ShutDownHook.java

/*
 * Copyright 2006-2016 The MZmine 3 Development Team
 * 
 * This file is part of MZmine 3.
 * 
 * MZmine 3 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.
 * 
 * MZmine 3 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 MZmine 3; if not,
 * write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
 * USA
 */

package io.github.mzmine.main;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import io.github.msdk.datamodel.featuretables.FeatureTable;
import io.github.msdk.datamodel.rawdata.RawDataFile;
import io.github.mzmine.project.MZmineProject;

/**
 * Shutdown hook - invoked on JRE shutdown. This method saves current configuration to XML and
 * closes (and removes) all opened temporary files.
 */
class ShutDownHook implements Runnable {

  private final Logger logger = LoggerFactory.getLogger(this.getClass());

  @Override
  public void run() {

    logger.info("Running post-shutdown code");

    // Cancel all running tasks - this is important because tasks can spawn
    // additional processes (such as ThermoRawDump.exe on Windows) and these
    // will block the shutdown of the JVM. If we cancel the tasks, the
    // processes will be killed immediately.
    /*
     * for (WrappedTask wt : MZmineCore.getTaskController().getTaskQueue() .getQueueSnapshot()) {
     * Task t = wt.getActualTask(); if ((t.getStatus() == TaskStatus.WAITING) || (t.getStatus() ==
     * TaskStatus.PROCESSING)) { t.cancel(); } }
     */

    // Save configuration
    try {
      MZmineConfiguration configuration = MZmineCore.getConfiguration();
      if (configuration != null) {
        configuration.saveConfiguration(MZmineConfiguration.CONFIG_FILE);
      }
    } catch (Exception e) {
      e.printStackTrace();
    }

    // Remove all temporary files
    MZmineProject currentProject = MZmineCore.getCurrentProject();
    if (currentProject != null) {
      for (RawDataFile dataFile : currentProject.getRawDataFiles()) {
        dataFile.dispose();
      }
      for (FeatureTable featureTable : currentProject.getFeatureTables()) {
        featureTable.dispose();
      }
    }

  }
}