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HADOOP-14957. ReconfigurationTaskStatus is exposing guava Optional in its public api. Contributed by Haibo Chen, Xiao Chen.

This commit is contained in:
Xiao Chen 2017-10-25 14:10:33 -07:00
parent 075dd45a24
commit f66ad1fab9
6 changed files with 10 additions and 11 deletions
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4
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/ReconfigurableBase.java
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@ -19,7 +19,6 @@
package org.apache.hadoop.conf;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.collect.Maps;
import org.apache.hadoop.util.Time;
@ -31,6 +30,7 @@ import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.Optional;
/**
* Utility base class for implementing the Reconfigurable interface.
@ -148,7 +148,7 @@ public abstract class ReconfigurableBase
} catch (ReconfigurationException e) {
errorMessage = e.getCause().getMessage();
}
results.put(change, Optional.fromNullable(errorMessage));
results.put(change, Optional.ofNullable(errorMessage));
}
synchronized (parent.reconfigLock) {

6
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/ReconfigurationTaskStatus.java
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@ -18,15 +18,15 @@
package org.apache.hadoop.conf;
import com.google.common.base.Optional;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.ReconfigurationUtil.PropertyChange;
import java.util.Map;
import java.util.Optional;
@InterfaceAudience.Public
@InterfaceStability.Stable
@InterfaceAudience.LimitedPrivate({"HDFS", "Management Tools"})
@InterfaceStability.Unstable
public class ReconfigurationTaskStatus {
long startTime;
long endTime;

2
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestReconfiguration.java
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@ -18,7 +18,6 @@
package org.apache.hadoop.conf;
import com.google.common.base.Optional;
import com.google.common.base.Supplier;
import com.google.common.collect.Lists;
import org.apache.hadoop.test.GenericTestUtils;
@ -44,6 +43,7 @@ import java.util.Collection;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeoutException;

4
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/ReconfigurationProtocolUtils.java
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@ -19,13 +19,13 @@
package org.apache.hadoop.hdfs.protocolPB;
import java.util.Map;
import java.util.Optional;
import org.apache.hadoop.conf.ReconfigurationTaskStatus;
import org.apache.hadoop.conf.ReconfigurationUtil.PropertyChange;
import org.apache.hadoop.hdfs.protocol.proto.ReconfigurationProtocolProtos.GetReconfigurationStatusConfigChangeProto;
import org.apache.hadoop.hdfs.protocol.proto.ReconfigurationProtocolProtos.GetReconfigurationStatusResponseProto;
import com.google.common.base.Optional;
import com.google.common.collect.Maps;
/**
@ -56,7 +56,7 @@ public final class ReconfigurationProtocolUtils {
if (change.hasErrorMessage()) {
errorMessage = change.getErrorMessage();
}
statusMap.put(pc, Optional.fromNullable(errorMessage));
statusMap.put(pc, Optional.ofNullable(errorMessage));
}
}
return new ReconfigurationTaskStatus(startTime, endTime, statusMap);

3
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/ReconfigurationProtocolServerSideUtils.java
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@ -19,6 +19,7 @@ package org.apache.hadoop.hdfs.protocolPB;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import org.apache.hadoop.conf.ReconfigurationTaskStatus;
import org.apache.hadoop.conf.ReconfigurationUtil.PropertyChange;
@ -26,8 +27,6 @@ import org.apache.hadoop.hdfs.protocol.proto.ReconfigurationProtocolProtos.GetRe
import org.apache.hadoop.hdfs.protocol.proto.ReconfigurationProtocolProtos.GetReconfigurationStatusResponseProto;
import org.apache.hadoop.hdfs.protocol.proto.ReconfigurationProtocolProtos.ListReconfigurablePropertiesResponseProto;
import com.google.common.base.Optional;
/**
* This is a server side utility class that handles
* common logic to to parameter reconfiguration.

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSAdmin.java
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@ -33,11 +33,11 @@ import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.TreeSet;
import java.util.concurrent.TimeUnit;
import com.google.common.base.Joiner;
import com.google.common.base.Optional;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;