svn commit: r1533626 - in /hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src: main/java/org/apache/hadoop/streaming/io/ test/java/org/apache/hadoop/streaming/ test/java/org/apache/hadoop/streaming/io/

[sandy]

Author: sandy
Date: Fri Oct 18 20:46:05 2013
New Revision: 1533626

URL: http://svn.apache.org/r1533626
Log:
MAPREDUCE-5457. Add a KeyOnlyTextOutputReader to enable streaming to write out 
text files without separators (Sandy Ryza)

Added:
    
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/KeyOnlyTextInputWriter.java
      - copied unchanged from r1533624, 
hadoop/common/trunk/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/KeyOnlyTextInputWriter.java
    
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/KeyOnlyTextOutputReader.java
      - copied unchanged from r1533624, 
hadoop/common/trunk/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/KeyOnlyTextOutputReader.java
    
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/test/java/org/apache/hadoop/streaming/TestStreamingOutputOnlyKeys.java
      - copied unchanged from r1533624, 
hadoop/common/trunk/hadoop-tools/hadoop-streaming/src/test/java/org/apache/hadoop/streaming/TestStreamingOutputOnlyKeys.java
    
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/test/java/org/apache/hadoop/streaming/io/
      - copied from r1533624, 
hadoop/common/trunk/hadoop-tools/hadoop-streaming/src/test/java/org/apache/hadoop/streaming/io/
    
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/test/java/org/apache/hadoop/streaming/io/TestKeyOnlyTextOutputReader.java
      - copied unchanged from r1533624, 
hadoop/common/trunk/hadoop-tools/hadoop-streaming/src/test/java/org/apache/hadoop/streaming/io/TestKeyOnlyTextOutputReader.java
Modified:
    
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/IdentifierResolver.java
    
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/TextInputWriter.java

Modified: 
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/IdentifierResolver.java
URL: 
http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/IdentifierResolver.java?rev=1533626&r1=1533625&r2=1533626&view=diff
==============================================================================
--- 
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/IdentifierResolver.java
 (original)
+++ 
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/IdentifierResolver.java
 Fri Oct 18 20:46:05 2013
@@ -19,6 +19,7 @@
 package org.apache.hadoop.streaming.io;
 
 import org.apache.hadoop.io.BytesWritable;
+import org.apache.hadoop.io.NullWritable;
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.typedbytes.TypedBytesWritable;
 
@@ -34,6 +35,7 @@ public class IdentifierResolver {
   public static final String TEXT_ID = "text";
   public static final String RAW_BYTES_ID = "rawbytes";
   public static final String TYPED_BYTES_ID = "typedbytes";
+  public static final String KEY_ONLY_TEXT_ID = "keyonlytext";
   
   private Class<? extends InputWriter> inputWriterClass = null;
   private Class<? extends OutputReader> outputReaderClass = null;
@@ -55,6 +57,11 @@ public class IdentifierResolver {
       setOutputReaderClass(TypedBytesOutputReader.class);
       setOutputKeyClass(TypedBytesWritable.class);
       setOutputValueClass(TypedBytesWritable.class);
+    } else if (identifier.equalsIgnoreCase(KEY_ONLY_TEXT_ID)) {
+      setInputWriterClass(KeyOnlyTextInputWriter.class);
+      setOutputReaderClass(KeyOnlyTextOutputReader.class);
+      setOutputKeyClass(Text.class);
+      setOutputValueClass(NullWritable.class);
     } else { // assume TEXT_ID
       setInputWriterClass(TextInputWriter.class);
       setOutputReaderClass(TextOutputReader.class);

Modified: 
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/TextInputWriter.java
URL: 
http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/TextInputWriter.java?rev=1533626&r1=1533625&r2=1533626&view=diff
==============================================================================
--- 
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/TextInputWriter.java
 (original)
+++ 
hadoop/common/branches/branch-2/hadoop-tools/hadoop-streaming/src/main/java/org/apache/hadoop/streaming/io/TextInputWriter.java
 Fri Oct 18 20:46:05 2013
@@ -30,7 +30,7 @@ import org.apache.hadoop.streaming.PipeM
  */
 public class TextInputWriter extends InputWriter<Object, Object> {
   
-  private DataOutput clientOut;
+  protected DataOutput clientOut;
   private byte[] inputSeparator;
   
   @Override
@@ -53,7 +53,7 @@ public class TextInputWriter extends Inp
   }
   
   // Write an object to the output stream using UTF-8 encoding
-  private void writeUTF8(Object object) throws IOException {
+  protected void writeUTF8(Object object) throws IOException {
     byte[] bval;
     int valSize;
     if (object instanceof BytesWritable) {