Java tutorial
/* * Copyright (c) 2001-2011 Convertigo SA. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation; either version 3 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see<http://www.gnu.org/licenses/>. * * $URL: http://sourceus/svn/CEMS_opensource/branches/6.0.x/Studio/src/com/twinsoft/convertigo/beans/statements/LogStatement.java $ * $Author: fabienb $ * $Revision: 28379 $ * $Date: 2011-09-27 11:38:59 +0200 (mar., 27 sept. 2011) $ */ package com.twinsoft.convertigo.beans.steps; import org.apache.commons.lang3.StringUtils; import org.apache.log4j.Level; import org.apache.log4j.Logger; import org.mozilla.javascript.Context; import org.mozilla.javascript.Scriptable; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import com.twinsoft.convertigo.beans.core.ITagsProperty; import com.twinsoft.convertigo.beans.core.Step; import com.twinsoft.convertigo.engine.Engine; import com.twinsoft.convertigo.engine.EngineException; import com.twinsoft.convertigo.engine.util.VersionUtils; import com.twinsoft.convertigo.engine.util.XMLUtils; public class LogStep extends Step implements ITagsProperty { /** * */ private static final long serialVersionUID = -700241502764617513L; private String level = Level.INFO.toString(); private String logger = Engine.logContext.getName();; private String expression = "//todo"; public LogStep() { super(); } public LogStep(String logger, String mode, String expression) { super(); this.logger = logger; this.level = mode; this.expression = expression; } protected String getEvalString(Context javascriptContext, Scriptable scope) throws EngineException { evaluate(javascriptContext, scope, expression, "LogStatement", true); return evaluated != null ? evaluated.toString() : ""; } @Override public String toString() { return "(" + logger + ") : log." + level + "(" + StringUtils.abbreviate(expression, 25) + ")"; } @Override protected boolean stepExecute(Context javascriptContext, Scriptable scope) throws EngineException { if (isEnable()) { if (super.stepExecute(javascriptContext, scope)) { Logger log = null; if (logger.equals(Engine.logEngine.getName())) log = Engine.logEngine; else if (logger.equals(Engine.logContext.getName())) log = Engine.logContext; else if (logger.equals(Engine.logUser.getName())) log = Engine.logUser; else if (logger.equals(Engine.logAudit.getName())) log = Engine.logAudit; if (level.equals(Level.WARN.toString()) && log.isEnabledFor(Level.WARN)) log.warn(getEvalString(javascriptContext, scope)); else if (level.equals(Level.INFO.toString()) && log.isInfoEnabled()) log.info(getEvalString(javascriptContext, scope)); else if (level.equals(Level.DEBUG.toString()) && log.isDebugEnabled()) log.debug(getEvalString(javascriptContext, scope)); else if (level.equals(Level.TRACE.toString()) && log.isTraceEnabled()) log.trace(getEvalString(javascriptContext, scope)); else if (level.equals(Level.ERROR.toString()) && log.isEnabledFor(Level.ERROR)) log.error(getEvalString(javascriptContext, scope)); return true; } } return false; } @Override public void configure(Element element) throws Exception { super.configure(element); String version = element.getAttribute("version"); if (version == null) { String s = XMLUtils.prettyPrintDOM(element); EngineException ee = new EngineException( "Unable to find version number for the database object \"" + getName() + "\".\nXML data: " + s); throw ee; } if (VersionUtils.compare(version, "4.6.0") < 0) { NodeList properties = element.getElementsByTagName("property"); Element propValue = (Element) XMLUtils.findNodeByAttributeValue(properties, "name", "level"); Node xmlNode = null; NodeList nl = propValue.getChildNodes(); int len_nl = nl.getLength(); for (int j = 0; j < len_nl; j++) { xmlNode = nl.item(j); if (xmlNode.getNodeType() == Node.ELEMENT_NODE) { String sLevel = (String) XMLUtils.readObjectFromXml((Element) xmlNode); if (sLevel.equals("warning")) setLevel(Level.WARN.toString()); else if (sLevel.equals("message")) setLevel(Level.INFO.toString()); else if (sLevel.equals("debug")) setLevel(Level.DEBUG.toString()); else if (sLevel.equals("debug2")) setLevel(Level.TRACE.toString()); else if (sLevel.equals("debug3")) setLevel(Level.TRACE.toString()); continue; } } hasChanged = true; Engine.logBeans .warn("(Transaction) The object \"" + getName() + "\" has been updated to version 4.6.0"); } } public String[] getTagsForProperty(String propertyName) { if (propertyName.equals("level")) { return new String[] { Level.ERROR.toString(), Level.WARN.toString(), Level.INFO.toString(), Level.DEBUG.toString(), Level.TRACE.toString(), }; } if (propertyName.equals("logger")) { return new String[] { Engine.logEngine.getName(), Engine.logContext.getName(), Engine.logUser.getName(), Engine.logAudit.getName(), }; } return new String[0]; } @Override public String toJsString() { return expression; } public String getLevel() { return level; } public void setLevel(String level) { this.level = level; } public String getExpression() { return expression; } public void setExpression(String expression) { this.expression = expression; } public String getLogger() { return logger; } public void setLogger(String logger) { this.logger = logger; } }