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/*
* Copyright (c) 2022 AtLarge Research
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.opendc.trace.util.parquet
import org.apache.hadoop.conf.Configuration
import org.apache.parquet.hadoop.ParquetWriter
import org.apache.parquet.hadoop.api.WriteSupport
import org.apache.parquet.io.OutputFile
import java.nio.file.Path
/**
* Helper class for writing Parquet records to local disk.
*/
public class LocalParquetWriter {
/**
* A [ParquetWriter.Builder] implementation supporting custom [OutputFile]s and [WriteSupport] implementations.
*/
public class Builder<T> internal constructor(
output: OutputFile,
private val writeSupport: WriteSupport<T>,
) : ParquetWriter.Builder<T, Builder<T>>(output) {
override fun self(): Builder<T> = this
override fun getWriteSupport(conf: Configuration): WriteSupport<T> = writeSupport
}
public companion object {
/**
* Create a [Builder] instance that writes a Parquet file at the specified [path].
*/
@JvmStatic
public fun <T> builder(
path: Path,
writeSupport: WriteSupport<T>,
): Builder<T> = Builder(LocalOutputFile(path), writeSupport)
}
}
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