no.sintef.file
Class IOUtils

java.lang.Object
  no.sintef.file.IOUtils

public final class IOUtils

extends java.lang.Object

IO utility class.

Author:

Fredrik Vraalsen

Method Summary

static java.io.File	getDefaultDir() Get current default directory.
static javax.swing.filechooser.FileFilter[]	mergeFilters(javax.swing.filechooser.FileFilter[] f1, javax.swing.filechooser.FileFilter[] f2) Merge two FileFilter arrays.
static byte[]	readFully(java.io.File file) Read complete File contents into byte array.
static byte[]	readFully(java.io.InputStream is) Read contents of InputStream into byte array.
static byte[]	readFully(java.net.URL url) Read contents of URL into byte array.
static void	saveFile(byte[] bytes, java.io.File file) Save contents of byte array to the specified file.
static void	setDefaultDir(java.io.File dir) Set current default directory.
static java.io.File	showOpenDialog(java.lang.String defaultFilename, javax.swing.filechooser.FileFilter[] filters, java.awt.Component parent) Show file dialog to ask user to select a file to open.
static java.io.File	showSaveDialog(java.lang.String defaultFilename, java.awt.Component parent) Show file dialog requesting user to choose file to save to.

Methods inherited from class java.lang.Object

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

Method Detail

getDefaultDir

public static java.io.File getDefaultDir()

Get current default directory.

Returns:

current default directory

setDefaultDir

public static void setDefaultDir(java.io.File dir)

Set current default directory.

Parameters:

dir - new current default directory.

readFully

public static byte[] readFully(java.io.File file)
                        throws java.io.IOException

Read complete File contents into byte array.

Parameters:

file - File to read from

Returns:

byte array of File contents

Throws:

java.io.IOException - if IO error occurs

readFully

public static byte[] readFully(java.net.URL url)
                        throws java.io.IOException

Read contents of URL into byte array.

Parameters:

url - URL to read from

Returns:

byte array of URL contents

Throws:

java.io.IOException - if IO error occurs

readFully

public static byte[] readFully(java.io.InputStream is)
                        throws java.io.IOException

Read contents of InputStream into byte array.

Parameters:

is - InputStream to read from

Returns:

byte array of InputStream contents

Throws:

java.io.IOException - if IO error occurs

saveFile

public static void saveFile(byte[] bytes,
                            java.io.File file)
                     throws java.io.IOException

Save contents of byte array to the specified file.

Parameters:

bytes - byte array with contents to save

file - file to save to

Throws:

java.io.IOException - if IO error occurs

showSaveDialog

public static java.io.File showSaveDialog(java.lang.String defaultFilename,
                                          java.awt.Component parent)

Show file dialog requesting user to choose file to save to.

Parameters:

defaultFilename - default file name for dialog

parent - parent Component to align the dialog to

Returns:

File to save contents to, or null if cancelled or file not writable

showOpenDialog

public static java.io.File showOpenDialog(java.lang.String defaultFilename,
                                          javax.swing.filechooser.FileFilter[] filters,
                                          java.awt.Component parent)

Show file dialog to ask user to select a file to open.

Parameters:

defaultFilename - default file name for dialog

filters - array of filename filters

parent - parent Component to align the dialog to

Returns:

File to open

mergeFilters

public static javax.swing.filechooser.FileFilter[] mergeFilters(javax.swing.filechooser.FileFilter[] f1,
                                                                javax.swing.filechooser.FileFilter[] f2)

Merge two FileFilter arrays.

Parameters:

f1 - the first FileFilter array

f2 - the second FileFilter array

Returns:

the merged FileFilters