Github user DT-Priyanka commented on a diff in the pull request:
https://github.com/apache/incubator-apex-malhar/pull/207#discussion_r55799956
--- Diff:
library/src/main/java/com/datatorrent/lib/io/fs/HDFSFileSplitter.java ---
@@ -0,0 +1,184 @@
+/**
+ * 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 com.datatorrent.lib.io.fs;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.validation.constraints.NotNull;
+
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.Path;
+
+import com.datatorrent.api.Context.OperatorContext;
+import com.datatorrent.lib.io.block.BlockMetadata.FileBlockMetadata;
+
+/**
+ * HDFSFileSplitter extends {@link FileSplitterInput} to,
+ * 1. Add relative path to file metadata.
+ * 2. Ignore HDFS temp files (files with extensions _COPYING_).
+ * 3. Set sequencial read option on readers.
+ */
+public class HDFSFileSplitter extends FileSplitterInput
+{
+ private boolean sequencialFileRead;
--- End diff --
It is not HDFS specific, but FileSplitterInput is too generic. If we decide
this is good property for all purpose, I can move it to parent class.
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