public static Dictionary <string, string> CreateMetadata(FunctionInstanceSnapshot snapshot)
{
if (snapshot == null)
{
throw new ArgumentNullException("snapshot");
}
var metadata = new Dictionary <string, string>();
AddMetadataGuid(metadata, IdKey, snapshot.Id);
AddMetadataString(metadata, DisplayTitleKey, snapshot.DisplayTitle);
AddMetadataNullableDateTimeOffset(metadata, StartTimeKey, snapshot.StartTime);
AddMetadataNullableDateTimeOffset(metadata, EndTimeKey, snapshot.EndTime);
AddMetadataNullableBoolean(metadata, SucceededKey, snapshot.Succeeded);
HeartbeatDescriptor heartbeat = snapshot.Heartbeat;
if (heartbeat != null)
{
AddMetadataString(metadata, HeartbeatSharedContainerNameKey, heartbeat.SharedContainerName);
AddMetadataString(metadata, HeartbeatSharedDirectoryNameKey, heartbeat.SharedDirectoryName);
AddMetadataString(metadata, HeartbeatInstanceBlobNameKey, heartbeat.InstanceBlobName);
AddMetadataInt32(metadata, HeartbeatExpirationInSecondsKey, heartbeat.ExpirationInSeconds);
}
return(metadata);
}
private RecentInvocationEntry(Guid id, string displayTitle, DateTimeOffset?startTime, DateTimeOffset?endTime,
bool?succeeded, HeartbeatDescriptor heartbeat)
{
_id = id;
_displayTitle = displayTitle;
_startTime = startTime;
_endTime = endTime;
_succeeded = succeeded;
_heartbeat = heartbeat;
}
private RecentInvocationEntry(Guid id, string displayTitle, DateTimeOffset? startTime, DateTimeOffset? endTime,
bool? succeeded, HeartbeatDescriptor heartbeat)
{
_id = id;
_displayTitle = displayTitle;
_startTime = startTime;
_endTime = endTime;
_succeeded = succeeded;
_heartbeat = heartbeat;
}
private bool?HostInstanceHasHeartbeat(FunctionInstanceSnapshot snapshot)
{
HeartbeatDescriptor heartbeat = snapshot.Heartbeat;
if (heartbeat == null)
{
return(null);
}
return(HostInstanceHasHeartbeat(heartbeat.SharedContainerName, heartbeat.SharedDirectoryName,
heartbeat.InstanceBlobName, heartbeat.ExpirationInSeconds));
}
public static RecentInvocationEntry Create(IDictionary <string, string> metadata)
{
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
Guid?id = GetMetadataNullableGuid(metadata, IdKey);
if (!id.HasValue)
{
throw new InvalidOperationException("Invalid recent function instance ID");
}
string displayTitle = GetMetadataString(metadata, DisplayTitleKey);
DateTimeOffset?startTime = GetMetadataNullableDateTimeOffset(metadata, StartTimeKey);
DateTimeOffset?endTime = GetMetadataNullableDateTimeOffset(metadata, EndTimeKey);
bool? succeeded = GetMetadataNullableBoolean(metadata, SucceededKey);
string heartbeatSharedContainerName = GetMetadataString(metadata, HeartbeatSharedContainerNameKey);
string heartbeatSharedDirectoryName = GetMetadataString(metadata, HeartbeatSharedDirectoryNameKey);
string heartbeatInstanceBlobName = GetMetadataString(metadata, HeartbeatInstanceBlobNameKey);
int? heartbeatExpirationInSeconds = GetMetadataNullableInt32(metadata, HeartbeatExpirationInSecondsKey);
HeartbeatDescriptor heartbeat;
if (heartbeatSharedContainerName != null && heartbeatSharedDirectoryName != null &&
heartbeatInstanceBlobName != null && heartbeatExpirationInSeconds.HasValue)
{
heartbeat = new HeartbeatDescriptor
{
SharedContainerName = heartbeatSharedContainerName,
SharedDirectoryName = heartbeatSharedDirectoryName,
InstanceBlobName = heartbeatInstanceBlobName,
ExpirationInSeconds = heartbeatExpirationInSeconds.Value
};
}
else
{
heartbeat = null;
}
var entry = new RecentInvocationEntry(id.Value, displayTitle, startTime, endTime, succeeded, heartbeat);
entry.FunctionInstanceHeartbeatExpiry = GetMetadataNullableDateTime(metadata, FunctionInstanceHeartbeatExpiredTimeKey);
return(entry);
}
private static FunctionSnapshot CreateFunctionSnapshot(string queueName, HeartbeatDescriptor heartbeat,
FunctionDescriptor function, DateTimeOffset hostVersion)
{
return(new FunctionSnapshot
{
HostVersion = hostVersion,
Id = new FunctionIdentifier(queueName, function.Id).ToString(),
QueueName = queueName,
HeartbeatSharedContainerName = heartbeat != null ? heartbeat.SharedContainerName : null,
HeartbeatSharedDirectoryName = heartbeat != null ? heartbeat.SharedDirectoryName : null,
