Coverage report

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org.apache.commons.jelly.tags.bsf.ScriptTag
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 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.tags.bsf;
 17  
 
 18  
 import java.util.Iterator;
 19  
 
 20  
 import org.apache.commons.jelly.JellyTagException;
 21  
 import org.apache.commons.jelly.LocationAware;
 22  
 import org.apache.commons.jelly.MissingAttributeException;
 23  
 import org.apache.commons.jelly.TagSupport;
 24  
 import org.apache.commons.jelly.XMLOutput;
 25  
 import org.apache.commons.logging.Log;
 26  
 import org.apache.commons.logging.LogFactory;
 27  
 
 28  
 import org.apache.bsf.BSFEngine;
 29  
 import org.apache.bsf.BSFManager;
 30  
 import org.apache.bsf.BSFException;
 31  
 
 32  
 /**
 33  
  * A tag which evaluates its body using the current scripting language
 34  
  *
 35  
  * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
 36  
  * @version $Revision: 1.5 $
 37  
  */
 38  0
 public class ScriptTag extends TagSupport implements LocationAware {
 39  
 
 40  
     /** The Log to which logging calls will be made. */
 41  0
     private static final Log log = LogFactory.getLog(ScriptTag.class.getName() + ".evaluating");
 42  
 
 43  
     private BSFEngine engine;
 44  
     private BSFManager manager;
 45  
     private String elementName;
 46  
     private String fileName;
 47  
     private int columnNumber;
 48  
     private int lineNumber;
 49  
 
 50  0
     public ScriptTag(BSFEngine engine, BSFManager manager) {
 51  0
         this.engine = engine;
 52  0
         this.manager = manager;
 53  0
     }
 54  
 
 55  
     // Tag interface
 56  
     //-------------------------------------------------------------------------
 57  
     public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException {
 58  0
         String text = getBodyText();
 59  
 
 60  0
         log.debug(text);
 61  
 
 62  
         // XXXX: unfortunately we must sychronize evaluations
 63  
         // so that we can swizzle in the context.
 64  
         // maybe we could create an expression from a context
 65  
         // (and so create a BSFManager for a context)
 66  0
         synchronized (getRegistry()) {
 67  0
             getRegistry().setJellyContext(context);
 68  
 
 69  
             try {
 70  
                 // XXXX: hack - there must be a better way!!!
 71  0
                 for ( Iterator iter = context.getVariableNames(); iter.hasNext(); ) {
 72  0
                     String name = (String) iter.next();
 73  0
                     Object value = context.getVariable( name );
 74  0
                     manager.declareBean( name, value, value.getClass() );
 75  
                 }
 76  0
                 engine.exec(fileName, lineNumber, columnNumber, text);
 77  0
             }
 78  
             catch (BSFException e) {
 79  0
                 throw new JellyTagException("Error occurred with script: " + e, e);
 80  
             }
 81  0
         }
 82  0
     }
 83  
 
 84  
     // Properties
 85  
     //-------------------------------------------------------------------------
 86  
     /**
 87  
      * @return int
 88  
      */
 89  
     public int getColumnNumber() {
 90  0
         return columnNumber;
 91  
     }
 92  
 
 93  
     /**
 94  
      * @return String
 95  
      */
 96  
     public String getElementName() {
 97  0
         return elementName;
 98  
     }
 99  
 
 100  
     /**
 101  
      * @return BSFEngine
 102  
      */
 103  
     public BSFEngine getEngine() {
 104  0
         return engine;
 105  
     }
 106  
 
 107  
     /**
 108  
      * @return String
 109  
      */
 110  
     public String getFileName() {
 111  0
         return fileName;
 112  
     }
 113  
 
 114  
     /**
 115  
      * @return int
 116  
      */
 117  
     public int getLineNumber() {
 118  0
         return lineNumber;
 119  
     }
 120  
 
 121  
     /**
 122  
      * Sets the columnNumber.
 123  
      * @param columnNumber The columnNumber to set
 124  
      */
 125  
     public void setColumnNumber(int columnNumber) {
 126  0
         this.columnNumber = columnNumber;
 127  0
     }
 128  
 
 129  
     /**
 130  
      * Sets the elementName.
 131  
      * @param elementName The elementName to set
 132  
      */
 133  
     public void setElementName(String elementName) {
 134  0
         this.elementName = elementName;
 135  0
     }
 136  
 
 137  
     /**
 138  
      * Sets the engine.
 139  
      * @param engine The engine to set
 140  
      */
 141  
     public void setEngine(BSFEngine engine) {
 142  0
         this.engine = engine;
 143  0
     }
 144  
 
 145  
     /**
 146  
      * Sets the fileName.
 147  
      * @param fileName The fileName to set
 148  
      */
 149  
     public void setFileName(String fileName) {
 150  0
         this.fileName = fileName;
 151  0
     }
 152  
 
 153  
     /**
 154  
      * Sets the lineNumber.
 155  
      * @param lineNumber The lineNumber to set
 156  
      */
 157  
     public void setLineNumber(int lineNumber) {
 158  0
         this.lineNumber = lineNumber;
 159  0
     }
 160  
 
 161  
     private JellyContextRegistry getRegistry()
 162  
     {
 163  0
         return (JellyContextRegistry) this.manager.getObjectRegistry();
 164  
     }
 165  
 }

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