/* * * Copyright 2013 Entando S.r.l. (http://www.entando.com) All rights reserved. * * This file is part of Entando software. * Entando is a free software; * You can redistribute it and/or modify it * under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation; version 2. * * See the file License for the specific language governing permissions * and limitations under the License * * * * Copyright 2013 Entando S.r.l. (http://www.entando.com) All rights reserved. * */ package com.agiletec.plugins.jpavatar.aps.system.services.avatar.parse; import java.io.StringReader; import org.apache.commons.collections.ListUtils; import org.apache.commons.lang.ArrayUtils; import org.apache.commons.lang.StringUtils; import org.jdom.Document; import org.jdom.Element; import org.jdom.input.SAXBuilder; import org.jdom.output.Format; import org.jdom.output.XMLOutputter; import com.agiletec.aps.system.ApsSystemUtils; import com.agiletec.aps.system.exception.ApsSystemException; import com.agiletec.plugins.jpavatar.aps.system.services.avatar.AvatarConfig; /* <jpavatar> <style>{AvatarConfig style constant}</style> </jpavatar> */ public class AvatarConfigDOM { /** * Extract the service configuration from an xml. * @param xml The xml containing the configuration. * @return The service configuration. * @throws ApsSystemException In case of parsing errors. */ public AvatarConfig extractConfig(String xml) throws ApsSystemException { AvatarConfig config = new AvatarConfig(); Element root = this.getRootElement(xml); Element styleElem = root.getChild(STYLE_ELEM); String style = null; if (styleElem != null) { style = styleElem.getText(); } if (StringUtils.isBlank(style) || !ArrayUtils.contains(AvatarConfig.STYLES, style)) { style = AvatarConfig.STYLE_LOCAL; } config.setStyle(style); return config; } /** * Extract the configuration from the xml element and save it into the AvatarConfig object. * @param root The xml root element containing the smtp configuration. * @param config The configuration. */ private Element createConfigElement(AvatarConfig config) { Element configElem = new Element(ROOT); Element styleElement = new Element(STYLE_ELEM); styleElement.setText(config.getStyle()); configElem.addContent(styleElement); return configElem; } /** * Create an xml containing the jpavatar configuration. * @param config The jpavatar configuration. * @return The xml containing the configuration. * @throws ApsSystemException In case of errors. */ public String createConfigXml(AvatarConfig config) throws ApsSystemException { Element root = this.createConfigElement(config); Document doc = new Document(root); XMLOutputter out = new XMLOutputter(); Format format = Format.getPrettyFormat(); format.setIndent("\t"); out.setFormat(format); return out.outputString(doc); } /** * Returns the Xml element from a given text. * @param xmlText The text containing an Xml. * @return The Xml element from a given text. * @throws ApsSystemException In case of parsing exceptions. */ private Element getRootElement(String xmlText) throws ApsSystemException { SAXBuilder builder = new SAXBuilder(); builder.setValidation(false); StringReader reader = new StringReader(xmlText); Element root = null; try { Document doc = builder.build(reader); root = doc.getRootElement(); } catch (Throwable t) { ApsSystemUtils.getLogger().error("Error parsing xml: " + t.getMessage()); throw new ApsSystemException("Error parsing xml", t); } return root; } private final String ROOT = "jpavatar"; private final String STYLE_ELEM = "style"; }