using System; using System.Collections.Generic; using System.Net; using System.Net.NetworkInformation; using System.Text; using Kaleida.ServiceMonitor.Framework; using Kaleida.ServiceMonitor.Framework.Responses; namespace Kaleida.ServiceMonitor.Operations.PreparedRequests { public class Ping : PreparedRequest { private const string Data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; private TimeSpan timeout; private readonly string hostNameOrAddress; public Ping(string hostNameOrAddress) : this(hostNameOrAddress, "50s") { } public Ping(string hostNameOrAddress, string timeout) { var timeoutTimeSpan = timeout.ToTimeSpan(); if (timeoutTimeSpan.TotalMilliseconds < 1) throw new ArgumentOutOfRangeException("timeout", timeout, "Cannot be less than 1 millisecond"); this.hostNameOrAddress = hostNameOrAddress; this.timeout = timeoutTimeSpan; } public override string Description { get { return string.Format("Determine if '{0}' is available using an ICMP request with a timeout of {1}ms", hostNameOrAddress, timeout.TotalMilliseconds); } } public override object GetResponse() { var pinger = new System.Net.NetworkInformation.Ping(); byte[] buffer = Encoding.ASCII.GetBytes(Data); PingReply reply = pinger.Send(hostNameOrAddress, (int) timeout.TotalMilliseconds, buffer); if (reply == null) throw new InvalidOperationException("Ping reply was null"); switch (reply.Status) { case IPStatus.Success: return new PingResponse(reply.Status, TimeSpan.FromMilliseconds(reply.RoundtripTime)); case IPStatus.TimedOut: return new PingResponse(new PingTimedOutException(string.Format("Ping to {0} timed out", hostNameOrAddress))); default: return new PingResponse(new InvalidOperationException(string.Format("Ping to {0} returned {1}", hostNameOrAddress, reply.Status))); } } } }
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