HADOOP-16582. LocalFileSystem's mkdirs() does not work as expected under viewfs. Contributed by Kihwal Lee

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FilterFileSystem.java

@@ -334,6 +334,10 @@ public class FilterFileSystem extends FileSystem {
     return fs.mkdirs(f, permission);
   }
 
+  @Override
+  public boolean mkdirs(Path f) throws IOException {
+    return fs.mkdirs(f);
+  }
 
   /**
    * The src file is on the local disk.  Add it to FS at

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ChRootedFileSystem.java

@@ -279,6 +279,11 @@ class ChRootedFileSystem extends FilterFileSystem {
     return super.mkdirs(fullPath(f), permission);
   }
 
+  @Override
+  public boolean mkdirs(final Path f) throws IOException {
+    return super.mkdirs(fullPath(f));
+  }
+
   @Override
   public FSDataInputStream open(final Path f, final int bufferSize) 
     throws IOException {

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFileSystem.java

@@ -549,12 +549,19 @@ public class ViewFileSystem extends FileSystem {
         suffix.length() == 0 ? f : new Path(res.resolvedPath, suffix));
   }
 
+  @Override
+  public boolean mkdirs(Path dir) throws IOException {
+    InodeTree.ResolveResult<FileSystem> res =
+        fsState.resolve(getUriPath(dir), false);
+    return res.targetFileSystem.mkdirs(res.remainingPath);
+  }
+
   @Override
   public boolean mkdirs(final Path dir, final FsPermission permission)
       throws IOException {
     InodeTree.ResolveResult<FileSystem> res = 
-      fsState.resolve(getUriPath(dir), false);
+        fsState.resolve(getUriPath(dir), false);
-   return  res.targetFileSystem.mkdirs(res.remainingPath, permission);
+    return res.targetFileSystem.mkdirs(res.remainingPath, permission);
   }
 
   @Override
@@ -1171,6 +1178,12 @@ public class ViewFileSystem extends FileSystem {
       throw readOnlyMountTable("mkdirs",  dir);
     }
 
+    @Override
+    public boolean mkdirs(Path dir)
+        throws AccessControlException, FileAlreadyExistsException {
+      return mkdirs(dir, null);
+    }
+
     @Override
     public FSDataInputStream open(Path f, int bufferSize)
         throws AccessControlException, FileNotFoundException, IOException {

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

@@ -77,7 +77,6 @@ public class TestFilterFileSystem {
         boolean overwrite, int bufferSize, short replication, long blockSize,
         Progressable progress) throws IOException;
 
-    public boolean mkdirs(Path f);
     public FSDataInputStream open(Path f);
     public FSDataInputStream open(PathHandle f);
     public FSDataOutputStream create(Path f);