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

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

public final class IOUtils
extends java.lang.Object

IO utilities.

Author:

Guillaume Sauthier

Method Summary

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

Recursively delete a directory.

Parameters:

dir - directory to be deleted

Returns:

true if everything went smoothly.

getSystemPath

public static java.lang.String getSystemPath(java.io.File base,
                                             java.lang.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 java.io.File getSystemFile(java.io.File base,
                                         java.lang.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(java.lang.String filename)

Checks if the file exists.

Parameters:

filename - File name to be tested

Returns:

true if the given file exists.

getPropertiesFromFile

public static java.util.Properties getPropertiesFromFile(java.io.File filename)
                                                  throws java.io.IOException

Parameters:

filename - properties file name

Returns:

the content of the resource as a Properties instance.

Throws:

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

loadPropertiesFromStream

public static java.util.Properties loadPropertiesFromStream(java.io.InputStream is)
                                                     throws java.io.IOException

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

Parameters:

is - InputStream

Returns:

Throws:

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

getPropertiesFromClass

public static java.util.Properties getPropertiesFromClass(java.lang.String resource,
                                                          java.lang.Class<?> clazz)
                                                   throws java.io.IOException

Parameters:

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

Returns:

the content of the resource as a Properties instance.

Throws:

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