Develop Reference

How to authenticate using username/password/domain via ManagementScope

Have a utility I wrote that checks (among other things) the last time a set of servers was rebooted. This works great as long as the servers are all within my domain and the user launching the app have rights on the servers. Added a section where the user can specify alternative credentials, in our case specifically to deal with another domain. The credentials I am feeding into have domain admin rights on the destination domain, yet my code is getting an Access Denied (Unauthorized Access) error.
thanks!
private void btnLastReboot_Click(object sender, EventArgs e)
{
ConnectionOptions conOpts = new ConnectionOptions();
if (selectedList.Count > 0)
{
Cursor currentCursor = Cursor.Current;
Cursor.Current = Cursors.WaitCursor;
stripProgress.Visible = true;
stripProgress.Minimum = 0;
stripProgress.Maximum = selectedList.Count();
stripProgress.Step = 1;
stripProgress.Value = 0;
rtfOut.SelectionTabs = new int[] { 100, 200 };
rtfOut.Text = "";
var sq = new SelectQuery("Win32_OperatingSystem");
if (prefs.useCurrentUser == true)
{
// Setting all fields to NULL causes current user info to be used
conOpts.Username = null;
conOpts.Password = null;
conOpts.Authority = null;
}
else
{
conOpts.Username = prefs.userName;
conOpts.Password = prefs.password.ToString();
conOpts.Authority = "ntlmdomain:" + prefs.domain;
}
foreach (ServerList anEntry in selectedList)
{
stripProgress.Value++;
try
{
var mgmtScope = new ManagementScope("\\\\" + anEntry.ServerName + "\\root\\cimv2", conOpts);
mgmtScope.Connect();
var mgmtSearcher = new ManagementObjectSearcher(mgmtScope, sq);
foreach (var item in mgmtSearcher.Get())
{
var lastBoot = item.GetPropertyValue("LastBootUpTime").ToString();
DateTime lboot = ManagementDateTimeConverter.ToDateTime(lastBoot);
rtfOut.Text += anEntry.ServerName + "\t";
if(anEntry.ServerName.Length <= 9)
{
rtfOut.Text += "\t";
}
rtfOut.Text += lboot.ToLongDateString() + " (" + lboot.ToLongTimeString() + ")\r\n";
}
}
catch (Exception ex)
{
if (ex is UnauthorizedAccessException)
{
rtfOut.Text += anEntry.ServerName + "\t <Access Denied>\r\n";
}
else
{
rtfOut.Text += anEntry.ServerName + "\t <not responding>\r\n";
}
}
}
stripProgress.Visible = false;
Cursor.Current = currentCursor;
}
}

Had to sleep on it, but the answer finally hit me in the shower...
I store the password the user provides in a SecureString variable, but the ConnectionOptions' password field expects the value as a clear string. I was able to test this by temporarily hard coding a password in, which then worked. The final solution was to convert the SecureString to a clear string and then assign it to the ConnectionOption.
If anyone is curious, I used this bit to convert the password back:
string password = new System.Net.NetworkCredential(string.Empty, securePassword).Password;

