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Posted to dev@commons.apache.org by js...@apache.org on 2002/08/15 09:55:46 UTC

cvs commit: jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/validate AssertValidTag.java

jstrachan    2002/08/15 00:55:46

  Added:       jelly/src/java/org/apache/commons/jelly/tags/validate
                        AssertValidTag.java
  Log:
  Added an <assertValid> tag which can be used in JellyUnit scripts to assert that a section of XML is valid according to some XML Schema, RelaxNG, Relax or TREX. 
  DTDs should work too, as MSV supports that too I think, but isn't quite working yet.
  
  Revision  Changes    Path
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/validate/AssertValidTag.java
  
  Index: AssertValidTag.java
  ===================================================================
  /*
   * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/taglibs/beanshell/src/java/org/apache/commons/jelly/tags/beanshell/BeanShellExpressionFactory.java,v 1.1 2002/05/21 07:58:55 jstrachan Exp $
   * $Revision: 1.1 $
   * $Date: 2002/05/21 07:58:55 $
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   * 
   * $Id: BeanShellExpressionFactory.java,v 1.1 2002/05/21 07:58:55 jstrachan Exp $
   */
  package org.apache.commons.jelly.tags.validate;
  
  import junit.framework.AssertionFailedError;
  
  import org.apache.commons.jelly.XMLOutput;
  
  import org.xml.sax.ErrorHandler;
  import org.xml.sax.SAXException;
  import org.xml.sax.SAXParseException;
  import org.xml.sax.helpers.AttributesImpl;
  
  /** 
   * This tag performs an assertion that the tags body contains XML
   * which matches a givem schema validation. This tag is used with 
   * JellyUnit to implement an assertion.
   *
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
   * @version $Revision: 1.1 $
   */
  public class AssertValidTag extends ValidateTag {
  
      private StringBuffer buffer = new StringBuffer();
  
  
  /*        
      public AssertValidTag() {
          setErrorHandler(
              new ErrorHandler() {
                  public void error(SAXParseException exception) throws SAXException {
                      outputException(output, "error", exception);
                  }
                  
                  public void fatalError(SAXParseException exception) throws SAXException {
                      outputException(output, "fatalError", exception);
                  }
                  
                  public void warning(SAXParseException exception) throws SAXException {
                      outputException(output, "warning", exception);
                  }
              }
          );
      }
  */    
      // Tag interface
      //-------------------------------------------------------------------------                    
      public void doTag(final XMLOutput output) throws Exception {    
          buffer.setLength(0);
          super.doTag(output);
      }
      
      // Implementation methods
      //-------------------------------------------------------------------------                    
      
      /**
       * Processes whether or not the document is valid.
       * Derived classes can overload this method to do different things, such 
       * as to throw assertion exceptions etc.
       */    
      protected void handleValid(boolean valid) throws Exception {
          super.handleValid(valid);
          
          if ( ! valid ) {
              String message = buffer.toString();
              throw new AssertionFailedError( "The XML is not valid according to the schema: " + message );
          }
      }
      
      /**
       * Outputs the given validation exception as XML to the output
       */
      protected void outputException(XMLOutput output, String name, SAXParseException e) throws SAXException {
          buffer.append( name );
          buffer.append( " : line: " );
          buffer.append( e.getLineNumber() );
          buffer.append( " column: " );
          buffer.append( e.getColumnNumber() );
          buffer.append( " message: " );
          buffer.append( e.getMessage() );
          buffer.append( '\n' );
      }
      
  }
  
  
  

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