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owainlewis/Gzip.scala

Last active June 21, 2023 05:30
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  1. owainlewis revised this gist Mar 16, 2016. 2 changed files with 10 additions and 0 deletions.
    0 GZIP.scala → Gzip.scala
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    File renamed without changes.
    10 changes: 10 additions & 0 deletions GzipSpec.scala
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    Original file line number Diff line number Diff line change
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    class GzipSpec extends WordSpecLike with Matchers {

    "The GZIP object" should {

    "decompress a compressed string" in {
    val input = Gzip.compress("Hello World".getBytes("UTF-8"))
    Gzip.decompress(input) shouldBe Some("Hello World")
    }
    }
    }
  2. owainlewis created this gist Mar 16, 2016.
    23 changes: 23 additions & 0 deletions GZIP.scala
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    import java.io.{ByteArrayOutputStream, ByteArrayInputStream}
    import java.util.zip.{GZIPOutputStream, GZIPInputStream}

    import scala.util.Try

    object Gzip {

    def compress(input: Array[Byte]): Array[Byte] = {
    val bos = new ByteArrayOutputStream(input.length)
    val gzip = new GZIPOutputStream(bos)
    gzip.write(input)
    gzip.close()
    val compressed = bos.toByteArray
    bos.close()
    compressed
    }

    def decompress(compressed: Array[Byte]): Option[String] =
    Try {
    val inputStream = new GZIPInputStream(new ByteArrayInputStream(compressed))
    scala.io.Source.fromInputStream(inputStream).mkString
    }.toOption
    }