Github user rmetzger commented on a diff in the pull request:
https://github.com/apache/incubator-flink/pull/32#discussion_r14036891
--- Diff:
stratosphere-addons/hadoop-compatibility/src/main/java/eu/stratosphere/hadoopcompatibility/mapred/HadoopInputFormat.java
---
@@ -0,0 +1,287 @@
+/***********************************************************************************************************************
+ * Copyright (C) 2010-2013 by the Stratosphere project
(http://stratosphere.eu)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
express or implied. See the License for the
+ * specific language governing permissions and limitations under the
License.
+
**********************************************************************************************************************/
+
+package eu.stratosphere.hadoopcompatibility.mapred;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.io.Writable;
+import org.apache.hadoop.mapred.FileInputFormat;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapred.RecordReader;
+import org.apache.hadoop.util.ReflectionUtils;
+
+import eu.stratosphere.api.common.io.FileInputFormat.FileBaseStatistics;
+import eu.stratosphere.api.common.io.InputFormat;
+import eu.stratosphere.api.common.io.statistics.BaseStatistics;
+import eu.stratosphere.api.java.tuple.Tuple2;
+import eu.stratosphere.api.java.typeutils.ResultTypeQueryable;
+import eu.stratosphere.api.java.typeutils.TupleTypeInfo;
+import eu.stratosphere.api.java.typeutils.WritableTypeInfo;
+import eu.stratosphere.configuration.Configuration;
+import eu.stratosphere.core.fs.FileStatus;
+import eu.stratosphere.core.fs.FileSystem;
+import eu.stratosphere.core.fs.Path;
+import eu.stratosphere.hadoopcompatibility.mapred.utils.HadoopUtils;
+import
eu.stratosphere.hadoopcompatibility.mapred.wrapper.HadoopDummyReporter;
+import eu.stratosphere.hadoopcompatibility.mapred.wrapper.HadoopInputSplit;
+import eu.stratosphere.types.TypeInformation;
+
+public class HadoopInputFormat<K extends Writable, V extends Writable>
implements InputFormat<Tuple2<K,V>, HadoopInputSplit>,
ResultTypeQueryable<Tuple2<K,V>> {
+
+ private static final long serialVersionUID = 1L;
+
+ private static final Log LOG =
LogFactory.getLog(HadoopInputFormat.class);
+
+ private org.apache.hadoop.mapred.InputFormat<K, V> mapredInputFormat;
+ private Class<K> keyClass;
+ private Class<V> valueClass;
+ private JobConf jobConf;
+
+ public transient K key;
+ public transient V value;
+
+ public RecordReader<K, V> recordReader;
--- End diff --
we should mark the `recordReader` as transient as well. Even though we do
custom serialization, it is helpful as a flag when reading the code (similar to
key and value, the transient flag has actually no meaning here, since we do
custom ser)
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