Java tutorial
package de.sub.goobi.helper.tasks; /** * This file is part of the Goobi Application - a Workflow tool for the support of mass digitization. * * Visit the websites for more information. * - https://goobi.io * - https://www.intranda.com * - https://github.com/intranda/goobi * * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 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, write to the Free Software Foundation, Inc., 59 * Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions * of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to * link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and * distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and * conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this * library, you may extend this exception to your version of the library, but you are not obliged to do so. If you do not wish to do so, delete this * exception statement from your version. */ import java.io.IOException; import java.nio.file.FileSystems; import java.nio.file.Path; import java.nio.file.Paths; import java.util.HashMap; import java.util.Iterator; import org.goobi.beans.Process; import org.jdom2.Document; import org.jdom2.Element; import org.jdom2.input.SAXBuilder; import de.sub.goobi.config.ConfigurationHelper; import de.sub.goobi.helper.Helper; import de.sub.goobi.helper.StorageProvider; import de.sub.goobi.helper.exceptions.DAOException; import de.sub.goobi.persistence.managers.ProcessManager; public class ProcessSwapInTask extends LongRunningTask { @Override public void initialize(org.goobi.beans.Process inProzess) { super.initialize(inProzess); setTitle("Einlagerung: " + inProzess.getTitel()); } /** * Aufruf als Thread ================================================================ */ @SuppressWarnings("deprecation") @Override public void run() { setStatusProgress(5); String swapPath = null; // ProzessDAO dao = new ProzessDAO(); String processDirectory = ""; if (ConfigurationHelper.getInstance().isUseSwapping()) { swapPath = ConfigurationHelper.getInstance().getSwapPath(); } else { setStatusMessage("swapping not activated"); setStatusProgress(-1); return; } if (swapPath == null || swapPath.length() == 0) { setStatusMessage("no swappingPath defined"); setStatusProgress(-1); return; } Path swapFile = Paths.get(swapPath); if (!StorageProvider.getInstance().isFileExists(swapFile)) { setStatusMessage("Swap folder does not exist or is not mounted"); setStatusProgress(-1); return; } try { processDirectory = getProzess().getProcessDataDirectoryIgnoreSwapping(); // TODO: Don't catch Exception (the super class) } catch (Exception e) { logger.warn("Exception:", e); setStatusMessage( "Error while getting process data folder: " + e.getClass().getName() + " - " + e.getMessage()); setStatusProgress(-1); return; } Path fileIn = Paths.get(processDirectory); Path fileOut = Paths.get(swapPath + getProzess().getId() + FileSystems.getDefault().getSeparator()); if (!StorageProvider.getInstance().isFileExists(fileOut)) { setStatusMessage(getProzess().getTitel() + ": swappingOutTarget does not exist"); setStatusProgress(-1); return; } if (!StorageProvider.getInstance().isFileExists(fileIn)) { setStatusMessage(getProzess().getTitel() + ": process data folder does not exist"); setStatusProgress(-1); return; } SAXBuilder builder = new SAXBuilder(); Document docOld; try { Path swapLogFile = Paths.get(processDirectory, "swapped.xml"); docOld = builder.build(swapLogFile.toFile()); // TODO: Don't catch Exception (the super class) } catch (Exception e) { logger.warn("Exception:", e); setStatusMessage("Error while reading swapped.xml in process data folder: " + e.getClass().getName() + " - " + e.getMessage()); setStatusProgress(-1); return; } /* * --------------------- alte Checksummen in HashMap schreiben ------------------- */ setStatusMessage("reading checksums"); Element rootOld = docOld.getRootElement(); HashMap<String, String> crcMap = new HashMap<String, String>(); // TODO: Don't use Iterators for (Iterator<Element> it = rootOld.getChildren("file").iterator(); it.hasNext();) { Element el = it.next(); crcMap.put(el.getAttribute("path").getValue(), el.getAttribute("crc32").getValue()); } StorageProvider.getInstance().deleteDataInDir(fileIn); /* * --------------------- Dateien kopieren und Checksummen ermitteln ------------------- */ Document doc = new Document(); Element root = new Element("goobiArchive"); doc.setRootElement(root); /* * --------------------- Verzeichnisse und Dateien kopieren und anschliessend den Ordner leeren ------------------- */ setStatusProgress(50); try { setStatusMessage("copying process files"); Helper.copyDirectoryWithCrc32Check(fileOut, fileIn, swapPath.length(), root); } catch (IOException e) { logger.warn("IOException:", e); setStatusMessage("IOException in copyDirectory: " + e.getMessage()); setStatusProgress(-1); return; } setStatusProgress(80); /* * --------------------- Checksummen vergleichen ------------------- */ setStatusMessage("checking checksums"); // TODO: Don't use Iterators for (Iterator<Element> it = root.getChildren("file").iterator(); it.hasNext();) { Element el = it.next(); String newPath = el.getAttribute("path").getValue(); String newCrc = el.getAttribute("crc32").getValue(); if (crcMap.containsKey(newPath)) { if (!crcMap.get(newPath).equals(newCrc)) { setLongMessage(getLongMessage() + "File " + newPath + " has different checksum<br/>"); } crcMap.remove(newPath); } } setStatusProgress(85); /* * --------------------- prfen, ob noch Dateien fehlen ------------------- */ setStatusMessage("checking missing files"); if (crcMap.size() > 0) { for (String myFile : crcMap.keySet()) { setLongMessage(getLongMessage() + "File " + myFile + " is missing<br/>"); } } setStatusProgress(90); /* in Prozess speichern */ StorageProvider.getInstance().deleteDir(fileOut); try { setStatusMessage("saving process"); Process myProzess = ProcessManager.getProcessById(getProzess().getId()); myProzess.setSwappedOutGui(false); ProcessManager.saveProcess(myProzess); } catch (DAOException e) { setStatusMessage("DAOException while saving process: " + e.getMessage()); logger.warn("DAOException:", e); setStatusProgress(-1); return; } setStatusMessage("done"); setStatusProgress(100); } }