[ACCEPTED]-Need a way to check status of Windows service programmatically-windows-services

here's what I had to do. It's ugly, but 4 it works beautifully.

String STATE_PREFIX = "STATE              : ";

String s = runProcess("sc query \""+serviceName+"\"");
// check that the temp string contains the status prefix
int ix = s.indexOf(STATE_PREFIX);
if (ix >= 0) {
  // compare status number to one of the states
  String stateStr = s.substring(ix+STATE_PREFIX.length(), ix+STATE_PREFIX.length() + 1);
  int state = Integer.parseInt(stateStr);
  switch(state) {
    case (1): // service stopped
      break;
    case (4): // service started
      break;
   }
}

runProcess is a private method 3 that runs the given string as a command 2 line process and returns the resulting output. As 1 I said, ugly, but works. Hope this helps.

You can create a small VBS on-th-fly, launch 1 it and capture its return code.

import java.io.File;
import java.io.FileWriter;

public class VBSUtils {
  private VBSUtils() {  }

  public static boolean isServiceRunning(String serviceName) {
    try {
        File file = File.createTempFile("realhowto",".vbs");
        file.deleteOnExit();
        FileWriter fw = new java.io.FileWriter(file);

        String vbs = "Set sh = CreateObject(\"Shell.Application\") \n"
                   + "If sh.IsServiceRunning(\""+ serviceName +"\") Then \n"
                   + "   wscript.Quit(1) \n"
                   + "End If \n"
                   + "wscript.Quit(0) \n";
        fw.write(vbs);
        fw.close();
        Process p = Runtime.getRuntime().exec("wscript " + file.getPath());
        p.waitFor();
        return (p.exitValue() == 1);
    }
    catch(Exception e){
        e.printStackTrace();
    }
    return false;
  }


  public static void main(String[] args){
    //
    // DEMO
    //
    String result = "";
    msgBox("Check if service 'Themes' is running (should be yes)");
    result = isServiceRunning("Themes") ? "" : " NOT ";
    msgBox("service 'Themes' is " + result + " running ");

    msgBox("Check if service 'foo' is running (should be no)");
    result = isServiceRunning("foo") ? "" : " NOT ";
    msgBox("service 'foo' is " + result + " running ");
  }

  public static void msgBox(String msg) {
    javax.swing.JOptionPane.showConfirmDialog((java.awt.Component)
       null, msg, "VBSUtils", javax.swing.JOptionPane.DEFAULT_OPTION);
  }
}

Based on the other answers I constructed 2 the following code to check for Windows 1 Service status:

public void checkService() {
  String serviceName = "myService";  

  try {
    Process process = new ProcessBuilder("C:\\Windows\\System32\\sc.exe", "query" , serviceName ).start();
    InputStream is = process.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    String line;
    String scOutput = "";

    // Append the buffer lines into one string
    while ((line = br.readLine()) != null) {
        scOutput +=  line + "\n" ;
    }

    if (scOutput.contains("STATE")) {
        if (scOutput.contains("RUNNING")) {
            System.out.println("Service running");
        } else {
            System.out.println("Service stopped");
        }       
    } else {
        System.out.println("Unknown service");
    }
  } catch (IOException e) {
    e.printStackTrace();
  } 
}

I have been dealing with installers for 9 years and the trick is to create your own 8 EXE and call it on setup. This offers good 7 flexibility like displaying precise error 6 messages in the event an error occurs, and 5 have success-based return values so your 4 installer knows about what happened.

Here's 3 how to start, stop and query states for 2 windows services (C++): http://msdn.microsoft.com/en-us/library/ms684941(VS.85).aspx (VB and C# offers 1 similar functions)

I have had some luck in the past with the 7 Java Service Wrapper. Depending upon your 6 situation you may need to pay in order to 5 use it. But it offers a clean solution that 4 supports Java and could be used in the InstallAnywhere 3 environment with (I think) little trouble. This 2 will also allow you to support services 1 on Unix boxes as well.

http://wrapper.tanukisoftware.org/doc/english/download.jsp

A shot in the dark but take a look at your 2 Install Anywhere java documentation.

Specifically,

/javadoc/com/installshield/wizard/platform/win32/Win32Service.html

The 1 class:

com.installshield.wizard.platform.win32
Interface Win32Service

All Superinterfaces:
    Service 

The method:

public NTServiceStatus queryNTServiceStatus(String name)
                                     throws ServiceException

    Calls the Win32 QueryServiceStatus to retrieve the status of the specified service. See the Win32 documentation for this API for more information.

    Parameters:
        name - The internal name of the service. 
    Throws:
        ServiceException

Here's a straignt C# / P/Invoke solution.

