[SPARK-14914] Normalize Paths/URIs for windows.

core/src/main/scala/org/apache/spark/SparkContext.scala

@@ -1313,11 +1313,8 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli
    * supported for Hadoop-supported filesystems.
    */
   def addFile(path: String, recursive: Boolean): Unit = {
-    val uri = new URI(path)
-    val schemeCorrectedPath = uri.getScheme match {
-      case null | "local" => new File(path).getCanonicalFile.toURI.toString
-      case _ => path
-    }
+    val uri = Utils.resolveURI(path)
+    val schemeCorrectedPath = uri.toString
 
     val hadoopPath = new Path(schemeCorrectedPath)
     val scheme = new URI(schemeCorrectedPath).getScheme
@@ -1346,8 +1343,8 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli
     addedFiles(key) = timestamp
 
     // Fetch the file locally in case a job is executed using DAGScheduler.runLocally().
-    Utils.fetchFile(path, new File(SparkFiles.getRootDirectory()), conf, env.securityManager,
-      hadoopConfiguration, timestamp, useCache = false)
+    Utils.fetchFile(schemeCorrectedPath, new File(SparkFiles.getRootDirectory()), conf,
+      env.securityManager, hadoopConfiguration, timestamp, useCache = false)
 
     logInfo("Added file " + path + " at " + key + " with timestamp " + addedFiles(key))
     postEnvironmentUpdate()

core/src/main/scala/org/apache/spark/TestUtils.scala

@@ -92,7 +92,8 @@ private[spark] object TestUtils {
     val jarStream = new JarOutputStream(jarFileStream, new java.util.jar.Manifest())
 
     for (file <- files) {
-      val jarEntry = new JarEntry(Paths.get(directoryPrefix.getOrElse(""), file.getName).toString)
+      val jarEntry = new JarEntry(
+        Paths.get(directoryPrefix.getOrElse(""), file.getName).toString.replace("\\", "/"))
       jarStream.putNextEntry(jarEntry)
 
       val in = new FileInputStream(file)

core/src/main/scala/org/apache/spark/deploy/RPackageUtils.scala

@@ -232,7 +232,8 @@ private[deploy] object RPackageUtils extends Logging {
     try {
       filesToBundle.foreach { file =>
         // get the relative paths for proper naming in the zip file
-        val relPath = file.getAbsolutePath.replaceFirst(dir.getAbsolutePath, "")
+        val relPath = Utils.normalizePath(file.getAbsolutePath)
+          .replaceFirst(Utils.normalizePath(dir.getAbsolutePath), "")
         val fis = new FileInputStream(file)
         val zipEntry = new ZipEntry(relPath)
         zipOutputStream.putNextEntry(zipEntry)

core/src/main/scala/org/apache/spark/util/Utils.scala

@@ -1824,6 +1824,24 @@ private[spark] object Utils extends Logging {
     }
   }
 
+   /**
+    * Normalize the local path for windows. If the path is absolute (starts with drive label)
+    * it will append a leading slash. The back slashes will be replaced with slash
+    * @param path the path to be normalized
+    * @return the normalized path
+    */
+  def normalizePath(path: String): String = {
+    if (isWindows) {
+      if (path.matches("""^[A-Za-z]:[/\\].*$""")) {
+        "/" + path.replace("\\", "/")
+      } else {
+        path.replace("\\", "/")
+      }
+    } else {
+      path
+    }
+  }
+
   /**
    * Return a well-formed URI for the file described by a user input string.
    *
@@ -1832,7 +1850,15 @@ private[spark] object Utils extends Logging {
    */
   def resolveURI(path: String): URI = {
     try {
-      val uri = new URI(path)
+      // append slash if the path starts with drive label on windows
+      val escapedPath =
+        if (Utils.isWindows && path.matches("""^[A-Za-z]:[/\\].*$""")) {
+          "/" + path // windows path like D:/ will be recognize as schema D
+        } else {
+          path
+        }
+
+      val uri = new URI(escapedPath)
       if (uri.getScheme() != null) {
         return uri
       }

core/src/test/java/org/apache/spark/JavaAPISuite.java

@@ -71,6 +71,7 @@
 import org.apache.spark.serializer.KryoSerializer;
 import org.apache.spark.storage.StorageLevel;
 import org.apache.spark.util.StatCounter;
+import org.apache.spark.util.Utils;
 
