org.malaguna.cmdit.service.CommandRunner.java Source code

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Here is the source code for org.malaguna.cmdit.service.CommandRunner.java

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/**
 * This file is part of CMDit.
 *
 * CMDit is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * CMDit is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with CMDit.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.malaguna.cmdit.service;

import java.lang.reflect.Constructor;

import org.apache.log4j.Logger;
import org.malaguna.cmdit.service.commands.Command;
import org.malaguna.cmdit.service.commands.CommandException;
import org.springframework.beans.factory.BeanFactory;

public abstract class CommandRunner extends AbstractService {
    protected Logger logger = Logger.getLogger(this.getClass());
    private ServiceDelegate service = null;

    public ServiceDelegate getService() {
        return service;
    }

    public void setService(ServiceDelegate service) {
        this.service = service;
        setBeanFactory(service.getBeanFactory());
    }

    /**
     * Dada una clase de un comando, instancia el mismo apropiadamente 
     * 
     * @param clazz
     * @return
     */
    protected Command createCommand(Class<? extends Command> clazz) {
        Command comand = null;

        //Build a new command using Web Application Context (wac)
        try {
            Constructor<?> c = clazz.getConstructor(BeanFactory.class);
            comand = (Command) c.newInstance(getBeanFactory());
        } catch (Exception e) {
            logger.error("Error creating new command [" + clazz.toString() + "] : " + e.getMessage());
        }

        return comand;
    }

    /**
     * Ejecuta un commando de manera apropiada
     * 
     * @param cmd
     * @return
     * @throws CommandException
     */
    protected Command runCommand(Command cmd) throws CommandException {
        return getService().runCommand(cmd);
    }
}