void IAgentsEngine.warn_inactive_agents(AgentInfo[] agents)
{
foreach (var agent in agents)
{
_log.Trace("Agent is inactive; {0}", agent.AsSingleLineJson());
}
}
void IAgentsEngine.send_goodbye_msgs(AgentInfo[] agents, string goodbyeAgent)
{
foreach (var agent in agents)
{
if (agent.AgentUri == goodbyeAgent)
continue;
_messenger.SendGoodbyeMsg(agent.AgentUri, goodbyeAgent);
}
}
AgentInfo[] IAgentsEngine.send_hello_msgs(AgentInfo[] agents, AgentInfo helloAgent, int snapshotId)
{
var cleanAgents = new List<AgentInfo>();
cleanAgents.Add(helloAgent);
foreach (var agent in agents)
{
if (agent.ClearAgentsListIsCompleted == 0)
continue;
bool sent = _messenger.SendHelloMsg(agent.AgentUri, helloAgent.AgentUri, snapshotId);
if (sent)
cleanAgents.Add(agent);
}
return
cleanAgents.ToArray();
}
void IHubRepo.SetConsequentSnapshotId(AgentInfo agent, int snapshotId, DateTime now)
{
lock (_mutex) _impl.SetConsequentSnapshotId(agent, snapshotId, now);
}
void IHubRepo.AgentsAreUpdated(AgentInfo refAgent, AgentInfo[] cleanAgents, int snapshotId)
{
lock (_mutex) _impl.AgentsAreUpdated(refAgent, cleanAgents, snapshotId);
}
AgentInfo[] IHubRepo.QueryDirtyAgents(AgentInfo refAgent, int snapshotId)
{
lock (_mutex) return _impl.QueryDirtyAgents(refAgent, snapshotId);
}
private List<string> get_agent_state(AgentInfo agent)
{
List<string> list;
_state.TryGetValue(agent.AgentUri, out list);
if (list != null)
return list;
list = new List<string>();
_state[agent.AgentUri] = list;
return list;
}
private AgentInfo new_agent_info(string agentUri)
{
var agent = new AgentInfo
{
AgentUri = agentUri,
SnapshotId = 0
};
_agents.Add(agentUri, agent);
_state[agentUri] = null;
return agent;
}
void IHubRepo.SetConsequentSnapshotId(AgentInfo agent, int snapshotId, DateTime now)
{
Validate.NotNull(agent);
agent.LastUpdateAt = now;
if (agent.SnapshotId >= snapshotId)
return;
agent.SnapshotId = snapshotId;
_state[agent.AgentUri] = null;
}
AgentInfo[] IHubRepo.QueryDirtyAgents(AgentInfo refAgent, int snapshotId)
{
var allAgents = _agents.Values.ToArray();
var cleanAgents = get_agent_state(refAgent);
Validate.NotNull(cleanAgents);
var query =
from agent in allAgents
where !cleanAgents.Contains(agent.AgentUri)
select agent;
var dirtyAgents = query.ToArray();
return dirtyAgents;
}
void IHubRepo.AgentsAreUpdated(AgentInfo refAgent, AgentInfo[] cleanAgents, int snapshotId)
{
if (refAgent.SnapshotId > snapshotId)
return;
var list = get_agent_state(refAgent);
foreach (var agent in cleanAgents)
{
add_clean_agent_to_state(list, agent.AgentUri);
}
}
private void remove_dead_agents(AgentInfo[] agents, TimeSpan deadAgentTtl)
{
foreach (var agent in agents)
{
_log.Info("Agent at '{0}' is dead (ttl='{1}'; sending goodbye message)", agent.AgentUri, deadAgentTtl);
agent_is_gone(agent.AgentUri);
}
}
private void clear_remote_agents_on_first_hello(AgentInfo agent)
{
if (Interlocked.CompareExchange(ref agent.ClearAgentsListIsSent, 1, 0) > 0)
return;
Interlocked.Increment(ref _counters.NewAgents);
_messenger.ClearAgentsList(agent.AgentUri);
agent.ClearAgentsListIsCompleted = 1;
}