HeartbeatExpirationInSeconds = heartbeat != null ? (int?)heartbeat.ExpirationInSeconds : null,
HostFunctionId = function.Id,
FullName = function.FullName,
ShortName = function.ShortName,
Parameters = CreateParameterSnapshots(function.Parameters)
});
}
private bool?HostInstanceHasHeartbeat(FunctionInstanceSnapshot snapshot)
{
if (snapshot.FunctionInstanceHeartbeatExpiry.HasValue)
{
var now = DateTime.UtcNow;
return(snapshot.FunctionInstanceHeartbeatExpiry.Value > now);
}
HeartbeatDescriptor heartbeat = snapshot.Heartbeat;
if (heartbeat == null)
{
return(null);
}
return(HostInstanceHasHeartbeat(heartbeat.SharedContainerName, heartbeat.SharedDirectoryName,
heartbeat.InstanceBlobName, heartbeat.ExpirationInSeconds));
}
public static async Task<JobHostContext> CreateAndLogHostStartedAsync(
JobHost host,
IStorageAccountProvider storageAccountProvider,
IQueueConfiguration queueConfiguration,
ITypeLocator typeLocator,
IJobActivator activator,
INameResolver nameResolver,
IConsoleProvider consoleProvider,
JobHostConfiguration config,
CancellationToken shutdownToken,
CancellationToken cancellationToken,
IHostIdProvider hostIdProvider = null,
FunctionExecutor functionExecutor = null,
IFunctionIndexProvider functionIndexProvider = null,
IBindingProvider bindingProvider = null,
IHostInstanceLoggerProvider hostInstanceLogerProvider = null,
IFunctionInstanceLoggerProvider functionInstanceLoggerProvider = null,
IFunctionOutputLoggerProvider functionOutputLoggerProvider = null,
IBackgroundExceptionDispatcher backgroundExceptionDispatcher = null,
SingletonManager singletonManager = null)
{
if (hostIdProvider == null)
{
hostIdProvider = new DynamicHostIdProvider(storageAccountProvider, () => functionIndexProvider);
}
IExtensionTypeLocator extensionTypeLocator = new ExtensionTypeLocator(typeLocator);
if (backgroundExceptionDispatcher == null)
{
backgroundExceptionDispatcher = BackgroundExceptionDispatcher.Instance;
}
ContextAccessor<IMessageEnqueuedWatcher> messageEnqueuedWatcherAccessor = new ContextAccessor<IMessageEnqueuedWatcher>();
ContextAccessor<IBlobWrittenWatcher> blobWrittenWatcherAccessor = new ContextAccessor<IBlobWrittenWatcher>();
ISharedContextProvider sharedContextProvider = new SharedContextProvider();
// Create a wrapper TraceWriter that delegates to both the user
// TraceWriter specified on Config (if present), as well as to Console
TraceWriter trace = new ConsoleTraceWriter(config.Tracing, consoleProvider.Out);
// Register system services with the service container
config.AddService<INameResolver>(nameResolver);
ExtensionConfigContext context = new ExtensionConfigContext
{
Config = config,
Trace = trace,
Host = host
};
InvokeExtensionConfigProviders(context);
IExtensionRegistry extensions = config.GetExtensions();
ITriggerBindingProvider triggerBindingProvider = DefaultTriggerBindingProvider.Create(nameResolver,
storageAccountProvider, extensionTypeLocator, hostIdProvider, queueConfiguration, backgroundExceptionDispatcher,
messageEnqueuedWatcherAccessor, blobWrittenWatcherAccessor, sharedContextProvider, extensions, trace);
if (bindingProvider == null)
{
bindingProvider = DefaultBindingProvider.Create(nameResolver, storageAccountProvider, extensionTypeLocator, messageEnqueuedWatcherAccessor, blobWrittenWatcherAccessor, extensions);
}
DefaultLoggerProvider loggerProvider = new DefaultLoggerProvider(storageAccountProvider, trace);
if (singletonManager == null)
{
singletonManager = new SingletonManager(storageAccountProvider, backgroundExceptionDispatcher, config.Singleton, trace, config.NameResolver);
}
using (CancellationTokenSource combinedCancellationSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, shutdownToken))
{
CancellationToken combinedCancellationToken = combinedCancellationSource.Token;
await WriteSiteExtensionManifestAsync(combinedCancellationToken);
IStorageAccount dashboardAccount = await storageAccountProvider.GetDashboardAccountAsync(combinedCancellationToken);
IHostInstanceLogger hostInstanceLogger = null;
if (hostInstanceLogerProvider != null)
{
hostInstanceLogger = await hostInstanceLogerProvider.GetAsync(combinedCancellationToken);
