._
import org.apache.hadoop.mapred._
import org.apache.hadoop.util.Progressable

class ByteArrayOutputFormat extends FileOutputFormat[NullWritable, BytesOnlyWritable] {

  class ByteArrayRecordWriter(out: DataOutputStream) extends RecordWriter[NullWritable, BytesOnlyWritable] {

    def write(key: NullWritable, value: BytesOnlyWritable) {
      if (value != null)
        value.write(out)
    }

    def close(reporter: Reporter) {
      out.close()
    }
  }

  override def getRecordWriter(ignored: FileSystem, job: JobConf,
    name: String, progress: Progressable): RecordWriter[NullWritable, BytesOnlyWritable] = {
    val file: Path = FileOutputFormat.getTaskOutputPath(job, name)
    val fs: FileSystem = file.getFileSystem(job)
    val fileOut: FSDataOutputStream = fs.create(file, progress)
    new ByteArrayRecordWriter(fileOut)
  }
}