public virtual void Flush()
{
// snapshot the queue size so we don't run the risk of a infinite loop
int count = EventQueue.Count;
Console.WriteLine("Flushing {0} events", count);
while (count > 0)
{
var message = new Msg();
int items = Math.Min(count, BufferSize);
for (int i = 0; i < items; i++)
{
Event ev;
if (!EventQueue.TryDequeue(out ev))
{
break;
}
message.Events.Add(ev);
}
if (message.Events.Count > 0)
{
SendMessage(message);
}
count -= message.Events.Count;
}
}
public IEnumerable<ServiceState> Query(string query)
{
var q = new Query {String = query};
var msg = new Msg {Query = q};
Serializer.Serialize(Tcp, msg);
var response = Serializer.Deserialize<Msg>(Tcp);
if (response.Ok) {
return response.States;
}
throw new Exception(response.Error);
}
public IEnumerable<Proto.State> Query(string query)
{
var q = new Proto.Query {@string = query};
var msg = new Proto.Msg {query = q};
Serializer.Serialize(Stream, msg);
var response = Serializer.Deserialize<Proto.Msg>(Stream);
if (response.ok) {
return response.states;
}
throw new Exception(response.error);
}
///
/// <summary>Queries Riemann</summary>
/// <param name='query'>Query to send Riemann for process</param>
/// <returns>List of States that answer the query.</returns>
///
public IEnumerable <Proto.State> Query(string query)
{
var q = new Proto.Query {
@string = query
};
var msg = new Proto.Msg {
query = q
};
Serializer.SerializeWithLengthPrefix(_tcpStream, msg, PrefixStyle.Fixed32BigEndian);
var response = Serializer.DeserializeWithLengthPrefix <Msg>(_tcpStream, PrefixStyle.Fixed32BigEndian);
if (response.ok)
{
return(response.states);
}
throw new Exception(response.error);
}
private void ClientConnected(IAsyncResult ar)
{
if (_tcpListener == null)
{
Console.WriteLine("server shutdown, not handling client request");
_isStopped.Set();
return;
}
Console.WriteLine("MockServer handling client connection");
var server = (TcpListener) ar.AsyncState;
using (_tcpClient = server.EndAcceptTcpClient(ar))
using (var stream = _tcpClient.GetStream())
{
try
{
while (true)
{
var msg = Serializer.DeserializeWithLengthPrefix<Msg>(stream, PrefixStyle.Fixed32BigEndian);
if (msg != null)
{
Console.WriteLine("MockServer read client message: {0}", msg);
TcpMessageQueue.Enqueue(msg);
var reply = new Msg {ok = true};
Console.WriteLine("MockServer writing client reply");
Serializer.SerializeWithLengthPrefix(stream, reply, PrefixStyle.Fixed32BigEndian);
Console.WriteLine("MockServer client reply written");
}
}
}
catch (Exception ex)
{
Console.WriteLine("MockServer caught exception in client handler: {0}", ex.Message);
}
}
_isStopped.Set();
}
private static byte[] MessageBytes(Msg message)
{
using (var memoryStream = new MemoryStream()) {
Serializer.Serialize(memoryStream, message);
return memoryStream.ToArray();
}
}
///
/// <summary>Send many events to Riemann at once.</summary>
/// <param name="events">
/// Enumerable of the events to process.
/// Enumerable will be enumerated after being passed in.
/// </param>
///
public void SendEvents(IEnumerable<Event> events)
{
var tags = new List<string>();
lock (_tagLock) {
if (_tag != null) {
tags = _tag.Tags.ToList();
}
}
var protoEvents = events.Select(
e => {
var evnt = new Proto.Event
{
host = _name,
service = e.Service,
state = e.State,
description = e.Description,
metric_f = e.Metric,
ttl = e.TTL
};
evnt.tags.AddRange(e.Tags);
return evnt;
}).ToList();
var message = new Proto.Msg();
foreach (var protoEvent in protoEvents) {
if(protoEvent.tags.Count == 0)
protoEvent.tags.AddRange(tags);
message.events.Add(protoEvent);
}
var array = MessageBytes(message);
try {
Datagram.Send(array);
} catch (SocketException se) {
if (se.SocketErrorCode == SocketErrorMessageTooLong) {
var x = BitConverter.GetBytes(array.Length);
Array.Reverse(x);
Stream.Write(x, 0, 4);
Stream.Write(array, 0, array.Length);
Stream.Flush();
var response = Serializer.Deserialize<Proto.Msg>(Stream);
if (!response.ok) {
throw new Exception(response.error);
}
} else {
throw;
}
}
}
public virtual void SendMessage(Msg message)
{
lock (_clientLock)
{
Client.SendMessage(message);
}
}
public void SendEvent(Event ev)
{
var message = new Msg();
message.Events.Add(ev);
SendMessage(message);
}
public void SendMessage(Msg message)
{
var memoryStream = new MemoryStream();
Serializer.Serialize(memoryStream, message);
var array = memoryStream.ToArray();
try
{
Udp.Send(array);
}
catch (SocketException se)
{
if (se.ErrorCode == SocketExceptionErrorCodeMessageTooLong)
{
var x = BitConverter.GetBytes(array.Length);
if (BitConverter.IsLittleEndian)
Array.Reverse(x);
Tcp.Write(x, 0, 4);
Tcp.Write(array, 0, array.Length);
Tcp.Flush();
var response = Serializer.Deserialize<Msg>(Tcp);
if (!response.Ok)
{
throw new Exception(response.Error);
}
}
else
{
throw;
}
}
}
public void SendEvents(IEnumerable<Event> events)
{
var message = new Msg();
message.Events.AddRange(events);
SendMessage(message);
}
