Examples with Log4jEntityResolver org.apache.log4j.xml.Log4jEntityResolver used on opensource projects

Example 1 with Log4jEntityResolver

use of org.apache.log4j.xml.Log4jEntityResolver in project jaffa-framework by jaffa-projects.

the class Log4jConfigForm method doValidate.

/**
 * This method should be invoked to copy the fields from the FormBean to the component after successful validation.
 * @return true of the values are copied successfully
 */
public boolean doValidate() throws FrameworkException, ApplicationExceptions {
    String value = null;
    ApplicationExceptions appExps = new ApplicationExceptions();
    value = getFileContentsWM().getValue();
    if (value == null || (value != null && value.trim().length() == 0)) {
        appExps.add(new Log4jConfigException(Log4jConfigException.PROP_XML_FILE_PARSE_ERROR, StringHelper.convertToHTML(MessageHelper.findMessage("label.Jaffa.Admin.Log4JConfig.NoContent", null))));
        throw appExps;
    }
    try {
        // Create a factory object for creating DOM parsers
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        // Specifies that the parser produced by this factory will validate documents as they are parsed.
        factory.setValidating(true);
        // Now use the factory to create a DOM parser
        DocumentBuilder parser = factory.newDocumentBuilder();
        // Specifies the EntityResolver onceto resolve DTD used in XML documents
        parser.setEntityResolver(new Log4jEntityResolver());
        // Specifies the ErrorHandler to handle warning/error/fatalError conditions
        parser.setErrorHandler(new DefaultErrorHandler());
        Document document = parser.parse(new InputSource(new StringReader(value)));
    } catch (ParserConfigurationException e) {
        // Cannot pass e.toString() and pass as parameter as the the meesage contains quotes
        // which dows not work properly with displaying the messages
        appExps.add(new Log4jConfigException(Log4jConfigException.PROP_XML_FILE_PARSE_ERROR, StringHelper.convertToHTML(e.getMessage())));
        throw appExps;
    } catch (SAXException e) {
        appExps.add(new Log4jConfigException(Log4jConfigException.PROP_XML_FILE_PARSE_ERROR, StringHelper.convertToHTML(e.getMessage())));
        throw appExps;
    } catch (IOException e) {
        appExps.add(new Log4jConfigException(Log4jConfigException.PROP_XML_FILE_PARSE_ERROR, StringHelper.convertToHTML(e.getMessage())));
        throw appExps;
    }
    setFileContents(value);
    return true;
}