upidiff.input
Class FileInputSource

java.lang.Object
  |
  +--upidiff.input.FileInputSource

All Implemented Interfaces:

InputSource

public final class FileInputSource

extends Object

implements InputSource

A generic interface to data sources in a systems filesystem.

Author:

bmeurer, kasbar

Field Summary

private File	file The input file.
private BufferedReader	reader Buffered reader object connected with the input file.

Constructor Summary

FileInputSource(File file)
Creates a new data source associated with a local file.

Method Summary

String	name() Returns the absolute path of the input file.
String	readLine() Reads one line from the input file.
String	url() Returns the URL for this input file.

Methods inherited from class java.lang.Object

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

Field Detail

reader

private BufferedReader reader

Buffered reader object connected with the input file.

file

private File file

The input file.

Constructor Detail

FileInputSource

public FileInputSource(File file)
                throws InputException

Creates a new data source associated with a local file.

Parameters:

file - Input file.

Throws:

InputException - The file could not be opened for reading.

Method Detail

name

public String name()

Returns the absolute path of the input file.

Specified by:

name in interface InputSource

Returns:

The absolute path for the input file.

url

public String url()

Returns the URL for this input file.

Specified by:

url in interface InputSource

Returns:

The URL for this inpue file.

readLine

public String readLine()
                throws InputException

Reads one line from the input file.

Specified by:

readLine in interface InputSource

Returns:

The line read or null at end of file.

Throws:

InputException - The process fails to read from the file.