Java Method Call invokeCmd(String className, String[] args)

Description

invoke Cmd

License

Apache License

Declaration

public static void invokeCmd(String className, String[] args) 

Method Source Code

//package com.java2s;
/*/*from  w ww .  ja va 2 s.  co  m*/
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {
    public static void invokeCmd(String className, String[] args) {
        Class<?> cmd = null;
        try {
            cmd = Class.forName(className);
        } catch (ClassNotFoundException ex) {
            System.err.println("Class '" + className + "' not found");
            System.exit(1);
        }

        Method method = null;
        try {
            method = cmd.getMethod("main", new Class[] { String[].class });
        } catch (NoSuchMethodException ex) {
            System.err.println("'main' not found but the class '" + className + "' was");
            System.exit(1);
        }

        try {
            method.invoke(null, new Object[] { args });
            return;
        } catch (IllegalArgumentException ex) {
            System.err.println("IllegalArgumentException exception: " + ex.getMessage());
            System.exit(7);
        } catch (IllegalAccessException ex) {
            System.err.println("IllegalAccessException exception: " + ex.getMessage());
            System.exit(8);
        } catch (InvocationTargetException ex) {
            System.err.println("InvocationTargetException exception: " + ex.getMessage());
            System.exit(9);
        }

        //arq.query.main(args) ;
    }
}

Related

1. invokeAccessableMethodWithArguments(Object instance, String method, Object... arguments)
2. invokeAndCastCollection(T returnType, Method m, Object obj, Object... args)
3. invokeAnnotatedDeclaredMethod(Object obj, Class annotationType)
4. invokeAnUnwrapException(final Method method, final Object[] args, final Object target)
5. invokeCallback(String callbackName, String callbackParam)
6. invokeDeclared(Class c, Object obj, String method, Class[] paramClasses, Object[] params)
7. invokeDeclared(Class c, Object obj, String method, Class[] paramClasses, Object[] params)
8. invokeDeclaredMethod(Object object, String methodName, Object... parameters)
9. invokeDeclaredMethod(String methodName, Object target, Class[] parameterTypes, Object[] parameters)