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HADOOP-10882. Move DirectBufferPool into common util. Contributed by Todd Lipcon. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1613006 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Todd Lipcon 2014-07-24 06:22:02 +00:00
parent 2050e0dad6
commit 2054453a39
6 changed files with 11 additions and 7 deletions
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2
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -455,6 +455,8 @@ Release 2.6.0 - UNRELEASED
HADOOP-10887. Add XAttrs to ViewFs and make XAttrs + ViewFileSystem
internal dir behavior consistent. (Stephen Chu via wang)
HADOOP-10882. Move DirectBufferPool into common util. (todd)
OPTIMIZATIONS
BUG FIXES

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/util/DirectBufferPool.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/DirectBufferPool.java
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@ -15,7 +15,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hdfs.util;
package org.apache.hadoop.util;
import java.lang.ref.WeakReference;
import java.nio.ByteBuffer;
@ -27,6 +27,7 @@ import java.util.concurrent.ConcurrentMap;
import org.apache.hadoop.classification.InterfaceAudience;
import com.google.common.annotations.VisibleForTesting;
import org.apache.hadoop.classification.InterfaceStability;
/**
* A simple class for pooling direct ByteBuffers. This is necessary
@ -40,7 +41,8 @@ import com.google.common.annotations.VisibleForTesting;
* allocated at the same size. There is no attempt to reuse larger
* buffers to satisfy smaller allocations.
*/
@InterfaceAudience.Private
@InterfaceAudience.LimitedPrivate({"HDFS", "MapReduce"})
@InterfaceStability.Evolving
public class DirectBufferPool {
// Essentially implement a multimap with weak values.

4
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestDirectBufferPool.java → hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestDirectBufferPool.java
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@ -15,7 +15,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hdfs.util;
package org.apache.hadoop.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
@ -29,7 +29,7 @@ import org.junit.Test;
import com.google.common.collect.Lists;
public class TestDirectBufferPool {
final DirectBufferPool pool = new DirectBufferPool();
final org.apache.hadoop.util.DirectBufferPool pool = new org.apache.hadoop.util.DirectBufferPool();
@Test
public void testBasics() {

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/BlockReaderLocal.java
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@ -31,7 +31,7 @@ import org.apache.hadoop.hdfs.server.datanode.BlockMetadataHeader;
import org.apache.hadoop.hdfs.server.datanode.CachingStrategy;
import org.apache.hadoop.hdfs.shortcircuit.ClientMmap;
import org.apache.hadoop.hdfs.shortcircuit.ShortCircuitReplica;
import org.apache.hadoop.hdfs.util.DirectBufferPool;
import org.apache.hadoop.util.DirectBufferPool;
import org.apache.hadoop.util.DataChecksum;
import com.google.common.annotations.VisibleForTesting;

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/BlockReaderLocalLegacy.java
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@ -40,7 +40,7 @@ import org.apache.hadoop.hdfs.protocol.ExtendedBlock;
import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;
import org.apache.hadoop.hdfs.server.datanode.BlockMetadataHeader;
import org.apache.hadoop.hdfs.shortcircuit.ClientMmap;
import org.apache.hadoop.hdfs.util.DirectBufferPool;
import org.apache.hadoop.util.DirectBufferPool;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.security.UserGroupInformation;

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/PacketReceiver.java
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@ -27,7 +27,7 @@ import java.nio.channels.ReadableByteChannel;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.hdfs.util.DirectBufferPool;
import org.apache.hadoop.util.DirectBufferPool;
import org.apache.hadoop.io.IOUtils;
import com.google.common.base.Preconditions;