es.ree.eemws.kit.folders.FolderManager Maven / Gradle / Ivy

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Client implementation of IEC 62325-504 technical specification. eemws-kit includes command line utilities to invoke the eem web services, as well as several GUI applications (browser, editor, ...)
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/*
 * Copyright 2024 Redeia.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 *  by the Free Software Foundation, version 3 of the license.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTIBIILTY or FITNESS FOR A PARTICULAR PURPOSE. See GNU Lesser General
 * Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program. If not, see
 * http://www.gnu.org/licenses/.
 *
 * Any redistribution and/or modification of this program has to make
 * reference to Redeia as the copyright owner of the program.
 */

package es.ree.eemws.kit.folders;

import java.rmi.RemoteException;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.swing.JOptionPane;

import es.ree.eemws.core.utils.config.ConfigException;

/**
 * Main class. Creates all the objects and schedules.
 *
 * @author Redeia.
 * @version 2.1 01/01/2024
 *
 */
public final class FolderManager {

	/** Logging. */
	private static final Logger LOGGER = Logger.getLogger(FolderManager.class.getName());

	/** Override sleep value if list is made by date instead of code. */
	private static final long SLEEP_BY_DATE = 30 * 1000L;

	/**
	 * Private constructor. Utility classes should not have a public constructor.
	 */
	private FolderManager() {

		/* Utility classes should not have a public constructor. */
	}

	/**
	 * Main method, creates the application objects and schedules.
	 *
	 * @param args Command line parameters (ignored)
	 */
	public static void main(final String[] args) {

		try {
			var config = new MagicFolderConfiguration();
			config.readConfiguration();

			if (ExecutionControl.isRunning(config.getInstanceID())) {
				if (StatusIcon.getStatus().isInteractive()) {
					JOptionPane.showMessageDialog(null, MessageCatalog.MF_ALREADY_RUNNING.getMessage(),
					        MessageCatalog.MF_TITLE_ERROR.getMessage(), JOptionPane.ERROR_MESSAGE);
				}

				if (LOGGER.isLoggable(Level.INFO)) {
					LOGGER.info(MessageCatalog.MF_ALREADY_RUNNING.getMessage());
				}
				StatusIcon.getStatus().removeIcon();

			} else {

				ScheduledExecutorService scheduler = null;

				/* Status images Initialization. */
				StatusIcon.getStatus().setIdle();

				/* Creates lock handler. */
				var lh = new LockHandler(config);

				scheduler = Executors.newScheduledThreadPool(config.getMaxNumThreads());

				var ics = config.getInputConfigurationSet();
				for (InputConfigurationSet ic : ics) {
					scheduler.scheduleAtFixedRate(new InputTask(lh, ic), 0, ic.getSleepTime(), TimeUnit.MILLISECONDS);
				}

				for (List lst : config.getOutputConfigurationSet()) {
					var sleep = Long.MAX_VALUE;
					var outSetIds = new StringBuilder();
					for (OutputConfigurationSet ocs : lst) {
						var curr = ocs.getSleepTime();
						if (sleep > curr) {
							sleep = curr;
						}
						outSetIds.append(ocs.getIndex());
						outSetIds.append("-"); //$NON-NLS-1$
					}

					outSetIds.setLength(outSetIds.length() - 1);

					var setIds = outSetIds.toString();
					if (setIds.equals("0")) { //$NON-NLS-1$
						setIds = ""; //$NON-NLS-1$
					} else {
						setIds = "-" + setIds; //$NON-NLS-1$
					}

					if (System.getProperty(MagicFolderConfiguration.LIST_BY_DATE_KEY) == null) {
						if (LOGGER.isLoggable(Level.INFO)) {
							LOGGER.info(MessageCatalog.MF_CONFIG_DELAY_TIME_O.getMessage(setIds, sleep));
						}
					} else {
						sleep = SLEEP_BY_DATE;
						if (LOGGER.isLoggable(Level.INFO)) {
							LOGGER.info(MessageCatalog.MF_CONFIG_DELAY_TIME_O_DATE.getMessage(setIds, sleep));
						}
					}
					scheduler.scheduleAtFixedRate(new OutputTask(lh, lst, setIds), 0, sleep, TimeUnit.MILLISECONDS);
				}

				/* Create deletion / backup folder. */
				if (config.getBackupFolder() != null) {
					var dft = new DeleteFilesTask(lh, config);
					int numDays = config.getNumOfDaysKept();
					scheduler.scheduleAtFixedRate(dft, numDays, numDays, TimeUnit.DAYS);
				}

				if (LOGGER.isLoggable(Level.INFO)) {
					LOGGER.info(MessageCatalog.MF_RUNNING.getMessage());
				}
			}

		} catch (ConfigException ex) {

			if (StatusIcon.getStatus().isInteractive()) {
				JOptionPane.showMessageDialog(null,
				        es.ree.eemws.kit.cmd.MessageCatalog.INVALID_CONFIGURATION.getMessage(ex.getMessage()),
				        MessageCatalog.MF_TITLE_ERROR.getMessage(), JOptionPane.ERROR_MESSAGE);
			}
			LOGGER.log(Level.SEVERE, es.ree.eemws.kit.cmd.MessageCatalog.INVALID_CONFIGURATION.getMessage(),
			        ex.getMessage());

			// Force exit
			StatusIcon.getStatus().removeIcon();
			System.exit(0); // NOSONAR Invalid configuration: we need to force application to exit.

		} catch (RemoteException ex) {

			if (StatusIcon.getStatus().isInteractive()) {
				JOptionPane.showMessageDialog(null,
				        es.ree.eemws.kit.cmd.MessageCatalog.INVALID_CONFIGURATION.getMessage(ex.getMessage()),
				        MessageCatalog.MF_TITLE_ERROR.getMessage(), JOptionPane.ERROR_MESSAGE);
			}
			LOGGER.log(Level.SEVERE, MessageCatalog.MF_CANNOT_REACH_REFERENCES.getMessage(), ex.getMessage());
			StatusIcon.getStatus().removeIcon();
		}
	}

}