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HADOOP-10228. FsPermission#fromShort() should cache FsAction.values(). Contributed by Haohui Mai. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558139 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Chris Nauroth 2014-01-14 18:20:18 +00:00
parent e210519d32
commit 782a223add
2 changed files with 6 additions and 2 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -430,6 +430,9 @@ Release 2.4.0 - UNRELEASED
HADOOP-10173. Remove UGI from DIGEST-MD5 SASL server creation (daryn via
kihwal)
HADOOP-10228. FsPermission#fromShort() should cache FsAction.values().
(Haohui Mai via cnauroth)
BUG FIXES
HADOOP-9964. Fix deadlocks in TestHttpServer by synchronize

5
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/FsPermission.java
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@ -120,8 +120,7 @@ public class FsPermission implements Writable {
}
public void fromShort(short n) {
FsAction[] v = FsAction.values();
FsAction[] v = FSACTION_VALUES;
set(v[(n >>> 6) & 7], v[(n >>> 3) & 7], v[n & 7], (((n >>> 9) & 1) == 1) );
}
@ -210,6 +209,8 @@ public class FsPermission implements Writable {
public static final int DEFAULT_UMASK =
CommonConfigurationKeys.FS_PERMISSIONS_UMASK_DEFAULT;
private static final FsAction[] FSACTION_VALUES = FsAction.values();
/**
* Get the user file creation mask (umask)
*