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From t...@apache.org
Subject svn commit: r1611413 [4/18] - in /hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client: ./ hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/ hadoop-mapreduce-client-nativetask/ hadoop-mapreduce-client-nativ...
Date Thu, 17 Jul 2014 17:45:01 GMT
Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,67 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+import org.apache.hadoop.io.Writable;
+
+public class DefaultSerializer implements INativeSerializer<Writable> {
+
+  static class ModifiedByteArrayOutputStream extends ByteArrayOutputStream {
+
+    public byte[] getBuffer() {
+      return this.buf;
+    }
+  }
+
+  private final ModifiedByteArrayOutputStream outBuffer = new ModifiedByteArrayOutputStream();
+  private final DataOutputStream outData = new DataOutputStream(outBuffer);
+  private Writable buffered = null;
+  private int bufferedLength = -1;
+
+  @Override
+  public int getLength(Writable w) throws IOException {
+    // if (w == buffered) {
+    // return bufferedLength;
+    // }
+    buffered = null;
+    bufferedLength = -1;
+
+    outBuffer.reset();
+    w.write(outData);
+    bufferedLength = outBuffer.size();
+    buffered = w;
+    return bufferedLength;
+  }
+
+  @Override
+  public void serialize(Writable w, DataOutput out) throws IOException {
+    w.write(out);
+  }
+
+  @Override
+  public void deserialize(DataInput in, int length, Writable w) throws IOException {
+    w.readFields(in);
+  }
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/DoubleWritableSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/DoubleWritableSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/DoubleWritableSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/DoubleWritableSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,33 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.IOException;
+
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.nativetask.INativeComparable;
+
+public class DoubleWritableSerializer extends DefaultSerializer implements
+    INativeComparable {
+
+  @Override
+  public int getLength(Writable w) throws IOException {
+    return 8;
+  }
+}
\ No newline at end of file

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/FloatWritableSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/FloatWritableSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/FloatWritableSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/FloatWritableSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,33 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.IOException;
+
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.nativetask.INativeComparable;
+
+public class FloatWritableSerializer extends DefaultSerializer implements
+    INativeComparable {
+
+  @Override
+  public int getLength(Writable w) throws IOException {
+    return 4;
+  }
+}
\ No newline at end of file

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/IKVSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/IKVSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/IKVSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/IKVSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,71 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.IOException;
+
+import org.apache.hadoop.mapred.nativetask.buffer.DataInputStream;
+import org.apache.hadoop.mapred.nativetask.buffer.DataOutputStream;
+import org.apache.hadoop.mapred.nativetask.util.SizedWritable;
+
+/**
+ * serializes key-value pair
+ */
+public interface IKVSerializer {
+
+  /**
+   * update the length field of SizedWritable
+   * @param key
+   * @param value
+   * @throws IOException
+   */
+  public void updateLength(SizedWritable key, SizedWritable value) throws IOException;
+
+  /**
+   *
+   * @param out
+   * @param key
+   * @param value
+   * @return       bytes written
+   * @throws IOException
+   */
+  public int serializeKV(DataOutputStream out, SizedWritable key, SizedWritable value) throws IOException;
+
+  /**
+   * serialize partitionId as well
+   * @param out
+   * @param partitionId
+   * @param key
+   * @param value
+   * @return
+   * @throws IOException
+   */
+  public int serializePartitionKV(DataOutputStream out, int partitionId, SizedWritable key, SizedWritable value)
+      throws IOException;
+
+  /**
+   *
+   * @param in
+   * @param key
+   * @param value
+   * @return      bytes read
+   * @throws IOException
+   */
+  public int deserializeKV(DataInputStream in, SizedWritable key, SizedWritable value) throws IOException;
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/INativeSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/INativeSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/INativeSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/INativeSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,45 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+
+/**
+ * an INativeSerializer serializes and deserializes data transferred between
+ * Java and native. {@link DefaultSerializer} provides default implementations.
+ *
+ * Note: if you implemented your customized NativeSerializer instead of DefaultSerializer,
+ * you have to make sure the native side can serialize it correctly.
