public MonitorStates GetState(PingResult pingResult)
{
MonitorStates result = MonitorStates.Good;
if (pingResult.Success)
{
if (pingResult.PingTime > TimeOut)
{
result = MonitorStates.Error;
}
else if (pingResult.PingTime > MaxTime)
{
result = MonitorStates.Warning;
}
else
{
result = MonitorStates.Good;
}
}
else
{
result = MonitorStates.Error;
}
return(result);
}
private void RefreshList()
{
System.Windows.Forms.Cursor.Current = Cursors.WaitCursor;
lvwHosts.BeginUpdate();
foreach (ListViewItem itmX in lvwHosts.Items)
{
HostEntry host = (HostEntry)itmX.Tag;
try
{
PingResult pingResult = host.Ping();
MonitorStates result = host.GetState(pingResult);
if (pingResult.Success)
{
itmX.SubItems[1].Text = pingResult.PingTime.ToString();
itmX.SubItems[2].Text = pingResult.LastErrorMsg;
if (result == MonitorStates.Good)
{
itmX.ImageIndex = 0;
itmX.BackColor = SystemColors.Window;
}
else if (result == MonitorStates.Warning)
{
itmX.ImageIndex = 1;
itmX.BackColor = Color.SandyBrown;
}
else
{
itmX.ImageIndex = 2;
itmX.BackColor = Color.Salmon;
}
}
else
{
itmX.ImageIndex = 2;
itmX.BackColor = Color.Salmon;
itmX.SubItems[1].Text = "Err";
itmX.SubItems[2].Text = pingResult.LastErrorMsg;
}
}
catch (Exception ex)
{
itmX.ImageIndex = 2;
itmX.SubItems[1].Text = "Err";
itmX.SubItems[2].Text = ex.Message;
itmX.BackColor = Color.Salmon;
}
}
lvwHosts.EndUpdate();
System.Windows.Forms.Cursor.Current = Cursors.Default;
toolStripStatusLabel1.Text = "Last updated " + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
}
public PingResult Ping()
{
PingResult result = new PingResult();
result.Success = false;
result.PingTime = -1;
result.LastErrorMsg = "";
try
{
using (System.Net.NetworkInformation.Ping ping = new System.Net.NetworkInformation.Ping())
{
System.Net.NetworkInformation.PingReply reply = ping.Send(HostName, TimeOut);
if (reply.Status == System.Net.NetworkInformation.IPStatus.Success)
{
result.PingTime = Convert.ToInt32(reply.RoundtripTime);
result.Success = true;
if (reply.Address != null)
{
result.LastErrorMsg = reply.Address.ToString();
}
}
else // if (reply.Status == System.Net.NetworkInformation.IPStatus.TimedOut)
{
result.PingTime = int.MaxValue;
result.LastErrorMsg = "Timed out";
}
}
}
catch (Exception ex)
{
result.Success = false;
result.PingTime = -1;
result.LastErrorMsg = ex.Message;
}
LastPingResult = result;
return(result);
}
public override MonitorStates GetState()
{
MonitorStates returnState = MonitorStates.Good;
StringBuilder plainTextDetails = new StringBuilder();
StringBuilder htmlTextTextDetails = new StringBuilder();
string lastAction = "";
long pingTotalTime = 0;
int errors = 0;
int warnings = 0;
int success = 0;
LastDetailMsg.PlainText = "Pinging hosts";
htmlTextTextDetails.AppendLine("<ul>");
LastError = 0;
LastErrorMsg = "";
try
{
foreach (HostEntry host in HostEntries)
{
PingResult pingResult = host.Ping();
MonitorStates currentState = host.GetState(pingResult);
if (pingResult.Success)
{
pingTotalTime += pingResult.PingTime;
if (currentState == MonitorStates.Error)
{
errors++;
LastErrorMsg = string.Format("Error: {0} - {1}", host.HostName, pingResult.LastErrorMsg);
plainTextDetails.AppendLine(LastErrorMsg);
