MAPREDUCE-5228. Bring back FileInputFormat.Counter and FileOuputFormat.Counter for binary compatibility with 1.x mapred APIs. Contributed by Mayank Bansal.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1488060 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -245,6 +245,10 @@ Release 2.0.5-beta - UNRELEASED
     filecache.DistributedCache for binary compatibility with mapred in 1.x.
     (Zhijie Shen via vinodkv)
 
+    MAPREDUCE-5228. Bring back FileInputFormat.Counter and
+    FileOuputFormat.Counter for binary compatibility with 1.x mapred APIs.
+    (Mayank Bansal via vinodkv)
+
   OPTIMIZATIONS
 
     MAPREDUCE-4974. Optimising the LineRecordReader initialize() method 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/Counters.java

@@ -26,6 +26,7 @@ import java.io.DataOutput;
 import java.io.IOException;
 import java.text.ParseException;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.Iterator;
 
 import org.apache.commons.collections.IteratorUtils;
@@ -40,10 +41,9 @@ import org.apache.hadoop.mapreduce.counters.CounterGroupFactory;
 import org.apache.hadoop.mapreduce.counters.FileSystemCounterGroup;
 import org.apache.hadoop.mapreduce.counters.FrameworkCounterGroup;
 import org.apache.hadoop.mapreduce.counters.GenericCounter;
-import org.apache.hadoop.mapreduce.counters.LimitExceededException;
 import org.apache.hadoop.mapreduce.counters.Limits;
 import org.apache.hadoop.mapreduce.lib.input.FileInputFormatCounter;
-import org.apache.hadoop.mapreduce.util.CountersStrings;
+import org.apache.hadoop.mapreduce.lib.output.FileOutputFormatCounter;
 
 import com.google.common.collect.Iterators;
 
@@ -64,6 +64,12 @@ public class Counters
   
   public static int MAX_COUNTER_LIMIT = Limits.COUNTERS_MAX;
   public static int MAX_GROUP_LIMIT = Limits.GROUPS_MAX;
+  private static HashMap<String, String> depricatedCounterMap =
+      new HashMap<String, String>();
+  
+  static {
+    initDepricatedMap();
+  }
   
   public Counters() {
     super(groupFactory);
@@ -73,6 +79,27 @@ public class Counters
     super(newCounters, groupFactory);
   }
 
+  @SuppressWarnings({ "deprecation" })
+  private static void initDepricatedMap() {
+    depricatedCounterMap.put(FileInputFormat.Counter.class.getName(),
+      FileInputFormatCounter.class.getName());
+    depricatedCounterMap.put(FileOutputFormat.Counter.class.getName(),
+      FileOutputFormatCounter.class.getName());
+    depricatedCounterMap.put(
+      org.apache.hadoop.mapreduce.lib.input.FileInputFormat.Counter.class
+        .getName(), FileInputFormatCounter.class.getName());
+    depricatedCounterMap.put(
+      org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.Counter.class
+        .getName(), FileOutputFormatCounter.class.getName());
+  }
+
+  private static String getNewGroupKey(String oldGroup) {
+    if (depricatedCounterMap.containsKey(oldGroup)) {
+      return depricatedCounterMap.get(oldGroup);
+    }
+    return null;
+  }
+  
   /**
    * Downgrade new {@link org.apache.hadoop.mapreduce.Counters} to old Counters
    * @param newCounters new Counters
@@ -445,6 +472,10 @@ public class Counters
                " BYTES_READ as counter name instead");
       return findCounter(FileInputFormatCounter.BYTES_READ);
     }
+    String newGroupKey = getNewGroupKey(group);
+    if (newGroupKey != null) {
+      group = newGroupKey;
+    }
     return getGroup(group).getCounterForName(name);
   }
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/FileInputFormat.java

@@ -62,6 +62,11 @@ public abstract class FileInputFormat<K, V> implements InputFormat<K, V> {
   public static final Log LOG =
     LogFactory.getLog(FileInputFormat.class);
   
+  @Deprecated
+  public static enum Counter { 
+    BYTES_READ
+  }
+
   public static final String NUM_INPUT_FILES =
     org.apache.hadoop.mapreduce.lib.input.FileInputFormat.NUM_INPUT_FILES;
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/FileInputFormat_Counter.properties

@@ -0,0 +1,18 @@
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+
+# ResourceBundle properties file for file-input-format counters
+
+CounterGroupName=                  File Input Format Counters 
+
+BYTES_READ.name=				   Bytes Read

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/FileOutputFormat.java

@@ -36,6 +36,11 @@ import org.apache.hadoop.util.Progressable;
 @InterfaceStability.Stable
 public abstract class FileOutputFormat<K, V> implements OutputFormat<K, V> {
 
