Coverage Report - org.apache.turbine.util.template.TemplateNavigation
 
Classes in this File Line Coverage Branch Coverage Complexity
TemplateNavigation
19%
5/26
0%
0/6
3
 
 1  
 package org.apache.turbine.util.template;
 2  
 
 3  
 
 4  
 /*
 5  
  * Licensed to the Apache Software Foundation (ASF) under one
 6  
  * or more contributor license agreements.  See the NOTICE file
 7  
  * distributed with this work for additional information
 8  
  * regarding copyright ownership.  The ASF licenses this file
 9  
  * to you under the Apache License, Version 2.0 (the
 10  
  * "License"); you may not use this file except in compliance
 11  
  * with the License.  You may obtain a copy of the License at
 12  
  *
 13  
  *   http://www.apache.org/licenses/LICENSE-2.0
 14  
  *
 15  
  * Unless required by applicable law or agreed to in writing,
 16  
  * software distributed under the License is distributed on an
 17  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 18  
  * KIND, either express or implied.  See the License for the
 19  
  * specific language governing permissions and limitations
 20  
  * under the License.
 21  
  */
 22  
 
 23  
 
 24  
 import org.apache.commons.logging.Log;
 25  
 import org.apache.commons.logging.LogFactory;
 26  
 
 27  
 import org.apache.ecs.ConcreteElement;
 28  
 
 29  
 import org.apache.turbine.modules.NavigationLoader;
 30  
 
 31  
 import org.apache.turbine.services.template.TurbineTemplate;
 32  
 
 33  
 import org.apache.turbine.util.RunData;
 34  
 
 35  
 /**
 36  
  * Returns output of a Navigation module.  An instance of this is
 37  
  * placed in the WebMacro context by the WebMacroSiteLayout.  This
 38  
  * allows template authors to set the navigation template they'd like
 39  
  * to place in their templates.  Here's how it's used in a
 40  
  * template:
 41  
  *
 42  
  * <p><code>
 43  
  * $navigation.setTemplate("admin_navigation.wm")
 44  
  * </code>
 45  
  *
 46  
  * @author <a href="mbryson@mont.mindspring.com">Dave Bryson</a>
 47  
  * @version $Id: TemplateNavigation.java 615328 2008-01-25 20:25:05Z tv $
 48  
  */
 49  
 public class TemplateNavigation
 50  
 {
 51  
     /** Logging */
 52  2
     private static Log log = LogFactory.getLog(TemplateNavigation.class);
 53  
 
 54  
     /* The RunData object. */
 55  
     private RunData data;
 56  
 
 57  
     /* The name of the navigation template. */
 58  2
     private String template = null;
 59  
 
 60  
     /**
 61  
      * Constructor
 62  
      *
 63  
      * @param data A Turbine RunData object.
 64  
      */
 65  
     public TemplateNavigation(RunData data)
 66  2
     {
 67  2
         this.data = data;
 68  2
     }
 69  
 
 70  
     /**
 71  
      * Set the template.
 72  
      *
 73  
      * @param template A String with the name of the navigation
 74  
      * template.
 75  
      * @return A TemplateNavigation (self).
 76  
      */
 77  
     public TemplateNavigation setTemplate(String template)
 78  
     {
 79  0
         log.debug("setTemplate(" + template + ")");
 80  0
         this.template = template;
 81  0
         return this;
 82  
     }
 83  
 
 84  
     /**
 85  
      * Builds the output of the navigation template.
 86  
      *
 87  
      * @return A String.
 88  
      */
 89  
     public String toString()
 90  
     {
 91  0
         String module = null;
 92  0
         String returnValue = null;
 93  
 
 94  
         try
 95  
         {
 96  0
             if (template == null)
 97  
             {
 98  0
                 returnValue = "Navigation Template is null (Might be unset)";
 99  0
                 throw new Exception(returnValue);
 100  
             }
 101  
 
 102  0
             data.getTemplateInfo().setNavigationTemplate(template);
 103  0
             module = TurbineTemplate.getNavigationName(template);
 104  
 
 105  0
             if (module == null)
 106  
             {
 107  0
                 returnValue = "Template Service returned null for Navigation Template " + template;
 108  0
                 throw new Exception(returnValue);
 109  
             }
 110  
 
 111  0
             ConcreteElement results =
 112  
                     NavigationLoader.getInstance().eval(data, module);
 113  0
             returnValue = results.toString();
 114  
         }
 115  0
         catch (Exception e)
 116  
         {
 117  0
             if (returnValue == null)
 118  
             {
 119  0
                 returnValue = "Error processing navigation template: "
 120  
                         + template + ", using module: " + module;
 121  
             }
 122  0
             log.error(returnValue, e);
 123  0
         }
 124  
 
 125  0
         return returnValue;
 126  
     }
 127  
 }