~ubuntu-branches/ubuntu/oneiric/tuxguitar/oneiric

package org.herac.tuxguitar.player.impl.midiport.oss;

 

import java.io.File;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.io.OutputStream;

 

import org.herac.tuxguitar.util.TGClassLoader;

 

public class JNILibraryLoader {

        

        private static final String JNI_EXTENSION = ".jnilib";

        

        private static final String JNI_TMP_PATH = (System.getProperty( "java.io.tmpdir" ) + File.separator);

        

        public static void loadLibrary(String libname){

                if(!JNILibraryLoader.loadFromClassPath(libname + JNI_EXTENSION)){

                        System.loadLibrary(libname);

                }

        }

        

        private static boolean loadFromClassPath(String filename){

                File file = new File(JNI_TMP_PATH + filename);

                try{

                        if(!file.exists()){

                                InputStream inputStream = TGClassLoader.instance().getClassLoader().getResourceAsStream(filename);

                                if (inputStream != null) {

                                        OutputStream outputStream = new FileOutputStream(file);

                                        

                                        int read;

                                        byte [] buffer = new byte [4096];

                                        while ((read = inputStream.read (buffer)) != -1) {

                                                outputStream.write(buffer, 0, read);

                                        }

                                        outputStream.close();

                                        inputStream.close();

                                }

                        }

                        if(file.exists()){

                                System.load(file.getAbsolutePath());

                                return true;

                        }

                }catch(Throwable throwable){

                        return false;

                }finally{

                        if(file.exists()){

                                file.delete();

                        }

                }

                return false;

        }

}