}
else
{
hostInstanceLogger = await((IHostInstanceLoggerProvider)loggerProvider).GetAsync(combinedCancellationToken);
}
IFunctionInstanceLogger functionInstanceLogger = null;
if (functionInstanceLoggerProvider != null)
{
functionInstanceLogger = await functionInstanceLoggerProvider.GetAsync(combinedCancellationToken);
}
else
{
functionInstanceLogger = (IFunctionInstanceLogger)(await((IFunctionInstanceLoggerProvider)loggerProvider).GetAsync(combinedCancellationToken));
}
IFunctionOutputLogger functionOutputLogger = null;
if (functionOutputLoggerProvider != null)
{
functionOutputLogger = await functionOutputLoggerProvider.GetAsync(combinedCancellationToken);
}
else
{
functionOutputLogger = (IFunctionOutputLogger)(await((IFunctionOutputLoggerProvider)loggerProvider).GetAsync(combinedCancellationToken));
}
if (functionExecutor == null)
{
functionExecutor = new FunctionExecutor(functionInstanceLogger, functionOutputLogger, backgroundExceptionDispatcher, trace);
}
if (functionIndexProvider == null)
{
functionIndexProvider = new FunctionIndexProvider(typeLocator, triggerBindingProvider, bindingProvider, activator, functionExecutor, extensions, singletonManager);
}
IFunctionIndex functions = await functionIndexProvider.GetAsync(combinedCancellationToken);
IListenerFactory functionsListenerFactory = new HostListenerFactory(functions.ReadAll(), singletonManager, activator, nameResolver, trace);
IFunctionExecutor hostCallExecutor;
IListener listener;
HostOutputMessage hostOutputMessage;
if (dashboardAccount != null)
{
string hostId = await hostIdProvider.GetHostIdAsync(cancellationToken);
string sharedQueueName = HostQueueNames.GetHostQueueName(hostId);
IStorageQueueClient dashboardQueueClient = dashboardAccount.CreateQueueClient();
IStorageQueue sharedQueue = dashboardQueueClient.GetQueueReference(sharedQueueName);
IListenerFactory sharedQueueListenerFactory = new HostMessageListenerFactory(sharedQueue,
queueConfiguration, backgroundExceptionDispatcher, trace, functions,
functionInstanceLogger, functionExecutor);
Guid hostInstanceId = Guid.NewGuid();
string instanceQueueName = HostQueueNames.GetHostQueueName(hostInstanceId.ToString("N"));
IStorageQueue instanceQueue = dashboardQueueClient.GetQueueReference(instanceQueueName);
IListenerFactory instanceQueueListenerFactory = new HostMessageListenerFactory(instanceQueue,
queueConfiguration, backgroundExceptionDispatcher, trace, functions,
functionInstanceLogger, functionExecutor);
HeartbeatDescriptor heartbeatDescriptor = new HeartbeatDescriptor
{
SharedContainerName = HostContainerNames.Hosts,
SharedDirectoryName = HostDirectoryNames.Heartbeats + "/" + hostId,
InstanceBlobName = hostInstanceId.ToString("N"),
ExpirationInSeconds = (int)HeartbeatIntervals.ExpirationInterval.TotalSeconds
};
IStorageBlockBlob blob = dashboardAccount.CreateBlobClient()
.GetContainerReference(heartbeatDescriptor.SharedContainerName)
.GetBlockBlobReference(heartbeatDescriptor.SharedDirectoryName + "/" + heartbeatDescriptor.InstanceBlobName);
IRecurrentCommand heartbeatCommand = new UpdateHostHeartbeatCommand(new HeartbeatCommand(blob));
IEnumerable<MethodInfo> indexedMethods = functions.ReadAllMethods();
Assembly hostAssembly = GetHostAssembly(indexedMethods);
string displayName = hostAssembly != null ? hostAssembly.GetName().Name : "Unknown";
hostOutputMessage = new DataOnlyHostOutputMessage
{
HostInstanceId = hostInstanceId,
HostDisplayName = displayName,
SharedQueueName = sharedQueueName,
InstanceQueueName = instanceQueueName,
Heartbeat = heartbeatDescriptor,
WebJobRunIdentifier = WebJobRunIdentifier.Current
};
hostCallExecutor = CreateHostCallExecutor(instanceQueueListenerFactory, heartbeatCommand,
backgroundExceptionDispatcher, shutdownToken, functionExecutor);
IListenerFactory hostListenerFactory = new CompositeListenerFactory(functionsListenerFactory,
sharedQueueListenerFactory, instanceQueueListenerFactory);
listener = CreateHostListener(hostListenerFactory, heartbeatCommand, backgroundExceptionDispatcher, shutdownToken);
// Publish this to Azure logging account so that a web dashboard can see it.
