Example usage for java.net URLClassLoader URLClassLoader

Introduction

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

Prototype

public URLClassLoader(URL[] urls) 

Source Link

Document

Constructs a new URLClassLoader for the specified URLs using the default delegation parent ClassLoader .

Usage

From source file:dip.world.variant.VariantManager.java

/** Returns the URLClassLoader for a given URL, or creates a new one.... */
private static URLClassLoader getClassLoader(URL packageURL) {
    // WARNING: this method is not (itself) threadsafe
    if (packageURL == null) {
        throw new IllegalArgumentException();
    }//  w ww.j av a  2s  .  c o  m

    // see if a classloader for this url already exists (cache of 1)
    if (packageURL.equals(vm.currentPackageURL)) {
        return vm.currentUCL;
    }

    vm.currentUCL = new URLClassLoader(new URL[] { packageURL });
    vm.currentPackageURL = packageURL;
    return vm.currentUCL;
}

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From source file:fur.shadowdrake.minecraft.InstallPanel.java

private boolean doPostDownload() throws NetworkException {
    boolean b;/*from  w w  w.j  a va  2  s.c o m*/
    PrintStream originalOut = System.out;
    log.setIndeterminate();
    log.setStatusText("running post-download");
    System.setOut(new PrintStream(new OutputStream() {
        @Override
        public void write(int b) throws IOException {
            byte[] x = new byte[1];
            x[0] = (byte) b;
            log.print(new String(x));
        }

        @Override
        public void write(byte[] b, int off, int len) throws IOException {
            log.print(new String(b, off, len));
        }
    }));
    try {
        URLClassLoader urlClassLoader = new URLClassLoader(new URL[] { new File(workingDir).toURI().toURL() });
        Class postDownloadClass = urlClassLoader.loadClass("PostDownload");
        Constructor constructor = postDownloadClass.getConstructor();
        Object pd = constructor.newInstance();
        Method method = postDownloadClass.getMethod("invoke", new Class[] { String.class, String.class });
        b = (boolean) method.invoke(pd, config.getInstallDir().getAbsolutePath(), workingDir);
        if (b) {
            showReadMe();
        }
        return b;
    } catch (MalformedURLException | ClassNotFoundException | NoSuchMethodException | SecurityException
            | InstantiationException | IllegalAccessException | IllegalArgumentException
            | InvocationTargetException | NoClassDefFoundError ex) {
        Logger.getLogger(InstallPanel.class.getName()).log(Level.SEVERE, null, ex);
        log.println("Executing post-download failed.");
    } finally {
        System.setOut(originalOut);
        log.reset();
    }
    return false;
}

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From source file:org.codehaus.mojo.webstart.AbstractBaseJnlpMojo.java

private ClassLoader getCompileClassLoader() throws MalformedURLException {
    URL[] urls = new URL[compileClassPath.size()];
    for (int i = 0; i < urls.length; i++) {
        String spec = compileClassPath.get(i).toString();
        URL url = new File(spec).toURI().toURL();
        urls[i] = url;/*  w ww  . j  a v a  2  s .  com*/
    }
    return new URLClassLoader(urls);
}

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From source file:org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.java

/** {@inheritDoc} */
public SiteRenderingContext createContextForSkin(Artifact skin, Map<String, ?> attributes,
        DecorationModel decoration, String defaultWindowTitle, Locale locale)
        throws IOException, RendererException {
    SiteRenderingContext context = createSiteRenderingContext(attributes, decoration, defaultWindowTitle,
            locale);//  www .  ja  v  a 2s  .  com

    context.setSkin(skin);

    ZipFile zipFile = getZipFile(skin.getFile());
    InputStream in = null;

    try {
        if (zipFile.getEntry(SKIN_TEMPLATE_LOCATION) != null) {
            context.setTemplateName(SKIN_TEMPLATE_LOCATION);
            context.setTemplateClassLoader(new URLClassLoader(new URL[] { skin.getFile().toURI().toURL() }));
        } else {
            context.setTemplateName(DEFAULT_TEMPLATE);
            context.setTemplateClassLoader(getClass().getClassLoader());
            context.setUsingDefaultTemplate(true);
        }

