Package sonia.jdf.cmd.unix

Source Code of sonia.jdf.cmd.unix.UnixStartCommand

/**
* Copyright (c) 2011, Sebastian Sdorra
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
*    this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the documentation
*    and/or other materials provided with the distribution.
* 3. Neither the name of JDF; nor the names of its
*    contributors may be used to endorse or promote products derived from this
*    software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* https://bitbucket.org/sdorra/jdf
*
*/



package sonia.jdf.cmd.unix;

//~--- non-JDK imports --------------------------------------------------------

import sonia.jdf.ApplicationDescriptor;
import sonia.jdf.ResultCode;
import sonia.jdf.cmd.AbstractExecCommand;
import sonia.jdf.cmd.CommandDescription;

//~--- JDK imports ------------------------------------------------------------

import com.sun.akuma.Daemon;

import java.io.IOException;

import java.util.logging.Level;
import java.util.logging.Logger;

/**
*
* @author Sebastian Sdorra
*/
public class UnixStartCommand extends AbstractExecCommand
{

  /** Field description */
  public static final String COMMAND_NAME = "start";

  /** Field description */
  private static final Logger logger =
    Logger.getLogger(UnixStartCommand.class.getName());

  //~--- methods --------------------------------------------------------------

  /**
   * Method description
   *
   *
   * @param application
   * @param args
   *
   * @return
   */
  @Override
  public int execute(ApplicationDescriptor application, String[] args)
  {
    int result = ResultCode.OK;
    Daemon daemon = new Daemon();

    if (daemon.isDaemonized())
    {
      try
      {
        daemon.init(UnixCommandUtil.getPidFile(application).getAbsolutePath());
        result = executeApplication(application);
      }
      catch (Exception ex)
      {
        logger.log(Level.SEVERE, null, ex);
        System.err.println("could not create daemon");
        result = ResultCode.DAEMON_START;
      }
    }
    else
    {
      try
      {
        daemon.daemonize();
      }
      catch (IOException ex)
      {
        logger.log(Level.SEVERE, null, ex);
        System.err.println("could not create daemon");
        result = ResultCode.DAEMON_START;
      }
    }

    return result;
  }

  //~--- get methods ----------------------------------------------------------

  /**
   * Method description
   *
   *
   * @param application
   *
   * @return
   */
  @Override
  public CommandDescription getDescription(ApplicationDescriptor application)
  {
    return new CommandDescription(
        COMMAND_NAME,
        "start ".concat(application.getName()).concat(" as daemon"));
  }
}
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