ca.weblite.nativeutils
Class NativeUtils

java.lang.Object
  ca.weblite.nativeutils.NativeUtils

public class NativeUtils
extends Object

Simple library class for working with JNI (Java Native Interface)

Author:

Adam Heirnich , http://www.adamh.cz

See Also:

http://frommyplayground.com/how-to-load-native-jni-library-from-jar

Method Summary

static File	loadFileFromJar(String path, Class source)
static void	loadLibraryFromJar(String path)
static void	loadLibraryFromJar(String path, Class source) Loads library from current JAR archive The file from JAR is copied into system temporary directory and then loaded.

Methods inherited from class java.lang.Object

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

Method Detail

loadLibraryFromJar

public static void loadLibraryFromJar(String path)
                               throws IOException

Throws:

IOException

loadLibraryFromJar

public static void loadLibraryFromJar(String path,
                                      Class source)
                               throws IOException

Loads library from current JAR archive The file from JAR is copied into system temporary directory and then loaded. The temporary file is deleted after exiting. Method uses String as filename because the pathname is "abstract", not system-dependent.

Parameters:

filename - The filename inside JAR as absolute path (beginning with '/'), e.g. /package/File.ext

Throws:

IOException - If temporary file creation or read/write operation fails

IllegalArgumentException - If source file (param path) does not exist

IllegalArgumentException - If the path is not absolute or if the filename is shorter than three characters (restriction of File.createTempFile(java.lang.String, java.lang.String)).

loadFileFromJar

public static File loadFileFromJar(String path,
                                   Class source)
                            throws IOException

Throws:

IOException