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Different ways to get file from resource
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| // 1 | |
| Source.fromResource("/public.pem").getLines() | |
| // 2 | |
| getClass.getResourceAsStream("/public.pem") match { | |
| case null => throw new FileNotFoundException("/public.pem") | |
| case stream => Source.fromInputStream(stream).getLines().mkString | |
| } | |
| // 3 | |
| Try(scala.io.Source.fromURL(getClass.getResource("/public.pem"))) | |
| .recover{case _ => throw new FileNotFoundException("/public.pem")} | |
| .get | |
| // 4 | |
| Try(scala.io.Source.fromURL(getClass.getResource("/public.pem"))) | |
| .getOrElse(throw new FileNotFoundException("/public.pem")) |
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| /** | |
| * image in /var/www/scala/nagual/it-nagual/src/test/resources/logo.png | |
| * test in /var/www/scala/nagual/it-nagual/src/test/scala/ru/dgis/myteam/nagual/MyTest.scala | |
| * image will appear in /var/www/scala/nagual/it-nagual/target/scala-2.12/test-classes/logo.png | |
| * test will appear in /var/www/scala/nagual/it-nagual/target/scala-2.12/test-classes/ru/dgis/myteam/nagual/MyTest.class | |
| */ | |
| package ru.dgis.myteam.nagual | |
| import java.io.{File, FileInputStream} | |
| import java.net.URL | |
| import java.nio.file.{Files, Paths} | |
| import org.apache.commons.compress.utils.IOUtils | |
| import org.scalatest.{FeatureSpec, Matchers} | |
| class MyTest extends FeatureSpec with Matchers { | |
| feature("Working with images") { | |
| scenario("First test") { | |
| val name = "/logo.png" | |
| // val name = "/tost.txt" | |
| val fl = new File(name) | |
| println(fl.getPath) // /logo.png | |
| println(fl.exists()) // false | |
| println(getClass) // class ru.dgis.myteam.nagual.MyTest | |
| val fl2: URL = getClass.getResource(name) | |
| println(fl2) // file:/var/www/scala/nagual/it-nagual/target/scala-2.12/test-classes/logo.png | |
| println(fl2.getFile) // /var/www/scala/nagual/it-nagual/target/scala-2.12/test-classes/logo.png | |
| println(fl2.getPath) // /var/www/scala/nagual/it-nagual/target/scala-2.12/test-classes/logo.png | |
| println(new File(fl2.getFile)) // /var/www/scala/nagual/it-nagual/target/scala-2.12/test-classes/logo.png | |
| println(new File(fl2.getFile).getName) // logo.png | |
| println(new File(fl2.getFile).exists()) // true | |
| val bytes: Array[Byte] = IOUtils.toByteArray(new FileInputStream(fl2.getFile)) | |
| println(bytes) // [B@6dbb137d | |
| val bytes2: Array[Byte] = Files.readAllBytes(Paths.get(fl2.getPath)) | |
| println(bytes2) // [B@3c9d0b9d | |
| println(bytes.map(_.toChar).mkString) | |
| // ﾉPNG | |
| // | |
| // IHDR  | |
| // ... | |
| println(bytes2.map(_.toChar).mkString) | |
| // ﾉPNG | |
| // | |
| // IHDR  | |
| // ... | |
| "1" shouldBe "1" | |
| } | |
| } | |
| } |
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