org.apache.hudi.HoodieSparkUtils.scala Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
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 * 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
 *
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package org.apache.hudi

import org.apache.hadoop.fs.{FileSystem, Path}
import org.apache.hudi.common.model.HoodieRecord
import org.apache.spark.deploy.SparkHadoopUtil
import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.execution.datasources.{FileStatusCache, InMemoryFileIndex}
import org.apache.spark.sql.types.{StringType, StructField, StructType}
import scala.collection.JavaConverters._


object HoodieSparkUtils {

  def getMetaSchema: StructType = {
    StructType(HoodieRecord.HOODIE_META_COLUMNS.asScala.map(col => {
      StructField(col, StringType, nullable = true)
    }))
  }

  def checkAndGlobPathIfNecessary(paths: Seq[String], fs: FileSystem): Seq[Path] = {
    paths.flatMap(path => {
      val qualified = new Path(path).makeQualified(fs.getUri, fs.getWorkingDirectory)
      val globPaths = SparkHadoopUtil.get.globPathIfNecessary(fs, qualified)
      globPaths
    })
  }

  def createInMemoryFileIndex(sparkSession: SparkSession, globbedPaths: Seq[Path]): InMemoryFileIndex = {
    val fileStatusCache = FileStatusCache.getOrCreate(sparkSession)
    new InMemoryFileIndex(sparkSession, globbedPaths, Map(), Option.empty, fileStatusCache)
  }
}