org.ow2.jonas.launcher.felix.util
Class IOUtils

java.lang.Object
  org.ow2.jonas.launcher.felix.util.IOUtils

public final class IOUtils
extends Object

IO utilities.

Author:

Guillaume Sauthier

Method Summary

static boolean	deleteDir(File dir) Recursively delete a directory.
static boolean	exists(String filename) Checks if the file exists.
static Properties	getPropertiesFromClass(String resource, Class<?> clazz)
static Properties	getPropertiesFromFile(File filename)
static File	getSystemFile(File base, String relative) Return a OS valid File.
static String	getSystemPath(File base, String relative) Return a OS valid path.
static Properties	loadPropertiesFromStream(InputStream is) Create a Properties from the given InputStream.

Methods inherited from class java.lang.Object

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

Method Detail

deleteDir

public static boolean deleteDir(File dir)

Recursively delete a directory.

Parameters:

dir - directory to be deleted

Returns:

true if everything went smoothly.

getSystemPath

public static String getSystemPath(File base,
                                   String relative)

Return a OS valid path.

Parameters:

base - basis directory

relative - relative path name to the basis directory

Returns:

the OS dependent path name

getSystemFile

public static File getSystemFile(File base,
                                 String relative)

Return a OS valid File.

Parameters:

base - basis directory

relative - relative path name to the basis directory

Returns:

the OS dependent File

exists

public static boolean exists(String filename)

Checks if the file exists.

Parameters:

filename - File name to be tested

Returns:

true if the given file exists.

getPropertiesFromFile

public static Properties getPropertiesFromFile(File filename)
                                        throws IOException

Parameters:

filename - properties file name

Returns:

the content of the resource as a Properties instance.

Throws:

IOException - if file is not found or if file is not a property file.

loadPropertiesFromStream

public static Properties loadPropertiesFromStream(InputStream is)
                                           throws IOException

Create a Properties from the given InputStream. Close the stream at the end of the operation.

Parameters:

is - InputStream

Returns:

Throws:

IOException - if the stream cannot be read or if it doesn't contains a Properties

getPropertiesFromClass

public static Properties getPropertiesFromClass(String resource,
                                                Class<?> clazz)
                                         throws IOException

Parameters:

resource - properties file name (relative to org/ow2/jonas/launcher/felix)

Returns:

the content of the resource as a Properties instance.

Throws:

IOException - if file is not found or if file is not a property file.