static ServiceHost GetServiceHost(ServiceHostProvider provider)
{
var sh = provider.Queryable().Single(q => q.Machine == Environment.MachineName);
while (string.IsNullOrWhiteSpace(sh.CommandMessageQueue))
{
Thread.Sleep(500);
sh = provider.Queryable().Single(q => q.Machine == Environment.MachineName);
}
return sh;
}
private void UpdateCmdMsgQ(EnvironmentComponents envConfig, string publicationAddress)
{
var mongoEnv = envConfig.Config.Where(kvp => kvp.Key.StartsWith("Mongo"));
var provider = new ServiceHostProvider(mongoEnv);
var sh = provider.Queryable().Single(q => q.Machine == Environment.MachineName);
sh.CommandMessageQueue = publicationAddress;
sh = provider.Update(sh);
}
private void ManageServiceComponents(EnvironmentComponents envComponents)
{
var environment = envComponents.Environment;
var mongoEnv = envComponents.Config.Where(kvp => kvp.Key.StartsWith("Mongo"));
var provider = new ServiceHostProvider(mongoEnv);
var sh = provider.Queryable().Single(q => q.Machine == Environment.MachineName);
var configuredComponents = sh.Components;
var configuredIds = configuredComponents.Select(c => c.Id);
var existingIds = envComponents.Components.Select(c => c.Id);
// newly configured components
foreach (var newlyConfiguredId in configuredIds.Except(existingIds))
envComponents.Components.Add(new RunningServiceComponent(environment, this.ConfigURL, configuredComponents.Single(c => c.Id == newlyConfiguredId), envComponents.Config));
// newly removed components
foreach (var newlyDeletedId in existingIds.Except(configuredIds))
{
RunningServiceComponent rsc = envComponents.Components.Single(c => c.Id == newlyDeletedId);
rsc.Stop(envComponents.EventProducer);
envComponents.Components.Remove(rsc);
}
// not new, not deleted, possibly updated
foreach (var possiblyUpdatedId in configuredIds.Intersect(existingIds))
{
var rsc = envComponents.Components.Single(c => c.Id == possiblyUpdatedId);
var sc = configuredComponents.Single(c => c.Id == possiblyUpdatedId);
if (rsc.RowVersion != sc.RowVersion)
rsc.Update(envComponents.EventProducer, sc);
}
}