org.wso2.carbon.server.util

Class FileUtils

java.lang.Object

org.wso2.carbon.server.util.FileUtils

public class FileUtils
extends Object

taken from the commons file utils class. we didnt want to use the library. hence copied the source

Constructor Summary

Constructors

Constructor and Description
FileUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	closeQuietly(InputStream input) Unconditionally close an InputStream.
static void	closeQuietly(OutputStream output) Unconditionally close an OutputStream.
static int	copy(InputStream input, OutputStream output) Copy bytes from an InputStream to an OutputStream.
static void	copyDirectory(File srcDir, File destDir) Copies a whole directory to a new location preserving the file dates.
static void	copyDirectory(File srcDir, File destDir, boolean preserveFileDate) Copies a whole directory to a new location.
static void	copyFile(File srcFile, File destFile, boolean preserveFileDate) Copy file method.
static boolean	deleteDir(File dir) Deletes all files and subdirectories under dir.
static File	getFile(File parentFile, String fileName)
static Map<String,String>	readJarsWithMD5(BufferedReader bufferedReader)
static List<String>	readLinesToList(BufferedReader bufferedReader)

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

copyDirectory

public static void copyDirectory(File srcDir,
                 File destDir)
                          throws IOException

Copies a whole directory to a new location preserving the file dates.

This method copies the specified directory and all its child directories and files to the specified destination. The destination is the new location and name of the directory.

The destination directory is created if it does not exist. If the destination directory did exist, then this method merges the source with the destination, with the source taking precedence.

Parameters:

srcDir - an existing directory to copy, must not be null

destDir - the new directory, must not be null

Throws:

NullPointerException - if source or destination is null

IOException - if source or destination is invalid

Since:

Commons IO 1.1

copyDirectory

public static void copyDirectory(File srcDir,
                 File destDir,
                 boolean preserveFileDate)
                          throws IOException

Copies a whole directory to a new location.

This method copies the contents of the specified source directory to within the specified destination directory.

The destination directory is created if it does not exist. If the destination directory did exist, then this method merges the source with the destination, with the source taking precedence.

Parameters:

srcDir - an existing directory to copy, must not be null

destDir - the new directory, must not be null

preserveFileDate - true if the file date of the copy should be the same as the original

Throws:

NullPointerException - if source or destination is null

IOException - if source or destination is invalid

Since:

Commons IO 1.1

copyFile

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

Copy file method.

Parameters:

srcFile - the validated source file, not null

destFile - the validated destination file, not null

preserveFileDate - whether to preserve the file date

Throws:

IOException - if an error occurs

closeQuietly

public static void closeQuietly(OutputStream output)

Unconditionally close an OutputStream.

Equivalent to OutputStream.close(), except any exceptions will be ignored. This is typically used in finally blocks.

Parameters:

output - the OutputStream to close, may be null or already closed

closeQuietly

public static void closeQuietly(InputStream input)

Unconditionally close an InputStream.

Equivalent to InputStream.close(), except any exceptions will be ignored. This is typically used in finally blocks.

Parameters:

input - the InputStream to close, may be null or already closed

copy

public static int copy(InputStream input,
       OutputStream output)
                throws IOException

Copy bytes from an InputStream to an OutputStream.

This method buffers the input internally, so there is no need to use a BufferedInputStream.

Parameters:

input - the InputStream to read from

output - the OutputStream to write to

Returns:

the number of bytes copied

Throws:

NullPointerException - if the input or output is null

IOException - if an I/O error occurs

Since:

Commons IO 1.1

deleteDir

public static boolean deleteDir(File dir)

Deletes all files and subdirectories under dir. Returns true if all deletions were successful. If a deletion fails, the method stops attempting to delete and returns false.

Parameters:

dir - The directory to be deleted

Returns:

true if the directory and its descendents were deleted

getFile

public static File getFile(File parentFile,
           String fileName)

readLinesToList

public static List<String> readLinesToList(BufferedReader bufferedReader)
                                    throws IOException

Throws:

IOException

readJarsWithMD5

public static Map<String,String> readJarsWithMD5(BufferedReader bufferedReader)
                                          throws IOException

Throws:

IOException