Coverage report

  %line %branch
org.apache.commons.jelly.tags.core.ImportTag
68% 
89% 

 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  
 
 17  
 package org.apache.commons.jelly.tags.core;
 18  
 
 19  
 import org.apache.commons.jelly.JellyException;
 20  
 import org.apache.commons.jelly.JellyTagException;
 21  
 import org.apache.commons.jelly.MissingAttributeException;
 22  
 import org.apache.commons.jelly.TagSupport;
 23  
 import org.apache.commons.jelly.XMLOutput;
 24  
 
 25  
 /** Imports another script.
 26  
  *
 27  
  *  <p>
 28  
  *  By default, the imported script does not have access to
 29  
  *  the parent script's variable context.  This behaviour
 30  
  *  may be modified using the <code>inherit</code> attribute.
 31  
  *  </p>
 32  
  *
 33  
  * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a>
 34  
  * @version $Revision: 155420 $
 35  
  */
 36  
 
 37  
 public class ImportTag extends TagSupport {
 38  
 
 39  
     /**
 40  
      * the location of the script being imported, relative to the
 41  
      * current script
 42  
      */
 43  
     private String uri;
 44  
 
 45  
     /**
 46  
      * Whether the imported script has access to the caller's variables
 47  
      */
 48  
     private boolean inherit;
 49  
 
 50  
     /**
 51  
      * The file to be imported. Mutually exclusive with uri.
 52  
      * uri takes precedence.
 53  
      */
 54  
     private String file;
 55  
 
 56  
     /**
 57  
      * Create a new Import tag.
 58  
      */
 59  39
     public ImportTag() {
 60  39
     }
 61  
 
 62  
 
 63  
     // Tag interface
 64  
     //-------------------------------------------------------------------------
 65  
     /**
 66  
      * Perform tag processing
 67  
      * @param output the destination for output
 68  
      * @throws MissingAttributeException if a required attribute is missing
 69  
      * @throws JellyTagException on any other errors
 70  
      */
 71  
     public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException {
 72  39
         if (uri == null && file == class="keyword">null) {
 73  0
             throw new MissingAttributeException( "uri" );
 74  
         }
 75  
 
 76  
         try {
 77  39
             if (uri != null) {
 78  
                 // we need to create a new JellyContext of the URI
 79  
                 // take off the script name from the URL
 80  39
                 context.runScript(uri, output, true, isInherit() );
 81  39
             } else {
 82  0
                 context.runScript(new java.io.File(file), output, true,
 83  
                   isInherit());
 84  
             }
 85  
         }
 86  0
         catch (JellyException e) {
 87  0
             throw new JellyTagException("could not import script",e);
 88  39
         }
 89  39
     }
 90  
 
 91  
     // Properties
 92  
     //-------------------------------------------------------------------------
 93  
 
 94  
     /**
 95  
      * @return whether property inheritence is enabled
 96  
      */
 97  
     public boolean isInherit() {
 98  39
         return inherit;
 99  
     }
 100  
 
 101  
     /**
 102  
      * Sets whether property inheritence is enabled or disabled
 103  
      */
 104  
     public void setInherit(boolean inherit) {
 105  26
         this.inherit = inherit;
 106  26
     }
 107  
 
 108  
     /**
 109  
      * Sets the URI (relative URI or absolute URL) for the script to evaluate.
 110  
      */
 111  
     public void setUri(String uri) {
 112  39
         this.uri = uri;
 113  39
     }
 114  
 
 115  
 
 116  
     /**
 117  
      * Sets the file for the script to evaluate.
 118  
      * @param file The file to set
 119  
      */
 120  
     public void setFile(String file) {
 121  0
         this.file = file;
 122  0
     }
 123  
 
 124  
 }

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