C# WCF Multiple clients receive all the same data

my problem is that i have a WCF Service and multip
le clients can connect/subscribe to that service and get all Random Data
trough Callback with the service...a Timer starts when a clients subscribed to the service, the thing is that every client then gets all not the same data but thats what i want to achieve...what am i doing wrong?
This is what happens when one client subscribed to the service:
public SubscribeResult Subscribe()
{
SubscribeResult retVal = new SubscribeResult();
try
{
retVal.ClientID = Guid.NewGuid().ToString();
clientID = retVal.ClientID;
ServiceCallback = OperationContext.Current.GetCallbackChannel<ITraceCallback>();
ti = new Timer();
ti.Elapsed += Ti_Elapsed;
ti.Interval = 1000;
ti.Enabled = true;
ti.Start();
retVal.Success = true;
SubscribeClientList.Add(new SubscribeItem {CLIENTID = clientID, SENT = true });
connectedClients += 1;
}
catch (Exception ex)
{
retVal.Success = false;
Console.WriteLine("Something went horribly wrong! \n" + ex.Message);
}
return retVal;
}
And this is what happens when the timer hits zero :
private void Ti_Elapsed(object sender, ElapsedEventArgs e)
{
try
{
if (isSending == false)
{
isSending = true;
// generate message
CreateRandomString crs = new CreateRandomString();
string msg = crs.CreateString(rnd.Next(15, 25));
// increase entry
entry += 1;
// create timestamp of creation
DateTime creation = DateTime.Now;
// generate level
int muchwow = rnd.Next(1, 4);
string lvl = "undefined";
switch (muchwow)
{
case 1:
lvl = "Error";
break;
case 2:
lvl = "Warning";
break;
case 3:
lvl = "Information";
break;
}
bool sucess = ServiceCallback.Message(entry, creation, lvl, msg);
if (sucess == true)
{
CreateRandomString messagePreview = new CreateRandomString();
string prev = messagePreview.TruncString(msg, 20);
Console.WriteLine("[" + DateTime.Now + "] : [" + clientID + "] : " + "'" + prev + "' : " + "(" + lvl + ")");
sucess = false;
}
isSending = false;
}

Windows Service Stuck on "Starting"

I've just created and installed my first Windows Service. When I start the service is never changes it's status to "Started". The status stays "Starting" but the service is doing it's job. I thought that perhaps the way I'm interacting with the OnStart method. I simply get the OnStart method to call another method that executes fine. Here is a sample:
protected override void OnStart(string[] args)
{
try {
Logger("Start");
}
catch (Exception ex)
{
string filePath2 = #"C:/ProgramData/Error.txt";
using (StreamWriter writer = new StreamWriter(filePath2, true))
{
writer.WriteLine(DateTime.Now + Environment.NewLine + "Message: " + ex.ToString() + Environment.NewLine + "Stack Trace: " + ex.StackTrace);
}
}
}
What would I need to change to get the client to register that the service has started and is running. PS, the service is doing what it's meant to do.
Thanks in advance for any and all help!
EDIT
This is what Logger does:
public void Logger(string state)
{
try
{
{
Random a = new Random(Environment.TickCount);
//unique name PhoneSystem.ApplicationName = "TestApi";//any name
PhoneSystem.ApplicationName = PhoneSystem.ApplicationName + a.Next().ToString();
}
#region phone system initialization(init db server)
