public IList<CollectableValue> Read()
{
var collectedValueList = new List<CollectableValue>();
collectedValueList.AddRange(GetCommonAttributes());
if (_readEC2InstanceMetadata)
{
// This is only done once on the assumption that the EC2 would have to reboot for these values to change
collectedValueList.AddRange(GetEC2Metadata());
_readEC2InstanceMetadata = false;
}
foreach (Attribute attribute in _attributes)
{
try
{
string value = Environment.GetEnvironmentVariable(attribute.variableName);
AttributeValue attr = new AttributeValue(_hostName, attribute.name, value);
attr.HostName = _hostName;
collectedValueList.Add(attr);
}
catch (Exception ex)
{
Logger.Warn(string.Format("Failed to collect attribute: {0}", attribute.variableName), ex);
}
}
return collectedValueList;
}
private IList<CollectableValue> GetCommonAttributes()
{
// Return standard attributes
IList<CollectableValue> attributes = new List<CollectableValue>();
Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
FileVersionInfo fvi = FileVersionInfo.GetVersionInfo(assembly.Location);
AttributeValue numProcessors = new AttributeValue(_hostName, "cpus", Environment.ProcessorCount.ToString());
attributes.Add(numProcessors);
AttributeValue osVersion = new AttributeValue(_hostName, "osversion", Environment.OSVersion.ToString());
attributes.Add(osVersion);
AttributeValue agent = new AttributeValue(_hostName, "agent", "collectdwin-" + fvi.FileVersion);
attributes.Add(agent);
long totalRAM = 0;
try
{
ConnectionOptions connection = new ConnectionOptions();
connection.Impersonation = ImpersonationLevel.Impersonate;
ManagementScope scope = new ManagementScope("\\\\.\\root\\CIMV2", connection);
scope.Connect();
ObjectQuery query = new ObjectQuery("SELECT * FROM Win32_PhysicalMemory");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query);
foreach (ManagementObject queryObj in searcher.Get())
{
totalRAM += Convert.ToInt64(queryObj["Capacity"]);
}
}
catch (Exception ex)
{
Logger.Warn("Failed to get system memory", ex);
}
AttributeValue ramBytes = new AttributeValue(_hostName, "ram bytes", totalRAM.ToString());
attributes.Add(ramBytes);
AttributeValue ram = new AttributeValue(_hostName, "ram", BytesToString(totalRAM));
attributes.Add(ram);
if (_readIPAddress)
{
try
{
var host = Dns.GetHostEntry(Dns.GetHostName());
List<String> addressList = new List<string>();
foreach (var ip in host.AddressList)
{
// Only get IP V4 addresses for now
if (ip.AddressFamily == AddressFamily.InterNetwork)
addressList.Add(ip.ToString());
}
string ipStr = string.Join(",", addressList.ToArray());
AttributeValue ipAttr = new AttributeValue(_hostName, "ip", ipStr);
attributes.Add(ipAttr);
}
catch (Exception ex)
{
Logger.Warn("Failed to get IP address", ex);
}
}
return attributes;
}
protected void GetIngestAttributes(AttributeValue value, out List<IngestAttribute> attributes)
{
attributes = new List<IngestAttribute>();
attributes.Add(new IngestAttribute(value.Name, value.Value));
}