Examples with ProxyFactory javassist.util.proxy.ProxyFactory used on opensource projects

Example 6 with ProxyFactory

use of javassist.util.proxy.ProxyFactory in project che by eclipse.

the class JUnitTestRunner method create4xTestListener.

private Object create4xTestListener(ClassLoader loader, Class<?> listenerClass, AbstractTestListener delegate) throws Exception {
    ProxyFactory f = new ProxyFactory();
    f.setSuperclass(listenerClass);
    f.setFilter(new MethodFilter() {

        @Override
        public boolean isHandled(Method m) {
            String methodName = m.getName();
            switch(methodName) {
                case "testStarted":
                case "testFinished":
                case "testFailure":
                case "testAssumptionFailure":
                    return true;
            }
            return false;
        }
    });
    Class<?> c = f.createClass();
    MethodHandler mi = new MethodHandler() {

        @Override
        public Object invoke(Object self, Method m, Method method, Object[] args) throws Throwable {
            String methodName = m.getName();
            Object description = null;
            Throwable throwable = null;
            switch(methodName) {
                case "testStarted":
                case "testFinished":
                    description = args[0];
                    throwable = null;
                    break;
                case "testFailure":
                case "testAssumptionFailure":
                    description = args[0].getClass().getMethod("getDescription", new Class<?>[0]).invoke(args[0]);
                    throwable = (Throwable) args[0].getClass().getMethod("getException", new Class<?>[0]).invoke(args[0]);
                    break;
                default:
                    return null;
            }
            String testKey = (String) description.getClass().getMethod("getDisplayName", new Class<?>[0]).invoke(description);
            String testName = testKey;
            switch(methodName) {
                case "testStarted":
                    delegate.startTest(testKey, testName);
                    break;
                case "testFinished":
                    delegate.endTest(testKey, testName);
                    break;
                case "testFailure":
                    delegate.addFailure(testKey, throwable);
                    break;
                case "testAssumptionFailure":
                    delegate.addError(testKey, throwable);
                    break;
            }
            return null;
        }
    };
    Object listener = c.getConstructor().newInstance();
    ((javassist.util.proxy.Proxy) listener).setHandler(mi);
    return listener;
}

Example 7 with ProxyFactory

use of javassist.util.proxy.ProxyFactory in project orientdb by orientechnologies.

the class OObjectEntityEnhancer method getProxiedInstance.

@SuppressWarnings("unchecked")
public <T> T getProxiedInstance(final Class<T> iClass, Object iEnclosingInstance, final ODocument doc, final ProxyObject parent, Object... iArgs) {
    if (iClass == null) {
        throw new OSerializationException("Type '" + doc.getClassName() + "' cannot be serialized because is not part of registered entities. To fix this error register this class");
    }
    final Class<T> c;
    boolean isInnerClass = OObjectEntitySerializer.getEnclosingClass(iClass) != null;
    if (Proxy.class.isAssignableFrom(iClass)) {
        c = iClass;
    } else {
        ProxyFactory f = new ProxyFactory();
        f.setSuperclass(iClass);
        if (customMethodFilters.get(iClass) != null) {
            f.setFilter(customMethodFilters.get(iClass));
        } else {
            f.setFilter(defaultMethodFilter);
        }
        c = f.createClass();
    }
    MethodHandler mi = new OObjectProxyMethodHandler(doc);
    ((OObjectProxyMethodHandler) mi).setParentObject(parent);
    try {
        T newEntity;
        if (iArgs != null && iArgs.length > 0) {
            if (isInnerClass) {
                if (iEnclosingInstance == null) {
                    iEnclosingInstance = iClass.getEnclosingClass().newInstance();
                }
                Object[] newArgs = new Object[iArgs.length + 1];
                newArgs[0] = iEnclosingInstance;
                for (int i = 0; i < iArgs.length; i++) {
                    newArgs[i + 1] = iArgs[i];
                }
                iArgs = newArgs;
            }
            Constructor<T> constructor = null;
            for (Constructor<?> constr : c.getConstructors()) {
                boolean found = true;
                if (constr.getParameterTypes().length == iArgs.length) {
                    for (int i = 0; i < constr.getParameterTypes().length; i++) {
                        Class<?> parameterType = constr.getParameterTypes()[i];
                        if (parameterType.isPrimitive()) {
                            if (!isPrimitiveParameterCorrect(parameterType, iArgs[i])) {
                                found = false;
                                break;
                            }
                        } else if (iArgs[i] != null && !parameterType.isAssignableFrom(iArgs[i].getClass())) {
                            found = false;
                            break;
                        }
                    }
                } else {
                    continue;
                }
                if (found) {
                    constructor = (Constructor<T>) constr;
                    break;
                }
            }
            if (constructor != null) {
                newEntity = (T) constructor.newInstance(iArgs);
                initDocument(iClass, newEntity, doc, (ODatabaseObject) ODatabaseRecordThreadLocal.INSTANCE.get().getDatabaseOwner());
            } else {
                if (iEnclosingInstance != null)
                    newEntity = createInstanceNoParameters(c, iEnclosingInstance);
                else
                    newEntity = createInstanceNoParameters(c, iClass);
            }
        } else {
            if (iEnclosingInstance != null)
                newEntity = createInstanceNoParameters(c, iEnclosingInstance);
            else
                newEntity = createInstanceNoParameters(c, iClass);
        }
        ((Proxy) newEntity).setHandler(mi);
        if (OObjectEntitySerializer.hasBoundedDocumentField(iClass))
            OObjectEntitySerializer.setFieldValue(OObjectEntitySerializer.getBoundedDocumentField(iClass), newEntity, doc);
        OObjectEntitySerializer.setVersionField(iClass, newEntity, doc.getVersion());
        return newEntity;
    } catch (InstantiationException ie) {
        OLogManager.instance().error(this, "Error creating proxied instance for class " + iClass.getName(), ie);
    } catch (IllegalAccessException iae) {
        OLogManager.instance().error(this, "Error creating proxied instance for class " + iClass.getName(), iae);
    } catch (IllegalArgumentException iae) {
        OLogManager.instance().error(this, "Error creating proxied instance for class " + iClass.getName(), iae);
    } catch (SecurityException se) {
        OLogManager.instance().error(this, "Error creating proxied instance for class " + iClass.getName(), se);
    } catch (InvocationTargetException ite) {
        OLogManager.instance().error(this, "Error creating proxied instance for class " + iClass.getName(), ite);
    } catch (NoSuchMethodException nsme) {
        OLogManager.instance().error(this, "Error creating proxied instance for class " + iClass.getName(), nsme);
    }
    return null;
}