String filePath = #"C:/ProgramData/3CXLogger/3CXPhoneSystem.ini";
if (!File.Exists(filePath))
{
//this code expects 3CXPhoneSystem.ini in current directory.
//it can be taken from the installation folder (find it in Program Files/3CXPhone System/instance1/bin for in premiss installation)
//or this application can be run with current directory set to location of 3CXPhoneSystem.ini
//v14 (cloud and in premiss) installation has changed folder structure.
//3CXPhoneSystem.ini which contains connectio information is located in
//<Program Files>/3CX Phone System/instanceN/Bin folder.
//in premiss instance files are located in <Program Files>/3CX Phone System/instance1/Bin
throw new Exception("Cannot find 3CXPhoneSystem.ini");
}
String value = _3cxLogger.Utilities.GetKeyValue("ConfService", "ConfPort", filePath);
Int32 port = 0;
if (!String.IsNullOrEmpty(value))
{
Int32.TryParse(value.Trim(), out port);
PhoneSystem.CfgServerPort = port;
}
value = _3cxLogger.Utilities.GetKeyValue("ConfService", "confUser", filePath);
if (!String.IsNullOrEmpty(value))
PhoneSystem.CfgServerUser = value;
value = _3cxLogger.Utilities.GetKeyValue("ConfService", "confPass", filePath);
if (!String.IsNullOrEmpty(value))
PhoneSystem.CfgServerPassword = value;
#endregion
DN[] ps = PhoneSystem.Root.GetDN(); //Access PhoneSystem.Root to initialize ObjectModel
//_3cxLogger.SampleStarter.StartSample(args);
}
catch (Exception ex)
{
string filePath2 = #"C:\ProgramData\3CXLogger\Error.txt";
using (StreamWriter writer = new StreamWriter(filePath2, true))
{
writer.WriteLine(DateTime.Now + Environment.NewLine + "Message: " + ex.ToString() + Environment.NewLine + "Stack Trace: " + ex.StackTrace);
}
//Console.WriteLine(ex.ToString());
}
string constring = "Data Source = LEWCOMP1\\COMPLIANCE; Initial Catalog = 3CXCallStats; Integrated Security = True";
while (state == "Start")
{
Thread.Sleep(5000);
int count = 0;
foreach (DN dn in PhoneSystem.Root.GetDN())
{
ActiveConnection[] a = dn.GetActiveConnections();
foreach (ActiveConnection ac in a)
{
try
{
if (ac.Status == ConnectionStatus.Connected)
{
count = count + 1;
}
}
catch (Exception ex)
{
//Console.WriteLine(ex.Message + Environment.NewLine + ex.StackTrace + Environment.NewLine + ex.Source);
string filePath2 = #"C:\ProgramData\3CXLogger\Error.txt";
using (StreamWriter writer = new StreamWriter(filePath2, true))
{
writer.WriteLine(DateTime.Now + Environment.NewLine + "Message: " + ex.ToString() + Environment.NewLine + "Stack Trace: " + ex.StackTrace);
}
}
}
}
count = count / 2;
string update = "UPDATE callsCounter SET Counter = '" + count + "' WHERE ID='1';";
string insert = "INSERT Interval_Counter (Date_Time, Count) VALUES ('" + DateTime.Now + "','" + count + "')";
SqlConnection myCon = new SqlConnection(constring);
SqlCommand updateCMD = new SqlCommand(update, myCon);
SqlCommand insertCMD = new SqlCommand(insert, myCon);
SqlDataReader myReaderUpdate;
SqlDataReader myReaderInsert;
myCon.Open();
myReaderUpdate = updateCMD.ExecuteReader();
myReaderUpdate.Read();
myCon.Close();
myCon.Open();
myReaderInsert = insertCMD.ExecuteReader();
myReaderInsert.Read();
myCon.Close();
}
}
Additionaly, I checked the event logs and there are events for the service has successfully started. Odd.

