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

Example 16 with URLStreamHandlerFactory

use of java.net.URLStreamHandlerFactory in project fabric8 by jboss-fuse.

the class URLs method setURLStreamHandlerFactory.

/**
 * The code barfs if we've already set the factory so we have to clear it via reflection first.
 * <p/>
 * Hacks FTW :)
 */
static void setURLStreamHandlerFactory(URLStreamHandlerFactory newFactory) {
    String fieldName = "factory";
    Class<URL> clazz = URL.class;
    try {
        Field field = clazz.getDeclaredField(fieldName);
        field.setAccessible(true);
        URLStreamHandlerFactory oldValue = (URLStreamHandlerFactory) field.get(null);
        if (oldValue != null) {
            field.set(null, null);
        }
    } catch (NoSuchFieldException e) {
        LOG.error("Could not find field " + fieldName + " in class " + clazz.getName() + ". " + e, e);
    } catch (IllegalAccessException e) {
        LOG.error("Could not access field " + fieldName + " in class " + clazz.getName() + ". " + e, e);
    }
    if (newFactory != null) {
        URL.setURLStreamHandlerFactory(newFactory);
    }
}

Example 17 with URLStreamHandlerFactory

use of java.net.URLStreamHandlerFactory in project fabric8 by jboss-fuse.

the class URLs method doWithCustomURLHandlerFactory.

/**
 * Executes the given block with the given {@link URLStreamHandlerFactory},
 * whatever is happening with system properties.
 */
public static <T> T doWithCustomURLHandlerFactory(final URLStreamHandlerFactory customFactory, Callable<T> block) throws Exception {
    final URLStreamHandlerFactory oldFactory = getURLStreamHandlerFactory();
    try {
        URLStreamHandlerFactory newFactory = new URLStreamHandlerFactory() {

            @Override
            public URLStreamHandler createURLStreamHandler(String protocol) {
                URLStreamHandler answer = customFactory.createURLStreamHandler(protocol);
                if (answer == null && oldFactory != null) {
                    answer = oldFactory.createURLStreamHandler(protocol);
                }
                return answer;
            }
        };
        setURLStreamHandlerFactory(newFactory);
        return block.call();
    } finally {
        setURLStreamHandlerFactory(oldFactory);
    }
}