parquet-hadoop/src/main/java/org/apache/parquet/hadoop/api/ReadSupport.java
public ReadContext init(InitContext context) {
    return init(context.getConfiguration(), context.getMergedKeyValueMetaData(), context.getFileSchema());
  }
public ReadContext init(InitContext context) {
    return init(context.getConfiguration(), context.getMergedKeyValueMetaData(), context.getFileSchema());
  }
public ReadContext init ( InitContext context ) { return init ( context . getConfiguration ( ) , context . getMergedKeyValueMetaData ( ) , context . getFileSchema ( ) ) ; }
called in {@link org.apache.hadoop.mapreduce.InputFormat#getSplits(org.apache.hadoop.mapreduce.JobContext)} in the front end

@param context the initialisation context
@return the readContext that defines how to read the file
called in { @link org . apache . hadoop . mapreduce . InputFormat#getSplits ( org . apache . hadoop . mapreduce . JobContext ) } in the front end