Examples with URLClassLoader java.net.URLClassLoader used on opensource projects

Example 96 with URLClassLoader

use of java.net.URLClassLoader in project beam by apache.

the class FlinkRunner method detectClassPathResourcesToStage.

/**
   * Attempts to detect all the resources the class loader has access to. This does not recurse
   * to class loader parents stopping it from pulling in resources from the system class loader.
   *
   * @param classLoader The URLClassLoader to use to detect resources to stage.
   * @return A list of absolute paths to the resources the class loader uses.
   * @throws IllegalArgumentException If either the class loader is not a URLClassLoader or one
   *   of the resources the class loader exposes is not a file resource.
   */
protected static List<String> detectClassPathResourcesToStage(ClassLoader classLoader) {
    if (!(classLoader instanceof URLClassLoader)) {
        String message = String.format("Unable to use ClassLoader to detect classpath elements. " + "Current ClassLoader is %s, only URLClassLoaders are supported.", classLoader);
        LOG.error(message);
        throw new IllegalArgumentException(message);
    }
    List<String> files = new ArrayList<>();
    for (URL url : ((URLClassLoader) classLoader).getURLs()) {
        try {
            files.add(new File(url.toURI()).getAbsolutePath());
        } catch (IllegalArgumentException | URISyntaxException e) {
            String message = String.format("Unable to convert url (%s) to file.", url);
            LOG.error(message);
            throw new IllegalArgumentException(message, e);
        }
    }
    return files;
}

Example 97 with URLClassLoader

use of java.net.URLClassLoader in project zm-mailbox by Zimbra.

the class ZimletUtil method getHandler.

/**
     * Loads all the Zimlets, locates the server side ZimletHandler for each Zimlets,
     * loads the class and instantiate the object, then returns the instance.
     *
     * @param name of the Zimlet
     * @return ZimletHandler object
     */
public static ZimletHandler getHandler(String name) {
    loadZimlets();
    Class zh = sZimletHandlers.get(name);
    if (zh == null) {
        ZimletFile zf = sZimlets.get(name);
        if (zf == null) {
            return null;
        }
        URLClassLoader cl = null;
        try {
            String clazz = zf.getZimletDescription().getServerExtensionClass();
            if (clazz != null) {
                URL[] urls = { zf.toURL() };
                cl = new URLClassLoader(urls, ZimletUtil.class.getClassLoader());
                zh = cl.loadClass(clazz);
                ZimbraLog.zimlet.info("Loaded class " + zh.getName());
                sZimletHandlers.put(name, zh);
            }
        } catch (Exception e) {
            ZimbraLog.zimlet.warn("Unable to load zimlet handler for %s", name, e);
            return null;
        } finally {
            if (cl != null) {
                try {
                    cl.close();
                } catch (IOException e) {
                    ZimbraLog.zimlet.warn("failed to close URLClassLoader", e);
                }
            }
        }
    }
    try {
        if (zh != null) {
            return (ZimletHandler) zh.newInstance();
        }
    } catch (Exception e) {
        ZimbraLog.zimlet.warn("Unable to instantiate zimlet handler for " + name, e);
    }
    return null;
}

Example 98 with URLClassLoader

use of java.net.URLClassLoader in project phoenix by apache.

the class PhoenixContextExecutorTest method testCall.

@Test
public void testCall() {
    URLClassLoader customerClassLoader = new URLClassLoader(new URL[] {});
    ClassLoader saveCcl = Thread.currentThread().getContextClassLoader();
    Thread.currentThread().setContextClassLoader(customerClassLoader);
    try {
        PhoenixContextExecutor.callWithoutPropagation(new Callable<Object>() {

            @Override
            public Object call() {
                assertEquals(PhoenixContextExecutor.class.getClassLoader(), Thread.currentThread().getContextClassLoader());
                return null;
            }
        });
    } finally {
        Thread.currentThread().setContextClassLoader(saveCcl);
    }
}

Example 99 with URLClassLoader

use of java.net.URLClassLoader in project maven-plugins by apache.

the class JavadocUtil method getTagletClassNames.

/**
     * Auto-detect the class names of the implementation of <code>com.sun.tools.doclets.Taglet</code> class from a
     * given jar file.
     * <br/>
     * <b>Note</b>: <code>JAVA_HOME/lib/tools.jar</code> is a requirement to find
     * <code>com.sun.tools.doclets.Taglet</code> class.
     *
     * @param jarFile not null
     * @return the list of <code>com.sun.tools.doclets.Taglet</code> class names from a given jarFile.
     * @throws IOException if jarFile is invalid or not found, or if the <code>JAVA_HOME/lib/tools.jar</code>
     * is not found.
     * @throws ClassNotFoundException if any
     * @throws NoClassDefFoundError if any
     */
protected static List<String> getTagletClassNames(File jarFile) throws IOException, ClassNotFoundException, NoClassDefFoundError {
    List<String> classes = getClassNamesFromJar(jarFile);
    ClassLoader cl;
    // Needed to find com.sun.tools.doclets.Taglet class
    File tools = new File(System.getProperty("java.home"), "../lib/tools.jar");
    if (tools.exists() && tools.isFile()) {
        cl = new URLClassLoader(new URL[] { jarFile.toURI().toURL(), tools.toURI().toURL() }, null);
    } else {
        cl = new URLClassLoader(new URL[] { jarFile.toURI().toURL() }, null);
    }
    List<String> tagletClasses = new ArrayList<String>();
    Class<?> tagletClass = cl.loadClass("com.sun.tools.doclets.Taglet");
    for (String s : classes) {
        Class<?> c = cl.loadClass(s);
        if (tagletClass.isAssignableFrom(c) && !Modifier.isAbstract(c.getModifiers())) {
            tagletClasses.add(c.getName());
        }
    }
    return tagletClasses;
}

Example 100 with URLClassLoader

use of java.net.URLClassLoader in project phoenix by apache.

the class ContextClassloaderIT method setUpBeforeClass.

@BeforeClass
public static void setUpBeforeClass() throws Exception {
    Configuration conf = HBaseConfiguration.create();
    setUpConfigForMiniCluster(conf);
    hbaseTestUtil = new HBaseTestingUtility(conf);
    hbaseTestUtil.startMiniCluster();
    String clientPort = hbaseTestUtil.getConfiguration().get(QueryServices.ZOOKEEPER_PORT_ATTRIB);
    String url = JDBC_PROTOCOL + JDBC_PROTOCOL_SEPARATOR + LOCALHOST + JDBC_PROTOCOL_SEPARATOR + clientPort + JDBC_PROTOCOL_TERMINATOR + PHOENIX_TEST_DRIVER_URL_PARAM;
    driver = initAndRegisterTestDriver(url, ReadOnlyProps.EMPTY_PROPS);
    Connection conn = DriverManager.getConnection(url);
    Statement stmt = conn.createStatement();
    stmt.execute("CREATE TABLE test (ID INTEGER NOT NULL PRIMARY KEY, NAME VARCHAR)");
    stmt.execute("UPSERT INTO test VALUES (1, 'name1')");
    stmt.execute("UPSERT INTO test VALUES (2, 'name2')");
    stmt.close();
    conn.commit();
    conn.close();
    badContextClassloader = new URLClassLoader(new URL[] { File.createTempFile("invalid", ".jar").toURI().toURL() }, null);
}