private void EnsureLoggers()
{
if (_loggersSet)
{
return;
}
IFunctionInstanceLogger functionLogger = new FunctionInstanceLogger(_loggerFactory);
if (_storageAccountProvider.Dashboard != null)
{
var dashboardAccount = _storageAccountProvider.GetDashboardStorageAccount();
// Create logging against a live Azure account.
var dashboardBlobClient = dashboardAccount.CreateCloudBlobClient();
IPersistentQueueWriter <PersistentQueueMessage> queueWriter = new PersistentQueueWriter <PersistentQueueMessage>(dashboardBlobClient);
PersistentQueueLogger queueLogger = new PersistentQueueLogger(queueWriter);
_hostInstanceLogger = queueLogger;
_functionInstanceLogger = new CompositeFunctionInstanceLogger(queueLogger, functionLogger);
_functionOutputLogger = new BlobFunctionOutputLogger(dashboardBlobClient);
}
else
{
// No auxillary logging. Logging interfaces are nops or in-memory.
_hostInstanceLogger = new NullHostInstanceLogger();
_functionInstanceLogger = functionLogger;
_functionOutputLogger = new ConsoleFunctionOutputLogger();
}
_loggersSet = true;
}
public bool Init(
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 = _storageAccountProvider.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);
}
