jworksvelocityresult.java

jworks program

/**
 * $RCSfile: JWorksVelocityResult.java,v $
 * $Revision: 1.2 $
 * $Date: 2004/08/26 11:10:26 $
 *
 * Copyright (C) 2002-2004 softme.org (Softme Studio). All rights reserved.
 * ===================================================================
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL COOLSERVLETS INC. OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 */

package org.softme.jworks;

import org.apache.turbine.TurbineConstants;
import org.apache.turbine.services.resources.TurbineResources;
import org.apache.turbine.util.RunData;

import com.opensymphony.webwork.dispatcher.VelocityResult;
import com.opensymphony.xwork.ActionContext;
import com.opensymphony.xwork.ActionInvocation;

/**
 * JWorks 的Velocity Result，将数据转换回Turbine RunData 以及Velocity Context
 * @author <a href="mailto:[e-mail]">boon xiong</a>
 * @version CVS $Revision: 1.2 $ $Date: 2004/08/26 11:10:26 $
 */
public class JWorksVelocityResult extends VelocityResult {

    /**
     * 根据操作的ActionContext返回 Turbine Velocity context, 
     * 设置Turbine的模板路径。
     *
     * @param finalLocation the location of the Velocity template
     * @param invocation    an encapsulation of the action execution state.
     * @throws Exception if an error occurs when creating the Velocity context, loading or executing
     *                   the template or writing output to the servlet response stream.
     * @see com.opensymphony.webwork.dispatcher.WebWorkResultSupport#doExecute(java.lang.String, com.opensymphony.xwork.ActionInvocation)
     */
    public void doExecute(String finalLocation, ActionInvocation invocation) throws Exception {
        // TODO 处理 Turbine RunData 对象。
    	// Turbine 使用 data.getParameters().get("template") 获取 Page 对象
    	
    	RunData data = (RunData) ActionContext.getContext().getContextMap().get(JWorksConstants.JWORKS_RUNDATA);
    	
    	data.setScreenTemplate(finalLocation);
        if (!data.hasScreen()) {
        	// BUGFIXED 设置默认的Screen类以便支持不需要Screen类的VM模板
        	data.setScreen(TurbineResources.getString(TurbineConstants.SCREEN_HOMEPAGE));
        }
        // 清除Action
        data.setAction( null );
        
//      super.doExecute(arg0, arg1);
    }
}