await LogHostStartedAsync(functions, hostOutputMessage, hostInstanceLogger, combinedCancellationToken);
}
else
{
hostCallExecutor = new ShutdownFunctionExecutor(shutdownToken, functionExecutor);
IListener factoryListener = new ListenerFactoryListener(functionsListenerFactory);
IListener shutdownListener = new ShutdownListener(shutdownToken, factoryListener);
listener = shutdownListener;
hostOutputMessage = new DataOnlyHostOutputMessage();
}
functionExecutor.HostOutputMessage = hostOutputMessage;
IEnumerable<FunctionDescriptor> descriptors = functions.ReadAllDescriptors();
int descriptorsCount = descriptors.Count();
if (descriptorsCount == 0)
{
trace.Warning("No functions found. Try making job classes and methods public.", TraceSource.Indexing);
}
else
{
StringBuilder functionsTrace = new StringBuilder();
functionsTrace.AppendLine("Found the following functions:");
foreach (FunctionDescriptor descriptor in descriptors)
{
functionsTrace.AppendLine(descriptor.FullName);
}
trace.Info(functionsTrace.ToString(), TraceSource.Indexing);
}
return new JobHostContext(functions, hostCallExecutor, listener, trace);
}
}
public static async Task <JobHostContext> CreateAndLogHostStartedAsync(
JobHost host,
IStorageAccountProvider storageAccountProvider,
IQueueConfiguration queueConfiguration,
ITypeLocator typeLocator,
IJobActivator activator,
INameResolver nameResolver,
IConsoleProvider consoleProvider,
JobHostConfiguration config,
CancellationToken shutdownToken,
CancellationToken cancellationToken,
IHostIdProvider hostIdProvider = null,
FunctionExecutor functionExecutor = null,
IFunctionIndexProvider functionIndexProvider = null,
IBindingProvider bindingProvider = null,
IHostInstanceLoggerProvider hostInstanceLogerProvider = null,
IFunctionInstanceLoggerProvider functionInstanceLoggerProvider = null,
IFunctionOutputLoggerProvider functionOutputLoggerProvider = null,
IBackgroundExceptionDispatcher backgroundExceptionDispatcher = null,
SingletonManager singletonManager = null)
{
if (hostIdProvider == null)
{
hostIdProvider = new DynamicHostIdProvider(storageAccountProvider, () => functionIndexProvider);
}
IExtensionTypeLocator extensionTypeLocator = new ExtensionTypeLocator(typeLocator);
if (backgroundExceptionDispatcher == null)
{
backgroundExceptionDispatcher = BackgroundExceptionDispatcher.Instance;
}
ContextAccessor <IMessageEnqueuedWatcher> messageEnqueuedWatcherAccessor = new ContextAccessor <IMessageEnqueuedWatcher>();
ContextAccessor <IBlobWrittenWatcher> blobWrittenWatcherAccessor = new ContextAccessor <IBlobWrittenWatcher>();
ISharedContextProvider sharedContextProvider = new SharedContextProvider();
// Create a wrapper TraceWriter that delegates to both the user
// TraceWriter specified on Config (if present), as well as to Console
TraceWriter trace = new ConsoleTraceWriter(config.Tracing, consoleProvider.Out);
// Register system services with the service container
config.AddService <INameResolver>(nameResolver);
ExtensionConfigContext context = new ExtensionConfigContext
{
Config = config,
Trace = trace,
Host = host
};
InvokeExtensionConfigProviders(context);
IExtensionRegistry extensions = config.GetExtensions();
ITriggerBindingProvider triggerBindingProvider = DefaultTriggerBindingProvider.Create(nameResolver,
storageAccountProvider, extensionTypeLocator, hostIdProvider, queueConfiguration, backgroundExceptionDispatcher,
messageEnqueuedWatcherAccessor, blobWrittenWatcherAccessor, sharedContextProvider, extensions, trace);
if (bindingProvider == null)
{
bindingProvider = DefaultBindingProvider.Create(nameResolver, storageAccountProvider, extensionTypeLocator, messageEnqueuedWatcherAccessor, blobWrittenWatcherAccessor, extensions);
}
DefaultLoggerProvider loggerProvider = new DefaultLoggerProvider(storageAccountProvider, trace);
if (singletonManager == null)
{
singletonManager = new SingletonManager(storageAccountProvider, backgroundExceptionDispatcher, config.Singleton, trace, config.NameResolver);
}
using (CancellationTokenSource combinedCancellationSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, shutdownToken))
{
CancellationToken combinedCancellationToken = combinedCancellationSource.Token;
await WriteSiteExtensionManifestAsync(combinedCancellationToken);
IStorageAccount dashboardAccount = await storageAccountProvider.GetDashboardAccountAsync(combinedCancellationToken);
