Package org.jline.nativ

Class JLineNativeLoader

java.lang.Object

org.jline.nativ.JLineNativeLoader

public class JLineNativeLoader
extends Object

Set the system properties, library.jline.path, library.jline.name, appropriately so that jline can find *.dll, *.jnilib and *.so files, according to the current OS (win, linux, mac).

The library files are automatically extracted from this project's package (JAR).

usage: call initialize() before using jline.

Field Summary

Fields

Modifier and Type	Field	Description
private static boolean	loaded
private static String	nativeLibraryPath
private static String	nativeLibrarySourceUrl

Constructor Summary

Constructors

Constructor	Description
JLineNativeLoader()

Method Summary

Modifier and Type	Method	Description
(package private) static void	cleanup()	Deleted old native libraries e.g.
private static String	contentsEquals(InputStream in1, InputStream in2)
private static void	copy(InputStream in, OutputStream out)
private static boolean	extractAndLoadLibraryFile(String libFolderForCurrentOS, String libraryFileName, String targetFolder)	Extracts and loads the specified library file to the target folder
static int	getMajorVersion()
static int	getMinorVersion()
static String	getNativeLibraryPath()
static String	getNativeLibrarySourceUrl()
private static File	getTempDir()
static String	getVersion()
private static boolean	hasResource(String path)
static boolean	initialize()	Loads jline native library.
private static String	join(List<String> list, String separator)
private static void	loadJLineNativeLibrary()	Loads jline library using given path and name of the library.
private static boolean	loadNativeLibrary(File libPath)	Loads native library using the given path and name of the library.
private static String	randomUUID()
private static int	readNBytes(InputStream in, byte[] b)

Methods inherited from class java.lang.Object

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

Field Details

loaded

private static boolean loaded

nativeLibraryPath

private static String nativeLibraryPath

nativeLibrarySourceUrl

private static String nativeLibrarySourceUrl

Constructor Details

JLineNativeLoader

public JLineNativeLoader()

Method Details

initialize

public static boolean initialize()

Loads jline native library.

Returns:

True if jline native library is successfully loaded; false otherwise.

getNativeLibraryPath

public static String getNativeLibraryPath()

getNativeLibrarySourceUrl

public static String getNativeLibrarySourceUrl()

getTempDir

private static File getTempDir()

cleanup

static void cleanup()

Deleted old native libraries e.g. on Windows the DLL file is not removed on VM-Exit (bug #80)

readNBytes

private static int readNBytes(InputStream in,
 byte[] b)
                       throws IOException

Throws:

IOException

contentsEquals

private static String contentsEquals(InputStream in1,
 InputStream in2)
                              throws IOException

Throws:

IOException

extractAndLoadLibraryFile

private static boolean extractAndLoadLibraryFile(String libFolderForCurrentOS,
 String libraryFileName,
 String targetFolder)

Extracts and loads the specified library file to the target folder

Parameters:

libFolderForCurrentOS - Library path.

libraryFileName - Library name.

targetFolder - Target folder.

Returns:

randomUUID

private static String randomUUID()

copy

private static void copy(InputStream in,
 OutputStream out)
                  throws IOException

Throws:

IOException

loadNativeLibrary

private static boolean loadNativeLibrary(File libPath)

Loads native library using the given path and name of the library.

Parameters:

libPath - Path of the native library.

Returns:

True for successfully loading; false otherwise.

loadJLineNativeLibrary

private static void loadJLineNativeLibrary()
                                    throws Exception

Loads jline library using given path and name of the library.

Throws:

Exception

hasResource

private static boolean hasResource(String path)

getMajorVersion

public static int getMajorVersion()

Returns:

The major version of the jline library.

getMinorVersion

public static int getMinorVersion()

Returns:

The minor version of the jline library.

getVersion

public static String getVersion()

Returns:

The version of the jline library.

join

private static String join(List<String> list,
 String separator)