private void OnGetServerUsageAsyncCompleted(ServerLoadData data)
{
if (data == null)
{
return;
}
DataGridViewRow theRow = FindRow(data.ServerName);
if (theRow == null)
{
return;
}
int overThresholdCount = 0;
double cpuThreshold = Convert.ToDouble(theRow.Cells["ColCPUThreshold"].Value);
double ramThreshold = Convert.ToDouble(theRow.Cells["ColRAMThreshold"].Value);
double diskThreshold = Convert.ToDouble(theRow.Cells["ColDiskThreshold"].Value);
overThresholdCount += data.CPUUsage > cpuThreshold ? 1 : 0;
theRow.Cells["ColCPUUsage"].Value = string.Format("{0}%", data.CPUUsage);
theRow.Cells["ColCPUUsage"].Style.BackColor = data.CPUUsage > cpuThreshold ? Color.Red : Color.White;
theRow.Cells["ColCPUUsage"].Style.ForeColor = data.CPUUsage > cpuThreshold ? Color.White : Color.Black;
overThresholdCount += data.RAMUsage > ramThreshold ? 1 : 0;
theRow.Cells["ColRAMUsage"].Value = string.Format("{0}%", data.RAMUsage);
theRow.Cells["ColRAMUsage"].Style.BackColor = data.RAMUsage > ramThreshold ? Color.Red : Color.White;
theRow.Cells["ColRAMUsage"].Style.ForeColor = data.RAMUsage > ramThreshold ? Color.White : Color.Black;
string diskUsageNormal = string.Empty;
string diskUsageWarning = string.Empty;
foreach (string key in data.DiskUsage.Keys)
{
if (data.DiskUsage[key] > diskThreshold)
{
overThresholdCount++;
diskUsageWarning += string.Format("{0} {1:0}%{2}", key, data.DiskUsage[key], " ");
}
else
{
diskUsageNormal += string.Format("{0} {1:0}%{2}", key, data.DiskUsage[key], " ");
}
}
theRow.Cells["ColDiskUsageNormal"].Value = diskUsageNormal;
theRow.Cells["ColDiskUsageWarning"].Value = diskUsageWarning;
theRow.Cells["ColDiskUsageWarning"].Style.BackColor = !string.IsNullOrEmpty(diskUsageWarning) ? Color.Red : Color.White;
theRow.Cells["ColDiskUsageWarning"].Style.ForeColor = !string.IsNullOrEmpty(diskUsageWarning) ? Color.White : Color.Black;
theRow.Cells["ColState"].Value = this.imageList1.Images[overThresholdCount == 0 ? 0 : 1];
if (iMonitorServer == cntMonitorServer)
{
btnRefresh.Enabled = true;
iMonitorServer = 0;
}
}
private void OnGetServerUsageAsyncCompletedForMail(ServerLoadData data)
{
if (data == null)
{
return;
}
DataGridViewRow theRow = FindRow(data.ServerName);
if (theRow == null)
{
return;
}
double cpuThreshold = Convert.ToDouble(theRow.Cells["ColCPUThreshold"].Value);
double ramThreshold = Convert.ToDouble(theRow.Cells["ColRAMThreshold"].Value);
double diskThreshold = Convert.ToDouble(theRow.Cells["ColDiskThreshold"].Value);
string diskUsageWarning = string.Empty;
foreach (string key in data.DiskUsage.Keys)
{
if (data.DiskUsage[key] > diskThreshold)
{
diskUsageWarning += string.Format("{0} {1:0}% ", key, data.DiskUsage[key]);
}
}
string CPUUsage = data.CPUUsage > cpuThreshold?string.Format("CPU使用率: {0}%", data.CPUUsage) : string.Empty;
string RAMUsage = data.RAMUsage > ramThreshold?string.Format("内存使用率: {0}%", data.RAMUsage) : string.Empty;
string DiskUsageWarning = diskUsageWarning == string.Empty ? string.Empty : string.Format("磁盘使用率: {0}", diskUsageWarning);
if (CPUUsage != string.Empty || RAMUsage != string.Empty || DiskUsageWarning != string.Empty)
{
emailBody += string.Format("<B>{0}: <FONT Color=\"Red\">{1} {2} {3}</FONT></B></P>", data.ServerName, CPUUsage, RAMUsage, DiskUsageWarning);
}
if (iServer == cntServer)
{
if (emailBody != string.Empty)
{
SendEmail();
}
iServer = 0;
}
}
private void GetServerUsageAsyncForMail(object param)
{
if (param == null || !(param is ServerConfigurationData))
{
//Report Error
this.BeginInvoke(new Action(() =>
{
MessageBox.Show("Invalid argument: param", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}));
iServer++;
if (iServer == cntServer)
{
if (emailBody != string.Empty)
{
SendEmail();
}
iServer = 0;
}
return;
}
ServerConfigurationData configuration = param as ServerConfigurationData;
try
{