Example 8 with ProxyFactory

use of javassist.util.proxy.ProxyFactory in project byte-buddy by raphw.

the class ClassByExtensionBenchmark method benchmarkJavassist.

/**
     * Performs a benchmark of a class extension using javassist proxies.
     *
     * @return The created instance, in order to avoid JIT removal.
     * @throws java.lang.Exception If the invocation causes an exception.
     */
@Benchmark
public ExampleClass benchmarkJavassist() throws Exception {
    ProxyFactory proxyFactory = new ProxyFactory() {

        @Override
        protected ClassLoader getClassLoader() {
            return newClassLoader();
        }
    };
    proxyFactory.setUseCache(false);
    proxyFactory.setSuperclass(baseClass);
    proxyFactory.setFilter(new MethodFilter() {

        public boolean isHandled(Method method) {
            return method.getDeclaringClass() == baseClass;
        }
    });
    @SuppressWarnings("unchecked") Object instance = proxyFactory.createClass().getDeclaredConstructor().newInstance();
    ((javassist.util.proxy.Proxy) instance).setHandler(new MethodHandler() {

        public Object invoke(Object self, Method thisMethod, Method proceed, Object[] args) throws Throwable {
            return proceed.invoke(self, args);
        }
    });
    return (ExampleClass) instance;
}

Example 9 with ProxyFactory

use of javassist.util.proxy.ProxyFactory in project mybatis-3 by mybatis.

the class JavassistProxyFactory method crateProxy.

static Object crateProxy(Class<?> type, MethodHandler callback, List<Class<?>> constructorArgTypes, List<Object> constructorArgs) {
    ProxyFactory enhancer = new ProxyFactory();
    enhancer.setSuperclass(type);
    try {
        type.getDeclaredMethod(WRITE_REPLACE_METHOD);
        // ObjectOutputStream will call writeReplace of objects returned by writeReplace
        if (log.isDebugEnabled()) {
            log.debug(WRITE_REPLACE_METHOD + " method was found on bean " + type + ", make sure it returns this");
        }
    } catch (NoSuchMethodException e) {
        enhancer.setInterfaces(new Class[] { WriteReplaceInterface.class });
    } catch (SecurityException e) {
    // nothing to do here
    }
    Object enhanced;
    Class<?>[] typesArray = constructorArgTypes.toArray(new Class[constructorArgTypes.size()]);
    Object[] valuesArray = constructorArgs.toArray(new Object[constructorArgs.size()]);
    try {
        enhanced = enhancer.create(typesArray, valuesArray);
    } catch (Exception e) {
        throw new ExecutorException("Error creating lazy proxy.  Cause: " + e, e);
    }
    ((Proxy) enhanced).setHandler(callback);
    return enhanced;
}