org.zeroturnaround.javarebel.integration.util

Class FileUtil

java.lang.Object

org.zeroturnaround.javarebel.integration.util.FileUtil

public class FileUtil
extends Object

Helper methods for managing operations with the file system..

Author:

Rein Raudjärv

Constructor Summary

Constructors

Constructor and Description
FileUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	canWriteToDir(File dir)
static void	copyAndClose(InputStream in, File outputFile) Copies the given stream to a file.
static void	copyFile(File srcFile, File destFile) Copies the given file to a new location.
static boolean	copyIfChanged(URL in, File outputFile)
static void	forceDelete(File file) Deletes the given file or directory.
static String	getExtension(File file) Returns the extension of a given file or null if the file has no extension.
static Collection<File>	getUniqueParentDirs(Collection<File> files)

Methods inherited from class java.lang.Object

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

Constructor Detail

FileUtil

public FileUtil()

Method Detail

copyFile

public static void copyFile(File srcFile,
                            File destFile)
                     throws IOException

Copies the given file to a new location.

If the destination file already exists it will be overwritten.

Parameters:

srcFile - source file (not null, must exist).

destFile - destination file (not null, parent directory must exist).

Throws:

IOException

copyIfChanged

public static boolean copyIfChanged(URL in,
                                    File outputFile)
                             throws IOException

Throws:

IOException

copyAndClose

public static void copyAndClose(InputStream in,
                                File outputFile)
                         throws IOException

Copies the given stream to a file.

If the destination file already exists it will be overwritten.

Parameters:

in - source stream (not null).

outputFile - destination file (not null, parent directory must exist).

Throws:

IOException

forceDelete

public static void forceDelete(File file)
                        throws IOException

Deletes the given file or directory. Throws an IOException in case of any error.

Throws:

IOException

getExtension

public static String getExtension(File file)

Returns the extension of a given file or null if the file has no extension.

Parameters:

file - input file (not null).

canWriteToDir

public static boolean canWriteToDir(File dir)

getUniqueParentDirs

public static Collection<File> getUniqueParentDirs(Collection<File> files)

Parameters:

files - Collection of files

Returns:

files containing only parent directories. For example if there are [C:\weblogic\x\y, C:\weblogic\, C:\tomcat], then result is [C:\weblogic\, C:\tomcat], because C:\weblogic\x\y is a subdirectory of C:\weblogic