Coverage report

  %line %branch
org.apache.commons.jelly.impl.StaticTagScript
70% 
100% 

 1  
 /*
 2  
  * Copyright 2002,2004 The Apache Software Foundation.
 3  
  *
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 package org.apache.commons.jelly.impl;
 17  
 
 18  
 import java.util.Iterator;
 19  
 import java.util.Map;
 20  
 
 21  
 import org.apache.commons.jelly.DynaTag;
 22  
 import org.apache.commons.jelly.JellyContext;
 23  
 import org.apache.commons.jelly.JellyException;
 24  
 import org.apache.commons.jelly.JellyTagException;
 25  
 import org.apache.commons.jelly.Tag;
 26  
 import org.apache.commons.jelly.TagLibrary;
 27  
 import org.apache.commons.jelly.XMLOutput;
 28  
 import org.apache.commons.jelly.expression.Expression;
 29  
 import org.xml.sax.SAXException;
 30  
 
 31  
 /**
 32  
  * <p><code>StaticTagScript</code> is a script that evaluates a StaticTag, a piece of static XML
 33  
  * though its attributes or element content may contain dynamic expressions.
 34  
  * The first time this tag evaluates, it may have become a dynamic tag, so it will check that
 35  
  * a new dynamic tag has not been generated.</p>
 36  
  *
 37  
  * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
 38  
  * @version $Revision: 1.8 $
 39  
  */
 40  
 public class StaticTagScript extends TagScript {
 41  
 
 42  0
     public StaticTagScript() {
 43  0
     }
 44  
 
 45  
     public StaticTagScript(TagFactory tagFactory) {
 46  40
         super(tagFactory);
 47  40
     }
 48  
 
 49  
 
 50  
     // Script interface
 51  
     //-------------------------------------------------------------------------
 52  
     public void run(JellyContext context, XMLOutput output) throws JellyTagException {
 53  
 
 54  
         try {
 55  26
             startNamespacePrefixes(output);
 56  26
         } catch (SAXException e) {
 57  0
             throw new JellyTagException("could not start namespace prefixes",e);
 58  
         }
 59  
 
 60  26
         Tag tag = null;
 61  
         try {
 62  26
             tag = getTag();
 63  
 
 64  
             // lets see if we have a dynamic tag
 65  26
             if (tag instanceof StaticTag) {
 66  26
                 tag = findDynamicTag(context, (StaticTag) tag);
 67  
             }
 68  
 
 69  26
             setTag(tag);
 70  26
         } catch (JellyException e) {
 71  0
             throw new JellyTagException(e);
 72  
         }
 73  
 
 74  
         try {
 75  26
             if ( tag == null ) {
 76  0
                 return;
 77  
             }
 78  26
             tag.setContext(context);
 79  
 
 80  26
             DynaTag dynaTag = (DynaTag) tag;
 81  
 
 82  
             // ### probably compiling this to 2 arrays might be quicker and smaller
 83  80
             for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
 84  36
                 Map.Entry entry = (Map.Entry) iter.next();
 85  28
                 String name = (String) entry.getKey();
 86  28
                 Expression expression = (Expression) entry.getValue();
 87  
 
 88  28
                 Object value = null;
 89  
 
 90  28
                 if ( Expression.class.isAssignableFrom( dynaTag.getAttributeType(name) ) ) {
 91  0
                     value = expression;
 92  
                 } else {
 93  28
                     value = expression.evaluate(context);
 94  
                 }
 95  
 
 96  28
                 dynaTag.setAttribute(name, value);
 97  
             }
 98  
 
 99  26
             tag.doTag(output);
 100  26
         }
 101  
         catch (JellyTagException e) {
 102  0
             handleException(e);
 103  0
         }
 104  
         catch (RuntimeException e) {
 105  0
             handleException(e);
 106  
         }
 107  
 
 108  
         try {
 109  26
             endNamespacePrefixes(output);
 110  26
         } catch (SAXException e) {
 111  0
             throw new JellyTagException("could not end namespace prefixes",e);
 112  
         }
 113  26
     }
 114  
 
 115  
     /**
 116  
      * Attempts to find a dynamically created tag that has been created since this
 117  
      * script was compiled
 118  
      */
 119  
     protected Tag findDynamicTag(JellyContext context, StaticTag tag) throws JellyException {
 120  
         // lets see if there's a tag library for this URI...
 121  26
         TagLibrary taglib = context.getTagLibrary( tag.getUri() );
 122  26
         if ( taglib != null ) {
 123  12
             Tag newTag = taglib.createTag( tag.getLocalName(), getSaxAttributes() );
 124  12
             if ( newTag != null ) {
 125  0
                 newTag.setParent( tag.getParent() );
 126  0
                 newTag.setBody( tag.getBody() );
 127  0
                 return newTag;
 128  
             }
 129  
         }
 130  26
         return tag;
 131  
     }
 132  
 }

This report is generated by jcoverage, Maven and Maven JCoverage Plugin.