Java Method Call invokeProxied(final Callable callable, final ClassLoader classLoader)

Description

Runs a Callable within a Proxy instance.

License

Apache License

Parameter

Parameter	Description
callable	A callable instance to invoke within a Proxy instance
classLoader	The ClassLoader used to create the Proxy instance

Exception

Parameter	Description
Exception	an exception

Declaration

public static void invokeProxied(final Callable<?> callable, final ClassLoader classLoader) throws Exception 

Method Source Code

//package com.java2s;
/*/*from  w  w  w. jav a  2  s .  com*/
 * #%L
 * Wildfly Camel :: Subsystem
 * %%
 * Copyright (C) 2013 - 2017 RedHat
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.concurrent.Callable;

public class Main {
    /**
     * Runs a {@link Callable} within a {@link Proxy} instance. See the following issues for information
     * around its primary use case.
     *
     * https://issues.jboss.org/browse/ENTESB-7117
     * https://github.com/wildfly-extras/wildfly-camel/issues/1919
     *
     * @param callable A callable instance to invoke within a {@link Proxy} instance
     * @param classLoader The ClassLoader used to create the {@link Proxy} instance
     * @throws Exception
     */
    public static void invokeProxied(final Callable<?> callable, final ClassLoader classLoader) throws Exception {
        Callable<?> callableProxy = (Callable) Proxy.newProxyInstance(classLoader,
                new Class<?>[] { Callable.class }, new InvocationHandler() {
                    @Override
                    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                        callable.call();
                        return null;
                    }
                });
        callableProxy.call();
    }
}

Related

1. invokePrivateMethod(Object obj, String methodName, Class[] parameterTypes, Object[] args)
2. invokePrivateMethod(String methodName, Class clazz, Object object)
3. invokeProperty(Object obj, String property)
4. invokeProtectedMethod(Class c, String method, Object... args)
5. invokeProtectedMethod(Object o, Object[] args, String methodName, Class[] types)
6. invokePublicMethod(Object o, String methodName, Class[] classes, Object[] objects)
7. invokeQuietly(MethodHandle handle, Object instance)
8. invokeQuietly(Object target, Method method, Object[] params)
9. invokeReadResolveOn(Object object, Class clz)