@Nonnull
  private String _getErrorText (@Nonnull final List <PSXPathBoundElement> aBoundContentElements,
                                @Nonnull final Node aSourceNode) throws SchematronValidationException
  {
    final StringBuilder aSB = new StringBuilder ();

    for (final PSXPathBoundElement aBoundElement : aBoundContentElements)
    {
      final Object aContent = aBoundElement.getElement ();
      if (aContent instanceof String)
        aSB.append ((String) aContent);
      else
        if (aContent instanceof PSName)
        {
          final PSName aName = (PSName) aContent;
          if (aName.hasPath ())
          {
            // XPath present
            try
            {
              aSB.append ((String) XPathEvaluationHelper.evaluate (aBoundElement.getBoundExpression (),
                                                                   aSourceNode,
                                                                   XPathConstants.STRING,
                                                                   m_sBaseURI));
            }
            catch (final XPathExpressionException ex)
            {
              _error (aName,
                      "Failed to evaluate XPath expression to a string: '" + aBoundElement.getExpression () + "'",
                      ex.getCause () != null ? ex.getCause () : ex);
              // Append the path so that something is present in the output
              aSB.append (aName.getPath ());
            }
          }
          else
          {
            // No XPath present
            aSB.append (aSourceNode.getNodeName ());
          }
        }
        else
          if (aContent instanceof PSValueOf)
          {
            final PSValueOf aValueOf = (PSValueOf) aContent;
            try
            {
              aSB.append ((String) XPathEvaluationHelper.evaluate (aBoundElement.getBoundExpression (),
                                                                   aSourceNode,
                                                                   XPathConstants.STRING,
                                                                   m_sBaseURI));
            }
            catch (final XPathExpressionException ex)
            {
              _error (aValueOf,
                      "Failed to evaluate XPath expression to a string: '" + aBoundElement.getExpression () + "'",
                      ex);
              // Append the path so that something is present in the output
              aSB.append (aValueOf.getSelect ());
            }
          }
          else
            if (aContent instanceof PSEmph)
              aSB.append (((PSEmph) aContent).getAsText ());
            else
              if (aContent instanceof PSDir)
                aSB.append (((PSDir) aContent).getAsText ());
              else
                if (aContent instanceof PSSpan)
                  aSB.append (((PSSpan) aContent).getAsText ());
                else
                  throw new SchematronValidationException ("Unsupported assert/report content element: " + aContent);
    }
    return aSB.toString ();
  }
@Nonnull
  private String _getErrorText (@Nonnull final List <PSXPathBoundElement> aBoundContentElements,
                                @Nonnull final Node aSourceNode) throws SchematronValidationException
  {
    final StringBuilder aSB = new StringBuilder ();

    for (final PSXPathBoundElement aBoundElement : aBoundContentElements)
    {
      final Object aContent = aBoundElement.getElement ();
      if (aContent instanceof String)
        aSB.append ((String) aContent);
      else
        if (aContent instanceof PSName)
        {
          final PSName aName = (PSName) aContent;
          if (aName.hasPath ())
          {
            
            try
            {
              aSB.append ((String) XPathEvaluationHelper.evaluate (aBoundElement.getBoundExpression (),
                                                                   aSourceNode,
                                                                   XPathConstants.STRING,
                                                                   m_sBaseURI));
            }
            catch (final XPathExpressionException ex)
            {
              _error (aName,
                      "Failed to evaluate XPath expression to a string: '" + aBoundElement.getExpression () + "'",
                      ex.getCause () != null ? ex.getCause () : ex);
              
              aSB.append (aName.getPath ());
            }
          }
          else
          {
            
            aSB.append (aSourceNode.getNodeName ());
          }
        }
        else
          if (aContent instanceof PSValueOf)
          {
            final PSValueOf aValueOf = (PSValueOf) aContent;
            try
            {
              aSB.append ((String) XPathEvaluationHelper.evaluate (aBoundElement.getBoundExpression (),
                                                                   aSourceNode,
                                                                   XPathConstants.STRING,
                                                                   m_sBaseURI));
            }
            catch (final XPathExpressionException ex)
            {
              _error (aValueOf,
                      "Failed to evaluate XPath expression to a string: '" + aBoundElement.getExpression () + "'",
                      ex);
              
              aSB.append (aValueOf.getSelect ());
            }
          }
          else
            if (aContent instanceof PSEmph)
              aSB.append (((PSEmph) aContent).getAsText ());
            else
              if (aContent instanceof PSDir)
                aSB.append (((PSDir) aContent).getAsText ());
              else
                if (aContent instanceof PSSpan)
                  aSB.append (((PSSpan) aContent).getAsText ());
                else
                  throw new SchematronValidationException ("Unsupported assert/report content element: " + aContent);
    }
    return aSB.toString ();
  }
@ Nonnull private String _getErrorText ( @ Nonnull final List < PSXPathBoundElement > aBoundContentElements , @ Nonnull final Node aSourceNode ) throws SchematronValidationException { final StringBuilder aSB = new StringBuilder ( ) ; for ( final PSXPathBoundElement aBoundElement : aBoundContentElements ) { final Object aContent = aBoundElement . getElement ( ) ; if ( aContent instanceof String ) aSB . append ( ( String ) aContent ) ; else if ( aContent instanceof PSName ) { final PSName aName = ( PSName ) aContent ; if ( aName . hasPath ( ) ) { // XPath present try { aSB . append ( ( String ) XPathEvaluationHelper . evaluate ( aBoundElement . getBoundExpression ( ) , aSourceNode , XPathConstants . STRING , m_sBaseURI ) ) ; } catch ( final XPathExpressionException ex ) { _error ( aName , "Failed to evaluate XPath expression to a string: '" + aBoundElement . getExpression ( ) + "'" , ex . getCause ( ) != null ? ex . getCause ( ) : ex ) ; // Append the path so that something is present in the output aSB . append ( aName . getPath ( ) ) ; } } else { // No XPath present aSB . append ( aSourceNode . getNodeName ( ) ) ; } } else if ( aContent instanceof PSValueOf ) { final PSValueOf aValueOf = ( PSValueOf ) aContent ; try { aSB . append ( ( String ) XPathEvaluationHelper . evaluate ( aBoundElement . getBoundExpression ( ) , aSourceNode , XPathConstants . STRING , m_sBaseURI ) ) ; } catch ( final XPathExpressionException ex ) { _error ( aValueOf , "Failed to evaluate XPath expression to a string: '" + aBoundElement . getExpression ( ) + "'" , ex ) ; // Append the path so that something is present in the output aSB . append ( aValueOf . getSelect ( ) ) ; } } else if ( aContent instanceof PSEmph ) aSB . append ( ( ( PSEmph ) aContent ) . getAsText ( ) ) ; else if ( aContent instanceof PSDir ) aSB . append ( ( ( PSDir ) aContent ) . getAsText ( ) ) ; else if ( aContent instanceof PSSpan ) aSB . append ( ( ( PSSpan ) aContent ) . getAsText ( ) ) ; else throw new SchematronValidationException ( "Unsupported assert/report content element: " + aContent ) ; } return aSB . toString ( ) ; }
Get the error text from an assert or report element.

@param aBoundContentElements
The list of bound elements to be evaluated.
@param aSourceNode
The XML node of the document currently validated.
@return A non-<code>null</code> String
@throws SchematronValidationException
In case evaluating an XPath expression fails.
Get the error text from an assert or report element .