IHostInstanceLogger hostInstanceLogger = null;
if (hostInstanceLogerProvider != null)
{
hostInstanceLogger = await hostInstanceLogerProvider.GetAsync(combinedCancellationToken);
}
else
{
hostInstanceLogger = await((IHostInstanceLoggerProvider)loggerProvider).GetAsync(combinedCancellationToken);
}
IFunctionInstanceLogger functionInstanceLogger = null;
if (functionInstanceLoggerProvider != null)
{
functionInstanceLogger = await functionInstanceLoggerProvider.GetAsync(combinedCancellationToken);
}
else
{
functionInstanceLogger = (IFunctionInstanceLogger)(await((IFunctionInstanceLoggerProvider)loggerProvider).GetAsync(combinedCancellationToken));
}
IFunctionOutputLogger functionOutputLogger = null;
if (functionOutputLoggerProvider != null)
{
functionOutputLogger = await functionOutputLoggerProvider.GetAsync(combinedCancellationToken);
}
else
{
functionOutputLogger = (IFunctionOutputLogger)(await((IFunctionOutputLoggerProvider)loggerProvider).GetAsync(combinedCancellationToken));
}
if (functionExecutor == null)
{
functionExecutor = new FunctionExecutor(functionInstanceLogger, functionOutputLogger, backgroundExceptionDispatcher, trace, config.FunctionTimeout);
}
if (functionIndexProvider == null)
{
functionIndexProvider = new FunctionIndexProvider(typeLocator, triggerBindingProvider, bindingProvider, activator, functionExecutor, extensions, singletonManager);
}
IFunctionIndex functions = await functionIndexProvider.GetAsync(combinedCancellationToken);
IListenerFactory functionsListenerFactory = new HostListenerFactory(functions.ReadAll(), singletonManager, activator, nameResolver, trace);
IFunctionExecutor hostCallExecutor;
IListener listener;
HostOutputMessage hostOutputMessage;
if (dashboardAccount != null)
{
string hostId = await hostIdProvider.GetHostIdAsync(cancellationToken);
string sharedQueueName = HostQueueNames.GetHostQueueName(hostId);
IStorageQueueClient dashboardQueueClient = dashboardAccount.CreateQueueClient();
IStorageQueue sharedQueue = dashboardQueueClient.GetQueueReference(sharedQueueName);
IListenerFactory sharedQueueListenerFactory = new HostMessageListenerFactory(sharedQueue,
queueConfiguration, backgroundExceptionDispatcher, trace, functions,
functionInstanceLogger, functionExecutor);
Guid hostInstanceId = Guid.NewGuid();
string instanceQueueName = HostQueueNames.GetHostQueueName(hostInstanceId.ToString("N"));
IStorageQueue instanceQueue = dashboardQueueClient.GetQueueReference(instanceQueueName);
IListenerFactory instanceQueueListenerFactory = new HostMessageListenerFactory(instanceQueue,
queueConfiguration, backgroundExceptionDispatcher, trace, functions,
functionInstanceLogger, functionExecutor);
HeartbeatDescriptor heartbeatDescriptor = new HeartbeatDescriptor
{
SharedContainerName = HostContainerNames.Hosts,
SharedDirectoryName = HostDirectoryNames.Heartbeats + "/" + hostId,
InstanceBlobName = hostInstanceId.ToString("N"),
ExpirationInSeconds = (int)HeartbeatIntervals.ExpirationInterval.TotalSeconds
};
IStorageBlockBlob blob = dashboardAccount.CreateBlobClient()
.GetContainerReference(heartbeatDescriptor.SharedContainerName)
.GetBlockBlobReference(heartbeatDescriptor.SharedDirectoryName + "/" + heartbeatDescriptor.InstanceBlobName);
IRecurrentCommand heartbeatCommand = new UpdateHostHeartbeatCommand(new HeartbeatCommand(blob));
IEnumerable <MethodInfo> indexedMethods = functions.ReadAllMethods();
Assembly hostAssembly = GetHostAssembly(indexedMethods);
string displayName = hostAssembly != null?hostAssembly.GetName().Name : "Unknown";
hostOutputMessage = new DataOnlyHostOutputMessage
{
HostInstanceId = hostInstanceId,
HostDisplayName = displayName,
SharedQueueName = sharedQueueName,
InstanceQueueName = instanceQueueName,
Heartbeat = heartbeatDescriptor,
WebJobRunIdentifier = WebJobRunIdentifier.Current
};
hostCallExecutor = CreateHostCallExecutor(instanceQueueListenerFactory, heartbeatCommand,
backgroundExceptionDispatcher, shutdownToken, functionExecutor);
IListenerFactory hostListenerFactory = new CompositeListenerFactory(functionsListenerFactory,
sharedQueueListenerFactory, instanceQueueListenerFactory);
listener = CreateHostListener(hostListenerFactory, heartbeatCommand, backgroundExceptionDispatcher, shutdownToken);
// Publish this to Azure logging account so that a web dashboard can see it.
