Clover coverage report - Code Coverage for tapestry release 3.1-alpha-1
Coverage timestamp: Mon Feb 21 2005 09:16:14 EST
file stats: LOC: 166   Methods: 6
NCLOC: 92   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
DirectService.java 100% 100% 100% 100%
coverage
 1   
 // Copyright 2004, 2005 The Apache Software Foundation
 2   
 //
 3   
 // Licensed under the Apache License, Version 2.0 (the "License");
 4   
 // you may not use this file except in compliance with the License.
 5   
 // You may obtain a copy of the License at
 6   
 //
 7   
 //     http://www.apache.org/licenses/LICENSE-2.0
 8   
 //
 9   
 // Unless required by applicable law or agreed to in writing, software
 10   
 // distributed under the License is distributed on an "AS IS" BASIS,
 11   
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12   
 // See the License for the specific language governing permissions and
 13   
 // limitations under the License.
 14   
 
 15   
 package org.apache.tapestry.engine;
 16   
 
 17   
 import java.io.IOException;
 18   
 import java.util.HashMap;
 19   
 import java.util.Map;
 20   
 
 21   
 import javax.servlet.ServletException;
 22   
 import javax.servlet.http.HttpServletRequest;
 23   
 import javax.servlet.http.HttpSession;
 24   
 
 25   
 import org.apache.hivemind.ApplicationRuntimeException;
 26   
 import org.apache.hivemind.util.Defense;
 27   
 import org.apache.tapestry.IComponent;
 28   
 import org.apache.tapestry.IDirect;
 29   
 import org.apache.tapestry.IPage;
 30   
 import org.apache.tapestry.IRequestCycle;
 31   
 import org.apache.tapestry.StaleSessionException;
 32   
 import org.apache.tapestry.Tapestry;
 33   
 import org.apache.tapestry.request.ResponseOutputStream;
 34   
 import org.apache.tapestry.services.LinkFactory;
 35   
 import org.apache.tapestry.services.ResponseRenderer;
 36   
 import org.apache.tapestry.services.ServiceConstants;
 37   
 
 38   
 /**
 39   
  * Implementation of the direct service, which encodes the page and component id in the service
 40   
  * context, and passes application-defined parameters as well.
 41   
  * 
 42   
  * @author Howard Lewis Ship
 43   
  * @since 1.0.9
 44   
  */
 45   
 
 46   
 public class DirectService implements IEngineService
 47   
 {
 48   
     /** @since 3.1 */
 49   
     private ResponseRenderer _responseRenderer;
 50   
 
 51   
     /** @since 3.1 */
 52   
     private LinkFactory _linkFactory;
 53   
 
 54   
     /** @since 3.1 */
 55   
     private HttpServletRequest _request;
 56   
 
 57  104
     public ILink getLink(IRequestCycle cycle, Object parameter)
 58   
     {
 59  104
         Defense.isAssignable(parameter, DirectServiceParameter.class, "parameter");
 60   
 
 61  104
         DirectServiceParameter dsp = (DirectServiceParameter) parameter;
 62   
 
 63  104
         IComponent component = dsp.getDirect();
 64   
 
 65   
         // New since 1.0.1, we use the component to determine
 66   
         // the page, not the cycle. Through the use of tricky
 67   
         // things such as Block/InsertBlock, it is possible
 68   
         // that a component from a page different than
 69   
         // the response page will render.
 70   
         // In 1.0.6, we start to record *both* the render page
 71   
         // and the component page (if different).
 72   
 
 73  104
         IPage activePage = cycle.getPage();
 74  104
         IPage componentPage = component.getPage();
 75   
 
 76  104
         Map parameters = new HashMap();
 77   
 
 78  104
         boolean stateful = _request.getSession(false) != null;
 79   
 
 80  104
         parameters.put(ServiceConstants.SERVICE, Tapestry.DIRECT_SERVICE);
 81  104
         parameters.put(ServiceConstants.PAGE, activePage.getPageName());
 82  104
         parameters.put(ServiceConstants.COMPONENT, component.getIdPath());
 83  104
         parameters.put(ServiceConstants.CONTAINER, componentPage == activePage ? null
 84   
                 : componentPage.getPageName());
 85  104
         parameters.put(ServiceConstants.SESSION, stateful ? "T" : null);
 86  104
         parameters.put(ServiceConstants.PARAMETER, dsp.getServiceParameters());
 87   
 
 88  104
         return _linkFactory.constructLink(cycle, parameters, true);
 89   
     }
 90   
 
 91  76
     public void service(IRequestCycle cycle, ResponseOutputStream output) throws ServletException,
 92   
             IOException
 93   
     {
 94  76
         String componentId = cycle.getParameter(ServiceConstants.COMPONENT);
 95  76
         String componentPageName = cycle.getParameter(ServiceConstants.CONTAINER);
 96  76
         String activePageName = cycle.getParameter(ServiceConstants.PAGE);
 97  76
         boolean activeSession = cycle.getParameter(ServiceConstants.SESSION) != null;
 98   
 
 99  76
         IPage page = cycle.getPage(activePageName);
 100   
 
 101  76
         cycle.activate(page);
 102   
 
 103  76
         IPage componentPage = componentPageName == null ? page : cycle.getPage(componentPageName);
 104   
 
 105  76
         IComponent component = componentPage.getNestedComponent(componentId);
 106   
 
 107  76
         IDirect direct = null;
 108   
 
 109  76
         try
 110   
         {
 111  76
             direct = (IDirect) component;
 112   
         }
 113   
         catch (ClassCastException ex)
 114   
         {
 115  1
             throw new ApplicationRuntimeException(EngineMessages.wrongComponentType(
 116   
                     component,
 117   
                     IDirect.class), component, null, ex);
 118   
         }
 119   
 
 120   
         // Check for a StaleSession only when the session was stateful when
 121   
         // the link was created.
 122   
 
 123  75
         if (activeSession && direct.isStateful())
 124   
         {
 125  19
             HttpSession session = _request.getSession();
 126   
 
 127  19
             if (session == null || session.isNew())
 128  5
                 throw new StaleSessionException(EngineMessages.requestStateSession(direct),
 129   
                         componentPage);
 130   
         }
 131   
 
 132  70
         Object[] parameters = _linkFactory.extractServiceParameters(cycle);
 133   
 
 134  70
         cycle.setServiceParameters(parameters);
 135   
 
 136  70
         direct.trigger(cycle);
 137   
 
 138   
         // Render the response. This will be the active page
 139   
         // unless the direct component (or its delegate) changes it.
 140   
 
 141  53
         _responseRenderer.renderResponse(cycle, output);
 142   
     }
 143   
 
 144  194
     public String getName()
 145   
     {
 146  194
         return Tapestry.DIRECT_SERVICE;
 147   
     }
 148   
 
 149   
     /** @since 3.1 */
 150  55
     public void setResponseRenderer(ResponseRenderer responseRenderer)
 151   
     {
 152  55
         _responseRenderer = responseRenderer;
 153   
     }
 154   
 
 155   
     /** @since 3.1 */
 156  58
     public void setLinkFactory(LinkFactory linkFactory)
 157   
     {
 158  58
         _linkFactory = linkFactory;
 159   
     }
 160   
 
 161   
     /** @since 3.1 */
 162  57
     public void setRequest(HttpServletRequest request)
 163   
     {
 164  57
         _request = request;
 165   
     }
 166   
 }