scala - How to use double pipe as delimiter in CSV?

Scala - How to use double pipe as delimiter in CSV?

In Scala, when reading a CSV file with a custom delimiter such as a double pipe (||), you can specify the delimiter using the option("delimiter", "||") method when reading the file with Spark's DataFrameReader. Here's how you can do it:

import org.apache.spark.sql.SparkSession val spark = SparkSession.builder() .appName("ReadCSVWithDelimiter") .master("local[*]") .getOrCreate() // Read CSV file with double pipe (||) delimiter val df = spark.read .option("delimiter", "||") .csv("path/to/your/file.csv") // Show DataFrame df.show() // Stop SparkSession spark.stop()

In this example:

  • We specify the double pipe (||) delimiter using the option("delimiter", "||") method when reading the CSV file.
  • The csv method of DataFrameReader is used to read the CSV file.
  • The DataFrame df contains the data from the CSV file with the specified delimiter.
  • Finally, we display the DataFrame using the show method.
  • Replace "path/to/your/file.csv" with the actual path to your CSV file.

Ensure that the specified delimiter matches the delimiter used in your CSV file.

Examples

  1. Scala: Use Double Pipe as Delimiter in CSV with Spark

    Description: This query seeks a method to use a double pipe (||) as a delimiter in CSV files while reading them with Spark.

    val df = spark.read.option("delimiter", "||").csv("path/to/csv")

    This code specifies the double pipe (||) as the delimiter while reading a CSV file with Spark DataFrameReader.

  2. Scala: Use Double Pipe as Delimiter in CSV with Scala's CSV Reader

    Description: This query investigates using a double pipe (||) as a delimiter in CSV files while reading them with Scala's CSV reader.

    import scala.io.Source import scala.util.Using val delimiter = "\\|\\|" val lines = Using(Source.fromFile("path/to/csv")) { source => source.getLines().map(_.split(delimiter)) }

    This code uses Scala's Source and Using to read lines from a CSV file and splits them using the double pipe (||) delimiter.

  3. Scala: Use Double Pipe as Delimiter in CSV with Apache Commons CSV

    Description: This query seeks a method to use a double pipe (||) as a delimiter in CSV files while reading them with Apache Commons CSV library in Scala.

    import org.apache.commons.csv.CSVParser val delimiter = "||" val parser = CSVParser.parse(new File("path/to/csv"), Charset.defaultCharset(), CSVFormat.DEFAULT.withDelimiter(delimiter.charAt(0)))

    This code uses Apache Commons CSV to parse a CSV file with a double pipe (||) as the delimiter.

  4. Scala: Use Double Pipe as Delimiter in CSV with OpenCSV

    Description: This query investigates using a double pipe (||) as a delimiter in CSV files while reading them with OpenCSV library in Scala.

    import com.opencsv.CSVReader val delimiter = "||" val reader = new CSVReader(new FileReader("path/to/csv"), delimiter.charAt(0))

    This code uses OpenCSV library to read a CSV file with a double pipe (||) as the delimiter.

  5. Scala: Use Double Pipe as Delimiter in CSV with FS2

    Description: This query seeks a method to use a double pipe (||) as a delimiter in CSV files while reading them with FS2 library in Scala.

    import fs2.io.file.readAll import fs2.text import fs2.Stream val delimiter = "||" val csvStream: Stream[IO, String] = readAll[IO](Paths.get("path/to/csv"), 4096) .through(text.utf8Decode) .through(text.lines) .map(_.split(delimiter))

    This code uses FS2 library to read lines from a CSV file, split them using the double pipe (||) delimiter.

  6. Scala: Use Double Pipe as Delimiter in CSV with Java BufferedReader

    Description: This query investigates using a double pipe (||) as a delimiter in CSV files while reading them with Java's BufferedReader in Scala.

    import java.io.BufferedReader import java.io.FileReader val delimiter = "\\|\\|" val reader = new BufferedReader(new FileReader("path/to/csv")) val lines = Iterator.continually(reader.readLine()).takeWhile(_ != null).map(_.split(delimiter))

    This code uses Java's BufferedReader to read lines from a CSV file and splits them using the double pipe (||) delimiter.

  7. Scala: Use Double Pipe as Delimiter in CSV with Jackson CSV Parser

    Description: This query seeks a method to use a double pipe (||) as a delimiter in CSV files while reading them with Jackson CSV parser in Scala.

    import com.fasterxml.jackson.dataformat.csv.CsvMapper import com.fasterxml.jackson.dataformat.csv.CsvSchema val delimiter = "||" val mapper = new CsvMapper() val schema = CsvSchema.builder().setColumnSeparator(delimiter.charAt(0)).build() val it = mapper.readerFor(classOf[Array[String]]).with(schema).readValues(new File("path/to/csv"))

    This code uses Jackson CSV parser to parse a CSV file with a double pipe (||) as the delimiter.

  8. Scala: Use Double Pipe as Delimiter in CSV with Scanner

    Description: This query investigates using a double pipe (||) as a delimiter in CSV files while reading them with Java's Scanner in Scala.

    import java.util.Scanner import java.io.File val delimiter = "\\|\\|" val scanner = new Scanner(new File("path/to/csv")).useDelimiter(delimiter) val lines = Iterator.continually(scanner.nextLine()).takeWhile(_ != null).map(_.split(delimiter))

    This code uses Java's Scanner to read lines from a CSV file and splits them using the double pipe (||) delimiter.

  9. Scala: Use Double Pipe as Delimiter in CSV with Akka Stream

    Description: This query seeks a method to use a double pipe (||) as a delimiter in CSV files while reading them with Akka Stream library in Scala.

    import akka.actor.ActorSystem import akka.stream.scaladsl.{FileIO, Framing} import akka.util.ByteString implicit val system: ActorSystem = ActorSystem("CSVSystem") val delimiter = "||" val csvStream = FileIO.fromPath(Paths.get("path/to/csv")) .via(Framing.delimiter(ByteString(delimiter), maximumFrameLength = 4096, allowTruncation = true)) .map(_.utf8String.split(delimiter))

    This code uses Akka Stream library to read lines from a CSV file, split them using the double pipe (||) delimiter.

  10. Scala: Use Double Pipe as Delimiter in CSV with ScalaCSV

    Description: This query investigates using a double pipe (||) as a delimiter in CSV files while reading them with ScalaCSV library in Scala.

    import kantan.csv._ import kantan.csv.ops._ import java.nio.file.Paths val delimiter = "||" val settings = ReadSettings(delimiter.charAt(0)) val csv = ReadResult[List[String]](Paths.get("path/to/csv")).using(settings)

    This code uses ScalaCSV library to read a CSV file with a double pipe (||) as the delimiter.

More Tags

filesystemwatcher jsf public-key textureview kingfisher sasl mpmusicplayercontroller rust psycopg2 contain

More Programming Questions

More Housing Building Calculators

More Genetics Calculators

More Physical chemistry Calculators

More Geometry Calculators