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From tomwh...@apache.org
Subject svn commit: r812479 - in /hadoop/common/trunk: CHANGES.txt src/java/org/apache/hadoop/fs/s3native/NativeS3FileSystem.java src/test/core/org/apache/hadoop/fs/s3native/NativeS3FileSystemContractBaseTest.java
Date Tue, 08 Sep 2009 12:18:06 GMT
Author: tomwhite
Date: Tue Sep  8 12:18:06 2009
New Revision: 812479

URL: http://svn.apache.org/viewvc?rev=812479&view=rev
Log:
HADOOP-6009. S3N listStatus incorrectly returns null instead of empty array when called on
empty root. Contributed by Ian Nowland.

Modified:
    hadoop/common/trunk/CHANGES.txt
    hadoop/common/trunk/src/java/org/apache/hadoop/fs/s3native/NativeS3FileSystem.java
    hadoop/common/trunk/src/test/core/org/apache/hadoop/fs/s3native/NativeS3FileSystemContractBaseTest.java

Modified: hadoop/common/trunk/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/CHANGES.txt?rev=812479&r1=812478&r2=812479&view=diff
==============================================================================
--- hadoop/common/trunk/CHANGES.txt (original)
+++ hadoop/common/trunk/CHANGES.txt Tue Sep  8 12:18:06 2009
@@ -987,6 +987,9 @@
     HADOOP-6243. Fix a NullPointerException in processing deprecated keys.
     (Sreekanth Ramakrishnan via yhemanth)
 
+    HADOOP-6009. S3N listStatus incorrectly returns null instead of empty
+    array when called on empty root. (Ian Nowland via tomwhite)
+
 Release 0.20.1 - Unreleased
 
   INCOMPATIBLE CHANGES

Modified: hadoop/common/trunk/src/java/org/apache/hadoop/fs/s3native/NativeS3FileSystem.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/src/java/org/apache/hadoop/fs/s3native/NativeS3FileSystem.java?rev=812479&r1=812478&r2=812479&view=diff
==============================================================================
--- hadoop/common/trunk/src/java/org/apache/hadoop/fs/s3native/NativeS3FileSystem.java (original)
+++ hadoop/common/trunk/src/java/org/apache/hadoop/fs/s3native/NativeS3FileSystem.java Tue
Sep  8 12:18:06 2009
@@ -455,6 +455,7 @@
     } while (priorLastKey != null);
     
     if (status.isEmpty() &&
+        key.length() > 0 &&
         store.retrieveMetadata(key + FOLDER_SUFFIX) == null) {
       throw new FileNotFoundException("File " + f + " does not exist.");
     }

Modified: hadoop/common/trunk/src/test/core/org/apache/hadoop/fs/s3native/NativeS3FileSystemContractBaseTest.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/src/test/core/org/apache/hadoop/fs/s3native/NativeS3FileSystemContractBaseTest.java?rev=812479&r1=812478&r2=812479&view=diff
==============================================================================
--- hadoop/common/trunk/src/test/core/org/apache/hadoop/fs/s3native/NativeS3FileSystemContractBaseTest.java
(original)
+++ hadoop/common/trunk/src/test/core/org/apache/hadoop/fs/s3native/NativeS3FileSystemContractBaseTest.java
Tue Sep  8 12:18:06 2009
@@ -48,10 +48,13 @@
   }
   
   public void testListStatusForRoot() throws Exception {
+    FileStatus[] paths = fs.listStatus(path("/"));
+    assertEquals(0, paths.length);
+    
     Path testDir = path("/test");
     assertTrue(fs.mkdirs(testDir));
     
-    FileStatus[] paths = fs.listStatus(path("/"));
+    paths = fs.listStatus(path("/"));
     assertEquals(1, paths.length);
     assertEquals(path("/test"), paths[0].getPath());
   }



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