private static Task LogHostStartedAsync(IFunctionIndex functionIndex, HostOutputMessage hostOutputMessage,
IHostInstanceLogger logger, CancellationToken cancellationToken)
{
IEnumerable <FunctionDescriptor> functions = functionIndex.ReadAllDescriptors();
HostStartedMessage message = new HostStartedMessage
{
HostInstanceId = hostOutputMessage.HostInstanceId,
HostDisplayName = hostOutputMessage.HostDisplayName,
SharedQueueName = hostOutputMessage.SharedQueueName,
InstanceQueueName = hostOutputMessage.InstanceQueueName,
Heartbeat = hostOutputMessage.Heartbeat,
WebJobRunIdentifier = hostOutputMessage.WebJobRunIdentifier,
Functions = functions
};
return(logger.LogHostStartedAsync(message, cancellationToken));
}
private static Task LogHostStartedAsync(IFunctionIndex functionIndex, HostOutputMessage hostOutputMessage,
IHostInstanceLogger logger, CancellationToken cancellationToken)
{
IEnumerable<FunctionDescriptor> functions = functionIndex.ReadAllDescriptors();
HostStartedMessage message = new HostStartedMessage
{
HostInstanceId = hostOutputMessage.HostInstanceId,
HostDisplayName = hostOutputMessage.HostDisplayName,
SharedQueueName = hostOutputMessage.SharedQueueName,
InstanceQueueName = hostOutputMessage.InstanceQueueName,
Heartbeat = hostOutputMessage.Heartbeat,
WebJobRunIdentifier = hostOutputMessage.WebJobRunIdentifier,
Functions = functions
};
return logger.LogHostStartedAsync(message, cancellationToken);
}
public bool Setup(
IFunctionIndex functions,
IListenerFactory functionsListenerFactory,
out IFunctionExecutor hostCallExecutor,
out IListener listener,
out HostOutputMessage hostOutputMessage,
string hostId,
CancellationToken shutdownToken)
{
string sharedQueueName = HostQueueNames.GetHostQueueName(hostId);
var sharedQueue = sharedQueueName;
IListenerFactory sharedQueueListenerFactory = new HostMessageListenerFactory(_storageServices, sharedQueue,
_exceptionHandler, _loggerFactory, functions,
_functionInstanceLogger, _functionExecutor);
Guid hostInstanceId = Guid.NewGuid();
string instanceQueueName = HostQueueNames.GetHostQueueName(hostInstanceId.ToString("N"));
var instanceQueue = instanceQueueName;
IListenerFactory instanceQueueListenerFactory = new HostMessageListenerFactory(_storageServices, instanceQueue,
_exceptionHandler, _loggerFactory, functions,
_functionInstanceLogger, _functionExecutor);
HeartbeatDescriptor heartbeatDescriptor = new HeartbeatDescriptor
{
SharedContainerName = HostContainerNames.Hosts,
SharedDirectoryName = HostDirectoryNames.Heartbeats + "/" + hostId,
InstanceBlobName = hostInstanceId.ToString("N"),
ExpirationInSeconds = (int)HeartbeatIntervals.ExpirationInterval.TotalSeconds
};
var dashboardAccount = _storageAccountOptions.GetDashboardStorageAccount();
var blob = dashboardAccount.CreateCloudBlobClient()
.GetContainerReference(heartbeatDescriptor.SharedContainerName)
.GetBlockBlobReference(heartbeatDescriptor.SharedDirectoryName + "/" + heartbeatDescriptor.InstanceBlobName);
IRecurrentCommand heartbeatCommand = new UpdateHostHeartbeatCommand(new HeartbeatCommand(blob));
IEnumerable <MethodInfo> indexedMethods = functions.ReadAllMethods();
Assembly hostAssembly = JobHostContextFactory.GetHostAssembly(indexedMethods);
string displayName = hostAssembly != null?AssemblyNameCache.GetName(hostAssembly).Name : "Unknown";
hostOutputMessage = new JobHostContextFactory.DataOnlyHostOutputMessage
{
HostInstanceId = hostInstanceId,
HostDisplayName = displayName,
SharedQueueName = sharedQueueName,
InstanceQueueName = instanceQueueName,
Heartbeat = heartbeatDescriptor,
WebJobRunIdentifier = WebJobRunIdentifier.Current
};
hostCallExecutor = JobHostContextFactory.CreateHostCallExecutor(instanceQueueListenerFactory, heartbeatCommand,
_exceptionHandler, shutdownToken, _functionExecutor);
IListenerFactory hostListenerFactory = new CompositeListenerFactory(functionsListenerFactory,
sharedQueueListenerFactory, instanceQueueListenerFactory);
listener = JobHostContextFactory.CreateHostListener(hostListenerFactory, _sharedQueueHandler, heartbeatCommand, _exceptionHandler, shutdownToken);
return(true);
}
public bool Init(IFunctionIndex functions, IListenerFactory functionsListenerFactory, out IFunctionExecutor hostCallExecutor, out IListener listener, out HostOutputMessage hostOutputMessage, string hostId, CancellationToken shutdownToken)
{
hostCallExecutor = new ShutdownFunctionExecutor(shutdownToken, _functionExecutor);
IListener factoryListener = new ListenerFactoryListener(functionsListenerFactory, _sharedQueueHandler);
IListener shutdownListener = new ShutdownListener(shutdownToken, factoryListener);
listener = shutdownListener;
hostOutputMessage = new DataOnlyHostOutputMessage();
return(false);
}
