Apache/hbase
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

HBASE-22044 Restore compat for ByteBufferUtils. Also deprecated because it will be IA.Private in HBase 3.0

Browse Source 
(cherry picked from commit f13a897bf7484f0bc512048e7a16f0d8f04cc238)

Signed-off-by: Andrew Purtell <apurtell@apache.org>
This commit is contained in:
Sean Busbey 2019-03-12 23:26:30 -05:00
parent 25defc9293
commit 8cab60cd2b
1 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
hbase-common/src/main/java/org/apache/hadoop/hbase/util/ByteBufferUtils.java
View File

@ -36,8 +36,10 @@ import sun.nio.ch.DirectBuffer;
/** /**
* Utility functions for working with byte buffers, such as reading/writing * Utility functions for working with byte buffers, such as reading/writing
* variable-length long numbers. * variable-length long numbers.
* @deprecated This class will become IA.Private in HBase 3.0. Downstream folks should avoid using it.
*/ */
@SuppressWarnings("restriction") @SuppressWarnings("restriction")
@Deprecated
@InterfaceAudience.Public @InterfaceAudience.Public
@InterfaceStability.Evolving @InterfaceStability.Evolving
public final class ByteBufferUtils { public final class ByteBufferUtils {
@ -650,6 +652,28 @@ public final class ByteBufferUtils {
} }
} }
/**
* Find length of common prefix of two parts in the buffer
* @param buffer Where parts are located.
* @param offsetLeft Offset of the first part.
* @param offsetRight Offset of the second part.
* @param limit Maximal length of common prefix.
* @return Length of prefix.
*/
public static int findCommonPrefix(ByteBuffer buffer, int offsetLeft,
int offsetRight, int limit) {
int prefix = 0;
for (; prefix < limit; ++prefix) {
if (buffer.get(offsetLeft + prefix) != buffer.get(offsetRight + prefix)) {
break;
}
}
return prefix;
}
/** /**
* Find length of common prefix in two arrays. * Find length of common prefix in two arrays.
* @param left Array to be compared. * @param left Array to be compared.