net.sourceforge.jaulp.file.read
Class ReadFileUtils

java.lang.Object
  net.sourceforge.jaulp.file.read.ReadFileUtils

public class ReadFileUtils
extends java.lang.Object

The Class ReadFileUtils helps you reading files.

Version:

1.0

Author:

Asterios Raptis

Constructor Summary

ReadFileUtils()

Method Summary

static byte[]	getFilecontentAsByteArray(java.io.File tmpFile) Get a byte array from the given file.
static java.io.InputStream	getInputStream(java.io.File file) Gets the input stream from a File object.
static java.io.InputStream	getInputStream(java.io.File file, boolean createFile) Gets the input stream from a File object.
static java.io.Reader	getReader(java.io.File inputFile) Gets a Reader from the given file object.
static java.io.Reader	getReader(java.io.File inputFile, java.lang.String encoding, boolean createFile) Gets a Reader from the given file object.
static java.lang.String	inputStream2String(java.io.InputStream inputStream) The Method inputStream2String() reads the data from the InputStream into a String.
static java.io.Reader	openFileReader(java.lang.String fileName) The Method openFileReader() opens a BufferedReader from the given file.
static java.lang.String	reader2String(java.io.Reader reader) The Method reader2String() reads the data from the Reader into a String.
static byte[]	readFileToBytearray(java.io.File file) Get a byte array from the given file.
static java.lang.String	readFromFile(java.io.File file) The Method readFromFile() reads the filecontent to a String.
static java.lang.String	readHeadLine(java.lang.String inputFile) The Method readHeadLine() opens the File and reads the first line from the file.
static java.util.List<java.lang.String>	readLinesInList(java.io.File input) Reads every line from the File and puts them to the List.
static java.util.Properties	readPropertiesFromFile(java.lang.String filename) The Method readFromFile(String) reads from the properties-file all Properties and saves them into a Properties-Object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadFileUtils

public ReadFileUtils()

Method Detail

getFilecontentAsByteArray

public static byte[] getFilecontentAsByteArray(java.io.File tmpFile)

Get a byte array from the given file.

Parameters:

tmpFile - The file.

Returns:

Returns a byte array or null.

getInputStream

public static java.io.InputStream getInputStream(java.io.File file)
                                          throws java.io.IOException

Gets the input stream from a File object.

Parameters:

file - the file.

Returns:

the input stream.

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

getInputStream

public static java.io.InputStream getInputStream(java.io.File file,
                                                 boolean createFile)
                                          throws java.io.IOException

Gets the input stream from a File object.

Parameters:

file - the file

createFile - If true and the file does not exist it will be create a new file.

Returns:

the input stream

Throws:

FileDoesNotExistException - the file does not exist exception

java.io.IOException - Signals that an I/O exception has occurred.

getReader

public static java.io.Reader getReader(java.io.File inputFile)
                                throws java.io.IOException

Gets a Reader from the given file object.

Parameters:

inputFile - the input file.

Returns:

the reader.

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

getReader

public static java.io.Reader getReader(java.io.File inputFile,
                                       java.lang.String encoding,
                                       boolean createFile)
                                throws java.io.IOException

Gets a Reader from the given file object.

Parameters:

inputFile - the input file

encoding - The encoding from the file.

createFile - If true and the file does not exist it will be create a new file.

Returns:

the reader

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

inputStream2String

public static java.lang.String inputStream2String(java.io.InputStream inputStream)

The Method inputStream2String() reads the data from the InputStream into a String.

Parameters:

inputStream - The InputStream from where we read.

Returns:

The String that we read from the InputStream.

openFileReader

public static java.io.Reader openFileReader(java.lang.String fileName)
                                     throws java.io.IOException

The Method openFileReader() opens a BufferedReader from the given file.

Parameters:

fileName - The file from where to read.

Returns:

The opened BufferedReader from the specified file.

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

reader2String

public static java.lang.String reader2String(java.io.Reader reader)

The Method reader2String() reads the data from the Reader into a String.

Parameters:

reader - The Reader from where we read.

Returns:

The String that we read from the Reader.

readFileToBytearray

public static byte[] readFileToBytearray(java.io.File file)

Get a byte array from the given file.

Parameters:

file - The file.

Returns:

Returns a byte array or null.

readFromFile

public static java.lang.String readFromFile(java.io.File file)

The Method readFromFile() reads the filecontent to a String.

Parameters:

file - The File to read to a String.

Returns:

The String from the File.

readHeadLine

public static java.lang.String readHeadLine(java.lang.String inputFile)

The Method readHeadLine() opens the File and reads the first line from the file.

Parameters:

inputFile - The Path to the File and name from the file from where we read.

Returns:

The first line from the file.

readLinesInList

public static java.util.List<java.lang.String> readLinesInList(java.io.File input)
                                                        throws java.io.IOException

Reads every line from the File and puts them to the List.

Parameters:

input - The File from where the input comes.

Returns:

The List with all lines from the file.

Throws:

java.io.IOException - When a io-problem occurs.

readPropertiesFromFile

public static java.util.Properties readPropertiesFromFile(java.lang.String filename)

The Method readFromFile(String) reads from the properties-file all Properties and saves them into a Properties-Object.

Parameters:

filename - The Filename from the Properties-file.

Returns:

The Properties or null if an error occurs.