com.groiss.util
Class FileUtil

java.lang.Object
  com.groiss.util.FileUtil

public class FileUtil
extends Object

Some convenient file methods.

Constructor Summary

FileUtil()

Method Summary

static void	copyFileOrDirectory(File src, File dest) copies a file or a whole folder to the given destination
static void	copyTo(File src, File dest) Copy a file.
static File	copyToDir(File src, File dir) Copy file to directory
static void	createJarMetaInf(JarOutputStream jarOut, Map<String,String> properties)
static void	deleteDir(File dir) Deletes the passed direcory and all its subdirectories (and so on).
static void	deleteDir(String dirPath) Deletes the direcory with the given path.
static byte[]	getBytesFromStream(InputStream is) Load the content of an InputStream into a byte array.
static String	getContent(File file) Get the content of a file as string.
static String	getContent(String filename)
static File	getFileFromPath(String path) Get a file object from a pathname.
static String	getMimeType(String ext) Return the mime-type from the extension.
static String	getNoComment(InputStream in)
static String	getNoComment(Reader in) Get the contents of an input stream without the comments.
static String	getNoCommentContent(String filename)
static String	getShinyPathMapping(String path) Returns the shiny path for the passed resource path.
static boolean	isTextFile(String pathname) Returns true if the mime-time of this file starts with text
static List<File>	listFiles(String namePattern, File dir) List file with name specified with wildcard in directory and all its subdirectories.
static List<File>	listFiles(String namePattern, File dir, boolean recursive) List file with name specified with wildcard in directory.
static Document	loadApplicationResource(String resource) Load a resource, i.e. a file from the classpath.
static String	loadResource(String resource) Load a resource as string from the classpath.
static String	loadResource(URL url) Load a resource as string from an url.
static byte[]	loadResourceBytes(String resource)
static byte[]	loadResourceBytes(URL url) Load a resource as byte array from the classpath.
static String	loadResourceFromStream(InputStream is) Load a resource from an input stream (file, etc.).
static String	loadResourceFromStream(InputStream is, String charset)
static void	packJarFiles(JarOutputStream jarOut, File dir, String[] types)

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

getMimeType

public static String getMimeType(String ext)

Return the mime-type from the extension. The available mime-types are defined in the file mime.types in the conf directory.

Parameters:

ext - the extension, for example "doc" or "html"

Returns:

the mime-type, for example "text/html"

getShinyPathMapping

public static String getShinyPathMapping(String path)

Returns the shiny path for the passed resource path. If no shiny path is available the passed path is returned.

Parameters:

path - the original path of a resource

Returns:

the path for the shiny version of the resource

loadResource

public static String loadResource(String resource)

Load a resource as string from the classpath. The class loader defined in Settings is used.

Parameters:

resource - a path to a resource

Returns:

the content of the resource

loadResource

public static String loadResource(URL url)

Load a resource as string from an url.

Parameters:

url - the url of the resource

Returns:

the content of the resource

loadResourceFromStream

public static String loadResourceFromStream(InputStream is)
                                     throws IOException

Load a resource from an input stream (file, etc.). We use the default encoding (file.encoding) for mapping bytes to chars.

Parameters:

is - an input stream

Returns:

the content as string

Throws:

IOException

loadResourceFromStream

public static String loadResourceFromStream(InputStream is,
                                            String charset)
                                     throws IOException

Throws:

IOException

loadApplicationResource

public static Document loadApplicationResource(String resource)
                                        throws FileNotFoundException,
                                               JDOMException,
                                               IOException

Load a resource, i.e. a file from the classpath. The system tries to find out the application the resource belongs to and localizes it with this resource. The resource can only be found if it lays in the application directory in a jar file in the lib folder or in the class folder.

Parameters:

resource - a path in the classpath

Returns:

the localized string

Throws:

FileNotFoundException

IOException

JDOMException

loadResourceBytes

public static byte[] loadResourceBytes(URL url)

Load a resource as byte array from the classpath. The class loader defined in Settings is used.

Parameters:

url - the url of a resource

Returns:

the content of the resource

loadResourceBytes

public static byte[] loadResourceBytes(String resource)

getBytesFromStream

public static byte[] getBytesFromStream(InputStream is)

Load the content of an InputStream into a byte array. The stream is closed afterwards.

copyTo

public static void copyTo(File src,
                          File dest)
                   throws FileNotFoundException,
                          IOException

Copy a file.

Parameters:

src - the source file

dest - the destination file

Throws:

FileNotFoundException

IOException

copyToDir

public static File copyToDir(File src,
                             File dir)
                      throws FileNotFoundException,
                             IOException

Copy file to directory

Parameters:

src -

dir -

Throws:

FileNotFoundException

IOException

copyFileOrDirectory

public static void copyFileOrDirectory(File src,
                                       File dest)
                                throws IOException

copies a file or a whole folder to the given destination

Parameters:

src - source location

dest - destination location

Throws:

IOException

getContent

public static String getContent(File file)
                         throws IOException

Get the content of a file as string.

Parameters:

file - the file

Returns:

the content

Throws:

IOException

getNoComment

public static String getNoComment(InputStream in)
                           throws Exception

Throws:

Exception

getNoComment

public static String getNoComment(Reader in)
                           throws Exception

Get the contents of an input stream without the comments. The method filters out the comments starting with "/*" and ending with "*/"

Parameters:

in - the input stream

Returns:

the content

Throws:

Exception

getNoCommentContent

public static String getNoCommentContent(String filename)
                                  throws Exception

Throws:

Exception

getContent

public static String getContent(String filename)
                         throws IOException

Throws:

IOException

deleteDir

public static void deleteDir(String dirPath)

Deletes the direcory with the given path. All subdirectories (and so on) will be also deleted.

Parameters:

dirPath - the directory path

deleteDir

public static void deleteDir(File dir)

Deletes the passed direcory and all its subdirectories (and so on). If the passed parameter is a file and not a directory it will not be deleted

Parameters:

dir - the directory

getFileFromPath

public static File getFileFromPath(String path)

Get a file object from a pathname. If the path is absolute, the method returns the corresponding file. If the path is relative, the moethod returns the path using the base directory from settings as base for the relative path.

Parameters:

path - the path string

Returns:

the file object

listFiles

public static List<File> listFiles(String namePattern,
                                   File dir)

List file with name specified with wildcard in directory and all its subdirectories.

Parameters:

namePattern -

dir -

Returns:

list of found File objects

listFiles

public static List<File> listFiles(String namePattern,
                                   File dir,
                                   boolean recursive)

List file with name specified with wildcard in directory. If parameter recursive is true all its subdirectories are also investigated.

Parameters:

namePattern -

dir -

recursive -

Returns:

list of found File objects

isTextFile

public static boolean isTextFile(String pathname)

Returns true if the mime-time of this file starts with text

createJarMetaInf

public static void createJarMetaInf(JarOutputStream jarOut,
                                    Map<String,String> properties)
                             throws IOException

Throws:

IOException

packJarFiles

public static void packJarFiles(JarOutputStream jarOut,
                                File dir,
                                String[] types)