+ * 
+ */
+public interface INativeSerializer<T> {
+
+  /**
+   * get length of data to be serialized. If the data length is already known (like IntWritable)
+   * and could immediately be returned from this method, it is good chance to implement customized
+   * NativeSerializer for efficiency
+   */
+  public int getLength(T w) throws IOException;
+
+  public void serialize(T w, DataOutput out) throws IOException;
+
+  public void deserialize(DataInput in, int length, T w) throws IOException;
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/IntWritableSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/IntWritableSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/IntWritableSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/IntWritableSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,33 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.IOException;
+
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.nativetask.INativeComparable;
+
+public class IntWritableSerializer extends DefaultSerializer implements
+    INativeComparable {
+
+  @Override
+  public int getLength(Writable w) throws IOException {
+    return 4;
+  }
+}
\ No newline at end of file

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/KVSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/KVSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/KVSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/KVSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,108 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.IOException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.nativetask.Constants;
+import org.apache.hadoop.mapred.nativetask.buffer.DataInputStream;
+import org.apache.hadoop.mapred.nativetask.buffer.DataOutputStream;
+import org.apache.hadoop.mapred.nativetask.util.SizedWritable;
+
+public class KVSerializer<K, V> implements IKVSerializer {
+
+
+  private static final Log LOG = LogFactory.getLog(KVSerializer.class);
+  
+  public static int KV_HEAD_LENGTH = Constants.SIZEOF_KV_LENGTH;
+
+  private final INativeSerializer<Writable> keySerializer;
+  private final INativeSerializer<Writable> valueSerializer;
+
+  public KVSerializer(Class<K> kclass, Class<V> vclass) throws IOException {
+    
+    this.keySerializer = NativeSerialization.getInstance().getSerializer(kclass);
+    this.valueSerializer = NativeSerialization.getInstance().getSerializer(vclass);
+  }
+
+  @Override
+  public void updateLength(SizedWritable key, SizedWritable value) throws IOException {
+    key.length = keySerializer.getLength(key.v);
+    value.length = valueSerializer.getLength(value.v);
+    return;
+  }
+
+  @Override
+  public int serializeKV(DataOutputStream out, SizedWritable key, SizedWritable value) throws IOException {
+    return serializePartitionKV(out, -1, key, value);
+  }
+
+  @Override
+  public int serializePartitionKV(DataOutputStream out, int partitionId, SizedWritable key, SizedWritable value)
+      throws IOException {
+
+    if (key.length == SizedWritable.INVALID_LENGTH || value.length == SizedWritable.INVALID_LENGTH) {
+      updateLength(key, value);
+    }
+
+    final int keyLength = key.length;
+    final int valueLength = value.length;
+
+    int bytesWritten = KV_HEAD_LENGTH + keyLength + valueLength;
+    if (partitionId != -1) {
+      bytesWritten += Constants.SIZEOF_PARTITION_LENGTH;
+    }
+
+    if (out.hasUnFlushedData() && out.shortOfSpace(bytesWritten)) {
+      out.flush();
+    }
+
+    if (partitionId != -1) {
+      out.writeInt(partitionId);
+    }
+        
+    out.writeInt(keyLength);
+    out.writeInt(valueLength);
+    
+    keySerializer.serialize(key.v, out);
+    valueSerializer.serialize(value.v, out);
+
+    return bytesWritten;
+  }
+
+  @Override
+  public int deserializeKV(DataInputStream in, SizedWritable key, SizedWritable value) throws IOException {
+
+    if (!in.hasUnReadData()) {
+      return 0;
+    }
+
+    key.length = in.readInt();
+    value.length = in.readInt();
+
+    keySerializer.deserialize(in, key.length, key.v);
+    valueSerializer.deserialize(in, value.length, value.v);
+
+    return key.length + value.length + KV_HEAD_LENGTH;
+  }
+
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/LongWritableSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/LongWritableSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/LongWritableSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/LongWritableSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,32 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.IOException;
+
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.nativetask.INativeComparable;
+
+public class LongWritableSerializer extends DefaultSerializer implements
+    INativeComparable {
+  @Override
+  public int getLength(Writable w) throws IOException {
+    return 8;
+  }
+}
\ No newline at end of file

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/NativeSerialization.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/NativeSerialization.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/NativeSerialization.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/NativeSerialization.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,86 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.IOException;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.hadoop.io.Writable;
+
+public class NativeSerialization {
+
+  private final ConcurrentHashMap<String, Class<?>> map = new ConcurrentHashMap<String, Class<?>>();
+
+  public boolean accept(Class<?> c) {
+    return Writable.class.isAssignableFrom(c);
+  }
+
+  @SuppressWarnings("unchecked")
+  public INativeSerializer<Writable> getSerializer(Class<?> c) throws IOException {
+
+    if (null == c) {
+      return null;
+    }
+    if (!Writable.class.isAssignableFrom(c)) {
+      throw new IOException("Cannot serialize type " + c.getName() + ", we only accept subclass of Writable");
+    }
+    final String name = c.getName();
+    final Class<?> serializer = map.get(name);
+
+    if (null != serializer) {
+      try {
+        return (INativeSerializer<Writable>) serializer.newInstance();
+      } catch (final Exception e) {
+        throw new IOException(e);
+      }
+    }
+    return new DefaultSerializer();
+  }
+
+  public void register(String klass, Class<?> serializer) throws IOException {
+    if (null == klass || null == serializer) {
+      throw new IOException("invalid arguments, klass or serializer is null");
+    }
+
+    if (!INativeSerializer.class.isAssignableFrom(serializer)) {
+      throw new IOException("Serializer is not assigable from INativeSerializer");
+    }
+
+    final Class<?> storedSerializer = map.get(klass);
+    if (null == storedSerializer) {
+      map.put(klass, serializer);
+      return;
+    } else {
+      if (!storedSerializer.getName().equals(serializer.getName())) {
+        throw new IOException("Error! Serializer already registered, exist: " + storedSerializer.getName() + ", new: "
+            + serializer.getName());
+      }
+    }
+  }
+
+  public void reset() {
+    map.clear();
+  }
+
+  private static NativeSerialization instance = new NativeSerialization();
+
+  public static NativeSerialization getInstance() {
+    return instance;
+  }
+}