ServerLoadData result = ServerLoadHelper.GetServerUsage(configuration.ServerName, configuration.UserName, configuration.Password);
iServer++;
//Complete
this.BeginInvoke(new Action <ServerLoadData>(OnGetServerUsageAsyncCompletedForMail), result);
}
catch (Exception ex)
{
iServer++;
if (iServer == cntServer)
{
if (emailBody != string.Empty)
{
SendEmail();
}
iServer = 0;
}
//Report Error
this.BeginInvoke(new Action <string, Exception>(ReportErrorForEmail), configuration.ServerName, ex);
}
}
private void GetServerUsageAsync(object param)
{
if (param == null || !(param is ServerConfigurationData))
{
iMonitorServer++;
//Report Error
this.BeginInvoke(new Action(() =>
{
if (iMonitorServer == cntMonitorServer)
{
btnRefresh.Enabled = true;
iMonitorServer = 0;
}
MessageBox.Show("Invalid argument: param", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}));
return;
}
ServerConfigurationData configuration = param as ServerConfigurationData;
//Report Progress
this.BeginInvoke(new Action <string, decimal>(ReportProgress), configuration.ServerName, new Decimal(0));
try
{
ServerLoadData result = ServerLoadHelper.GetServerUsage(configuration.ServerName, configuration.UserName, configuration.Password);
iMonitorServer++;
//Complete
this.BeginInvoke(new Action <ServerLoadData>(OnGetServerUsageAsyncCompleted), result);
}
catch (Exception ex)
{
iMonitorServer++;
//Report Error
this.BeginInvoke(new Action <string, Exception>(ReportError), configuration.ServerName, ex);
}
}
public static ServerLoadData GetServerUsage(string serverName, string userName, string password)
{
// Build an options object for the remote connection
// if you plan to connect to the remote
// computer with a different user name
// and password than the one you are currently using.
// This example uses the default values.
ConnectionOptions options = new ConnectionOptions();
if (serverName != ".")
{
options.Username = userName;
options.Password = password;
}
// Make a connection to a remote computer.
// Replace the "FullComputerName" section of the
// string "\\\\FullComputerName\\root\\cimv2" with
// the full computer name or IP address of the
// remote computer.
ManagementScope scope = new ManagementScope("\\\\" + serverName + "\\root\\cimv2", options);
scope.Connect();
SelectQuery sq = null;
ManagementObjectSearcher mos = null;
ServerLoadData result = new ServerLoadData();
result.ServerName = serverName;
//get CPU usage
sq = new SelectQuery("SELECT * FROM Win32_PerfFormattedData_PerfOS_Processor WHERE Name=\"_Total\"");
using (mos = new ManagementObjectSearcher(scope, sq))
result.CPUUsage = Convert.ToDouble(mos.Get().Cast <ManagementObject>().First()["PercentProcessorTime"]);
//mos.Dispose();
//get RAM usage
//get Available RAM size
sq = new SelectQuery("SELECT * FROM Win32_PerfFormattedData_PerfOS_Memory");
Int64 available = 0;
using (mos = new ManagementObjectSearcher(scope, sq))
{
available = Convert.ToInt64(mos.Get().Cast <ManagementObject>().First().Properties["AvailableBytes"].Value);
//get Total RAM size
sq = new SelectQuery("SELECT * FROM Win32_ComputerSystem");
}
using (mos = new ManagementObjectSearcher(scope, sq))
{
Int64 total = Convert.ToInt64(mos.Get().Cast <ManagementObject>().First().Properties["TotalPhysicalMemory"].Value);
//calculate the RAM usage
result.RAMUsage = 100 * (total - available) / total;
}
//get Disk usage
Dictionary <string, double> diskUsage = new Dictionary <string, double>();
sq = new SelectQuery("SELECT * FROM win32_logicaldisk");
using (mos = new ManagementObjectSearcher(scope, sq))
{
foreach (ManagementObject disk in mos.Get())
{
if (disk["DriveType"].ToString() == "3")
{
double freeSpace = Convert.ToDouble(disk["FreeSpace"]);
double totalSize = Convert.ToDouble(disk["Size"]);
diskUsage.Add(disk["Name"].ToString(), 100 * (totalSize - freeSpace) / totalSize);
}
}
result.DiskUsage = diskUsage;
}
return(result);
}
