Coverage report

  %line %branch
org.apache.commons.jelly.tags.xml.ParseTag
84% 
95% 

 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.xml;
 17  
 
 18  
 import org.apache.commons.jelly.JellyTagException;
 19  
 import org.apache.commons.jelly.MissingAttributeException;
 20  
 import org.apache.commons.jelly.XMLOutput;
 21  
 import org.apache.commons.logging.Log;
 22  
 import org.apache.commons.logging.LogFactory;
 23  
 import org.dom4j.Document;
 24  
 import org.dom4j.io.SAXReader;
 25  
 
 26  
 /** A tag which parses some XML and defines a variable with the parsed Document.
 27  
   * The XML can either be specified as its body or can be passed in via the
 28  
   * xml property which can be a Reader, InputStream, URL or String URI.
 29  
   *
 30  
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
 31  
   * @version $Revision: 1.7 $
 32  
   */
 33  4
 public class ParseTag extends ParseTagSupport {
 34  
 
 35  
     /** The Log to which logging calls will be made. */
 36  4
     private static final Log log = LogFactory.getLog(ParseTag.class);
 37  
 
 38  
     /** The xml to parse, either a String URI, a Reader or InputStream */
 39  
     private Object xml;
 40  
 
 41  
     // Optional properties not defined in JSTL
 42  
     /** whether XML validation is enabled or disabled */
 43  
     private boolean validate;
 44  
 
 45  39
     public ParseTag() {
 46  39
     }
 47  
 
 48  
     // Tag interface
 49  
     //-------------------------------------------------------------------------
 50  
     public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException {
 51  19
         if (getVar() == null) {
 52  0
             throw new MissingAttributeException("The var attribute cannot be null");
 53  
         }
 54  
 
 55  19
         Document document = getXmlDocument(output);
 56  19
         context.setVariable(getVar(), document);
 57  19
     }
 58  
 
 59  
     // Properties
 60  
     //-------------------------------------------------------------------------
 61  
     /** Gets the source of the XML which is either a String URI, Reader or InputStream */
 62  
     public Object getXml() {
 63  51
         return this.xml;
 64  
     }
 65  
 
 66  
     /** Sets the source of the XML which is either a String URI, a File, Reader or InputStream */
 67  
     public void setXml(Object xml) {
 68  6
         this.xml = xml;
 69  6
     }
 70  
 
 71  
     /** @return whether XML validation is enabled or disabled */
 72  
     public boolean getValidate() {
 73  0
         return validate;
 74  
     }
 75  
 
 76  
     /** Sets whether XML validation is enabled or disabled */
 77  
     public void setValidate(boolean validate) {
 78  0
         this.validate = validate;
 79  0
     }
 80  
 
 81  
 
 82  
     // Implementation methods
 83  
     //-------------------------------------------------------------------------
 84  
 
 85  
     /**
 86  
      * Factory method to create a new SAXReader
 87  
      */
 88  
     protected SAXReader createSAXReader() {
 89  3
         return new SAXReader(validate);
 90  
     }
 91  
 
 92  
     protected Document getXmlDocument(XMLOutput output) throws JellyTagException {
 93  19
         Document document = null;
 94  19
         Object xmlObj = this.getXml();
 95  
 
 96  19
         if (xmlObj == null) {
 97  17
             String text = getText();
 98  17
             if (text != null) {
 99  1
                 document = parseText(text);
 100  
             }
 101  
             else {
 102  16
                 document = parseBody(output);
 103  
             }
 104  
         }
 105  
         else {
 106  2
             document = parse(xmlObj);
 107  
         }
 108  
 
 109  19
         return document;
 110  
     }
 111  
 
 112  
 }

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