private static void TryKey(RegistryKey k1, LocalInstanceInfo ret, string instanceName)
{
string rawVersion = null;
using (RegistryKey rk = k1.OpenSubKey(@"MSSQLServer\CurrentVersion", false))
if (rk != null)
{
rawVersion = rk.GetValue("CurrentVersion") as string;
}
/*
* string rawPath = null;
* using (RegistryKey rk = k1.OpenSubKey(@"Setup", false))
* if (rk != null)
* rawPath = rk.GetValue("SQLPath") as string;
*/
if (!string.IsNullOrEmpty(rawVersion) /* && rawPath != null && Directory.Exists(rawPath) */)
{
try
{
Version ver = new Version(rawVersion);
var i = new LocalInstanceInfo.SqlInstance(instanceName);
i.FileVer = ver;
ret.Instances.Add(i);
}
catch
{
}
}
}
private static void GetList(LocalInstanceInfo ret)
{
using (RegistryKey lm = Registry.LocalMachine)
{
// default instance
using (RegistryKey k0 = lm.OpenSubKey(@"SOFTWARE\Microsoft\MSSQLServer"))
if (k0 != null)
{
TryKey(k0, ret, string.Empty);
}
// named instances
using (RegistryKey k1 = lm.OpenSubKey(@"SOFTWARE\Microsoft\Microsoft SQL Server", false))
if (k1 != null)
{
foreach (string subKeyName in new List <string>(k1.GetSubKeyNames() ?? new string[0]))
{
using (RegistryKey candidate = k1.OpenSubKey(subKeyName))
if (candidate != null)
{
TryKey(candidate, ret, subKeyName);
}
}
}
}
}
public static LocalInstanceInfo Get()
{
LocalInstanceInfo ret = new LocalInstanceInfo();
GetList(ret);
var filtered = new List <LocalInstanceInfo.SqlInstance>();
foreach (LocalInstanceInfo.SqlInstance i in ret.Instances)
{
string path;
Version version;
ServiceControllerStatus status;
if (TryService(LocalInstanceInfo.GetServiceKey(i.Name), out path, out version, out status))
{
i.Status = status;
filtered.Add(i);
}
}
ret.Instances.Clear();
ret.Instances.AddRange(filtered);
ret.SortByVersionDescending();
return(ret);
}
/*
* static LocalInstancesDiscovery()
* {
* try
* {
* LocalInstanceInfo i = new LocalInstanceInfo();
* StringBuilder dump = new StringBuilder();
* var stringWriter = new StringWriter(dump);
* i.WriteToXml(stringWriter);
* Trace.WriteLine("");
* }
* catch (Exception)
* {
* }
* }
*/
public static LocalInstanceInfo GetFull(TimeSpan timeout)
{
LocalInstanceInfo ret = new LocalInstanceInfo();
GetList(ret);
BuildDescription(ret, timeout);
ret.SortByVersionDescending();
return(ret);
}
static void BuildDescription(LocalInstanceInfo info, TimeSpan timeout)
{
if (info.Instances.Count > 0)
{
List <ManualResetEvent> events = new List <ManualResetEvent>();
foreach (LocalInstanceInfo.SqlInstance instance in info.Instances)
{
// description
LocalInstanceInfo.SqlInstance sqlInstance = instance;
ManualResetEvent ev = new ManualResetEvent(false);
events.Add(ev);
ThreadPool.QueueUserWorkItem(
delegate
{
try
{
// Console.WriteLine(i2.FullLocalName + ": " + Thread.CurrentThread.ManagedThreadId);
// Thread.Sleep(3000);
string fullPath;
Version productVersion;
ServiceControllerStatus status;
if (TryService(LocalInstanceInfo.GetServiceKey(sqlInstance.Name), out fullPath, out productVersion, out status))
{
sqlInstance.Status = status;
sqlInstance.Ver = productVersion;
if (sqlInstance.Status == ServiceControllerStatus.Running)
{
string cs = "Data Source=" + sqlInstance.FullLocalName + ";Integrated Security=SSPI;Pooling=False;";
using (SqlConnection con = new SqlConnection(cs))
using (SqlCommand cmd = new SqlCommand("Select @@version, SERVERPROPERTY('ProductLevel'), SERVERPROPERTY('Edition')", con))
{
cmd.CommandTimeout = (int)timeout.TotalSeconds;
con.Open();
using (SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.SingleRow))
{
if (rdr.Read())
{
string description = (string)rdr.GetString(0);
string level = (string)rdr.GetString(1);
string edition = (string)rdr.GetString(2);
description =
description.Replace("\t", " ").Replace("\r", " ").Replace("\n", " ");
while (description.IndexOf(" ") >= 0)
{
description = description.Replace(" ", " ");
}
sqlInstance.IsOK = true;
sqlInstance.Description = description;
sqlInstance.Level = level;
bool isExpress =
edition.IndexOf("Desktop Engine") >= 0 ||
edition.IndexOf("Express Edition") >= 0;
sqlInstance.Edition = isExpress ? SqlEdition.Express : SqlEdition.LeastStandard;
}
}
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine(
"Failed to connect to " + sqlInstance.FullLocalName + ". See Details Below" + Environment.NewLine +
ex + Environment.NewLine);
}
finally
{
ev.Set();
}
});
} // done: description
WaitHandle.WaitAll(events.ToArray());
List <LocalInstanceInfo.SqlInstance> normal = info.Instances.FindAll(delegate(LocalInstanceInfo.SqlInstance i) { return(i.Ver != null); });
info.Instances.Clear();
info.Instances.AddRange(normal);
}
}