htmlTextTextDetails.AppendLine(string.Format("<li><b>Error</b>: {0} - {1}</li>", host.HostName, pingResult.LastErrorMsg));
}
else if (currentState == MonitorStates.Warning)
{
warnings++;
LastErrorMsg = string.Format("Warning: {0} - {1}ms - {2}", host.HostName, pingResult.PingTime, pingResult.LastErrorMsg);
plainTextDetails.AppendLine(LastErrorMsg);
htmlTextTextDetails.AppendLine(string.Format("<li><b>Warning</b>: {0} - {1}ms - {2}</li>", host.HostName, pingResult.PingTime, pingResult.LastErrorMsg));
}
else
{
success++;
LastErrorMsg = string.Format("Success: {0} - {1}ms - {2}", host.HostName, pingResult.PingTime, pingResult.LastErrorMsg);
plainTextDetails.AppendLine(LastErrorMsg);
htmlTextTextDetails.AppendLine(string.Format("<li><b>Success</b>: {0} - {1}ms - {2}</li>", host.HostName, pingResult.PingTime, pingResult.LastErrorMsg));
}
}
else
{
errors++;
LastErrorMsg = string.Format("Error: {0} - {1}", host.HostName, pingResult.LastErrorMsg);
plainTextDetails.AppendLine(LastErrorMsg);
htmlTextTextDetails.AppendLine(string.Format("<li><b>Error</b>: {0} - {1}</li>", host.HostName, pingResult.LastErrorMsg));
}
//int pingTime = -1;
//using (System.Net.NetworkInformation.Ping ping = new System.Net.NetworkInformation.Ping())
//{
// lastAction = "Pinging " + host.HostName;
// System.Net.NetworkInformation.PingReply reply = ping.Send(host.HostName, host.TimeOut);
// if (reply.Status == System.Net.NetworkInformation.IPStatus.Success)
// pingTime = Convert.ToInt32(reply.RoundtripTime);
// else // if (reply.Status == System.Net.NetworkInformation.IPStatus.TimedOut)
// pingTime = int.MaxValue;
// pingTotalTime += pingTime;
// if (pingTime >= host.TimeOut) //if any time-out then it is an error
// {
// LastDetailMsg.PlainText = "Time-out pinging " + host.HostName;
// LastErrorMsg = "Time-out pinging " + host.HostName;
// LastDetailMsg.HtmlText = string.Format("<p><b>Time-out pinging:</b> {0}</p>", host.HostName);
// return MonitorStates.Error;
// }
// else if (pingTime > host.MaxTime)
// {
// returnState = MonitorStates.Warning;
// plainTextDetails.AppendLine(string.Format("Ping {0}: {1}ms - Warning", host.HostName, pingTime));
// htmlTextTextDetails.AppendLine(string.Format("<li>Ping {0}: {1}ms - <b>Warning</b></li>", host.HostName, pingTime));
// }
// else
// {
// plainTextDetails.AppendLine(string.Format("Ping {0}: {1}ms - Good", host.HostName, pingTime));
// htmlTextTextDetails.AppendLine(string.Format("<li>Ping {0}: {1}ms - <b>Good</b></li>", host.HostName, pingTime));
// }
//}
}
htmlTextTextDetails.AppendLine("</ul>");
LastDetailMsg.PlainText = plainTextDetails.ToString().TrimEnd('\r', '\n');
LastDetailMsg.HtmlText = htmlTextTextDetails.ToString();
LastDetailMsg.LastValue = pingTotalTime;
if (errors > 0) // any errors
{
returnState = MonitorStates.Error;
}
else if (warnings > 0) //any warnings
{
returnState = MonitorStates.Warning;
}
}
catch (Exception ex)
{
LastError = 1;
LastErrorMsg = ex.Message;
LastDetailMsg.PlainText = ex.Message;
LastDetailMsg.HtmlText = string.Format("<p><b>Last action:</b> {0}</p><blockquote>{1}</blockquote>", lastAction, ex.Message);
returnState = MonitorStates.Error;
}
return(returnState);
}