\ No newline at end of file

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/NullWritableSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/NullWritableSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/NullWritableSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/NullWritableSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,33 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.IOException;
+
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.nativetask.INativeComparable;
+
+public class NullWritableSerializer extends DefaultSerializer implements
+    INativeComparable {
+
+  @Override
+  public int getLength(Writable w) throws IOException {
+    return 0;
+  }
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/SerializationFramework.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/SerializationFramework.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/SerializationFramework.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/SerializationFramework.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,32 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.hadoop.mapred.nativetask.serde;
+
+public enum SerializationFramework {
+  WRITABLE_SERIALIZATION(0), NATIVE_SERIALIZATION(1);
+
+  private int type;
+
+  SerializationFramework(int type) {
+    this.type = type;
+  }
+
+  public int getType() {
+    return type;
+  }
+};

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/TextSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/TextSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/TextSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/TextSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,54 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+
+import org.apache.hadoop.io.Text;
+import org.apache.hadoop.mapred.nativetask.INativeComparable;
+
+public class TextSerializer implements INativeSerializer<Text>, INativeComparable {
+
+  public TextSerializer() throws SecurityException, NoSuchMethodException {
+  }
+
+  @Override
+  public int getLength(Text w) throws IOException {
+    return w.getLength();
+  }
+
+  @Override
+  public void serialize(Text w, DataOutput out) throws IOException {
+     out.write(w.getBytes(), 0, w.getLength());
+  }
+
+  @Override
+  public void deserialize(DataInput in, int length, Text w) throws IOException {
+    try {
+      w.setCapacity(length, true);
+      w.setLength(length);
+    } catch (final Exception e) {
+      throw new IOException(e);
+    }
+    final byte[] bytes = w.getBytes();
+    in.readFully(bytes, 0, length);
+  }
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/VIntWritableSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/VIntWritableSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/VIntWritableSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/VIntWritableSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,26 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.nativetask.INativeComparable;
+
+public class VIntWritableSerializer extends DefaultSerializer implements
+    INativeComparable {
+}
\ No newline at end of file

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/VLongWritableSerializer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/VLongWritableSerializer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/VLongWritableSerializer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/serde/VLongWritableSerializer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,26 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.serde;
+
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.nativetask.INativeComparable;
+
+public class VLongWritableSerializer extends DefaultSerializer implements
+    INativeComparable {
+}
\ No newline at end of file

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/BytesUtil.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/BytesUtil.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/BytesUtil.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/BytesUtil.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,267 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.util;
+
+import java.io.UnsupportedEncodingException;
+
+public class BytesUtil {
+
+  public static final int SIZEOF_INT = Integer.SIZE / Byte.SIZE;
+  public static final int SIZEOF_LONG = Long.SIZE / Byte.SIZE;
+
+  public static byte[] toBytes(String str) {
+    if (str == null) {
+      return null;
+    }
+    try {
+      return str.getBytes("utf-8");
+    } catch (final UnsupportedEncodingException e) {
+      throw new RuntimeException(e.getMessage());
+    }
+  }
+
+  public static String fromBytes(byte[] data) {
+    if (data == null) {
+      return null;
+    }
+    try {
+      return new String(data, "utf-8");
+    } catch (final UnsupportedEncodingException e) {
+      throw new RuntimeException(e.getMessage());
+    }
+  }
+
+  /**
+   * Converts a byte array to an int value
+   * @param bytes byte array
+   * @return the int value
+   */
+  public static int toInt(byte[] bytes) {
+    return toInt(bytes, 0, SIZEOF_INT);
+  }
+
+  /**
+   * Converts a byte array to an int value
+   * @param bytes byte array
+   * @param offset offset into array
+   * @param length length of int (has to be {@link #SIZEOF_INT})
+   * @return the int value
+   * @throws RuntimeException if length is not {@link #SIZEOF_INT} or
+   * if there's not enough room in the array at the offset indicated.
+   */
+  public static int toInt(byte[] bytes, int offset, final int length) {
+    if (length != SIZEOF_INT || offset + length > bytes.length) {
+      throw new RuntimeException(
+        "toInt exception. length not equals to SIZE of Int or buffer overflow");
+    }
+    int n = 0;
+    for (int i = offset; i< offset + length; i++) {
+      n <<= 4;
+      n ^= bytes[i] & 0xff;
+    }
+    return n;
+  }
+
+  /**
+   * Converts a byte array to a long value.
+   * @param bytes array
+   * @return the long value
+   */
+  public static long toLong(byte[] bytes) {
+    return toLong(bytes, 0, SIZEOF_LONG);
+  }
+
+   /**
+   * Converts a byte array to a long value.
+   *
+   * @param bytes array of bytes
+   * @param offset offset into array
+   * @return the long value
+   */
+  public static long toLong(byte[] bytes, int offset) {
+    return toLong(bytes, offset, SIZEOF_LONG);
+  }
+
+  /**
+   * Converts a byte array to a long value.
+   *
+   * @param bytes array of bytes
+   * @param offset offset into array
+   * @param length length of data (must be {@link #SIZEOF_LONG})
+   * @return the long value
+   * @throws RuntimeException if length is not {@link #SIZEOF_LONG} or
+   * if there's not enough room in the array at the offset indicated.
+   */
+  public static long toLong(byte[] bytes, int offset, final int length) {
+    if (length != SIZEOF_LONG || offset + length > bytes.length) {
+      throw new RuntimeException(
+        "toLong exception. length not equals to SIZE of Long or buffer overflow");
+    }
+    long l = 0;
+    for (int i = offset; i < offset + length; i++) {
+      l <<= 8;
+      l ^= bytes[i] & 0xff;
+    }
+    return l;
+  }
+
+  /**
+   * Presumes float encoded as IEEE 754 floating-point "single format"
+   * @param bytes byte array
+   * @return Float made from passed byte array.
