FtpEngine.java

/*
 * This file is part of Waarp Project (named also Waarp or GG).
 *
 *  Copyright (c) 2019, Waarp SAS, and individual contributors by the @author
 *  tags. See the COPYRIGHT.txt in the distribution for a full listing of
 * individual contributors.
 *
 *  All Waarp Project 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 3 of the License, or (at your
 * option) any later version.
 *
 * Waarp 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
 * Waarp . If not, see <http://www.gnu.org/licenses/>.
 */
package org.waarp.gateway.ftp.service;

import org.waarp.common.future.WaarpFuture;
import org.waarp.common.logging.WaarpLogger;
import org.waarp.common.logging.WaarpLoggerFactory;
import org.waarp.common.service.EngineAbstract;
import org.waarp.common.utility.SystemPropertyUtil;
import org.waarp.ftp.core.config.FtpConfiguration;
import org.waarp.ftp.core.utils.FtpChannelUtils;
import org.waarp.gateway.ftp.ExecGatewayFtpServer;
import org.waarp.gateway.ftp.config.FileBasedConfiguration;

/**
 * Engine used to start and stop the real Gateway Ftp service
 */
public class FtpEngine extends EngineAbstract {
  /**
   * Internal Logger
   */
  private static final WaarpLogger logger =
      WaarpLoggerFactory.getLogger(FtpEngine.class);

  public static final WaarpFuture closeFuture = new WaarpFuture(true);

  public static final String CONFIGFILE = "org.waarp.gateway.ftp.config.file";

  public static final String R66CONFIGFILE = "org.waarp.r66.config.file";

  @Override
  public final void run() {
    final String ftpfile = SystemPropertyUtil.get(CONFIGFILE);
    final String r66file = SystemPropertyUtil.get(R66CONFIGFILE);
    if (ftpfile == null) {
      logger.error("Cannot find " + CONFIGFILE + " parameter");
      shutdown();
      return;
    }
    try {
      if (!ExecGatewayFtpServer.initialize(ftpfile, r66file)) {
        logger.error("Cannot start Gateway FTP");
        shutdown();
        return;
      }
    } catch (final Throwable e) {
      logger.error("Cannot start Gateway FTP", e);
      shutdown();
      return;
    }
    logger.warn("Service started with " + ftpfile);
  }

  private static void exit(final FtpConfiguration configuration) {
    final FtpChannelUtils util = new FtpChannelUtils(configuration);
    util.run();
  }

  @Override
  public final void shutdown() {
    exit(FileBasedConfiguration.fileBasedConfiguration);
    closeFuture.setSuccess();
    logger.info("Service stopped");
  }

  @Override
  public final boolean isShutdown() {
    return closeFuture.isDone();
  }

  @Override
  public final boolean waitShutdown() {
    closeFuture.awaitOrInterruptible();
    return closeFuture.isSuccess();
  }
}