svn merge -c 1166009 from trunk for HDFS-2284.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1189384 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/src/main/resources/core-default.xml

@@ -317,6 +317,11 @@
   <value>org.apache.hadoop.hdfs.HsftpFileSystem</value>
 </property>
 
+<property>
+  <name>fs.webhdfs.impl</name>
+  <value>org.apache.hadoop.hdfs.web.WebHdfsFileSystem</value>
+</property>
+
 <property>
   <name>fs.ftp.impl</name>
   <value>org.apache.hadoop.fs.ftp.FTPFileSystem</value>

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/FSMainOperationsBaseTest.java

@@ -32,6 +32,7 @@ import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
+import org.mortbay.log.Log;
 
 import static org.apache.hadoop.fs.FileSystemTestHelper.*;
 
@@ -62,8 +63,6 @@ public abstract class FSMainOperationsBaseTest  {
   private static String TEST_DIR_AXX = "test/hadoop/axx";
   private static int numBlocks = 2;
   
-  static  final String LOCAL_FS_ROOT_URI = "file:///tmp/test";
-  
   
   protected static FileSystem fSys;
   
@@ -83,7 +82,7 @@ public abstract class FSMainOperationsBaseTest  {
     }     
   };
   
-  private static byte[] data = getFileData(numBlocks,
+  protected static final byte[] data = getFileData(numBlocks,
       getDefaultBlockSize());
   
   @Before
@@ -183,7 +182,7 @@ public abstract class FSMainOperationsBaseTest  {
   
   @Test
   public void testWDAbsolute() throws IOException {
-    Path absoluteDir = new Path(LOCAL_FS_ROOT_URI + "/existingDir");
+    Path absoluteDir = new Path(fSys.getUri() + "/test/existingDir");
     fSys.mkdirs(absoluteDir);
     fSys.setWorkingDirectory(absoluteDir);
     Assert.assertEquals(absoluteDir, fSys.getWorkingDirectory());
@@ -646,7 +645,7 @@ public abstract class FSMainOperationsBaseTest  {
     writeReadAndDelete(getDefaultBlockSize() * 2);
   }
   
-  private void writeReadAndDelete(int len) throws IOException {
+  protected void writeReadAndDelete(int len) throws IOException {
     Path path = getTestRootPath(fSys, "test/hadoop/file");
     
     fSys.mkdirs(path.getParent());
@@ -768,6 +767,7 @@ public abstract class FSMainOperationsBaseTest  {
       rename(src, dst, false, false, false, Rename.NONE);
       Assert.fail("Should throw FileNotFoundException");
     } catch (IOException e) {
+      Log.info("XXX", e);
       Assert.assertTrue(unwrapException(e) instanceof FileNotFoundException);
     }
 

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/FileSystemContractBaseTest.java

@@ -45,7 +45,7 @@ import org.apache.hadoop.fs.Path;
 public abstract class FileSystemContractBaseTest extends TestCase {
   
   protected FileSystem fs;
-  private byte[] data = new byte[getBlockSize() * 2]; // two blocks of data
+  protected byte[] data = new byte[getBlockSize() * 2]; // two blocks of data
   {
     for (int i = 0; i < data.length; i++) {
       data[i] = (byte) (i % 10);
@@ -215,7 +215,7 @@ public abstract class FileSystemContractBaseTest extends TestCase {
     writeReadAndDelete(getBlockSize() * 2);
   }
   
-  private void writeReadAndDelete(int len) throws IOException {
+  protected void writeReadAndDelete(int len) throws IOException {
     Path path = path("/test/hadoop/file");
     
     fs.mkdirs(path.getParent());
@@ -256,7 +256,7 @@ public abstract class FileSystemContractBaseTest extends TestCase {
     assertEquals("Length", data.length, fs.getFileStatus(path).getLen());
     
     try {
-      fs.create(path, false);
+      fs.create(path, false).close();
       fail("Should throw IOException.");
     } catch (IOException e) {
       // Expected