+   */
+  public static float toFloat(byte [] bytes) {
+    return toFloat(bytes, 0);
+  }
+
+  /**
+   * Presumes float encoded as IEEE 754 floating-point "single format"
+   * @param bytes array to convert
+   * @param offset offset into array
+   * @return Float made from passed byte array.
+   */
+  public static float toFloat(byte [] bytes, int offset) {
+    return Float.intBitsToFloat(toInt(bytes, offset, SIZEOF_INT));
+  }
+
+  /**
+   * @param bytes byte array
+   * @return Return double made from passed bytes.
+   */
+  public static double toDouble(final byte [] bytes) {
+    return toDouble(bytes, 0);
+  }
+
+  /**
+   * @param bytes byte array
+   * @param offset offset where double is
+   * @return Return double made from passed bytes.
+   */
+  public static double toDouble(final byte [] bytes, final int offset) {
+    return Double.longBitsToDouble(toLong(bytes, offset, SIZEOF_LONG));
+  }
+
+  /**
+   * Write a printable representation of a byte array.
+   *
+   * @param b byte array
+   * @return string
+   * @see #toStringBinary(byte[], int, int)
+   */
+  public static String toStringBinary(final byte [] b) {
+    if (b == null)
+      return "null";
+    return toStringBinary(b, 0, b.length);
+  }
+
+  /**
+   * Write a printable representation of a byte array. Non-printable
+   * characters are hex escaped in the format \\x%02X, eg:
+   * \x00 \x05 etc
+   *
+   * @param b array to write out
+   * @param off offset to start at
+   * @param len length to write
+   * @return string output
+   */
+  public static String toStringBinary(final byte [] b, int off, int len) {
+    StringBuilder result = new StringBuilder();
+    // Just in case we are passed a 'len' that is > buffer length...
+    if (off >= b.length) return result.toString();
+    if (off + len > b.length) len = b.length - off;
+    for (int i = off; i < off + len ; ++i ) {
+      int ch = b[i] & 0xFF;
+      if ( (ch >= '0' && ch <= '9')
+        || (ch >= 'A' && ch <= 'Z')
+        || (ch >= 'a' && ch <= 'z')
+        || " `~!@#$%^&*()-_=+[]{}|;:'\",.<>/?".indexOf(ch) >= 0 ) {
+        result.append((char)ch);
+      } else {
+        result.append(String.format("\\x%02X", ch));
+      }
+    }
+    return result.toString();
+  }
+
+  /**
+   * Convert a boolean to a byte array. True becomes -1
+   * and false becomes 0.
+   *
+   * @param b value
+   * @return <code>b</code> encoded in a byte array.
+   */
+  public static byte [] toBytes(final boolean b) {
+    return new byte[] { b ? (byte) -1 : (byte) 0 };
+  }
+
+  /**
+   * Convert an int value to a byte array.  Big-endian.  Same as what DataOutputStream.writeInt
+   * does.
+   *
+   * @param val value
+   * @return the byte array
+   */
+  public static byte[] toBytes(int val) {
+    byte [] b = new byte[4];
+    for(int i = 3; i > 0; i--) {
+      b[i] = (byte) val;
+      val >>>= 8;
+    }
+    b[0] = (byte) val;
+    return b;
+  }
+
+  /**
+   * Convert a long value to a byte array using big-endian.
+   *
+   * @param val value to convert
+   * @return the byte array
+   */
+  public static byte[] toBytes(long val) {
+    byte [] b = new byte[8];
+    for (int i = 7; i > 0; i--) {
+      b[i] = (byte) val;
+      val >>>= 8;
+    }
+    b[0] = (byte) val;
+    return b;
+  }
+
+  /**
+   * @param f float value
+   * @return the float represented as byte []
+   */
+  public static byte [] toBytes(final float f) {
+    // Encode it as int
+    return toBytes(Float.floatToRawIntBits(f));
+  }
+
+  /**
+   * Serialize a double as the IEEE 754 double format output. The resultant
+   * array will be 8 bytes long.