await LogHostStartedAsync(functions, hostOutputMessage, hostInstanceLogger, combinedCancellationToken);
}
else
{
hostCallExecutor = new ShutdownFunctionExecutor(shutdownToken, functionExecutor);
IListener factoryListener = new ListenerFactoryListener(functionsListenerFactory);
IListener shutdownListener = new ShutdownListener(shutdownToken, factoryListener);
listener = shutdownListener;
hostOutputMessage = new DataOnlyHostOutputMessage();
}
functionExecutor.HostOutputMessage = hostOutputMessage;
IEnumerable <FunctionDescriptor> descriptors = functions.ReadAllDescriptors();
int descriptorsCount = descriptors.Count();
if (descriptorsCount == 0)
{
trace.Warning(string.Format("No job functions found. Try making your job classes and methods public. {0}",
Constants.ExtensionInitializationMessage), TraceSource.Indexing);
}
else
{
StringBuilder functionsTrace = new StringBuilder();
functionsTrace.AppendLine("Found the following functions:");
foreach (FunctionDescriptor descriptor in descriptors)
{
functionsTrace.AppendLine(descriptor.FullName);
}
trace.Info(functionsTrace.ToString(), TraceSource.Indexing);
}
return(new JobHostContext(functions, hostCallExecutor, listener, trace));
}
}
private static FunctionSnapshot CreateFunctionSnapshot(string queueName, HeartbeatDescriptor heartbeat,
FunctionDescriptor function, DateTimeOffset hostVersion)
{
return new FunctionSnapshot
{
HostVersion = hostVersion,
Id = new FunctionIdentifier(queueName, function.Id).ToString(),
QueueName = queueName,
HeartbeatSharedContainerName = heartbeat != null ? heartbeat.SharedContainerName : null,
HeartbeatSharedDirectoryName = heartbeat != null ? heartbeat.SharedDirectoryName : null,
HeartbeatExpirationInSeconds = heartbeat != null ? (int?)heartbeat.ExpirationInSeconds : null,
HostFunctionId = function.Id,
FullName = function.FullName,
ShortName = function.ShortName,
Parameters = CreateParameterSnapshots(function.Parameters)
};
}
// Do the full runtime intitialization. This includes static initialization.
// This mainly means:
// - indexing the functions
// - spinning up the listeners (so connecting to the services)
public static async Task <JobHostContext> CreateJobHostContextAsync(
this JobHostConfiguration config,
ServiceProviderWrapper services, // Results from first phase
JobHost host,
CancellationToken shutdownToken,
CancellationToken cancellationToken)
{
FunctionExecutor functionExecutor = services.GetService <FunctionExecutor>();
IFunctionIndexProvider functionIndexProvider = services.GetService <IFunctionIndexProvider>();
ITriggerBindingProvider triggerBindingProvider = services.GetService <ITriggerBindingProvider>();
IBindingProvider bindingProvider = services.GetService <IBindingProvider>();
SingletonManager singletonManager = services.GetService <SingletonManager>();
IJobActivator activator = services.GetService <IJobActivator>();
IHostIdProvider hostIdProvider = services.GetService <IHostIdProvider>();
INameResolver nameResolver = services.GetService <INameResolver>();
IExtensionRegistry extensions = services.GetExtensions();
IStorageAccountProvider storageAccountProvider = services.GetService <IStorageAccountProvider>();
ILoggerFactory loggerFactory = services.GetService <ILoggerFactory>();
IFunctionResultAggregatorFactory aggregatorFactory = services.GetService <IFunctionResultAggregatorFactory>();
IAsyncCollector <FunctionInstanceLogEntry> functionEventCollector = null;
// Create the aggregator if all the pieces are configured
IAsyncCollector <FunctionInstanceLogEntry> aggregator = null;
if (loggerFactory != null && aggregatorFactory != null && config.Aggregator.IsEnabled)
{
aggregator = aggregatorFactory.Create(config.Aggregator.BatchSize, config.Aggregator.FlushTimeout, loggerFactory);
}
IQueueConfiguration queueConfiguration = services.GetService <IQueueConfiguration>();
var blobsConfiguration = config.Blobs;
TraceWriter trace = services.GetService <TraceWriter>();
IAsyncCollector <FunctionInstanceLogEntry> registeredFunctionEventCollector = services.GetService <IAsyncCollector <FunctionInstanceLogEntry> >();
if (registeredFunctionEventCollector != null && aggregator != null)
{
// If there are both an aggregator and a registered FunctionEventCollector, wrap them in a composite
functionEventCollector = new CompositeFunctionEventCollector(new[] { registeredFunctionEventCollector, aggregator });
}
else
{
// Otherwise, take whichever one is null (or use null if both are)
functionEventCollector = aggregator ?? registeredFunctionEventCollector;
}
IWebJobsExceptionHandler exceptionHandler = services.GetService <IWebJobsExceptionHandler>();
if (exceptionHandler != null)
{
exceptionHandler.Initialize(host);
}
bool hasFastTableHook = services.GetService <IAsyncCollector <FunctionInstanceLogEntry> >() != null;
bool noDashboardStorage = config.DashboardConnectionString == null;
// Only testing will override these interfaces.