        ZipEntry skinDescriptorEntry = zipFile.getEntry(SkinModel.SKIN_DESCRIPTOR_LOCATION);
        if (skinDescriptorEntry != null) {
            in = zipFile.getInputStream(skinDescriptorEntry);

            SkinModel skinModel = new SkinXpp3Reader().read(in);
            context.setSkinModel(skinModel);

            String toolsPrerequisite = skinModel.getPrerequisites() == null ? null
                    : skinModel.getPrerequisites().getDoxiaSitetools();

            Package p = DefaultSiteRenderer.class.getPackage();
            String current = (p == null) ? null : p.getImplementationVersion();

            if (StringUtils.isNotBlank(toolsPrerequisite) && (current != null)
                    && !matchVersion(current, toolsPrerequisite)) {
                throw new RendererException("Cannot use skin: has " + toolsPrerequisite
                        + " Doxia Sitetools prerequisite, but current is " + current);
            }
        }
    } catch (XmlPullParserException e) {
        throw new RendererException("Failed to parse " + SkinModel.SKIN_DESCRIPTOR_LOCATION
                + " skin descriptor from " + skin.getId() + " skin", e);
    } finally {
        IOUtil.close(in);
        closeZipFile(zipFile);
    }

    return context;
}

---

From source file:org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.java

/** {@inheritDoc} */
@Deprecated/*from  w w  w. jav a 2  s  .com*/
public SiteRenderingContext createContextForTemplate(File templateFile, Map<String, ?> attributes,
        DecorationModel decoration, String defaultWindowTitle, Locale locale) throws MalformedURLException {
    SiteRenderingContext context = createSiteRenderingContext(attributes, decoration, defaultWindowTitle,
            locale);

    context.setTemplateName(templateFile.getName());
    context.setTemplateClassLoader(
            new URLClassLoader(new URL[] { templateFile.getParentFile().toURI().toURL() }));

    return context;
}

---

From source file:org.lnicholls.galleon.server.Server.java

private void createAppClassLoader() {
    ArrayList urls = new ArrayList();
    File directory = new File(System.getProperty("apps"));
    if (directory.exists()) {
        // TODO Handle reloading; what if list changes?
        File[] files = directory.listFiles(new FileFilter() {
            public final boolean accept(File file) {
                return !file.isDirectory() && !file.isHidden() && file.getName().toLowerCase().endsWith(".jar");
            }/*from www . j av  a2  s .  c om*/
        });
        if (files != null) {
            for (int i = 0; i < files.length; ++i) {
                try {
                    URL url = files[i].toURI().toURL();
                    urls.add(url);
                    log.debug("Found app: " + url);
                } catch (Exception ex) {
                    // should never happen
                }
            }
        }
    }

    directory = new File(System.getProperty("hme"));
    if (directory.exists()) {
        // TODO Handle reloading; what if list changes?
        File[] files = directory.listFiles(new FileFilter() {
            public final boolean accept(File file) {
                return !file.isDirectory() && !file.isHidden() && file.getName().toLowerCase().endsWith(".jar");
            }
        });
        if (files != null) {
            for (int i = 0; i < files.length; ++i) {
                try {
                    URL url = files[i].toURI().toURL();
                    urls.add(url);
                    log.debug("Found HME app: " + url);
                } catch (Exception ex) {
                    // should never happen
                }
            }
        }
    }

    mAppClassLoader = new URLClassLoader((URL[]) urls.toArray(new URL[0]));
}

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From source file:org.ebayopensource.turmeric.tools.errorlibrary.ErrorLibraryFileGenerationTest.java

private Class<?> loadTestProjectClass(String classname, File... srcDirs) throws Exception {
    URL urls[] = new URL[srcDirs.length];
    for (int i = 0; i < srcDirs.length; i++) {
        urls[i] = srcDirs[i].toURI().toURL();
    }// www.j  a va 2  s  .com
    URLClassLoader classloader = new URLClassLoader(urls);
    return classloader.loadClass(classname);
}