+   *
+   * @param d value
+   * @return the double represented as byte []
+   */
+  public static byte [] toBytes(final double d) {
+    // Encode it as a long
+    return toBytes(Double.doubleToRawLongBits(d));
+  }
+
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ConfigUtil.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ConfigUtil.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ConfigUtil.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ConfigUtil.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,43 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.hadoop.mapred.nativetask.util;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.hadoop.conf.Configuration;
+
+public class ConfigUtil {
+  public static byte[][] toBytes(Configuration conf) {
+    List<byte[]> nativeConfigs = new ArrayList<byte[]>();
+    for (Map.Entry<String, String> e : conf) {
+      nativeConfigs.add(BytesUtil.toBytes(e.getKey()));
+      nativeConfigs.add(BytesUtil.toBytes(e.getValue()));
+    }
+    return nativeConfigs.toArray(new byte[nativeConfigs.size()][]);
+  }
+  
+  public static String booleansToString(boolean[] value) {
+    StringBuilder sb = new StringBuilder();
+    for (boolean b: value) {
+      sb.append(b ? 1 : 0);
+    }
+    return sb.toString();
+  }
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/LocalJobOutputFiles.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/LocalJobOutputFiles.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/LocalJobOutputFiles.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/LocalJobOutputFiles.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,189 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.hadoop.mapred.nativetask.util;
+
+import java.io.IOException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.LocalDirAllocator;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapred.TaskID;
+
+public class LocalJobOutputFiles implements NativeTaskOutput {
+
+  static final String TASKTRACKER_OUTPUT = "output";
+  static final String REDUCE_INPUT_FILE_FORMAT_STRING = "%s/map_%d.out";
+  static final String SPILL_FILE_FORMAT_STRING = "%s/spill%d.out";
+  static final String SPILL_INDEX_FILE_FORMAT_STRING = "%s/spill%d.out.index";
+  static final String OUTPUT_FILE_FORMAT_STRING = "%s/file.out";
+  static final String OUTPUT_FILE_INDEX_FORMAT_STRING = "%s/file.out.index";
+
+  private JobConf conf;
+  private LocalDirAllocator lDirAlloc = new LocalDirAllocator("mapred.local.dir");
+
+  public LocalJobOutputFiles(Configuration conf, String id) {
+    this.conf = new JobConf(conf);
+  }
+
+  /**
+   * Return the path to local map output file created earlier
+   * 
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputFile() throws IOException {
+    String path = String.format(OUTPUT_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT);
+    return lDirAlloc.getLocalPathToRead(path, conf);
+  }
+
+  /**
+   * Create a local map output file name.
+   * 
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputFileForWrite(long size) throws IOException {
+    String path = String.format(OUTPUT_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT);
+    return lDirAlloc.getLocalPathForWrite(path, size, conf);
+  }
+
+  /**
+   * Return the path to a local map output index file created earlier
+   * 
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputIndexFile() throws IOException {
+    String path = String.format(OUTPUT_FILE_INDEX_FORMAT_STRING, TASKTRACKER_OUTPUT);
+    return lDirAlloc.getLocalPathToRead(path, conf);
+  }
+
+  /**
+   * Create a local map output index file name.
+   * 
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputIndexFileForWrite(long size) throws IOException {
+    String path = String.format(OUTPUT_FILE_INDEX_FORMAT_STRING, TASKTRACKER_OUTPUT);
+    return lDirAlloc.getLocalPathForWrite(path, size, conf);
+  }
+
+  /**
+   * Return a local map spill file created earlier.
+   * 
+   * @param spillNumber
+   *          the number
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillFile(int spillNumber) throws IOException {
+    String path = String.format(SPILL_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, spillNumber);
+    return lDirAlloc.getLocalPathToRead(path, conf);
+  }
+
+  /**
+   * Create a local map spill file name.
+   * 
+   * @param spillNumber
+   *          the number
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillFileForWrite(int spillNumber, long size) throws IOException {
+    String path = String.format(SPILL_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, spillNumber);
+    return lDirAlloc.getLocalPathForWrite(path, size, conf);
+  }
+
+  /**
+   * Return a local map spill index file created earlier
+   * 
+   * @param spillNumber
+   *          the number
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillIndexFile(int spillNumber) throws IOException {
+    String path = String
+.format(SPILL_INDEX_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, spillNumber);
+    return lDirAlloc.getLocalPathToRead(path, conf);
+  }
+
+  /**
+   * Create a local map spill index file name.
+   * 
+   * @param spillNumber
+   *          the number
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillIndexFileForWrite(int spillNumber, long size) throws IOException {
+    String path = String
+.format(SPILL_INDEX_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, spillNumber);
+    return lDirAlloc.getLocalPathForWrite(path, size, conf);
+  }
+
+  /**
+   * Return a local reduce input file created earlier
+   * 
+   * @param mapId
+   *          a map task id
+   * @return path
+   * @throws IOException
+   */
+  public Path getInputFile(int mapId) throws IOException {
+    return lDirAlloc.getLocalPathToRead(
+        String.format(REDUCE_INPUT_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, Integer.valueOf(mapId)),
+        conf);
+  }
+
+  /**
+   * Create a local reduce input file name.
+   * 
+   * @param mapId
+   *          a map task id
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getInputFileForWrite(TaskID mapId, long size, Configuration conf) throws IOException {
+    return lDirAlloc.getLocalPathForWrite(
+        String.format(REDUCE_INPUT_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, mapId.getId()), size,
+        conf);
+  }
+
+  /** Removes all of the files related to a task. */
+  public void removeAll() throws IOException {
+    conf.deleteLocalFiles(TASKTRACKER_OUTPUT);
+  }
+
+  public String getOutputName(int partition) {
+    return String.format("part-%05d", partition);
+  }
+
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/NativeTaskOutput.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/NativeTaskOutput.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/NativeTaskOutput.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/NativeTaskOutput.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,137 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.hadoop.mapred.nativetask.util;
+
+import java.io.IOException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.mapred.TaskID;
+
+/**
+ * base class of output files manager.
+ */
+public interface NativeTaskOutput {
+
+  /**
+   * Return the path to local map output file created earlier
+   * 
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputFile() throws IOException;
+
+  /**
+   * Create a local map output file name.
+   * 
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputFileForWrite(long size) throws IOException;
+
+  /**
+   * Return the path to a local map output index file created earlier
+   * 
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputIndexFile() throws IOException;
+
+  /**
+   * Create a local map output index file name.