 // The test suite itself is Serializable so that anonymous Function implementations can be
 // serialized, as an alternative to converting these anonymous classes to static inner classes;
@@ -1071,7 +1072,7 @@ public void wholeTextFiles() throws Exception {
     byte[] content1 = "spark is easy to use.\n".getBytes(StandardCharsets.UTF_8);
     byte[] content2 = "spark is also easy to use.\n".getBytes(StandardCharsets.UTF_8);
 
-    String tempDirName = tempDir.getAbsolutePath();
+    String tempDirName = Utils.normalizePath(tempDir.getAbsolutePath());
     Files.write(content1, new File(tempDirName + "/part-00000"));
     Files.write(content2, new File(tempDirName + "/part-00001"));
 

core/src/test/scala/org/apache/spark/FileSuite.scala

@@ -232,7 +232,7 @@ class FileSuite extends SparkFunSuite with LocalSparkContext {
   test("binary file input as byte array") {
     sc = new SparkContext("local", "test")
     val outFile = new File(tempDir, "record-bytestream-00000.bin")
-    val outFileName = outFile.getAbsolutePath()
+    val outFileName = Utils.normalizePath(outFile.getAbsolutePath())
 
     // create file
     val testOutput = Array[Byte](1, 2, 3, 4, 5, 6)
@@ -516,7 +516,7 @@ class FileSuite extends SparkFunSuite with LocalSparkContext {
 
   test("Get input files via old Hadoop API") {
     sc = new SparkContext("local", "test")
-    val outDir = new File(tempDir, "output").getAbsolutePath
+    val outDir = Utils.normalizePath(new File(tempDir, "output").getAbsolutePath)
     sc.makeRDD(1 to 4, 2).saveAsTextFile(outDir)
 
     val inputPaths =
@@ -530,7 +530,7 @@ class FileSuite extends SparkFunSuite with LocalSparkContext {
 
   test("Get input files via new Hadoop API") {
     sc = new SparkContext("local", "test")
-    val outDir = new File(tempDir, "output").getAbsolutePath
+    val outDir = Utils.normalizePath(new File(tempDir, "output").getAbsolutePath)
     sc.makeRDD(1 to 4, 2).saveAsTextFile(outDir)
 
     val inputPaths =

core/src/test/scala/org/apache/spark/deploy/IvyTestUtils.scala

@@ -142,7 +142,7 @@ private[deploy] object IvyTestUtils {
         |}
       """.stripMargin
     val sourceFile =
-      new JavaSourceFromString(new File(dir, className).getAbsolutePath, contents)
+      new JavaSourceFromString(new File(dir, className).toURI.toString, contents)
     createCompiledClass(className, dir, sourceFile, Seq.empty)
   }
 

core/src/test/scala/org/apache/spark/metrics/InputOutputMetricsSuite.scala

@@ -61,7 +61,7 @@ class InputOutputMetricsSuite extends SparkFunSuite with SharedSparkContext
     pw.close()
 
