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

Example 36 with JarURLConnection

use of java.net.JarURLConnection in project wicket by apache.

the class Connections method getLastModified.

/**
 * Gets last modified date of the given {@link URL}
 *
 * @param url
 * @return last modified timestamp or <code>null</code> if not available
 * @throws IOException
 */
public static Time getLastModified(final URL url) throws IOException {
    // check if url points to a local file
    final File file = Files.getLocalFileFromUrl(url);
    if (file != null) {
        // in that case we can get the timestamp faster
        return Files.getLastModified(file);
    }
    // otherwise open the url and proceed
    URLConnection connection = url.openConnection();
    final long milliseconds;
    try {
        if (connection instanceof JarURLConnection) {
            JarURLConnection jarUrlConnection = (JarURLConnection) connection;
            URL jarFileUrl = jarUrlConnection.getJarFileURL();
            URLConnection jarFileConnection = jarFileUrl.openConnection();
            jarFileConnection.setDoInput(false);
            // get timestamp from JAR
            milliseconds = jarFileConnection.getLastModified();
        } else {
            // get timestamp from URL
            milliseconds = connection.getLastModified();
        }
        // return null if timestamp is unavailable
        if (milliseconds == 0) {
            return null;
        }
        // return UNIX timestamp
        return Time.millis(milliseconds);
    } finally {
        closeQuietly(connection);
    }
}

Example 37 with JarURLConnection

use of java.net.JarURLConnection in project android_packages_apps_Settings by crdroidandroid.

the class ClassScanner method getClassesForPackage.

public List<Class<?>> getClassesForPackage(String packageName) throws ClassNotFoundException {
    final List<Class<?>> classes = new ArrayList<>();
    try {
        final Enumeration<URL> resources = Thread.currentThread().getContextClassLoader().getResources(packageName.replace('.', '/'));
        if (!resources.hasMoreElements()) {
            return classes;
        }
        URL url = resources.nextElement();
        while (url != null) {
            final URLConnection connection = url.openConnection();
            if (connection instanceof JarURLConnection) {
                loadClassFromJar((JarURLConnection) connection, packageName, classes);
            } else {
                loadClassFromDirectory(new File(URLDecoder.decode(url.getPath(), "UTF-8")), packageName, classes);
            }
            if (resources.hasMoreElements()) {
                url = resources.nextElement();
            } else {
                break;
            }
        }
    } catch (final IOException e) {
        throw new ClassNotFoundException("Error when parsing " + packageName, e);
    }
    return classes;
}

Example 38 with JarURLConnection

use of java.net.JarURLConnection in project android_packages_apps_Settings by SudaMod.

the class ClassScanner method getClassesForPackage.

public List<Class<?>> getClassesForPackage(String packageName) throws ClassNotFoundException {
    final List<Class<?>> classes = new ArrayList<>();
    try {
        final Enumeration<URL> resources = Thread.currentThread().getContextClassLoader().getResources(packageName.replace('.', '/'));
        if (!resources.hasMoreElements()) {
            return classes;
        }
        URL url = resources.nextElement();
        while (url != null) {
            final URLConnection connection = url.openConnection();
            if (connection instanceof JarURLConnection) {
                loadClassFromJar((JarURLConnection) connection, packageName, classes);
            } else {
                loadClassFromDirectory(new File(URLDecoder.decode(url.getPath(), "UTF-8")), packageName, classes);
            }
            if (resources.hasMoreElements()) {
                url = resources.nextElement();
            } else {
                break;
            }
        }
    } catch (final IOException e) {
        throw new ClassNotFoundException("Error when parsing " + packageName, e);
    }
    return classes;
}

Example 39 with JarURLConnection

use of java.net.JarURLConnection in project incubator-rya by apache.

the class RyaBannerProvider method loadVersion.

/**
 * Loads the version number from the Rya Shell's MANIFEST.MF file.
 *
 * @return The version number of the Rya Shell.
 */
private String loadVersion() {
    final String className = getClass().getSimpleName() + ".class";
    final String classPath = getClass().getResource(className).toString();
    try {
        final URL classUrl = new URL(classPath);
        final JarURLConnection jarConnection = (JarURLConnection) classUrl.openConnection();
        final Manifest manifest = jarConnection.getManifest();
        final Attributes attributes = manifest.getMainAttributes();
        return attributes.getValue("Implementation-Version");
    } catch (final IOException e) {
        log.error("Could not load the application's version from it's manifest.", e);
    }
    return "UNKNOWN";
}

Example 40 with JarURLConnection

use of java.net.JarURLConnection in project minijax by minijax.

the class ClassPathScanner method checkJarFile.

private void checkJarFile(final ClassLoader classLoader, final URL url, final String pckgname) throws IOException {
    final JarURLConnection conn = (JarURLConnection) url.openConnection();
    final JarFile jarFile = conn.getJarFile();
    final Enumeration<JarEntry> entries = jarFile.entries();
    while (entries.hasMoreElements()) {
        final JarEntry jarEntry = entries.nextElement();
        String name = jarEntry.getName();
        if (name.endsWith(".class")) {
            name = name.substring(0, name.length() - 6).replace('/', '.');
            if (name.startsWith(pckgname)) {
                addClass(classLoader, name);
            }
        }
    }
}