Thanks for all the help!
I created a new class and started a new thread that targeted the method.
protected override void OnStart(string[] args)
{
Log oLog = new Log();
Thread t = new Thread(new ThreadStart(oLog.Logger));
t.Start();
}

Unable to remotely terminate a process using WMI and C#

I am trying to write a method that will terminate a service on a remote system, by process ID, if it fails to stop using the StopService method. I have tried two different ways of invoking the "Terminate" method on a ManagementObject, and I get two different errors. It's also important to me that I be able to get the return code from the Terminate method.
If I declare a ManagementPath directly to the process I want to terminate, I get the error "System.Management.ManagementException: Invalid object path" at line:
ManagementBaseObject processParams = processObj.InvokeMethod("Terminate", (ManagementBaseObject)null, null);
If I get a ManagementObjectCollection and loop through it looking for the Process ID I want to terminate, I get the error "Invalid parameter" at line:
ManagementBaseObject termParams = currentObj.InvokeMethod("Terminate", (ManagementBaseObject)null, null);
So, in both cases, I get an error when I try to invoke the Terminate method, but the error differs depending on how I arrive at the object (direct path or loop through collection).
I don't think this is related to SeDebugPrivilege, as I believe I'd be getting "access denied" or "insufficient privilege" if it was.
Code if I attempt to directly specify the path to the process:
public int KillServiceWMI(string serviceName, string serverName, string serverUser, string serverDomain, string serverPassword)
{
try
{
ConnectionOptions options = new ConnectionOptions();
options.Impersonation = System.Management.ImpersonationLevel.Impersonate;
options.Username = serverDomain + "\\" + serverUser;
options.Password = serverPassword;
ManagementScope scope = new ManagementScope("\\\\" + serverName + "\\root\\cimv2", options);
Console.WriteLine("Connecting to scope");
scope.Connect();
Console.WriteLine("Getting ManagementPath");
ManagementPath servicePath = new ManagementPath("Win32_Service.Name='" + serviceName + "'");
Console.WriteLine("Getting ManagementObject");
ManagementObject serviceObj = new ManagementObject(scope, servicePath, new ObjectGetOptions());
Console.WriteLine("Name of service is " + serviceObj["DisplayName"].ToString());
Console.WriteLine("Process ID of service is " + serviceObj["ProcessId"].ToString());
ManagementPath processPath = new ManagementPath("Win32_Process.ProcessId='" + serviceObj["ProcessId"] + "'");
ManagementObject processObj = new ManagementObject(scope, processPath, new ObjectGetOptions());
ManagementBaseObject processParams = processObj.InvokeMethod("Terminate", (ManagementBaseObject)null, null);
int returnCode = System.Convert.ToInt32(processParams.Properties["ReturnValue"].Value);
return returnCode;
}
catch (Exception connectEx)
{
Console.WriteLine("Connecting to " + serverName + " caused an exception");
Console.Write(connectEx);
return 99;
}
}
Code if I loop through a collection of processes:
public int KillServiceWMI(string serviceName, string serverName, string serverUser, string serverDomain, string serverPassword)
{
try
{
ConnectionOptions options = new ConnectionOptions();
options.Impersonation = System.Management.ImpersonationLevel.Impersonate;
options.Username = serverDomain + "\\" + serverUser;
options.Password = serverPassword;
ManagementScope scope = new ManagementScope("\\\\" + serverName + "\\root\\cimv2", options);
Console.WriteLine("Connecting to scope");
scope.Connect();
Console.WriteLine("Getting ManagementPath");
ManagementPath servicePath = new ManagementPath("Win32_Service.Name='" + serviceName + "'");
Console.WriteLine("Getting ManagementObject");
ManagementObject serviceObj = new ManagementObject(scope, servicePath, new ObjectGetOptions());
Console.WriteLine("Name of service is " + serviceObj["DisplayName"].ToString());
Console.WriteLine("Process ID of service is " + serviceObj["ProcessId"].ToString());
ObjectQuery serviceQuery = new ObjectQuery("SELECT * from Win32_Process WHERE ProcessID = '" + serviceObj["ProcessId"].ToString() + "'");
ManagementObjectSearcher serviceSearcher = new ManagementObjectSearcher(scope, serviceQuery);
ManagementObjectCollection serviceColl = serviceSearcher.Get();
int returnCode = 0;
foreach (ManagementObject currentObj in serviceColl)
{
if (currentObj["ProcessId"].ToString().Equals(serviceObj["ProcessId"].ToString(), StringComparison.OrdinalIgnoreCase))
{
Console.WriteLine("Found process " + currentObj["ProcessId"].ToString() + ". Terminating...");
ManagementBaseObject termParams = currentObj.InvokeMethod("Terminate", (ManagementBaseObject)null, null);
returnCode = System.Convert.ToInt32(termParams.Properties["ReturnValue"].Value);
}
}
return returnCode;
}
catch (Exception connectEx)
{
Console.WriteLine("Connecting to " + vaultName + " caused an exception");
Console.Write(connectEx);
return 99;
}
}

I eventually gave up trying to use the Terminate method on Win32_Process, and instead I'm using Create to call TaskKill.exe remotely. Because the return info is now hidden behind taskkill.exe, I then have to get the process list again and look for the target pid to make sure that the process was actually terminated.
ConnectionOptions options = new ConnectionOptions();
options.Impersonation = System.Management.ImpersonationLevel.Impersonate;
options.Username = serverDomain + "\\" + serverUser;
options.Password = serverPassword;
ManagementScope scope = new ManagementScope("\\\\" + serverName + "\\root\\cimv2", options);
Console.WriteLine("Connecting to scope");
scope.Connect();
Console.WriteLine("Getting ManagementPath");
ManagementPath servicePath = new ManagementPath("Win32_Service.Name='" + serviceName + "'");
Console.WriteLine("Getting ManagementObject");
ManagementObject serviceObj = new ManagementObject(scope, servicePath, new ObjectGetOptions());
Console.WriteLine("Name of service is " + serviceObj["DisplayName"].ToString());
Console.WriteLine("Process ID of service is " + serviceObj["ProcessId"].ToString());
// use processid to kill process with taskkill
ObjectGetOptions processObjGetOpt = new ObjectGetOptions();
ManagementPath processPath = new ManagementPath("Win32_Process");
ManagementClass processClass = new ManagementClass(scope, processPath, processObjGetOpt);
ManagementBaseObject processInParams = processClass.GetMethodParameters("Create");
processInParams["CommandLine"] = string.Format("cmd /c \"taskkill /f /pid {0}\"", serviceObj["ProcessId"].ToString());
ManagementBaseObject outParams = processClass.InvokeMethod("Create", processInParams, null);
Console.WriteLine("Return code for taskkill: " + outParams["returnValue"]);
int returnCode = System.Convert.ToInt32(outParams["returnValue"]);

