com.fgm.javaUtils

Class FileUtils

java.lang.Object

com.fgm.javaUtils.FileUtils

public class FileUtils
extends java.lang.Object

support utility for file operation / manipulation.

Author:

dongshin

Constructor Summary

Constructors

Constructor and Description
FileUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	downloadFile(java.lang.String urlString, java.lang.String fileString) read a remote file into a file.
static java.lang.String	getInputFileName(java.lang.String currentDirectoryPath) Create a file dialog and return the full name of the file selected.
static java.lang.String	getInputFileName(java.lang.String currentDirectoryPath, java.lang.String dialogTitle, javax.swing.filechooser.FileFilter filter) Create a file dialog and return the full name of the file selected.
static java.lang.String	getOutputFileName(java.lang.String titleString, java.lang.String currentDirectoryPath, javax.swing.filechooser.FileNameExtensionFilter filter) Gets the output file name.
static void	main(java.lang.String[] args) The main method.
static java.io.BufferedReader	openFile(java.lang.String filename) Open a file based on the filename and return a BufferedReader pointing at the head of the file.
private static boolean	printStatus(boolean status, java.lang.String str) print str if status is false?.
static java.io.BufferedReader	readfileDialog(java.lang.String currentDirectoryPath) Launch a file browsing dialog and return a BufferedReader pointing at the head of the selected file.
static org.dom4j.Document	readXML(java.lang.String fileStr) read a XML file.
static java.lang.String	testRead(java.io.BufferedReader fileReader) read data from file and returns a string containing the contents.
static boolean	unzipFile(java.lang.String fileName, java.lang.String dirStr) unzip a file to the directory dirStr.
static void	writeXML(java.lang.String fileName, org.dom4j.Document document) write XML to a file.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileUtils

public FileUtils()

Method Detail

getInputFileName

public static java.lang.String getInputFileName(java.lang.String currentDirectoryPath)

Create a file dialog and return the full name of the file selected.

Parameters:

currentDirectoryPath - the current directory path

Returns:

the input file name

getOutputFileName

public static java.lang.String getOutputFileName(java.lang.String titleString,
                                 java.lang.String currentDirectoryPath,
                                 javax.swing.filechooser.FileNameExtensionFilter filter)

Gets the output file name.

Parameters:

titleString - the title string

currentDirectoryPath - the current directory path

filter - the filter (i.e. .xls)

Returns:

the output file name in a fully qualified path if successful, or null if cancelled

getInputFileName

public static java.lang.String getInputFileName(java.lang.String currentDirectoryPath,
                                java.lang.String dialogTitle,
                                javax.swing.filechooser.FileFilter filter)

Create a file dialog and return the full name of the file selected.

Parameters:

currentDirectoryPath - the current directory path

dialogTitle - the dialog title

filter - the filter (i.e. .xls)

Returns:

the input file name in a fully qualified path if successful, or null if cancelled

openFile

public static java.io.BufferedReader openFile(java.lang.String filename)
                                       throws java.io.FileNotFoundException

Open a file based on the filename and return a BufferedReader pointing at the head of the file.

Parameters:

filename - the filename

Returns:

the BufferedReader

Throws:

java.io.FileNotFoundException

readfileDialog

public static java.io.BufferedReader readfileDialog(java.lang.String currentDirectoryPath)
                                             throws java.io.FileNotFoundException

Launch a file browsing dialog and return a BufferedReader pointing at the head of the selected file.

Parameters:

currentDirectoryPath - the current directory path

Returns:

the BufferedReader

Throws:

java.io.FileNotFoundException

readXML

public static org.dom4j.Document readXML(java.lang.String fileStr)
                                  throws org.dom4j.DocumentException

read a XML file.

Parameters:

fileStr - the XML string to read

Returns:

a dom4j Document

Throws:

org.dom4j.DocumentException

writeXML

public static void writeXML(java.lang.String fileName,
            org.dom4j.Document document)
                     throws java.io.IOException

write XML to a file.

Parameters:

fileName - the file name

document - the dom4j Document to write out

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

testRead

public static java.lang.String testRead(java.io.BufferedReader fileReader)

read data from file and returns a string containing the contents.

Parameters:

fileReader - the BufferedReader pointing to the file

Returns:

the string containing the contents.

downloadFile

public static boolean downloadFile(java.lang.String urlString,
                   java.lang.String fileString)

read a remote file into a file.

Parameters:

urlString - the url string

fileString - the file string to save to.

Returns:

true, if successful

printStatus

private static boolean printStatus(boolean status,
                  java.lang.String str)

print str if status is false?.

Parameters:

status - the status

str - the str

Returns:

true, if successful

unzipFile

public static boolean unzipFile(java.lang.String fileName,
                java.lang.String dirStr)

unzip a file to the directory dirStr.

Parameters:

fileName - the zipped file name

dirStr - the name of the destination directory

Returns:

true if successful, false on failure (any Exception)

main

public static void main(java.lang.String[] args)

The main method. For debugging only

Parameters:

args - the arguments