myengine.java

学习tapestry的好书啊,绝对经典实用.

package com.cucu.tapestry.core;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.Tapestry;
import org.apache.tapestry.services.ServiceConstants;
import org.apache.tapestry.engine.BaseEngine;
import org.apache.tapestry.engine.IEngineService;

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

/**
 * Tapestry自定义核心引擎
 *
 * @author 绝情酷哥
 * @version 1.0
 */
public class MyEngine extends BaseEngine {
    private static final Log log = LogFactory.getLog(MyEngine.class);

    /**
     * 下面的方法用于注销用户
     */

    protected void cleanupAfterRequest(IRequestCycle cycle) {
        super.cleanupAfterRequest(cycle);

//		HttpSession session = cycle.getRequestContext().getSession();
//		if(session!=null){
//			session.invalidate();
//		}
    }

    public String getPageLinkUrl(String pageName) {
        IEngineService service = this.getService(Tapestry.PAGE_SERVICE);
        Map parameters = new HashMap();
        parameters.put(ServiceConstants.PAGE, pageName);
        return this.getInfrastructure().getLinkFactory().constructLink(service, false, parameters, true).getURL();
    }

    public String getExternalLinkUrl(String pageName, Object param) {
        IEngineService service = this.getService(Tapestry.PAGE_SERVICE);
        Map parameters = new HashMap();
        parameters.put(ServiceConstants.PAGE, pageName);
        parameters.put(ServiceConstants.PARAMETER, param);
        return this.getInfrastructure().getLinkFactory().constructLink(service, false, parameters, true).getURL();
    }
}