Package org.moeaframework.analysis.io

Class MetricFileReader

java.lang.Object

org.moeaframework.analysis.io.MatrixReader

org.moeaframework.analysis.io.MetricFileReader

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<double[]>, Iterator<double[]>

public class MetricFileReader
extends MatrixReader

Reader for metric files produced by MetricFileWriter. The file can contain commented lines starting with '#' characters.

This reader is expected to gracefully recover from incomplete or improperly formatted files. Unless a serious I/O error occurred, this reader will attempt to load the file to the last valid entry. This requirement enables a MetricFileWriter to resume processing at a valid state.

See Also:

• MetricFileWriter

Constructor Summary

Constructors

Constructor	Description
MetricFileReader(File file)	Constructs a metric file reader for reading metric files from the specified file.
MetricFileReader(Reader reader)	Constructs a metric file reader for reading metric files from the underlying reader.

Method Summary

Modifier and Type	Method	Description
static MetricFileReader	open(File file)	Opens a metric file for reading.

Methods inherited from class org.moeaframework.analysis.io.MatrixReader

close, hasNext, iterator, load, next, readAll, remove

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Details

MetricFileReader

public MetricFileReader(File file)
                 throws FileNotFoundException

Constructs a metric file reader for reading metric files from the specified file.

Parameters:

file - the metric file

Throws:

FileNotFoundException - if the file was not found

MetricFileReader

public MetricFileReader(Reader reader)

Constructs a metric file reader for reading metric files from the underlying reader.

Parameters:

reader - the underlying reader

Method Details

open

public static MetricFileReader open(File file)
                             throws FileNotFoundException

Opens a metric file for reading.

Parameters:

file - the metric file

Returns:

the reader

Throws:

FileNotFoundException - if the file was not found