+   * 
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputIndexFileForWrite(long size) throws IOException;
+
+  /**
+   * Return a local map spill file created earlier.
+   * 
+   * @param spillNumber
+   *          the number
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillFile(int spillNumber) throws IOException;
+
+  /**
+   * Create a local map spill file name.
+   * 
+   * @param spillNumber
+   *          the number
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillFileForWrite(int spillNumber, long size) throws IOException;
+
+  /**
+   * Return a local map spill index file created earlier
+   * 
+   * @param spillNumber
+   *          the number
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillIndexFile(int spillNumber) throws IOException;
+
+  /**
+   * Create a local map spill index file name.
+   * 
+   * @param spillNumber
+   *          the number
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillIndexFileForWrite(int spillNumber, long size) throws IOException;
+
+  /**
+   * Return a local reduce input file created earlier
+   * 
+   * @param mapId
+   *          a map task id
+   * @return path
+   * @throws IOException
+   */
+  public Path getInputFile(int mapId) throws IOException;
+
+  /**
+   * Create a local reduce input file name.
+   * 
+   * @param mapId
+   *          a map task id
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getInputFileForWrite(TaskID mapId, long size, Configuration conf) throws IOException;
+
+  /** Removes all of the files related to a task. */
+  public void removeAll() throws IOException;
+
+  public String getOutputName(int partition);
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/NativeTaskOutputFiles.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/NativeTaskOutputFiles.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/NativeTaskOutputFiles.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/NativeTaskOutputFiles.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,199 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.hadoop.mapred.nativetask.util;
+
+import java.io.IOException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.LocalDirAllocator;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapred.TaskID;
+
+/**
+ * Manipulate the working area for the transient store for maps and reduces.
+ * 
+ * This class is used by map and reduce tasks to identify the directories that they need to write
+ * to/read from for intermediate files. The callers of these methods are from child space and see
+ * mapreduce.cluster.local.dir as taskTracker/jobCache/jobId/attemptId This class should not be used
+ * from TaskTracker space.
+ */
+
+public class NativeTaskOutputFiles implements NativeTaskOutput {
+
+  static final String TASKTRACKER_OUTPUT = "output";
+  static final String REDUCE_INPUT_FILE_FORMAT_STRING = "%s/map_%d.out";
+  static final String SPILL_FILE_FORMAT_STRING = "%s/%s/spill%d.out";
+  static final String SPILL_INDEX_FILE_FORMAT_STRING = "%s/%s/spill%d.out.index";
+  static final String OUTPUT_FILE_FORMAT_STRING = "%s/%s/file.out";
+  static final String OUTPUT_FILE_INDEX_FORMAT_STRING = "%s/%s/file.out.index";
+
+  private String id;
+  private JobConf conf;
+  private LocalDirAllocator lDirAlloc = new LocalDirAllocator("mapred.local.dir");
+
+  public NativeTaskOutputFiles(Configuration conf, String id) {
+    this.conf = new JobConf(conf);
+    this.id = id;
+  }
+
+  /**
+   * Return the path to local map output file created earlier
+   * 
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputFile() throws IOException {
+    String path = String.format(OUTPUT_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, id);
+    return lDirAlloc.getLocalPathToRead(path, conf);
+  }
+
+  /**
+   * Create a local map output file name.
+   * 
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputFileForWrite(long size) throws IOException {
+    String path = String.format(OUTPUT_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, id);
+    return lDirAlloc.getLocalPathForWrite(path, size, conf);
+  }
+
+  /**
+   * Return the path to a local map output index file created earlier
+   * 
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputIndexFile() throws IOException {
+    String path = String.format(OUTPUT_FILE_INDEX_FORMAT_STRING, TASKTRACKER_OUTPUT, id);
+    return lDirAlloc.getLocalPathToRead(path, conf);
+  }
+
+  /**
+   * Create a local map output index file name.
+   * 
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getOutputIndexFileForWrite(long size) throws IOException {
+    String path = String.format(OUTPUT_FILE_INDEX_FORMAT_STRING, TASKTRACKER_OUTPUT, id);
+    return lDirAlloc.getLocalPathForWrite(path, size, conf);
+  }
+
+  /**
+   * Return a local map spill file created earlier.
+   * 
+   * @param spillNumber
+   *          the number
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillFile(int spillNumber) throws IOException {
+    String path = String.format(SPILL_FILE_FORMAT_STRING, id, TASKTRACKER_OUTPUT, spillNumber);
+    return lDirAlloc.getLocalPathToRead(path, conf);
+  }
+
+  /**
+   * Create a local map spill file name.
+   * 
+   * @param spillNumber
+   *          the number
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillFileForWrite(int spillNumber, long size) throws IOException {
+    String path = String.format(SPILL_FILE_FORMAT_STRING, id, TASKTRACKER_OUTPUT, spillNumber);
+    return lDirAlloc.getLocalPathForWrite(path, size, conf);
+  }
+
+  /**
+   * Return a local map spill index file created earlier
+   * 
+   * @param spillNumber
+   *          the number
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillIndexFile(int spillNumber) throws IOException {
+    String path = String
+        .format(SPILL_INDEX_FILE_FORMAT_STRING, id, TASKTRACKER_OUTPUT, spillNumber);
+    return lDirAlloc.getLocalPathToRead(path, conf);
+  }
+
+  /**
+   * Create a local map spill index file name.