IHostInstanceLoggerProvider hostInstanceLoggerProvider = services.GetService <IHostInstanceLoggerProvider>();
IFunctionInstanceLoggerProvider functionInstanceLoggerProvider = services.GetService <IFunctionInstanceLoggerProvider>();
IFunctionOutputLoggerProvider functionOutputLoggerProvider = services.GetService <IFunctionOutputLoggerProvider>();
if (hostInstanceLoggerProvider == null && functionInstanceLoggerProvider == null && functionOutputLoggerProvider == null)
{
if (hasFastTableHook && noDashboardStorage)
{
var loggerProvider = new FastTableLoggerProvider(trace);
hostInstanceLoggerProvider = loggerProvider;
functionInstanceLoggerProvider = loggerProvider;
functionOutputLoggerProvider = loggerProvider;
}
else
{
var loggerProvider = new DefaultLoggerProvider(storageAccountProvider, trace);
hostInstanceLoggerProvider = loggerProvider;
functionInstanceLoggerProvider = loggerProvider;
functionOutputLoggerProvider = loggerProvider;
}
}
using (CancellationTokenSource combinedCancellationSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, shutdownToken))
{
CancellationToken combinedCancellationToken = combinedCancellationSource.Token;
await WriteSiteExtensionManifestAsync(combinedCancellationToken);
IStorageAccount dashboardAccount = await storageAccountProvider.GetDashboardAccountAsync(combinedCancellationToken);
IHostInstanceLogger hostInstanceLogger = await hostInstanceLoggerProvider.GetAsync(combinedCancellationToken);
IFunctionInstanceLogger functionInstanceLogger = await functionInstanceLoggerProvider.GetAsync(combinedCancellationToken);
IFunctionOutputLogger functionOutputLogger = await functionOutputLoggerProvider.GetAsync(combinedCancellationToken);
if (functionExecutor == null)
{
var extensionRegistry = config.GetService <IExtensionRegistry>();
var globalFunctionFilters = extensionRegistry.GetFunctionFilters();
functionExecutor = new FunctionExecutor(functionInstanceLogger, functionOutputLogger, exceptionHandler, trace, functionEventCollector, loggerFactory, globalFunctionFilters);
services.AddService(functionExecutor);
}
if (functionIndexProvider == null)
{
functionIndexProvider = new FunctionIndexProvider(
services.GetService <ITypeLocator>(),
triggerBindingProvider,
bindingProvider,
activator,
functionExecutor,
extensions,
singletonManager,
trace,
loggerFactory);
// Important to set this so that the func we passed to DynamicHostIdProvider can pick it up.
services.AddService <IFunctionIndexProvider>(functionIndexProvider);
}
IFunctionIndex functions = await functionIndexProvider.GetAsync(combinedCancellationToken);
IListenerFactory functionsListenerFactory = new HostListenerFactory(functions.ReadAll(), singletonManager, activator, nameResolver, trace, loggerFactory);
IFunctionExecutor hostCallExecutor;
IListener listener;
HostOutputMessage hostOutputMessage;
string hostId = await hostIdProvider.GetHostIdAsync(cancellationToken);
if (string.Compare(config.HostId, hostId, StringComparison.OrdinalIgnoreCase) != 0)
{
// if this isn't a static host ID, provide the HostId on the config
// so it is accessible
config.HostId = hostId;
}
if (dashboardAccount == null)
{
hostCallExecutor = new ShutdownFunctionExecutor(shutdownToken, functionExecutor);
IListener factoryListener = new ListenerFactoryListener(functionsListenerFactory);
IListener shutdownListener = new ShutdownListener(shutdownToken, factoryListener);
listener = shutdownListener;
hostOutputMessage = new DataOnlyHostOutputMessage();
}
else
{
string sharedQueueName = HostQueueNames.GetHostQueueName(hostId);
IStorageQueueClient dashboardQueueClient = dashboardAccount.CreateQueueClient();
IStorageQueue sharedQueue = dashboardQueueClient.GetQueueReference(sharedQueueName);
IListenerFactory sharedQueueListenerFactory = new HostMessageListenerFactory(sharedQueue,
queueConfiguration, exceptionHandler, trace, loggerFactory, functions,
functionInstanceLogger, functionExecutor);
Guid hostInstanceId = Guid.NewGuid();
