Example usage for java.net URLClassLoader newInstance

Introduction

In this page you can find the example usage for java.net URLClassLoader newInstance.

Prototype

public static URLClassLoader newInstance(final URL[] urls) 

Source Link

Document

Creates a new instance of URLClassLoader for the specified URLs and default parent class loader.

Usage

From source file:com.datatorrent.stram.api.IotDev.java

public static URLClassLoader loadDependencies(LinkedHashSet<URL> launchDependencies) {
    URLClassLoader cl = URLClassLoader
            .newInstance(launchDependencies.toArray(new URL[launchDependencies.size()]));
    Thread.currentThread().setContextClassLoader(cl);
    StringCodecs.check();//from w w w. j  a v  a 2 s .  c  o  m
    return cl;
}

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From source file:org.apache.taverna.wsdl.testutils.WSDLTestHelper.java

@BeforeClass
public static void makeClassLoader() throws MalformedURLException {
    if (classLoader == null) {
        URL[] urls = new URL[] { new URL(TEST_CASES_URL) };
        classLoader = URLClassLoader.newInstance(urls);
    }/*from   w ww .  j  ava2 s .  co  m*/

    Assume.assumeNotNull(getResource(README_MD));
}

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From source file:org.oxenburgh.spritnesse.Utils.java

static public URLClassLoader createClassLoader(String fileName) {
    String urlPath = makeUrlPath(fileName);
    URL url = null;/*from ww  w.j  av a 2 s  .c  o  m*/
    try {
        url = new URL(urlPath);
    } catch (MalformedURLException e) {
        throw new RuntimeException(e);
    }
    URLClassLoader loader = URLClassLoader.newInstance(new URL[] { url });

    return loader;
}

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From source file:org.huahinframework.manager.queue.RunQueue.java

@SuppressWarnings("unchecked")
@Override/*from w w  w. ja  va 2  s . com*/
public void run() {
    try {
        File jarFile = new File(queue.getJar());
        URL[] urls = { jarFile.toURI().toURL() };
        ClassLoader loader = URLClassLoader.newInstance(urls);
        Class<Tool> clazz = (Class<Tool>) loader.loadClass(queue.getClazz());

        if (!(clazz.newInstance() instanceof Tool)) {
            queue.setMessage("this jar not supported. this class dose not instance of Tool.class.");
            QueueUtils.registerQueue(queuePath, queue);
            return;
        }

        log.info("job start: " + clazz.getName());
        ToolRunner.run(jobConf, clazz.newInstance(), queue.getArguments());
        log.info("job end: " + clazz.getName());
    } catch (Exception e) {
        queue.setMessage(e.toString());
        try {
            QueueUtils.registerQueue(queuePath, queue);
        } catch (IOException e1) {
            e1.printStackTrace();
            log.error(e1);
        }
        e.printStackTrace();
        log.error(e);
    }
}

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From source file:net.jselby.pc.bukkit.BukkitLoader.java

@SuppressWarnings("unchecked")
public void loadPlugin(File file)
        throws ZipException, IOException, InvalidPluginException, InvalidDescriptionException {
    if (file.getName().endsWith(".jar")) {
        JarFile jarFile = new JarFile(file);

        URL[] urls = { new URL("jar:file:" + file + "!/") };
        URLClassLoader cl = URLClassLoader.newInstance(urls);

        ZipEntry bukkit = jarFile.getEntry("plugin.yml");
        String bukkitClass = "";
        PluginDescriptionFile reader = null;
        if (bukkit != null) {
            reader = new PluginDescriptionFile(new InputStreamReader(jarFile.getInputStream(bukkit)));
            bukkitClass = reader.getMain();
            System.out.println("Loading plugin " + reader.getName() + "...");
        }//from   w  w  w .  j  av  a2s . c  o m

        jarFile.close();

        try {
            //addToClasspath(file);
            JavaPluginLoader pluginLoader = new JavaPluginLoader(PoweredCube.getInstance().getBukkitServer());
            Plugin plugin = pluginLoader.loadPlugin(file);
            Class<JavaPlugin> pluginClass = (Class<JavaPlugin>) plugin.getClass().getSuperclass();
            for (Method method : pluginClass.getDeclaredMethods()) {
                if (method.getName().equalsIgnoreCase("init")
                        || method.getName().equalsIgnoreCase("initialize")) {
                    method.setAccessible(true);
                    method.invoke(plugin, null, PoweredCube.getInstance().getBukkitServer(), reader,
                            new File("plugins" + File.separator + reader.getName()), file, cl);
                }
            }

            // Load the plugin, using its default methods
            BukkitPluginManager mgr = (BukkitPluginManager) Bukkit.getPluginManager();
            mgr.registerPlugin((JavaPlugin) plugin);
            plugin.onLoad();
            plugin.onEnable();
        } catch (Exception e1) {
            e1.printStackTrace();
        } catch (Error e1) {
            e1.printStackTrace();
        }

        jarFile.close();
    }
}

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From source file:com.github.dirkraft.jash.ShExecutableJarBundler.java

