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HADOOP-6246. Add backward compatibility support to use deprecated decimal umask from old configuration. Contributed by Jakob Homan. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@814080 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Suresh Srinivas 2009-09-11 23:28:08 +00:00
parent c9cc61e853
commit 3617ed0bad
3 changed files with 23 additions and 11 deletions
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3
CHANGES.txt
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@ -190,6 +190,9 @@ Trunk (unreleased changes)
HADOOP-4012. Provide splitting support for bzip2 compressed files. (Abdul
Qadeer via cdouglas)
HADOOP-6246. Add backward compatibility support to use deprecated decimal
umask from old configuration. (Jakob Homan via suresh)
IMPROVEMENTS
HADOOP-4565. Added CombineFileInputFormat to use data locality information

21
src/java/org/apache/hadoop/fs/permission/FsPermission.java
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@ -181,10 +181,14 @@ public class FsPermission implements Writable {
otheraction.and(umask.otheraction.not()));
}
/** umask property label */
/** umask property label Deprecated key may be removed in version .23 */
public static final String DEPRECATED_UMASK_LABEL = "dfs.umask";
public static final String UMASK_LABEL = "dfs.umaskmode";
public static final int DEFAULT_UMASK = 0022;
{ Configuration.addDeprecation(DEPRECATED_UMASK_LABEL,
new String [] {UMASK_LABEL}, DEPRECATED_UMASK_LABEL + " is deprecated, " +
"use " + UMASK_LABEL + " with octal or symbolic specifications.");
}
/** Get the user file creation mask (umask) */
public static FsPermission getUMask(Configuration conf) {
@ -195,16 +199,11 @@ public class FsPermission implements Writable {
if(conf != null) {
String confUmask = conf.get(UMASK_LABEL);
if(confUmask != null) { // UMASK_LABEL is set
umask = new UmaskParser(confUmask).getUMask();
} else { // check for deprecated key label
int oldStyleValue = conf.getInt(DEPRECATED_UMASK_LABEL, Integer.MIN_VALUE);
if(oldStyleValue != Integer.MIN_VALUE) { // Property was set with old key
LOG.warn(DEPRECATED_UMASK_LABEL + " configuration key is deprecated. " +
"Convert to " + UMASK_LABEL + ", using octal or symbolic umask " +
"specifications.");
umask = oldStyleValue;
}
}
if(conf.deprecatedKeyWasSet(DEPRECATED_UMASK_LABEL))
umask = Integer.parseInt(confUmask); // Evaluate as decimal value
else
umask = new UmaskParser(confUmask).getUMask();
}
}
return new FsPermission((short)umask);

10
src/test/core/org/apache/hadoop/fs/permission/TestFsPermission.java
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@ -161,4 +161,14 @@ public class TestFsPermission extends TestCase {
}
}
}
// Ensure that when the deprecated decimal umask key is used, it is correctly
// parsed as such and converted correctly to an FsPermission value
public void testDeprecatedUmask() {
Configuration conf = new Configuration();
conf.set(FsPermission.DEPRECATED_UMASK_LABEL, "302"); // 302 = 0456
FsPermission umask = FsPermission.getUMask(conf);
assertEquals(0456, umask.toShort());
}
}