Java tutorial
/* * This library is part of OpenCms - * the Open Source Content Management System * * Copyright (c) Alkacon Software GmbH (http://www.alkacon.com) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * For further information about Alkacon Software GmbH, please see the * company website: http://www.alkacon.com * * For further information about OpenCms, please see the * project website: http://www.opencms.org * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package org.opencms.xml; import org.opencms.util.CmsStringUtil; import org.dom4j.DocumentHelper; import org.dom4j.Element; import org.dom4j.util.XMLErrorHandler; import org.xml.sax.SAXParseException; /** * Error hander for writing errors found during XML validation to the OpenCms log.<p> * * Exceptions caused by warnings are suppressed (but written to the log if level is set to WARN).<p> * * @since 6.0.0 */ public class CmsXmlValidationErrorHandler extends XMLErrorHandler { /** Stores the warnings that occur during a SAX parse. */ private Element m_warnings; /** * Constructor from superclass.<p> */ public CmsXmlValidationErrorHandler() { super(); m_warnings = DocumentHelper.createElement("warnings"); } /** * @see org.xml.sax.ErrorHandler#error(org.xml.sax.SAXParseException) */ @Override public void error(SAXParseException e) { String message = e.getMessage(); if (CmsStringUtil.isNotEmpty(message)) { if (message.startsWith("sch-props-correct.2")) { // HACK: multiple schema includes cause errors in validation with Xerces 2 // the schema nevertheless is usable // redirect this error to be a warning warning(e); return; } } super.error(e); } /** * Returns the warnings.<p> * * @return the warnings */ public Element getWarnings() { return m_warnings; } /** * @see org.dom4j.util.XMLErrorHandler#warning(org.xml.sax.SAXParseException) */ @Override public void warning(SAXParseException e) { Element element = m_warnings.addElement(WARNING_QNAME); addException(element, e); } }