Examples with InvocationHandler java.lang.reflect.InvocationHandler used on opensource projects

Example 96 with InvocationHandler

use of java.lang.reflect.InvocationHandler in project pentaho-platform by pentaho.

the class JAXRSPluginServlet method service.

@Override
public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // $NON-NLS-1$
    logger.debug("servicing request for resource " + request.getPathInfo());
    // seldom and don't need to be that performant.
    if (WADL_PATTERN.matcher(request.getPathInfo()).find()) {
        final HttpServletRequest originalRequest = request;
        final String appWadlUrl = request.getPathInfo().substring(request.getPathInfo().indexOf(APPLICATION_WADL), request.getPathInfo().length());
        request = (HttpServletRequest) Proxy.newProxyInstance(getClass().getClassLoader(), new Class[] { HttpServletRequest.class }, new InvocationHandler() {

            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                if (method.getName().equals("getPathInfo")) {
                    return appWadlUrl;
                } else if (method.getName().equals("getRequestURL")) {
                    String url = originalRequest.getRequestURL().toString();
                    return new StringBuffer(url.substring(0, url.indexOf(originalRequest.getPathInfo())) + "/" + appWadlUrl);
                } else if (method.getName().equals("getRequestURI")) {
                    String uri = originalRequest.getRequestURI();
                    return uri.substring(0, uri.indexOf(originalRequest.getPathInfo())) + "/" + appWadlUrl;
                }
                // We don't care about the Method, delegate out to real Request object.
                return method.invoke(originalRequest, args);
            }
        });
        if (originalRequest.getRequestURL() != null) {
            requestThread.set(originalRequest.getRequestURL().toString());
        } else if (originalRequest.getRequestURI() != null) {
            requestThread.set(originalRequest.getRequestURI().toString());
        }
    }
    super.service(request, response);
}

Example 97 with InvocationHandler

use of java.lang.reflect.InvocationHandler in project pentaho-platform by pentaho.

the class JAXRSServlet method service.

@Override
public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    if (logger.isDebugEnabled()) {
        // $NON-NLS-1$
        logger.debug("servicing request for resource " + request.getPathInfo());
    }
    if (request.getMethod().equals(GET)) {
        // Extension to allow accept type override from mime-type query param
        final String mimeType = request.getParameter(MIME_TYPE);
        if (mimeType != null) {
            final HttpServletRequest originalRequest = request;
            request = (HttpServletRequest) Proxy.newProxyInstance(getClass().getClassLoader(), new Class[] { HttpServletRequest.class }, new InvocationHandler() {

                public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                    if (method.getName().equals(GET_HEADERS) && args.length > 0 && args[0].equals(ACCEPT)) {
                        return new Enumeration() {

                            boolean hasMore = true;

                            @Override
                            public boolean hasMoreElements() {
                                return hasMore;
                            }

                            @Override
                            public Object nextElement() {
                                hasMore = false;
                                return mimeType;
                            }
                        };
                    }
                    return method.invoke(originalRequest, args);
                }
            });
        }
    }
    super.service(request, response);
}

Example 98 with InvocationHandler

use of java.lang.reflect.InvocationHandler in project fabric8 by jboss-fuse.

the class JolokiaMXBeanProxy method getMXBeanProxy.

@SuppressWarnings("unchecked")
public static <T extends Object> T getMXBeanProxy(String serviceURL, ObjectName objectName, Class<T> mxbeanInterface, String username, String password, MBeanInfo mbeanInfo) {
    // [TODO] this should be obtaind remotely over jolokia
    if (mbeanInfo == null) {
        MBeanServer server = ManagementFactory.getPlatformMBeanServer();
        try {
            try {
                StandardMBean impl = new StandardMBean(Mockito.mock(mxbeanInterface), mxbeanInterface, true);
                server.registerMBean(impl, objectName);
                mbeanInfo = server.getMBeanInfo(objectName);
            } finally {
                if (server.isRegistered(objectName)) {
                    server.unregisterMBean(objectName);
                }
            }
        } catch (Exception ex) {
            throw new IllegalStateException("Cannot obtain MBeanInfo", ex);
        }
    }
    ClassLoader classLoader = mxbeanInterface.getClassLoader();
    InvocationHandler handler = new MXBeanInvocationHandler(serviceURL, objectName, username, password, classLoader, mbeanInfo);
    return (T) Proxy.newProxyInstance(classLoader, new Class<?>[] { mxbeanInterface }, handler);
}

Example 99 with InvocationHandler

use of java.lang.reflect.InvocationHandler in project fabric8 by jboss-fuse.

the class InvocationTest method testUnderLoadAsyncProto.