MSMQ System.Messaging high resource usage

I have make C# console application which uses timer which connects to MSMQ every 10 seconds get data insert into Oracle database. But the issue is that it log in and log off to domain and create high CPU also create security audit log very much which waste my resources.
My console application runs with task schedule. Code is below
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Messaging;
using System.Xml;
using System.IO;
using System.Timers;
using Oracle.DataAccess.Client;
using System.Data;
namespace MSMQ_News
{
class Program
{
private static System.Timers.Timer aTimer;
static void Main(string[] args)
{
try
{
// Create a timer with a ten second interval.
aTimer = new System.Timers.Timer(60000);//10000
// Hook up the Elapsed event for the timer.
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
// Set the Interval to 2 seconds (2000 milliseconds).
//aTimer.Interval = 10000;
aTimer.Enabled = true;
aTimer.Start();
Console.WriteLine("Press the Enter key to exit the program.");
Console.ReadLine();
}
catch (Exception ex)
{
Log(" From Main -- " + ex.Message);
}
}
private static void OnTimedEvent(object source, ElapsedEventArgs e)
{
// Just in case someone wants to inherit your class and lock it as well ...
object _padlock = new object();
try
{
aTimer.Stop();
lock (_padlock)
{
Console.WriteLine("The Elapsed event was raised at {0}", e.SignalTime);
ProcessQueueMsgs();
}
}
catch (Exception ex)
{
Log(" From OnTimedEvent -- " + ex.Message);
}
finally
{
aTimer.Start();
}
}
private static void ProcessQueueMsgs()
{
try
{
while ((DateTime.Now.Hour >= 06)
&& (DateTime.Now.Hour <= 16))
{
DateTime dt = DateTime.Now;
ReceiveNewsDetail(dt);
ReceiveNewsHeader(dt);
}
CloseApp();
}
catch (Exception ex)
{
Log(" From ProcessQueueMsgs -- " + ex.Message);
}
}
static bool QueueExist(string QueueName)
{
try
{
if (MessageQueue.Exists(QueueName))
return true;
else
return false;
}
catch (Exception ex)
{
Log(" From QueueExist -- " + ex.Message);
return false;
}
}
private static void ReceiveNewsHeader(DateTime dt)
{
try
{
MessageQueue mqNewsHeader = null;
string value = "", _tmp = "";
_tmp = "<newsHeader></newsHeader> ";
/*if (QueueExist(#".\q_ws_ampnewsheaderrep"))*/
mqNewsHeader = new MessageQueue(#".\q_ws_ampnewsheaderrep");
int MsgCount = GetMessageCount(mqNewsHeader, #".\q_ws_ampnewsheaderrep");
for (int i = 0; i < MsgCount; i++)
{
Message Msg = mqNewsHeader.Receive();
Msg.Formatter = new ActiveXMessageFormatter();
//need to do this to avoid ??? for arabic characters
using (StreamReader strdr = new StreamReader(Msg.BodyStream, System.Text.Encoding.Default))
{
value = strdr.ReadToEnd();
}
value = value.Replace("\0", String.Empty);
if (value != _tmp)
{
LoadNewsHeader(value, dt);
}
}
}
catch (Exception ex)
{
Log("From ReceiveNewsHeader -- " + ex.Message);
}
}
private static void ReceiveNewsDetail(DateTime dt)
{
try
{
MessageQueue mqNewsDetails = null;
string value = "", _tmp = "";
_tmp = "<news></news> ";
/*if (QueueExist(#".\q_ws_ampnewsrep"))*/
mqNewsDetails = new MessageQueue(#".\q_ws_ampnewsrep");
int MsgCount = GetMessageCount(mqNewsDetails, #".\q_ws_ampnewsrep");
for (int i = 0; i < MsgCount; i++)
{
Message Msg = mqNewsDetails.Receive();
Msg.Formatter = new ActiveXMessageFormatter();
//need to do this to avoid ??? for arabic characters
using (StreamReader strdr = new StreamReader(Msg.BodyStream, System.Text.Encoding.Default))
{
value = strdr.ReadToEnd();
}
value = value.Replace("\0", String.Empty);
if (value != _tmp)
{
LoadNewsDetail(value, dt);
}
}
}
catch (Exception ex)
{
Log("From ReceiveNewsDetail -- " + ex.Message);
}
}
private static void LoadNewsHeader(string text , DateTime dt)
{
try
{
//text = ReplaceSpecialCharacters(text);
//text = Clean(text);