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From source file:org.apache.openejb.config.DeploymentLoader.java

private void addBeansXmls(final AppModule appModule) {
    final List<URL> urls = appModule.getAdditionalLibraries();
    final URLClassLoader loader = new URLClassLoader(urls.toArray(new URL[urls.size()]));

    final ArrayList<URL> xmls;
    try {/*  w  w  w  .ja  va  2 s. co  m*/
        xmls = Collections.list(loader.getResources("META-INF/beans.xml"));
    } catch (final IOException e) {

        return;
    }

    final CompositeBeans complete = new CompositeBeans();
    for (final URL url : xmls) {
        if (url == null) {
            continue;
        }
        mergeBeansXml(complete, url);
    }

    if (complete.getDiscoveryByUrl().isEmpty()) {
        return;
    }
    complete.removeDuplicates();

    IAnnotationFinder finder;
    try {
        finder = FinderFactory.createFinder(appModule);
    } catch (final Exception e) {
        finder = new FinderFactory.ModuleLimitedFinder(new FinderFactory.OpenEJBAnnotationFinder(
                new WebappAggregatedArchive(appModule.getClassLoader(), appModule.getAltDDs(), xmls)));
    }
    appModule.setEarLibFinder(finder);

    final EjbModule ejbModule = new EjbModule(appModule.getClassLoader(),
            EAR_SCOPED_CDI_BEANS + appModule.getModuleId(), new EjbJar(), new OpenejbJar());
    ejbModule.setBeans(complete);
    ejbModule.setFinder(finder);
    ejbModule.setEjbJar(new EmptyEjbJar());

    appModule.getEjbModules().add(ejbModule);
}

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From source file:org.nuxeo.launcher.config.ConfigurationGenerator.java

/**
 * Build an {@link URLClassLoader} for the given databaseTemplate looking in the templates directory and in the
 * server lib directory, then looks for a driver
 *
 * @param databaseTemplate/*from   ww w  .  j  a  v a  2  s.co m*/
 * @param databaseTemplateDir
 * @param classname Driver class name, defined by {@link #PARAM_DB_DRIVER}
 * @return Driver driver if found, else an Exception must have been raised.
 * @throws IOException
 * @throws FileNotFoundException
 * @throws DatabaseDriverException If there was an error when trying to instantiate the driver.
 * @since 5.6
 */
private Driver lookupDriver(String databaseTemplate, File databaseTemplateDir, String classname)
        throws FileNotFoundException, IOException, DatabaseDriverException {
    File[] files = (File[]) ArrayUtils.addAll( //
            new File(databaseTemplateDir, "lib").listFiles(), //
            serverConfigurator.getServerLibDir().listFiles());
    List<URL> urlsList = new ArrayList<>();
    if (files != null) {
        for (File file : files) {
            if (file.getName().endsWith("jar")) {
                try {
                    urlsList.add(new URL("jar:file:" + file.getPath() + "!/"));
                    log.debug("Added " + file.getPath());
                } catch (MalformedURLException e) {
                    log.error(e);
                }
            }
        }
    }
    URLClassLoader ucl = new URLClassLoader(urlsList.toArray(new URL[0]));
    try {
        return (Driver) Class.forName(classname, true, ucl).newInstance();
    } catch (InstantiationException e) {
        throw new DatabaseDriverException(e);
    } catch (IllegalAccessException e) {
        throw new DatabaseDriverException(e);
    } catch (ClassNotFoundException e) {
        throw new DatabaseDriverException(e);
    }
}

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From source file:org.pentaho.di.core.Const.java

/**
 * @return a new ClassLoader/*w ww. j av  a2  s. c  om*/
 */
public static final ClassLoader createNewClassLoader() throws KettleException {
    try {
        // Nothing really in URL, everything is in scope.
        URL[] urls = new URL[] {};
        URLClassLoader ucl = new URLClassLoader(urls);

        return ucl;
    } catch (Exception e) {
        throw new KettleException("Unexpected error during classloader creation", e);
    }
}

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