     // Path to tmpFile
-    tmpFilePath = "file://" + tmpFile.getAbsolutePath
+    tmpFilePath = Utils.resolveURI(tmpFile.getAbsolutePath).toString
   }
 
   after {
@@ -181,7 +181,7 @@ class InputOutputMetricsSuite extends SparkFunSuite with SharedSparkContext
     sc.textFile(tmpFilePath, 4)
       .map(key => (key, 1))
       .reduceByKey(_ + _)
-      .saveAsTextFile("file://" + tmpFile.getAbsolutePath)
+      .saveAsTextFile(Utils.resolveURI(tmpFile.getAbsolutePath).toString)
 
     sc.listenerBus.waitUntilEmpty(500)
     assert(inputRead == numRecords)
@@ -197,7 +197,7 @@ class InputOutputMetricsSuite extends SparkFunSuite with SharedSparkContext
     val numPartitions = 2
     val cartVector = 0 to 9
     val cartFile = new File(tmpDir, getClass.getSimpleName + "_cart.txt")
-    val cartFilePath = "file://" + cartFile.getAbsolutePath
+    val cartFilePath = Utils.resolveURI(cartFile.getAbsolutePath).toString
 
     // write files to disk so we can read them later.
     sc.parallelize(cartVector).saveAsTextFile(cartFilePath)
@@ -265,7 +265,7 @@ class InputOutputMetricsSuite extends SparkFunSuite with SharedSparkContext
     // Only supported on newer Hadoop
     if (SparkHadoopUtil.get.getFSBytesWrittenOnThreadCallback().isDefined) {
       val file = new File(tmpDir, getClass.getSimpleName)
-      val filePath = "file://" + file.getAbsolutePath
+      val filePath = Utils.resolveURI(file.getAbsolutePath).toString
 
       val records = runAndReturnRecordsWritten {
         sc.parallelize(1 to numRecords).saveAsTextFile(filePath)
@@ -278,7 +278,7 @@ class InputOutputMetricsSuite extends SparkFunSuite with SharedSparkContext
     // Only supported on newer Hadoop
     if (SparkHadoopUtil.get.getFSBytesWrittenOnThreadCallback().isDefined) {
       val file = new File(tmpDir, getClass.getSimpleName)
-      val filePath = "file://" + file.getAbsolutePath
+      val filePath = Utils.resolveURI(file.getAbsolutePath).toString
 
       val records = runAndReturnRecordsWritten {
         sc.parallelize(1 to numRecords).map(key => (key.toString, key.toString))

core/src/test/scala/org/apache/spark/scheduler/EventLoggingListenerSuite.scala

@@ -107,20 +107,38 @@ class EventLoggingListenerSuite extends SparkFunSuite with LocalSparkContext wit
   }
 
   test("Event log name") {
-    // without compression
-    assert(s"file:/base-dir/app1" === EventLoggingListener.getLogPath(
-      Utils.resolveURI("/base-dir"), "app1", None))
-    // with compression
-    assert(s"file:/base-dir/app1.lzf" ===
-      EventLoggingListener.getLogPath(Utils.resolveURI("/base-dir"), "app1", None, Some("lzf")))
-    // illegal characters in app ID
-    assert(s"file:/base-dir/a-fine-mind_dollar_bills__1" ===
-      EventLoggingListener.getLogPath(Utils.resolveURI("/base-dir"),
-        "a fine:mind$dollar{bills}.1", None))
-    // illegal characters in app ID with compression
-    assert(s"file:/base-dir/a-fine-mind_dollar_bills__1.lz4" ===
-      EventLoggingListener.getLogPath(Utils.resolveURI("/base-dir"),
-        "a fine:mind$dollar{bills}.1", None, Some("lz4")))
+    if (!Utils.isWindows) {
+      // without compression
+      assert(s"file:/base-dir/app1" === EventLoggingListener.getLogPath(
+        Utils.resolveURI("/base-dir"), "app1", None))
+      // with compression
+      assert(s"file:/base-dir/app1.lzf" ===
+        EventLoggingListener.getLogPath(Utils.resolveURI("/base-dir"), "app1", None, Some("lzf")))
+      // illegal characters in app ID
+      assert(s"file:/base-dir/a-fine-mind_dollar_bills__1" ===
+        EventLoggingListener.getLogPath(Utils.resolveURI("/base-dir"),
+          "a fine:mind$dollar{bills}.1", None))
+      // illegal characters in app ID with compression
+      assert(s"file:/base-dir/a-fine-mind_dollar_bills__1.lz4" ===
+        EventLoggingListener.getLogPath(Utils.resolveURI("/base-dir"),
+          "a fine:mind$dollar{bills}.1", None, Some("lz4")))
+    } else {
+      // windows needs drive label
+      // without compression
+      assert(s"file:/D:/base-dir/app1" === EventLoggingListener.getLogPath(
+        Utils.resolveURI("D:/base-dir"), "app1", None))
+      // with compression
+      assert(s"file:/D:/base-dir/app1.lzf" ===
+        EventLoggingListener.getLogPath(Utils.resolveURI("D:/base-dir"), "app1", None, Some("lzf")))
+      // illegal characters in app ID
+      assert(s"file:/D:/base-dir/a-fine-mind_dollar_bills__1" ===
+        EventLoggingListener.getLogPath(Utils.resolveURI("D:/base-dir"),
+          "a fine:mind$dollar{bills}.1", None))
+      // illegal characters in app ID with compression
+      assert(s"file:/D:/base-dir/a-fine-mind_dollar_bills__1.lz4" ===
+        EventLoggingListener.getLogPath(Utils.resolveURI("D:/base-dir"),
+          "a fine:mind$dollar{bills}.1", None, Some("lz4")))
+    }
   }
 