//XmlDocument _xmlDoc = new XmlDocument();
//_xmlDoc.LoadXml(text);
//string fileName = "NewsHeader.xml";
text = text.Replace("<arabicFields>", "<arabicFields>\n\t\t");
//createXMLFile(fileName, text);
XmlDocument _xmlDoc = LoadXMLDoc(text);
string SQL = "";
XmlNodeList newsHeaderList = _xmlDoc.SelectNodes("newsHeader/newsHeaderRep");
if (newsHeaderList.Count > 0)
{
OracleParameter pTRUNCATE = new OracleParameter("P_TABLE_NAME", OracleDbType.Varchar2);
pTRUNCATE.Value = "COMPANIES_NEWS";
DatabaseOperation(CommandType.StoredProcedure, "TRUNCATE_TABLE", pTRUNCATE);
}
foreach (XmlNode news in newsHeaderList)
{
XmlNodeList newsIdList = news.SelectNodes("newsId");
SQL = "Insert into COMPANIES_NEWS(NewsID, NewsID_SEQNO, NEWSSTATUS, LANGUAGE_CD, SEC_CD, RELEASEDATE, RELEASETIME, TITLE, STG_TIME) Values(";
foreach (XmlNode newsId in newsIdList)
{
SQL += "'" + newsId["id"].InnerText + "',";
SQL += "" + newsId["seqNo"].InnerText + ",";
}
SQL += "'" + news["newsStatus"].InnerText + "',";
XmlNodeList newsItemList = news.SelectNodes("newsItem");
foreach (XmlNode newsItem in newsItemList)
{
SQL += "'" + newsItem["languageId"].InnerText + "',";
if (newsItem["reSecCode"] != null)
SQL += "'" + newsItem["reSecCode"].InnerText + "',";
else
SQL += "' ',";
XmlNodeList releaseTimeList = newsItem.SelectNodes("releaseTime");
foreach (XmlNode releaseTime in releaseTimeList)
{
SQL += "TO_DATE('" + releaseTime["date"].InnerText + "','YYYYMMDD'),";
SQL += "" + releaseTime["time"].InnerText + ",";
}
}
XmlNodeList arabicFieldsList = news.SelectNodes("arabicFields");
foreach (XmlNode arabicFields in arabicFieldsList)
{
SQL += "'" + RevertSpecialCharacters(arabicFields["title_AR"].InnerText) + "',";
}
SQL += "TO_DATE('" + dt.ToString() + "','MM/DD/YYYY HH12:MI:SS PM'))";
DatabaseOperation(CommandType.Text, SQL, null);
Console.WriteLine("Header : " + DateTime.Now.ToString());
}
if (SQL != "") //RecordCount("Select Count(*) from COMPANIES_NEWS_DETAILS") > 0
{
OracleParameter pREFRESH = new OracleParameter("P_TABLE_NAMEs", OracleDbType.Varchar2);
pREFRESH.Value = "COMPANIES_NEWS";
DatabaseOperation(CommandType.StoredProcedure, "REFRESH_VW_ALL", pREFRESH);
}
}
catch (Exception ex)
{
Log("From LoadNewsHeader -- " + ex.Message);
}
}
private static void LoadNewsDetail(string text, DateTime dt)
{
try
{
//string fileName = "NewsDetail.xml";
text = text.Replace("<arabicFields>", "<arabicFields>\n\t\t");
//text = createXMLFile(fileName);
//text = text.Replace("<arabicFields>", "<arabicFields>\n\t\t");
XmlDocument _xmlDoc = LoadXMLDoc(text);
string SQL = "";
XmlNodeList newsList = _xmlDoc.SelectNodes("news/newsRep");
if (newsList.Count > 0)
{
OracleParameter pTRUNCATE = new OracleParameter("P_TABLE_NAME", OracleDbType.Varchar2);
pTRUNCATE.Value = "COMPANIES_NEWS_DETAILS";
DatabaseOperation(CommandType.StoredProcedure, "TRUNCATE_TABLE", pTRUNCATE);
}
foreach (XmlNode news in newsList)
{
XmlNodeList newsIdList = news.SelectNodes("newsId");
SQL = "Insert into Companies_news_details(NewsID_ID, NewsID_SEQNO, NewsText_1,NewsText_2,STG_TIME) Values(";
foreach (XmlNode newsId in newsIdList)
{
SQL += "" + newsId["id"].InnerText + ",";
SQL += "" + newsId["seqNo"].InnerText + ",";
}
XmlNodeList arabicFieldsList = news.SelectNodes("arabicFields");
foreach (XmlNode arabicFields in arabicFieldsList)
{
// Log(" Before Arabic Text Data -- :" + arabicFields["newsText_AR"].InnerText);
if (arabicFields["newsText_AR"].InnerText.Length > 4000)
{
SQL += "'" + RevertSpecialCharacters(arabicFields["newsText_AR"].InnerText.Substring(0, 3999)).Replace("\n",Environment.NewLine) + "',";
SQL += "'" + RevertSpecialCharacters(arabicFields["newsText_AR"].InnerText.Substring(3999, arabicFields["newsText_AR"].InnerText.Length)).Replace("\n", Environment.NewLine) + "',";
