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ptolemy.copernicus.c
Class FileHandler

java.lang.Object
 extended byptolemy.copernicus.c.FileHandler

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public class FileHandler

extends java.lang.Object

A class that takes care of common File I/O functions.

Since:

Ptolemy II 2.0

Version:

$Id: FileHandler.java,v 1.31 2006年10月24日 23:50:27 cxh Exp $

Author:

Ankush Varma

Accepted Rating:

Red (ankush)

Proposed Rating:

Red (ankush)

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Constructor Summary

FileHandler()

Method Summary
static boolean	exists(java.lang.String fileName) Tells whether a file or directory with a given name exists.
static java.lang.Object	readObject(java.lang.String fileName) Reads an object from a specified file.
static java.lang.String	readStringFromFile(java.lang.String fileName) Reads the contents of a text file and returns them as a String.
static void	write(java.lang.String fileName, java.lang.Object object) Write out the given Object to a file.
static void	write(java.lang.String fileName, java.lang.String code) Write out the given string to a file.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileHandler

public FileHandler()

Method Detail

exists

public static boolean exists(java.lang.String fileName)

Tells whether a file or directory with a given name exists.

Parameters:

fileName - A fileName.

Returns:

True if a file or directory with that name exists.

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readObject

public static java.lang.Object readObject(java.lang.String fileName)

Reads an object from a specified file.

Parameters:

fileName - The file to read.

Returns:

The object in this file.

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readStringFromFile

public static java.lang.String readStringFromFile(java.lang.String fileName)

Reads the contents of a text file and returns them as a String. Prints an error statement and returns an empty string if an IO error occurs.

Parameters:

fileName - The file to read from.

Returns:

A String containing the entire contents of the file.

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write

public static void write(java.lang.String fileName,
 java.lang.String code)

Write out the given string to a file.

Parameters:

fileName - The file to write to.

code - The String to write.

Throws:

java.lang.RuntimeException - If it fails to write.

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write

public static void write(java.lang.String fileName,
 java.lang.Object object)

Write out the given Object to a file.

Parameters:

fileName - The file to write to.

object - The object to write.

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