R66Engine.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.openr66.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.openr66.protocol.configuration.Configuration;
import org.waarp.openr66.protocol.configuration.R66SystemProperties;
import org.waarp.openr66.protocol.utils.ChannelUtils;
import org.waarp.openr66.server.R66Server;

/**
 * Engine used to start and stop the real R66 service
 */
public class R66Engine extends EngineAbstract {
  /**
   * Internal Logger
   */
  private static final WaarpLogger logger =
      WaarpLoggerFactory.getLogger(R66Engine.class);

  static final WaarpFuture closeFuture = new WaarpFuture(true);

  @Override
  public void run() {
    final String config =
        SystemPropertyUtil.get(R66SystemProperties.OPENR66_CONFIGFILE);
    if (config == null) {
      logger.error("Cannot find " + R66SystemProperties.OPENR66_CONFIGFILE +
                   " parameter");
      closeFuture.cancel();
      shutdown();
      return;
    }
    Configuration.configuration.getShutdownConfiguration().serviceFuture =
        closeFuture;
    try {
      if (!R66Server.initialize(config)) {
        throw new Exception("Initialization in error");
      }
    } catch (final Throwable e) {
      logger.error("Cannot start R66", e);
      closeFuture.cancel();
      shutdown();
      return;
    }
    logger.warn("Service started with " + config);
  }

  @Override
  public final void shutdown() {
    logger.warn("Shutdown");
    ChannelUtils.startShutdown();
    closeFuture.setSuccess();
    logger.info("Service stopped");
  }

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

  @Override
  public final boolean waitShutdown() {
    closeFuture.awaitOrInterruptible();
    logger.info("Shutdown on going: {}", closeFuture.isSuccess());
    return closeFuture.isSuccess();
  }
}