SQL += "TO_DATE('" + dt.ToString() + "','MM/DD/YYYY HH12:MI:SS PM')";
}
else
{
SQL += "'" + RevertSpecialCharacters(arabicFields["newsText_AR"].InnerText).Replace("\n", Environment.NewLine) + "','',";
SQL += "TO_DATE('" + dt.ToString() + "','MM/DD/YYYY HH12:MI:SS PM')";
}
SQL += ")";
DatabaseOperation(CommandType.Text, SQL, null);
Console.WriteLine("Detail : " + DateTime.Now.ToString());
}
}
if (SQL != "") //RecordCount("Select Count(*) from COMPANIES_NEWS_DETAILS") > 0
{
OracleParameter pREFRESH = new OracleParameter("P_TABLE_NAMEs", OracleDbType.Varchar2);
pREFRESH.Value = "COMPANIES_NEWS_DETAILS";
DatabaseOperation(CommandType.StoredProcedure, "REFRESH_VW_ALL", pREFRESH);
}
}
catch (Exception ex)
{
Log("From LoadNewsDetail -- " + ex.Message);
}
}
private static void CloseApp()
{
System.Environment.Exit(0);
}
protected static int GetMessageCount(MessageQueue q, string queueName)
{
var _messageQueue = new MessageQueue(queueName, QueueAccessMode.Peek);
_messageQueue.Refresh(); //done to get the correct count as sometimes it sends 0
var x = _messageQueue.GetMessageEnumerator2();
int iCount = 0;
while (x.MoveNext())
{
iCount++;
}
return iCount;
}
private static void DatabaseOperation(CommandType cmdType, string SQL, OracleParameter param)
{
string oracleConnectionString = System.Configuration.ConfigurationSettings.AppSettings["OracleConnectionString"];
using (OracleConnection con = new OracleConnection())
{
con.ConnectionString = oracleConnectionString;
con.Open();
OracleCommand command = con.CreateCommand();
command.CommandType = cmdType;
command.CommandText = SQL;
if (param != null)
command.Parameters.Add(param);
command.ExecuteNonQuery();
command.Dispose();
con.Close();
}
}
private static String RevertSpecialCharacters(string pValue)
{
string _retVal = String.Empty;
_retVal = pValue.Replace("'", "''");
return _retVal;
}
public static void Log(string Message)
{
// Create a writer and open the file:
StreamWriter log;
//C:\Software\MSMQ_New_News_Fix
if (!File.Exists(#"C:\MSMQ_New_News_Fix\log.txt"))
{
log = new StreamWriter(#"C:\MSMQ_New_News_Fix\log.txt");
}
else
{
log = File.AppendText(#"C:\MSMQ_New_News_Fix\log.txt");
}
// Write to the file:
log.WriteLine(DateTime.Now.ToString() + " : " + Message);
// Close the stream:
log.Close();
}
public static XmlDocument LoadXMLDoc(string xmlText)
{
XmlDocument doc = new XmlDocument();
try
{
string xmlToLoad = ParseXMLFile(xmlText);
doc.LoadXml(xmlToLoad);
}
catch (Exception ex)
{
Log("From LoadXMLDoc -- " + ex.Message);
}
return doc;
}
private static string ParseXMLFile(string xmlText)
{
StringBuilder formatedXML = new StringBuilder();
try
{
StringReader xmlReader = new StringReader(xmlText);
while (xmlReader.Peek() >= 0)
formatedXML.Append(ReplaceSpecialChars(xmlReader.ReadLine()) + "\n");
}
catch (Exception ex)
{
Log("From ParseXMLFile -- " + ex.Message);
}
return formatedXML.ToString();
}
private static string ReplaceSpecialChars(string xmlData)
{
try
{
//if (xmlData.Contains("objectRef")) return "<objectRef></objectRef>";
int grtrPosAt = xmlData.IndexOf(">");
int closePosAt = xmlData.IndexOf("</");
int lenthToReplace = 0;
if (grtrPosAt > closePosAt) return xmlData;
lenthToReplace = (closePosAt <= 0 && grtrPosAt <= 0) ? xmlData.Length : (closePosAt - grtrPosAt) - 1;
//get the string between xml element. e.g. <ContactName>Hanna Moos</ContactName>,
//you will get 'Hanna Moos'
string data = xmlData.Substring(grtrPosAt + 1, lenthToReplace);
string formattedData = data.Replace("&", "&").Replace("<", "<")
.Replace(">", ">").Replace("'", "&apos;");
if (lenthToReplace > 0) xmlData = xmlData.Replace(data, formattedData);
return xmlData;
}
catch (Exception ex)
{
Log("From ReplaceSpecialChars -- " + ex.Message);
return "";
}
}
}
}
How can i solve above issue

