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HADOOP-9154. SortedMapWritable#putAll() doesn't add key/value classes to the map. Contributed by Karthik Kambatla. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1446183 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas White 2013-02-14 14:07:33 +00:00
parent 4ad1279b2e
commit c01827aa48
4 changed files with 24 additions and 3 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -366,6 +366,9 @@ Release 2.0.4-beta - UNRELEASED
HADOOP-9297. remove old record IO generation and tests. (tucu)
HADOOP-9154. SortedMapWritable#putAll() doesn't add key/value classes to
the map. (Karthik Kambatla via tomwhite)
Release 2.0.3-alpha - 2013-02-06
INCOMPATIBLE CHANGES

8
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/AbstractMapWritable.java
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@ -29,6 +29,8 @@ import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configurable;
import org.apache.hadoop.conf.Configuration;
import com.google.common.annotations.VisibleForTesting;
/**
* Abstract base class for MapWritable and SortedMapWritable
*
@ -45,10 +47,12 @@ public abstract class AbstractMapWritable implements Writable, Configurable {
private AtomicReference<Configuration> conf;
/* Class to id mappings */
private Map<Class, Byte> classToIdMap = new ConcurrentHashMap<Class, Byte>();
@VisibleForTesting
Map<Class, Byte> classToIdMap = new ConcurrentHashMap<Class, Byte>();
/* Id to Class mappings */
private Map<Byte, Class> idToClassMap = new ConcurrentHashMap<Byte, Class>();
@VisibleForTesting
Map<Byte, Class> idToClassMap = new ConcurrentHashMap<Byte, Class>();
/* The number of new classes (those not established by the constructor) */
private volatile byte newClasses = 0;

2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/SortedMapWritable.java
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@ -141,7 +141,7 @@ public class SortedMapWritable extends AbstractMapWritable
for (Map.Entry<? extends WritableComparable, ? extends Writable> e:
t.entrySet()) {
instance.put(e.getKey(), e.getValue());
put(e.getKey(), e.getValue());
}
}

14
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/TestSortedMapWritable.java
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@ -164,4 +164,18 @@ public class TestSortedMapWritable {
assertTrue(failureReason, !mapA.equals(mapB));
assertTrue(failureReason, !mapB.equals(mapA));
}
@Test(timeout = 1000)
public void testPutAll() {
SortedMapWritable map1 = new SortedMapWritable();
SortedMapWritable map2 = new SortedMapWritable();
map1.put(new Text("key"), new Text("value"));
map2.putAll(map1);
assertEquals("map1 entries don't match map2 entries", map1, map2);
assertTrue(
"map2 doesn't have class information from map1",
map2.classToIdMap.containsKey(Text.class)
&& map2.idToClassMap.containsValue(Text.class));
}
}