   /* ----------------- *

core/src/test/scala/org/apache/spark/scheduler/TaskResultGetterSuite.scala

@@ -171,7 +171,8 @@ class TaskResultGetterSuite extends SparkFunSuite with BeforeAndAfter with Local
     val tempDir = Utils.createTempDir()
     val srcDir = new File(tempDir, "repro/")
     srcDir.mkdirs()
-    val excSource = new JavaSourceFromString(new File(srcDir, "MyException").getAbsolutePath,
+    val excSource = new JavaSourceFromString(Utils.resolveURI(
+      new File(srcDir, "MyException").getAbsolutePath).toString,
       """package repro;
         |
         |public class MyException extends Exception {

core/src/test/scala/org/apache/spark/scheduler/cluster/mesos/MesosSchedulerBackendSuite.scala

@@ -17,6 +17,7 @@
 
 package org.apache.spark.scheduler.cluster.mesos
 
+import java.io.File
 import java.nio.ByteBuffer
 import java.util.Arrays
 import java.util.Collection
@@ -36,9 +37,9 @@ import org.scalatest.mock.MockitoSugar
 
 import org.apache.spark.{LocalSparkContext, SparkConf, SparkContext, SparkFunSuite}
 import org.apache.spark.executor.MesosExecutorBackend
-import org.apache.spark.scheduler.{LiveListenerBus, SparkListenerExecutorAdded,
-  TaskDescription, TaskSchedulerImpl, WorkerOffer}
+import org.apache.spark.scheduler.{LiveListenerBus, SparkListenerExecutorAdded, TaskDescription, TaskSchedulerImpl, WorkerOffer}
 import org.apache.spark.scheduler.cluster.ExecutorInfo
+import org.apache.spark.util.Utils
 
 class MesosSchedulerBackendSuite extends SparkFunSuite with LocalSparkContext with MockitoSugar {
 
@@ -111,7 +112,8 @@ class MesosSchedulerBackendSuite extends SparkFunSuite with LocalSparkContext wi
 
   test("check spark-class location correctly") {
     val conf = new SparkConf
-    conf.set("spark.mesos.executor.home", "/mesos-home")
+    conf.set("spark.mesos.executor.home",
+      if (Utils.isWindows) "D:\\mesos-home" else "/mesos-home")
 