+   * 
+   * @param spillNumber
+   *          the number
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getSpillIndexFileForWrite(int spillNumber, long size) throws IOException {
+    String path = String
+        .format(SPILL_INDEX_FILE_FORMAT_STRING, id, TASKTRACKER_OUTPUT, spillNumber);
+    return lDirAlloc.getLocalPathForWrite(path, size, conf);
+  }
+
+  /**
+   * Return a local reduce input file created earlier
+   * 
+   * @param mapId
+   *          a map task id
+   * @return path
+   * @throws IOException
+   */
+  public Path getInputFile(int mapId) throws IOException {
+    return lDirAlloc.getLocalPathToRead(
+        String.format(REDUCE_INPUT_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, Integer.valueOf(mapId)),
+        conf);
+  }
+
+  /**
+   * Create a local reduce input file name.
+   * 
+   * @param mapId
+   *          a map task id
+   * @param size
+   *          the size of the file
+   * @return path
+   * @throws IOException
+   */
+  public Path getInputFileForWrite(TaskID mapId, long size, Configuration conf) throws IOException {
+    return lDirAlloc.getLocalPathForWrite(
+        String.format(REDUCE_INPUT_FILE_FORMAT_STRING, TASKTRACKER_OUTPUT, mapId.getId()), size,
+        conf);
+  }
+
+  /** Removes all of the files related to a task. */
+  public void removeAll() throws IOException {
+    conf.deleteLocalFiles(TASKTRACKER_OUTPUT);
+  }
+
+  public String getOutputName(int partition) {
+    return String.format("part-%05d", partition);
+  }
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/OutputUtil.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/OutputUtil.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/OutputUtil.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/OutputUtil.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,46 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.util;
+
+import java.lang.reflect.Constructor;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.conf.Configuration;
+
+
+public class OutputUtil {
+
+  private static Log LOG = LogFactory.getLog(OutputUtil.class);
+  public static final String NATIVE_TASK_OUTPUT_MANAGER = "nativetask.output.manager";
+
+  public static NativeTaskOutput createNativeTaskOutput(Configuration conf, String id) {
+    Class<?> clazz = conf.getClass(OutputUtil.NATIVE_TASK_OUTPUT_MANAGER,
+        NativeTaskOutputFiles.class);
+    LOG.info(OutputUtil.NATIVE_TASK_OUTPUT_MANAGER + " = " + clazz.getName());
+    try {
+      Constructor<?> ctor = clazz.getConstructor(Configuration.class, String.class);
+      ctor.setAccessible(true);
+      NativeTaskOutput instance = (NativeTaskOutput) ctor.newInstance(conf, id);
+      return instance;
+    } catch (Exception e) {
+      return null;
+    }
+  }
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ReadWriteBuffer.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ReadWriteBuffer.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ReadWriteBuffer.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/ReadWriteBuffer.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,150 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+package org.apache.hadoop.mapred.nativetask.util;
+
+public class ReadWriteBuffer {
+  private byte[] _buff;
+  private int _writePoint;
+  private int _readPoint;
+  final int CACHE_LINE_SIZE = 16;
+
+  public ReadWriteBuffer(int length) {
+    if (length > 0) {
+      _buff = new byte[length];
+    }
+  }
+
+  public ReadWriteBuffer() {
+    _buff = new byte[CACHE_LINE_SIZE];
+  }
+
+  public ReadWriteBuffer(byte[] bytes) {
+    _buff = bytes;
+    _writePoint = 0;
+    _readPoint = 0;
+  }
+
+  public void reset(byte[] newBuff) {
+    _buff = newBuff;
+    _writePoint = 0;
+    _readPoint = 0;
+  }
+
+  public void setReadPoint(int pos) {
+    _readPoint = pos;
+  }
+
+  public void setWritePoint(int pos) {
+    _writePoint = pos;
+  }
+
+  public byte[] getBuff() {
+    return _buff;
+  }
+
+  public int getWritePoint() {
+    return _writePoint;
+  }
+
+  public int getReadPoint() {
+    return _readPoint;
+  }
+
+  public void writeInt(int v) {
+    checkWriteSpaceAndResizeIfNecessary(4);
+
+    _buff[_writePoint + 0] = (byte) ((v >>> 0) & 0xFF);
+    _buff[_writePoint + 1] = (byte) ((v >>> 8) & 0xFF);
+    _buff[_writePoint + 2] = (byte) ((v >>> 16) & 0xFF);
+    _buff[_writePoint + 3] = (byte) ((v >>> 24) & 0xFF);
+
+    _writePoint += 4;
+  }
+
+  public void writeLong(long v) {
+    checkWriteSpaceAndResizeIfNecessary(8);
+
+    _buff[_writePoint + 0] = (byte) (v >>> 0);
+    _buff[_writePoint + 1] = (byte) (v >>> 8);
+    _buff[_writePoint + 2] = (byte) (v >>> 16);
+    _buff[_writePoint + 3] = (byte) (v >>> 24);
+    _buff[_writePoint + 4] = (byte) (v >>> 32);
+    _buff[_writePoint + 5] = (byte) (v >>> 40);
+    _buff[_writePoint + 6] = (byte) (v >>> 48);
+    _buff[_writePoint + 7] = (byte) (v >>> 56);
+
+    _writePoint += 8;
+  }
+
+  public void writeBytes(byte b[], int off, int len) {
+    writeInt(len);
+    checkWriteSpaceAndResizeIfNecessary(len);
+    System.arraycopy(b, off, _buff, _writePoint, len);
+    _writePoint += len;
+  }
+
+  public int readInt() {
+    final int ch4 = 0xff & (_buff[_readPoint + 0]);