@Override
public List<String> validateAndInit() throws Exception {
    List<String> errors = super.validateAndInit();

    if (!jarFile.isFile()) {
        errors.add(jarFile + " is not a file.");
        return errors;
    }/*  www.  j a  v  a2 s .c om*/

    JarFile jar = new JarFile(jarFile);
    Manifest manifest = jar.getManifest();
    String mainClass = manifest.getMainAttributes().getValue(Attributes.Name.MAIN_CLASS);
    ClassLoader jarClassLoader = URLClassLoader.newInstance(new URL[] { jarFile.toURI().toURL() });
    try {
        ClassUtils.getClass(jarClassLoader, mainClass, false);
    } catch (ClassNotFoundException e) {
        errors.add("Could not find Main-Class: " + mainClass + " in jar " + jarFile.getAbsolutePath());
        return errors;
    }

    _targetBinary = outputDir.toPath().resolve(commandName).toFile();
    if (_targetBinary.exists()) {
        errors.add("Target binary path " + _targetBinary.getAbsolutePath()
                + " is occupied. Will not overwrite, so aborting.");
    }

    return errors;
}

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From source file:com.metadave.stow.TestStow.java

@Test
public void testGen() throws Exception {
    InputStream is = this.getClass().getResourceAsStream("/Stow.stg");
    File f = File.createTempFile("stow", "test.stg");
    String root = f.getParent();//from ww  w.  ja  va2  s.c o m
    String classdir = root + File.separator + "stowtest";

    String stgPath = f.getAbsolutePath();
    String stowStg = org.apache.commons.io.IOUtils.toString(is);

    org.apache.commons.io.FileUtils.writeStringToFile(f, stowStg);

    File d = new File(classdir);
    d.mkdirs();

    Stow.generateObjects(stgPath, "stowtest", "Test", classdir);

    File testSTBean = new File(classdir + File.separator + "TestSTBean.java");
    assertTrue(testSTBean.exists());

    File testSTAccessor = new File(classdir + File.separator + "TestSTAccessor.java");
    assertTrue(testSTAccessor.exists());

    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    compiler.run(null, null, null, testSTBean.getAbsolutePath());
    compiler.run(null, null, null, testSTAccessor.getAbsolutePath());

    File testSTAccessorClass = new File(classdir + File.separator + "TestSTAccessor.class");
    assertTrue(testSTAccessorClass.exists());

    File testSTBeanClass = new File(classdir + File.separator + "TestSTBean.class");
    assertTrue(testSTBeanClass.exists());

    URLClassLoader classLoader = URLClassLoader.newInstance(new URL[] { new File(root).toURI().toURL() });
    Class<?> cls = Class.forName("stowtest.TestSTBean", true, classLoader);

    Constructor<?> c = cls.getConstructors()[0];
    STGroup stg = new STGroupFile(f.getAbsolutePath());
    Object o = c.newInstance(stg);

    Set<String> methods = new HashSet<String>();
    methods.add("addPackage");
    methods.add("addBeanClass");
    methods.add("addTemplateName");
    methods.add("addAccessor");

    int count = 0;
    for (Method m : o.getClass().getMethods()) {
        if (methods.contains(m.getName())) {
            count++;
        }
    }
    assertEquals("Look for 8 generated methods", 8, count);
}

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From source file:com.rk.grid.cluster.slave.NodeMain.java

/**
 * @return/*from   w  w w  .  j  a  v  a2s.co  m*/
 * @throws MalformedURLException 
 */
private static ClassLoader getClassLoader(String pathname) throws MalformedURLException {
    //      {
    //         URLClassLoader loader = new URLClassLoader(new URL[] { new URL("jar:file:/C:\\temp\\Caf1.jar!/") });
    //      }
    {
        File file = new File(pathname);

        if (!file.exists())
            throw new RuntimeException("File not find: " + pathname);

        URL[] urls = { file.toURI().toURL() };
        final URLClassLoader urlClassLoader = URLClassLoader.newInstance(urls);
        return urlClassLoader;
    }
}

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From source file:org.adscale.testtodoc.TestToDoc.java

URLClassLoader createClassLoader(String fileName) throws Exception {
    String urlPath = makeUrlPath(fileName);
    URL url = new URL(urlPath);
    return URLClassLoader.newInstance(new URL[] { url });
}

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From source file:bs.java

private static void loadable(String filename) {
    File file = new File(filename);

    JarInputStream is;/* w  w w. j  av a 2 s.  com*/
    try {
        ClassLoader loader = URLClassLoader.newInstance(new URL[] { file.toURI().toURL() });
        is = new JarInputStream(new FileInputStream(file));
        JarEntry entry;
        while ((entry = is.getNextJarEntry()) != null) {
            if (entry.getName().endsWith(".class") && !entry.getName().contains("/")) {
                Class<?> cls = Class.forName(FilenameUtils.removeExtension(entry.getName()), false, loader);
                for (Class<?> i : cls.getInterfaces()) {
                    if (i.equals(Loadable.class)) {
                        Loadable l = (Loadable) cls.newInstance();
                        Bs.addModule(l);
                    }
                }
            }
        }
    } catch (Exception e) {
        System.out.println(e.getMessage());
    }

}

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