org.usergrid.benchmark.boostrap.Command.java Source code

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Here is the source code for org.usergrid.benchmark.boostrap.Command.java

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/*******************************************************************************
 * Copyright 2012 Apigee Corporation
 * 
 * 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.
 ******************************************************************************/
package org.usergrid.benchmark.boostrap;

import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;

import org.apache.commons.lang.reflect.MethodUtils;
import org.springframework.util.StringUtils;
import org.usergrid.benchmark.commands.ToolBase;

public class Command {

    /**
     * @param args
     */
    public static void main(String[] args) {

        if ((args == null) || (args.length < 1)) {
            System.out.println("No command specified");
            return;
        }

        String command = args[0];

        Class<?> clazz = null;

        try {
            clazz = Class.forName(command);
        } catch (ClassNotFoundException e) {
        }

        if (clazz == null) {
            try {
                clazz = Class.forName("org.usergrid.benchmark.commands." + command);
            } catch (ClassNotFoundException e) {
            }
        }

        if (clazz == null) {
            try {
                clazz = Class.forName("org.usergrid.benchmark.commands." + StringUtils.capitalize(command));
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            }
        }

        if (clazz == null) {
            System.out.println("Unable to find command");
            return;
        }

        args = Arrays.copyOfRange(args, 1, args.length);

        try {
            if (ToolBase.class.isAssignableFrom(clazz)) {
                ToolBase tool = (ToolBase) clazz.newInstance();
                tool.startTool(args);
            } else {
                MethodUtils.invokeStaticMethod(clazz, "main", (Object) args);
            }
        } catch (NoSuchMethodException e) {
            System.out.println("Unable to invoke command");
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            System.out.println("Unable to invoke command");
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            System.out.println("Error while invoking command");
            e.printStackTrace();
        } catch (InstantiationException e) {
            System.out.println("Error while instantiating tool object");
            e.printStackTrace();
        }
    }

}