/** * Copyright (C) 2010 - 2016 52°North Initiative for Geospatial Open Source * Software GmbH * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * * If the program is linked with libraries which are licensed under one of * the following licenses, the combination of the program with the linked * library is not considered a "derivative work" of the program: * * • Apache License, version 2.0 * • Apache Software License, version 1.0 * • GNU Lesser General Public License, version 3 * • Mozilla Public License, versions 1.0, 1.1 and 2.0 * • Common Development and Distribution License (CDDL), version 1.0 * * Therefore the distribution of the program linked with libraries licensed * under the aforementioned licenses, is permitted by the copyright holders * if the distribution is compliant with both the GNU General Public * License version 2 and the aforementioned licenses. * * 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. */ package org.n52.wps.server.r.util; import java.text.DateFormat; import java.util.Date; import org.rosuda.REngine.Rserve.RConnection; import org.rosuda.REngine.Rserve.RserveException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class RLogger { private static Logger LOGGER = LoggerFactory.getLogger(RLogger.class); private static DateFormat format = DateFormat.getDateTimeInstance(); public static void logGenericRProcess(RConnection rCon, String message) { String msg = prepareMessage(message); StringBuilder evalString = new StringBuilder(); evalString.append("cat(\"[GenericRProcess @ "); evalString.append(format.format(new Date(System.currentTimeMillis()))); evalString.append("] "); evalString.append(msg); evalString.append("\\n\")"); try { rCon.eval(evalString.toString()); } catch (RserveException e) { LOGGER.warn("Could not log message '" + msg + "'", e); } } public static void log(RConnection rCon, String message) { String msg = prepareMessage(message); StringBuilder evalString = new StringBuilder(); evalString.append("cat("); appendPre(evalString); evalString.append(" "); evalString.append(msg); evalString.append("\\n\")"); logIt(rCon, evalString); } private static void logIt(RConnection rCon, String evalString) { try { rCon.eval(evalString); } catch (RserveException e) { LOGGER.warn("Could not log message '{}'", evalString.toString(), e); } } private static void logIt(RConnection rCon, StringBuilder evalString) { logIt(rCon, evalString.toString()); } private static void appendPre(StringBuilder evalString) { evalString.append("\"[WPS4R @ "); evalString.append(format.format(new Date(System.currentTimeMillis()))); evalString.append("]"); } private static String prepareMessage(String message) { // return message.replace("\"", "\\\""); return new String(message); } public static void logVariable(RConnection rCon, String var) { StringBuilder evalString = new StringBuilder(); evalString.append("cat("); appendPre(evalString); evalString.append("\""); evalString.append(", "); evalString.append("\""); evalString.append(var); evalString.append(" =\", "); evalString.append("toString("); evalString.append(var); evalString.append(")"); evalString.append(", \""); evalString.append("\\n\")"); logIt(rCon, evalString); } public static void logSessionContent(RConnection rCon) { logIt(rCon, "cat(paste(capture.output(ls()), collapse = \"\\n\"), \"\n\")"); } public static void logWorkspaceContent(RConnection rCon) { logIt(rCon, "cat(paste(capture.output(list.files(getwd())), collapse = \"\\n\"), \"\n\")"); } }