示例#1
0
 @SuppressWarnings("unchecked")
 public DelegatingRecordReader(InputSplit split, TaskAttemptContext context)
     throws IOException, InterruptedException {
   // Find the InputFormat and then the RecordReader from the TaggedInputSplit.
   TaggedInputSplit taggedInputSplit = (TaggedInputSplit) split;
   InputFormat<K, V> inputFormat =
       (InputFormat<K, V>)
           ReflectionUtils.newInstance(
               taggedInputSplit.getInputFormatClass(), context.getConfiguration());
   originalRR = inputFormat.createRecordReader(taggedInputSplit.getInputSplit(), context);
 }