     val listenerBus = mock[LiveListenerBus]
     listenerBus.post(
@@ -134,9 +136,15 @@ class MesosSchedulerBackendSuite extends SparkFunSuite with LocalSparkContext wi
       mesosSchedulerBackend.createResource("mem", 1024))
     // uri is null.
     val (executorInfo, _) = mesosSchedulerBackend.createExecutorInfo(resources, "test-id")
+    val expectedSparkClass =
+      if (Utils.isWindows) {
+        "D:\\mesos-home\\bin\\spark-class"
+      } else {
+        "/mesos-home/bin/spark-class"
+      }
     assert(executorInfo.getCommand.getValue ===
-      s" /mesos-home/bin/spark-class ${classOf[MesosExecutorBackend].getName}")
-
+      " " + new File(s"$expectedSparkClass ${classOf[MesosExecutorBackend].getName}")
+      .getAbsolutePath)
     // uri exists.
     conf.set("spark.executor.uri", "hdfs:///test-app-1.0.0.tgz")
     val (executorInfo1, _) = mesosSchedulerBackend.createExecutorInfo(resources, "test-id")

core/src/test/scala/org/apache/spark/util/UtilsSuite.scala

@@ -416,8 +416,9 @@ class UtilsSuite extends SparkFunSuite with ResetSystemProperties with Logging {
     assertResolves("hdfs:/jar1,file:/jar2,jar3,jar4#jar5,path to/jar6",
       s"hdfs:/jar1,file:/jar2,file:$cwd/jar3,file:$cwd/jar4#jar5,file:$cwd/path%20to/jar6")
     if (Utils.isWindows) {
+      // It seems "#" is not valid for a local file path, and it will be escaped by the File.toURI
       assertResolves("""hdfs:/jar1,file:/jar2,jar3,C:\pi.py#py.pi,C:\path to\jar4""",
-        s"hdfs:/jar1,file:/jar2,file:$cwd/jar3,file:/C:/pi.py#py.pi,file:/C:/path%20to/jar4")
+        s"hdfs:/jar1,file:/jar2,file:$cwd/jar3,file:/C:/pi.py%23py.pi,file:/C:/path%20to/jar4")
     }
   }
 

sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala

@@ -598,7 +598,7 @@ class ColumnExpressionSuite extends QueryTest with SharedSQLContext {
       data.write.parquet(dir.getCanonicalPath)
       val answer = sqlContext.read.parquet(dir.getCanonicalPath).select(input_file_name())
         .head.getString(0)
-      assert(answer.contains(dir.getCanonicalPath))
+      assert(answer.contains(dir.getCanonicalPath.replace("\\", "/")))
 
       checkAnswer(data.select(input_file_name()).limit(1), Row(""))
     }

sql/core/src/test/scala/org/apache/spark/sql/UDFSuite.scala

@@ -64,7 +64,7 @@ class UDFSuite extends QueryTest with SharedSQLContext {
       data.write.parquet(dir.getCanonicalPath)
       sqlContext.read.parquet(dir.getCanonicalPath).registerTempTable("test_table")
       val answer = sql("select input_file_name() from test_table").head().getString(0)
-      assert(answer.contains(dir.getCanonicalPath))
+      assert(answer.contains(dir.getCanonicalPath.replace("\\", "/")))
       assert(sql("select input_file_name() from test_table").distinct().collect().length >= 2)
       sqlContext.dropTempTable("test_table")
     }

streaming/src/test/scala/org/apache/spark/streaming/CheckpointSuite.scala

@@ -627,7 +627,9 @@ class CheckpointSuite extends TestSuiteBase with DStreamCheckpointTester
         ssc.graph.getInputStreams().head.asInstanceOf[FileInputDStream[_, _, _]]
       val filenames = fileInputDStream.batchTimeToSelectedFiles.synchronized
          { fileInputDStream.batchTimeToSelectedFiles.values.flatten }
-      filenames.map(_.split(File.separator).last.toInt).toSeq.sorted
+      // on both win and *nix, the separator will be normalized to slash (/)
+      // Using File.separator will cause problem on windows.
+      filenames.map(_.split("/").last.toInt).toSeq.sorted
     }
 
     try {