io.vertx.core.spi.launcher.DefaultCommandFactory Maven / Gradle / Ivy
/*
* Copyright (c) 2011-2015 The original author or authors
* ------------------------------------------------------
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package io.vertx.core.spi.launcher;
import io.vertx.core.cli.CLI;
import io.vertx.core.cli.CommandLine;
import io.vertx.core.cli.annotations.CLIConfigurator;
import io.vertx.core.cli.impl.ReflectionUtils;
/**
* Default implementation of {@link CommandFactory}. This implementation defines the {@link CLI} from the
* given {@link Command} implementation (by reading the annotation). Then, {@link Command} instance are
* created by calling an empty constructor on the given {@link Command} implementation.
*
* @author Clement Escoffier
*/
public class DefaultCommandFactory implements CommandFactory {
private final Class clazz;
/**
* Creates a new {@link CommandFactory}.
*
* @param clazz the {@link Command} implementation
*/
public DefaultCommandFactory(Class clazz) {
this.clazz = clazz;
}
/**
* @return a new instance of the command by invoking the default constructor of the given class.
*/
@Override
public C create(CommandLine cl) {
C c = ReflectionUtils.newInstance(clazz);
CLIConfigurator.inject(cl, c);
return c;
}
/**
* @return the {@link CLI} instance by reading the annotation.
*/
@Override
public CLI define() {
return CLIConfigurator.define(clazz);
}
}