/*
 *
 * Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under
 * one or more contributor license agreements (see COPYRIGHT for details).
 * The CA licenses this file to you under the GNU Affero General Public
 * License version 3, (the "License"); you may not use this file except in
 * compliance with the License. This file is part of kune.
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package cc.kune.common.client.actions.ui;

import java.util.HashMap;
import java.util.Map;

import com.google.inject.Provider;

// TODO: Auto-generated Javadoc
/**
 * The Class DefaultGuiProvider.
 *
 * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado)
 */
public class DefaultGuiProvider implements GuiProvider {

  /** The map. */
  private final Map<Class<?>, Provider<?>> map;

  /**
   * Instantiates a new default gui provider.
   */
  public DefaultGuiProvider() {
    map = new HashMap<Class<?>, Provider<?>>();
  }

  /*
   * (non-Javadoc)
   * 
   * @see cc.kune.common.client.actions.ui.GuiProvider#get(java.lang.Class)
   */
  @Override
  public <T> GuiBinding get(final Class<T> classType) {
    // If this return a NPE is because any GuiProvider has register bindings
    final Provider<?> provider = map.get(classType);
    assert provider != null : "We don't have registered a gui provider for this descriptor type";
    return (GuiBinding) provider.get();
  }

  /*
   * (non-Javadoc)
   * 
   * @see cc.kune.common.client.actions.ui.GuiProvider#register(java.lang.Class,
   * com.google.inject.Provider)
   */
  @Override
  public <T, Z> void register(final Class<T> classType, final Provider<Z> binding) {
    map.put(classType, binding);
  }

  @Override
  public int size() {
    return map.size();
  }
}