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/*
 * Copyright 2014 Objectos, Fábrica de Software LTDA.
 *
 * 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 br.com.objectos.rio;

import java.util.Map;

import com.google.common.base.Optional;
import com.google.common.collect.Maps;

/**
 * @author [email protected] (Marcio Endo)
 */
public abstract class CommandModule {

  private final Map> executableMap = Maps.newHashMap();

  protected abstract void configure();

  protected ExecuteCommand execute(String command) {
    return new ExecuteCommand(command);
  }

  protected Optional> get(String name) {
    Class maybeCommand = executableMap.get(name);
    return Optional.> fromNullable(maybeCommand);
  }

  protected CommandModule init() {
    executableMap.clear();
    configure();
    return this;
  }

  protected class ExecuteCommand {

    private final String command;

    public ExecuteCommand(String command) {
      this.command = command;
    }

    public void with(Class clazz) {
      executableMap.put(command, clazz);
    }

  }

}