actiondefinemanagerimpl.java

类似struts2的mvc框架

package pp.mvc.core.impl;

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

import javax.servlet.http.HttpServletRequest;

import pp.mvc.core.ActionDefineManager;
import pp.mvc.core.XmlProcesser;
import pp.mvc.domain.ActionDefine;
import pxb.ioc.Inject;
import pxb.ioc.LifeCycle;

/**
 * 
 * @author panhuizi
 * 
 */

public class ActionDefineManagerImpl implements ActionDefineManager, LifeCycle {

	XmlProcesser xmlProcesser;

	Map<String, ActionDefine> map = new HashMap<String, ActionDefine>();

	public ActionDefine getActionDefine(HttpServletRequest request) {
		String servletPath = request.getServletPath();
		if (servletPath.endsWith(".action")) {
			String s = servletPath.substring(0, servletPath.lastIndexOf("."));
			ActionDefine ad = map.get(s);
			if (ad == null) {
				String namespace = servletPath.substring(0, servletPath
						.lastIndexOf("/"));
				if (namespace.equals("")) {
					namespace = "/";
				}
				String actionname = servletPath.substring(servletPath
						.lastIndexOf("/") + 1, servletPath.lastIndexOf("."));
				throw new RuntimeException("在namespace为[" + namespace
						+ "]中不存在action名为[" + actionname + "]的映射");
			}
			return ad;
		}

		return null;
	}

	public void destroy() throws Exception {

	}

	public void init() throws Exception {
		map = xmlProcesser.getAllActionDefineMapsByPpXmlFile();

	}

	@Inject
	public void setXmlProcesser(XmlProcesser xmlProcesser) {
		this.xmlProcesser = xmlProcesser;
	}

}