        /// <summary>
    /// Returns true if the specified service is running, or false if it is not present or not running.
    /// </summary>
    /// <param name="serviceName">Name of the service to check.</param>
    /// <returns>Returns true if the specified service is running, or false if it is not present or not running.</returns>
    static bool IsServiceRunning(string serviceName)
    {
        bool rVal = false;
        try
        {
            IntPtr smHandle = NativeMethods.OpenSCManager(null, null, NativeMethods.ServiceAccess.ENUMERATE_SERVICE);
            if (smHandle != IntPtr.Zero)
            {
                IntPtr svHandle = NativeMethods.OpenService(smHandle, serviceName, NativeMethods.ServiceAccess.ENUMERATE_SERVICE);
                if (svHandle != IntPtr.Zero)
                {
                    NativeMethods.SERVICE_STATUS servStat = new NativeMethods.SERVICE_STATUS();
                    if (NativeMethods.QueryServiceStatus(svHandle, servStat))
                    {
                        rVal = servStat.dwCurrentState == NativeMethods.ServiceState.Running;
                    }
                    NativeMethods.CloseServiceHandle(svHandle);
                }
                NativeMethods.CloseServiceHandle(smHandle);
            }
        }
        catch (System.Exception )
        {

        }
        return rVal;
    }

public static class NativeMethods
{
    [DllImport("AdvApi32")]
    public static extern IntPtr OpenSCManager(string machineName, string databaseName, ServiceAccess access);
    [DllImport("AdvApi32")]
    public static extern IntPtr OpenService(IntPtr serviceManagerHandle, string serviceName, ServiceAccess access);
    [DllImport("AdvApi32")]
    public static extern bool CloseServiceHandle(IntPtr serviceHandle);
    [DllImport("AdvApi32")]
    public static extern bool QueryServiceStatus(IntPtr serviceHandle, [Out] SERVICE_STATUS status);

    [Flags]
    public enum ServiceAccess : uint
    {
        ALL_ACCESS = 0xF003F,
        CREATE_SERVICE = 0x2,
        CONNECT = 0x1,
        ENUMERATE_SERVICE = 0x4,
        LOCK = 0x8,
        MODIFY_BOOT_CONFIG = 0x20,
        QUERY_LOCK_STATUS = 0x10,
        GENERIC_READ = 0x80000000,
        GENERIC_WRITE = 0x40000000,
        GENERIC_EXECUTE = 0x20000000,
        GENERIC_ALL = 0x10000000
    }

    public enum ServiceState
    {
        Stopped = 1,
        StopPending = 3,
        StartPending = 2,
        Running = 4,
        Paused = 7,
        PausePending =6,
        ContinuePending=5
    }

    [StructLayout(LayoutKind.Sequential, Pack = 1)]
    public class SERVICE_STATUS
    {
        public int dwServiceType;
        public ServiceState dwCurrentState;
        public int dwControlsAccepted;
        public int dwWin32ExitCode;
        public int dwServiceSpecificExitCode;
        public int dwCheckPoint;
        public int dwWaitHint;
    };
}

0

I improvised on the given solutions, to 8 make it locale independent. Comparing the 7 string "RUNNING" would not work 6 in systems with non-english locales as Alejandro González rightly pointed out.

I 5 made use of sc interrogate and look for the status codes 4 returned by it.

Mainly, the service can have 3 3 states:-

1 - Not available

[SC] OpenService FAILED 1060: The specified service does not exist as an installed service.

2 - Not running

([SC] ControlService FAILED 1062: The service has not been started)

3 2 - Running

    TYPE               : 10  WIN32_OWN_PROCESS
    STATE              : 2  START_PENDING
                            (NOT_STOPPABLE, NOT_PAUSABLE, IGNORES_SHUTDOWN)
    WIN32_EXIT_CODE    : 0  (0x0)
    SERVICE_EXIT_CODE  : 0  (0x0)
    CHECKPOINT         : 0x0
    WAIT_HINT          : 0x7d0
    PID                : 21100code here

So using them in following code, gives 1 us the desired result :-

public static void checkBackgroundService(String serviceName) {
    Process process;
    try {
        process = Runtime.getRuntime().exec("sc interrogate " + serviceName);
        Scanner reader = new Scanner(process.getInputStream(), "UTF-8");
        StringBuffer buffer = new StringBuffer();
        while (reader.hasNextLine()) {
            buffer.append(reader.nextLine());
        }
        System.out.println(buffer.toString());
            if (buffer.toString().contains("1060:")) {
                System.out.println("Specified Service does not exist");
            } else if (buffer.toString().contains("1062:")) {
                System.out.println("Specified Service is not started (not running)");
            } else {
                System.out.println("Specified Service is running");
            }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

During startup, create a file with File.deleteOnExit().

Check 1 for the existence of the file in your scripts.

Simply call this method to check the status 1 of service whether running or not.

public boolean checkIfServiceRunning(String serviceName) {
    Process process;
    try {
      process = Runtime.getRuntime().exec("sc query " + serviceName);
      Scanner reader = new Scanner(process.getInputStream(), "UTF-8");
      while(reader.hasNextLine()) {
         if(reader.nextLine().contains("RUNNING")) {
           return true;
         }
      }
     } catch (IOException e) {
         e.printStackTrace();
     }            
     return false;
}