Why not host your queue reader process in a windows service. This will continually poll the queue each 10 seconds.
Then use the windows scheduler to start/stop the service at relevant times to create your service window.
This means you won't need to do anything complicated in your scheduled task, and you won't be loading and unloading all the time.

Well from logic you are very correct that I should make windows service not timer service and Task schedule.
But my question was why It is login / log out frequently, which waste the resource of my Domain server. After intense investigation, I found that calling QueueExits is resource critical. Another thing what I found is that when you connect MSMQ queue you are login to share resource, which will login to Domain. As my code was running every 10-20 seconds it was wasting my Domain server resources.
For resolution, I make my MessageQueue object globally in following way
private static MessageQueue mqNewsHeader = new MessageQueue(#".\q_ws_ampnewsheaderrep");
private static MessageQueue mqNewsDetails = new MessageQueue(#".\q_ws_ampnewsrep");
So it will create Once in the life of the Application and we will log in and log out only once. Then I will pass this object to the function as parameter. I see also that my MessageQueue count function was also resource critical, So I change it to following
protected static int GetMessageCount(MessageQueue q)
{
//var _messageQueue = new MessageQueue(queueName, QueueAccessMode.Peek);
//_messageQueue.Refresh(); //done to get the correct count as sometimes it sends 0
// var x = _messageQueue.GetMessageEnumerator2();
int iCount = q.GetAllMessages().Count();
// while (x.MoveNext())
// {
// iCount++;
// }
return iCount;
}
Hope this clear my answer and will help others also.