/*
 * The contents of this file are subject to the terms of the Common Development and
 * Distribution License (the License). You may not use this file except in compliance with the
 * License.
 *
 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
 * specific language governing permission and limitations under the License.
 *
 * When distributing Covered Software, include this CDDL Header Notice in each file and include
 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
 * Header, with the fields enclosed by brackets [] replaced by your own identifying
 * information: "Portions Copyright [year] [name of copyright owner]".
 *
 * Copyright 2008-2009 Sun Microsystems, Inc.
 * Portions Copyright 2012-2016 ForgeRock AS.
 */
package org.opends.server.tools;

import static com.forgerock.opendj.cli.Utils.*;
import static com.forgerock.opendj.util.OperatingSystem.*;

import static org.opends.messages.ToolMessages.*;

import java.io.OutputStream;
import java.io.PrintStream;

import org.opends.server.loggers.JDKLogging;
import org.opends.server.types.NullOutputStream;

/**
  * This class is used to stop the Windows service associated with this
  * instance on this machine.
  * This tool allows to stop OpenDS as a Windows service.
  */
public class StopWindowsService
{
  /** The service was successfully stopped. */
  private static final int SERVICE_STOP_SUCCESSFUL = 0;
  /** The service could not be found. */
  private static final int SERVICE_NOT_FOUND = 1;
  /** The service could not be stopped. */
  private static final int SERVICE_STOP_ERROR = 3;

  /**
   * Invokes the net stop on the service corresponding to this server.
   *
   * @param  args  The command-line arguments provided to this program.
   */
  public static void main(String[] args)
  {
    System.exit(filterExitCode(stopWindowsService(System.out, System.err)));
  }

  /**
   * Invokes the net stop on the service corresponding to this server, it writes
   * information and error messages in the provided streams.
   *
   * @return <CODE>SERVICE_STOP_SUCCESSFUL</CODE>,
   *         <CODE>SERVICE_NOT_FOUND</CODE> or <CODE>SERVICE_STOP_ERROR</CODE>
   *         depending on whether the service could be stopped or not.
   * @param outStream
   *          The stream to write standard output messages.
   * @param errStream
   *          The stream to write error messages.
   */
  private static int stopWindowsService(OutputStream outStream, OutputStream errStream)
  {
    NullOutputStream.wrapOrNullStream(outStream);
    PrintStream err = NullOutputStream.wrapOrNullStream(errStream);
    JDKLogging.disableLogging();

    String serviceName = ConfigureWindowsService.getServiceName();
    if (serviceName == null)
    {
      printWrappedText(err, ERR_WINDOWS_SERVICE_NOT_FOUND.get());
      return SERVICE_NOT_FOUND;
    }
    String[] cmd;
    if (hasUAC())
    {
      cmd= new String[] {
          ConfigureWindowsService.getLauncherBinaryFullPath(),
          ConfigureWindowsService.LAUNCHER_OPTION,
          ConfigureWindowsService.getLauncherAdministratorBinaryFullPath(),
          ConfigureWindowsService.LAUNCHER_OPTION,
          "net",
          "stop",
          serviceName
      };
    }
    else
    {
      cmd= new String[] {
          "net",
          "stop",
          serviceName
      };
    }
    /* Check if is a running service */
    try
    {
      switch (Runtime.getRuntime().exec(cmd).waitFor())
      {
      case 0:
        return SERVICE_STOP_SUCCESSFUL;
      case 2:
        return SERVICE_STOP_SUCCESSFUL;
      default:
        return SERVICE_STOP_ERROR;
      }
    }
    catch (Throwable t)
    {
      printWrappedText(err, ERR_WINDOWS_SERVICE_STOP_ERROR.get());
      printWrappedText(err, "Exception:" + t);
      return SERVICE_STOP_ERROR;
    }
  }
}