webcontextservice.java

一个实用工具类

/*
 * Copyright (C) butor.com. All rights reserved.
 *
 * This software is published under the terms of the GNU Library General
 * Public License (GNU LGPL), a copy of which has been included with this
 * distribution in the LICENSE.txt file. 
 */

package org.butor.web.context;

import org.butor.fwService.FwService;
import org.butor.fwService.IFwServiceImpl;

/**
 * 
 * @author Aiman SAWAN
 */
public abstract class WebContextService {

	protected static FwService fwService = new FwService(WebContextService.class);

	public static boolean isImplCompatible(IFwServiceImpl impl) {
		return (impl instanceof IWebContextService); 
	}
	public static String getServiceName() {
		return WebContextService.class.getName();
	}
	public static void registerImpl(IFwServiceImpl impl) {
		fwService.registerImpl(impl);
	}
	public static void unregisterImpl(IFwServiceImpl impl) {
		fwService.unregisterImpl(impl);
	}
	protected static IWebContextService getImpl(String calledMethod) {
		return (IWebContextService)fwService.getImpl(calledMethod);
	}

	/**
	 * get the context related to the working thread
	 */
	public static void releaseContext() {
		IWebContextService impl = getImpl("releaseContext()");
		if (null != impl) {
			impl.releaseContext();
		}
	}
	/**
	 * release the context related to the working thread
	 * @return IContext.
	 */
	public static IWebContext getContext() {
		IWebContextService impl = getImpl("getContext()");
		if (null != impl) {
			return impl.getContext();
		}
		return null;
	}
	/**
	 * set the context related to the working thread
	 */
	public static void setContext(IWebContext context) {
		IWebContextService impl = getImpl("setContext()");
		if (null != impl) {
			impl.setContext(context);
		}
	}
}