defaultcontainerwrapper.java

Java/J2EE框架Jdon-Framework系统的Sample

/**
 * Copyright 2005 Jdon.com
 * 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 com.jdon.controller.container;

import org.picocontainer.MutablePicoContainer;
import com.jdon.util.Debug;
import org.picocontainer.Parameter;

import java.util.List;
import org.picocontainer.defaults.DefaultPicoContainer;
import com.jdon.controller.ContainerWrapper;




/**
 * 以Picocontainer为容器基础组件
 *
 * <p>Copyright: Jdon.com Copyright (c) 2005</p>
 * <p></p>
 * @author banq
 * @version JdonFramework 2005 v1.0
 */
public class DefaultContainerWrapper implements ContainerWrapper {
  public final static String module = DefaultContainerWrapper.class.getName();

  private MutablePicoContainer container;

  public DefaultContainerWrapper(MutablePicoContainer container) {
    this.container = container;
  }

  public void registerChild(String name) {
    try {
      MutablePicoContainer child = new DefaultPicoContainer(container);
      register(name, child);
    } catch (Exception ex) {
      Debug.logWarning(" registe error: " + name, module);
    }
  }

  public void register(String name, Class className) {
    try {
      container.registerComponentImplementation(name, className);
    } catch (Exception ex) {
      Debug.logWarning(" registe error: " + name,  module);
    }
  }

  public void register(String name, Class className, Parameter[] parameters) {
    try {
      container.registerComponentImplementation(name, className, parameters);
    } catch (Exception ex) {
      Debug.logWarning(" registe error: " + name, module);
    }

  }

  public void register(String name, Object instance) {
    try {
      container.registerComponentInstance(name, instance);
    } catch (Exception ex) {
      Debug.logWarning(" registe error: " + name, module);
    }

  }

  public void start() {
    container.start();
  }

  public void stop() {
    container.stop();
    container.dispose();
  }

  public List getAllInstances() {
    return container.getComponentInstances();
  }

  public Object lookup(String name) {
    Object object = container.getComponentInstance(name);
    if (object == null)
      Debug.logWarning("Not find the component in container :" + name, module);
    return object;
  }

  public ContainerWrapper getChild(String name) {
    MutablePicoContainer child = (MutablePicoContainer)lookup(name);
    return new DefaultContainerWrapper(child);
  }


}