+  @Deprecated
+  public static enum Counter { 
+    BYTES_WRITTEN
+  }
+  
   /**
    * Set whether the output of the job is compressed.
    * @param conf the {@link JobConf} to modify

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/FileOutputFormat_Counter.properties

@@ -0,0 +1,18 @@
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+
+# ResourceBundle properties file for file-output-format counters
+
+CounterGroupName=                  File Output Format Counters 
+
+BYTES_WRITTEN.name=				   Bytes Written

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/FileInputFormat.java

@@ -69,6 +69,11 @@ public abstract class FileInputFormat<K, V> extends InputFormat<K, V> {
 
   private static final double SPLIT_SLOP = 1.1;   // 10% slop
   
+  @Deprecated
+  public static enum Counter { 
+    BYTES_READ
+  }
+
   private static final PathFilter hiddenFileFilter = new PathFilter(){
       public boolean accept(Path p){
         String name = p.getName(); 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/FileInputFormat_Counter.properties

@@ -0,0 +1,18 @@
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+
+# ResourceBundle properties file for file-input-format counters
+
+CounterGroupName=                  File Input Format Counters 
+
+BYTES_READ.name=				   Bytes Read

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/FileOutputFormat_Counter.properties

@@ -0,0 +1,18 @@
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+
+# ResourceBundle properties file for file-output-format counters
+
+CounterGroupName=                  File Output Format Counters 
+
+BYTES_WRITTEN.name=				   Bytes Written

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.java

@@ -60,6 +60,11 @@ public static final String COMPRESS_CODEC =
 public static final String COMPRESS_TYPE = "mapreduce.output.fileoutputformat.compress.type";
 public static final String OUTDIR = "mapreduce.output.fileoutputformat.outputdir";
 
+  @Deprecated
+  public static enum Counter {
+    BYTES_WRITTEN
+  }
+
   /**
    * Set whether the output of the job is compressed.
    * @param job the job to modify

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestJobCounters.java

@@ -80,6 +80,40 @@ public class TestJobCounters {
     }
   }
 
+  @SuppressWarnings("deprecation")
+  private void validateOldFileCounters(Counters counter, long fileBytesRead,
+      long fileBytesWritten, long mapOutputBytes,
+      long mapOutputMaterializedBytes) {
+
+    assertEquals(fileBytesRead,
+      counter.findCounter(FileInputFormat.Counter.BYTES_READ).getValue());
+
+    assertEquals(
+      fileBytesRead,
+      counter
+        .findCounter(
+          org.apache.hadoop.mapreduce.lib.input.FileInputFormat.Counter.BYTES_READ)
+        .getValue());
+
+    assertEquals(fileBytesWritten,
+      counter.findCounter(FileOutputFormat.Counter.BYTES_WRITTEN).getValue());
+
+    assertEquals(
+      fileBytesWritten,
+      counter
+        .findCounter(
+          org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.Counter.BYTES_WRITTEN)
+        .getValue());
+
+    if (mapOutputBytes >= 0) {
+      assertTrue(counter.findCounter(TaskCounter.MAP_OUTPUT_BYTES).getValue() != 0);
+    }
+    if (mapOutputMaterializedBytes >= 0) {
+      assertTrue(counter.findCounter(TaskCounter.MAP_OUTPUT_MATERIALIZED_BYTES)
+        .getValue() != 0);
+    }
+  }
+  
   private void validateCounters(Counters counter, long spillRecCnt,
                                 long mapInputRecords, long mapOutputRecords) {
       // Check if the numer of Spilled Records is same as expected
@@ -255,7 +289,7 @@ public class TestJobCounters {
     // 4 records/line = 61440 output records
     validateCounters(c1, 90112, 15360, 61440);
     validateFileCounters(c1, inputSize, 0, 0, 0);
-
+    validateOldFileCounters(c1, inputSize, 61928, 0, 0);
   }
 
   @Test
@@ -431,6 +465,18 @@ public class TestJobCounters {
     validateFileCounters(c1, inputSize, 0, -1, -1);
   }
 
+  @SuppressWarnings("deprecation")
+  @Test
+  public void testOldCounters() throws Exception {
+    Counters c1 = new Counters();
+    c1.incrCounter(FileInputFormat.Counter.BYTES_READ, 100);
+    c1.incrCounter(FileOutputFormat.Counter.BYTES_WRITTEN, 200);
+    c1.incrCounter(TaskCounter.MAP_OUTPUT_BYTES, 100);
+    c1.incrCounter(TaskCounter.MAP_OUTPUT_MATERIALIZED_BYTES, 100);
+    validateFileCounters(c1, 100, 200, 100, 100);
+    validateOldFileCounters(c1, 100, 200, 100, 100);
+  }
+
   /** 
    * Increases the JVM's heap usage to the specified target value.
    */