@Test(timeout = 30 * 1000)
public void testUnderLoadAsyncProto() throws Exception {
    HashMap<String, SerializationStrategy> map = new HashMap<String, SerializationStrategy>();
    map.put("protobuf", new ProtobufSerializationStrategy());
    DispatchQueue queue = Dispatch.createQueue();
    ServerInvokerImpl server = new ServerInvokerImpl("tcp://localhost:0", queue, map);
    server.start();
    ClientInvokerImpl client = new ClientInvokerImpl(queue, map);
    client.start();
    try {
        final HelloImpl helloImpl = new HelloImpl();
        server.registerService("service-id", new ServerInvoker.ServiceFactory() {

            public Object get() {
                return helloImpl;
            }

            public void unget() {
            }
        }, HelloImpl.class.getClassLoader());
        InvocationHandler handler = client.getProxy(server.getConnectAddress(), "service-id", HelloImpl.class.getClassLoader());
        final Hello hello = (Hello) Proxy.newProxyInstance(HelloImpl.class.getClassLoader(), new Class[] { Hello.class }, handler);
        final AtomicInteger requests = new AtomicInteger(0);
        final AtomicInteger failures = new AtomicInteger(0);
        final long[] latencies = new long[BENCHMARK_CLIENTS * BENCHMARK_INVOCATIONS_PER_CLIENT];
        final long start = System.nanoTime();
        AsyncClient[] threads = new AsyncClient[BENCHMARK_CLIENTS];
        for (int t = 0; t < BENCHMARK_CLIENTS; t++) {
            threads[t] = new AsyncClient(t, BENCHMARK_INVOCATIONS_PER_CLIENT, hello, failures, requests, latencies);
            threads[t].start();
        }
        for (int t = 0; t < BENCHMARK_CLIENTS; t++) {
            threads[t].join();
        }
        final long end = System.nanoTime();
        long latency_sum = 0;
        for (int t = 0; t < latencies.length; t++) {
            if (latencies[t] != -1) {
                latency_sum += latencies[t];
            }
        }
        double latency_avg = ((latency_sum * 1.0d) / requests.get()) / MILLIS_IN_A_NANO;
        double request_rate = ((requests.get() * 1.0d) / (end - start)) * SECONDS_IN_A_NANO;
        System.err.println(String.format("Requests/Second: %,.2f", request_rate));
        System.err.println(String.format("Average request latency: %,.2f ms", latency_avg));
        System.err.println("Error Ratio: " + failures.get() + " / " + requests.get());
    } finally {
        server.stop();
        client.stop();
    }
}

Example 100 with InvocationHandler

use of java.lang.reflect.InvocationHandler in project fabric8 by jboss-fuse.

the class InvocationTest method testOverflow.

@Test(timeout = 30 * 1000)
public void testOverflow() throws Exception {
    DispatchQueue queue = Dispatch.createQueue();
    HashMap<String, SerializationStrategy> map = new HashMap<String, SerializationStrategy>();
    map.put("protobuf", new ProtobufSerializationStrategy());
    ServerInvokerImpl server = new ServerInvokerImpl("tcp://localhost:0", queue, map);
    server.start();
    ClientInvokerImpl client = new ClientInvokerImpl(queue, map);
    client.start();
    try {
        server.registerService("service-id", new ServerInvoker.ServiceFactory() {

            public Object get() {
                return new HelloImpl();
            }

            public void unget() {
            }
        }, HelloImpl.class.getClassLoader());
        InvocationHandler handler = client.getProxy(server.getConnectAddress(), "service-id", HelloImpl.class.getClassLoader());
        final Hello hello = (Hello) Proxy.newProxyInstance(HelloImpl.class.getClassLoader(), new Class[] { Hello.class }, handler);
        final AtomicInteger requests = new AtomicInteger(0);
        final AtomicInteger responses = new AtomicInteger(0);
        final AtomicInteger failures = new AtomicInteger(0);
        char[] chars = new char[65 * 1024];
        final String payload = new String(chars);
        Thread[] threads = new Thread[BENCHMARK_CLIENTS];
        for (int t = 0; t < BENCHMARK_CLIENTS; t++) {
            threads[t] = new Thread() {

                public void run() {
                    try {
                        requests.incrementAndGet();
                        hello.hello(payload);
                        responses.incrementAndGet();
                    } catch (Throwable t) {
                        failures.incrementAndGet();
                    }
                }
            };
            threads[t].start();
        }
        for (int t = 0; t < BENCHMARK_CLIENTS; t++) {
            threads[t].join(10000);
            System.err.format("REQUEST: %d of %d%n", requests.get(), BENCHMARK_CLIENTS);
            System.err.format("RESPONSES: %d of %d%n", responses.get(), BENCHMARK_CLIENTS);
            assertEquals(threads[t].isAlive(), false);
        }
        assertEquals(BENCHMARK_CLIENTS, requests.get());
        assertEquals(BENCHMARK_CLIENTS, responses.get());
        assertEquals(0, failures.get());
    } finally {
        server.stop();
        client.stop();
    }
}