de.julielab.java.utilities

Class FileUtilities

java.lang.Object

de.julielab.java.utilities.FileUtilities

public class FileUtilities
extends Object

This class is a collection of useful file-related static methods. Refer to the JavaDoc of the methods for more details.

Author:

faessler

Constructor Summary

Constructors

Constructor and Description
FileUtilities()

Method Summary

Modifier and Type	Method and Description
static BufferedInputStream	getInputStreamFromFile(File file) Returns an InputStream for file.
static BufferedOutputStream	getOutputStreamToFile(File file) Returns an OutputStream for file.
static BufferedReader	getReaderFromFile(File file) Returns a reader from the file file where the file may be a regular file or gzipped.
static BufferedWriter	getWriterToFile(File file) Returns a writer to the file file where the destination file may will be gzipped if file has the extension .gz or .gzip.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileUtilities

public FileUtilities()

Method Detail

getInputStreamFromFile

public static BufferedInputStream getInputStreamFromFile(File file)
                                                  throws IOException

Returns an InputStream for file. Automatically wraps in an BufferedInputStream and also in an GZIPInputStream if the file name ends with .gz or .gzip.

Parameters:

file - The file to read.

Returns:

A buffered input stream.

Throws:

IOException - If there is an error during reading.

getOutputStreamToFile

public static BufferedOutputStream getOutputStreamToFile(File file)
                                                  throws IOException

Returns an OutputStream for file. Automatically wraps in an BufferedOutputStream and also in an GZIPOutputStream if the file name ends with .gz or .gzip.

Parameters:

file - The file to write.

Returns:

A buffered output stream.

Throws:

IOException - If there is an error during stream creation.

getReaderFromFile

public static BufferedReader getReaderFromFile(File file)
                                        throws IOException

Returns a reader from the file file where the file may be a regular file or gzipped. The gzip format is recognized by the file extensions .gz or .gzip.

Parameters:

file - The file to read.

Returns:

A reader for file.

Throws:

IOException - If opening the file fails.

getWriterToFile

public static BufferedWriter getWriterToFile(File file)
                                      throws IOException

Returns a writer to the file file where the destination file may will be gzipped if file has the extension .gz or .gzip.

Parameters:

file - The file to write.

Returns:

A writer for file.

Throws:

IOException - If opening the file fails.