public void Handle(ProjectionManagementMessage.Command.StartSlaveProjections message)
{
var result = new Dictionary <string, SlaveProjectionCommunicationChannel[]>();
var counter = 0;
foreach (var g in message.SlaveProjections.Definitions)
{
var @group = g;
switch (g.RequestedNumber)
{
case SlaveProjectionDefinitions.SlaveProjectionRequestedNumber.One:
case SlaveProjectionDefinitions.SlaveProjectionRequestedNumber.OnePerNode:
{
var resultArray = new SlaveProjectionCommunicationChannel[1];
result.Add(g.Name, resultArray);
counter++;
int queueIndex = GetNextWorkerIndex();
CINP(
message,
@group,
resultArray,
queueIndex,
0,
() => CheckSlaveProjectionsStarted(message, ref counter, result));
break;
}
case SlaveProjectionDefinitions.SlaveProjectionRequestedNumber.OnePerThread:
{
var resultArray = new SlaveProjectionCommunicationChannel[_workers.Length];
result.Add(g.Name, resultArray);
for (int index = 0; index < _workers.Length; index++)
{
counter++;
CINP(
message,
@group,
resultArray,
index,
index,
() => CheckSlaveProjectionsStarted(message, ref counter, result));
}
break;
}
default:
throw new NotSupportedException();
}
}
}
private void CINP(
ProjectionManagementMessage.Command.StartSlaveProjections message,
SlaveProjectionDefinitions.Definition @group,
SlaveProjectionCommunicationChannel[] resultArray,
int queueIndex,
int arrayIndex,
Action completed)
{
var projectionCorrelationId = Guid.NewGuid();
var slaveProjectionName = message.Name + "-" + @group.Name + "-" + queueIndex;
_awaitingSlaveProjections.Add(
projectionCorrelationId,
assigned =>
{
var queueWorkerId = _workers[queueIndex];
resultArray[arrayIndex] = new SlaveProjectionCommunicationChannel(
slaveProjectionName,
queueWorkerId,
assigned.SubscriptionId);
completed();
_awaitingSlaveProjections.Remove(projectionCorrelationId);
});
var initializer = new NewProjectionInitializer(
ProjectionQueryId,
slaveProjectionName,
@group.Mode,
@group.HandlerType,
@group.Query,
true,
@group.EmitEnabled,
@group.CheckpointsEnabled,
@group.EnableRunAs,
@group.TrackEmittedStreams,
@group.RunAs1,
replyEnvelope: null);
initializer.CreateAndInitializeNewProjection(
this,
projectionCorrelationId,
_workers[queueIndex],
true,
message.MasterWorkerId,
message.MasterCorrelationId);
}
private void CINP(
ProjectionManagementMessage.StartSlaveProjections message, SlaveProjectionDefinitions.Definition @group,
SlaveProjectionCommunicationChannel[] resultArray, int queueIndex, int arrayIndex, Action completed)
{
var projectionCorrelationId = Guid.NewGuid();
var slaveProjectionName = message.Name + "-" + @group.Name + "-" + queueIndex;
var initializer = new NewProjectionInitializer(
ProjectionQueryId, slaveProjectionName, @group.Mode, @group.HandlerType, @group.Query, true,
@group.EmitEnabled, @group.CheckpointsEnabled, @group.EnableRunAs, @group.RunAs);
initializer.CreateAndInitializeNewProjection(
this, managedProjection =>
{
resultArray[arrayIndex] = new SlaveProjectionCommunicationChannel(
slaveProjectionName, projectionCorrelationId, managedProjection.SlaveProjectionSubscriptionId,
_queues[queueIndex]);
completed();
}, projectionCorrelationId, queueIndex, true, message.ResultsPublisher, message.MasterCorrelationId);
}