+    final int ch3 = 0xff & (_buff[_readPoint + 1]);
+    final int ch2 = 0xff & (_buff[_readPoint + 2]);
+    final int ch1 = 0xff & (_buff[_readPoint + 3]);
+    _readPoint += 4;
+    return ((ch1 << 24) + (ch2 << 16) + (ch3 << 8) + (ch4 << 0));
+  }
+
+  public long readLong() {
+    final long result = ((_buff[_readPoint + 0] & 255) << 0) + ((_buff[_readPoint + 1] & 255) << 8)
+        + ((_buff[_readPoint + 2] & 255) << 16) + ((long) (_buff[_readPoint + 3] & 255) << 24)
+        + ((long) (_buff[_readPoint + 4] & 255) << 32) + ((long) (_buff[_readPoint + 5] & 255) << 40)
+        + ((long) (_buff[_readPoint + 6] & 255) << 48) + (((long) _buff[_readPoint + 7] << 56));
+
+    _readPoint += 8;
+    return result;
+  }
+
+  public byte[] readBytes() {
+    final int length = readInt();
+    final byte[] result = new byte[length];
+    System.arraycopy(_buff, _readPoint, result, 0, length);
+    _readPoint += length;
+    return result;
+  }
+
+  public void writeString(String str) {
+    final byte[] bytes = BytesUtil.toBytes(str);
+    writeBytes(bytes, 0, bytes.length);
+  }
+
+  public String readString() {
+    final byte[] bytes = readBytes();
+    return BytesUtil.fromBytes(bytes);
+  }
+
+  private void checkWriteSpaceAndResizeIfNecessary(int toBeWritten) {
+
+    if (_buff.length - _writePoint >= toBeWritten) {
+      return;
+    }
+    final int newLength = (toBeWritten + _writePoint > CACHE_LINE_SIZE) ? (toBeWritten + _writePoint) : CACHE_LINE_SIZE;
+    final byte[] newBuff = new byte[newLength];
+    System.arraycopy(_buff, 0, newBuff, 0, _writePoint);
+    _buff = newBuff;
+  }
+
+};

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/SizedWritable.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/SizedWritable.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/SizedWritable.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/SizedWritable.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,53 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.hadoop.mapred.nativetask.util;
+
+import java.io.IOException;
+
+import org.apache.hadoop.io.DataInputBuffer;
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.util.ReflectionUtils;
+
+public class SizedWritable<T> {
+  public static int INVALID_LENGTH = -1;
+
+  public int length = INVALID_LENGTH;
+  public Writable v;
+
+  public SizedWritable(Class<?> klass) {
+    if (null != klass) {
+      v = (Writable) ReflectionUtils.newInstance(klass, null);
+    }
+    length = INVALID_LENGTH;
+  }
+
+  public void readFields(DataInputBuffer key) throws IOException {
+    if (null != key) {
+      this.v.readFields(key);
+      this.length = INVALID_LENGTH;
+    } else {
+      throw new IOException("input key is null");
+    }
+
+  }
+
+  public void reset(T w) {
+    this.v = (Writable) w;
+    this.length = INVALID_LENGTH;
+  }
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/SnappyUtil.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/SnappyUtil.java?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/SnappyUtil.java (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/java/org/apache/hadoop/mapred/nativetask/util/SnappyUtil.java Thu Jul 17 17:44:55 2014
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.hadoop.mapred.nativetask.util;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.CommonConfigurationKeys;
+import org.apache.hadoop.io.compress.SnappyCodec;
+
+public class SnappyUtil {
+  
+  public static boolean isNativeSnappyLoaded(Configuration conf) {
+    return SnappyCodec.isNativeCodeLoaded() && conf.getBoolean(
+      CommonConfigurationKeys.IO_NATIVE_LIB_AVAILABLE_KEY, 
+      CommonConfigurationKeys.IO_NATIVE_LIB_AVAILABLE_DEFAULT);
+  }
+
+}

Added: hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/COPYING
URL: http://svn.apache.org/viewvc/hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/COPYING?rev=1611413&view=auto
==============================================================================
--- hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/COPYING (added)
+++ hadoop/common/branches/MR-2841/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/COPYING Thu Jul 17 17:44:55 2014
@@ -0,0 +1,83 @@
+CityHash
+---------------------------------------------------------------------
+// Copyright (c) 2011 Google, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+GoogleTest
+---------------------------------------------------------------------
+Copyright 2008, Google Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+    * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+LZ4
+---------------------------------------------------------------------
+   LZ4 - Fast LZ compression algorithm
+   Header File
+   Copyright (C) 2011, Yann Collet.
+   BSD License
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+  
+       * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+       * Redistributions in binary form must reproduce the above
+   copyright notice, this list of conditions and the following disclaimer
+   in the documentation and/or other materials provided with the
+   distribution.
+  
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.



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