string instanceQueueName = HostQueueNames.GetHostQueueName(hostInstanceId.ToString("N"));
IStorageQueue instanceQueue = dashboardQueueClient.GetQueueReference(instanceQueueName);
IListenerFactory instanceQueueListenerFactory = new HostMessageListenerFactory(instanceQueue,
queueConfiguration, exceptionHandler, trace, loggerFactory, functions,
functionInstanceLogger, functionExecutor);
HeartbeatDescriptor heartbeatDescriptor = new HeartbeatDescriptor
{
SharedContainerName = HostContainerNames.Hosts,
SharedDirectoryName = HostDirectoryNames.Heartbeats + "/" + hostId,
InstanceBlobName = hostInstanceId.ToString("N"),
ExpirationInSeconds = (int)HeartbeatIntervals.ExpirationInterval.TotalSeconds
};
IStorageBlockBlob blob = dashboardAccount.CreateBlobClient()
.GetContainerReference(heartbeatDescriptor.SharedContainerName)
.GetBlockBlobReference(heartbeatDescriptor.SharedDirectoryName + "/" + heartbeatDescriptor.InstanceBlobName);
IRecurrentCommand heartbeatCommand = new UpdateHostHeartbeatCommand(new HeartbeatCommand(blob));
IEnumerable <MethodInfo> indexedMethods = functions.ReadAllMethods();
Assembly hostAssembly = GetHostAssembly(indexedMethods);
string displayName = hostAssembly != null?AssemblyNameCache.GetName(hostAssembly).Name : "Unknown";
hostOutputMessage = new DataOnlyHostOutputMessage
{
HostInstanceId = hostInstanceId,
HostDisplayName = displayName,
SharedQueueName = sharedQueueName,
InstanceQueueName = instanceQueueName,
Heartbeat = heartbeatDescriptor,
WebJobRunIdentifier = WebJobRunIdentifier.Current
};
hostCallExecutor = CreateHostCallExecutor(instanceQueueListenerFactory, heartbeatCommand,
exceptionHandler, shutdownToken, functionExecutor);
IListenerFactory hostListenerFactory = new CompositeListenerFactory(functionsListenerFactory,
sharedQueueListenerFactory, instanceQueueListenerFactory);
listener = CreateHostListener(hostListenerFactory, heartbeatCommand, exceptionHandler, shutdownToken);
// Publish this to Azure logging account so that a web dashboard can see it.
await LogHostStartedAsync(functions, hostOutputMessage, hostInstanceLogger, combinedCancellationToken);
}
functionExecutor.HostOutputMessage = hostOutputMessage;
IEnumerable <FunctionDescriptor> descriptors = functions.ReadAllDescriptors();
int descriptorsCount = descriptors.Count();
ILogger startupLogger = loggerFactory?.CreateLogger(LogCategories.Startup);
if (config.UsingDevelopmentSettings)
{
string msg = "Development settings applied";
trace.Verbose(msg);
startupLogger?.LogDebug(msg);
}
if (descriptorsCount == 0)
{
string msg = string.Format("No job functions found. Try making your job classes and methods public. {0}",
Constants.ExtensionInitializationMessage);
trace.Warning(msg, Host.TraceSource.Indexing);
startupLogger?.LogWarning(msg);
}
else
{
StringBuilder functionsTrace = new StringBuilder();
functionsTrace.AppendLine("Found the following functions:");
foreach (FunctionDescriptor descriptor in descriptors)
{
functionsTrace.AppendLine(descriptor.FullName);
}
string msg = functionsTrace.ToString();
trace.Info(msg, Host.TraceSource.Indexing);
startupLogger?.LogInformation(msg);
}
return(new JobHostContext(
functions,
hostCallExecutor,
listener,
trace,
functionEventCollector,
loggerFactory));
}
}
public void ProcessHostStarted(HostStartedMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
string hostId = message.SharedQueueName;
DateTimeOffset hostVersion = message.EnqueuedOn;
DateTime hostVersionUtc = hostVersion.UtcDateTime;
IEnumerable <FunctionDescriptor> messageFunctions = message.Functions ?? Enumerable.Empty <FunctionDescriptor>();
HostSnapshot newSnapshot = new HostSnapshot
{
HostVersion = hostVersion,
FunctionIds = CreateFunctionIds(messageFunctions)
};
if (_hostIndexManager.UpdateOrCreateIfLatest(hostId, newSnapshot))
{
IEnumerable <VersionedMetadata> existingFunctions = _functionIndexManager.List(hostId);
IEnumerable <VersionedMetadata> removedFunctions = existingFunctions
.Where((f) => !newSnapshot.FunctionIds.Any(i => f.Id == i));
foreach (VersionedMetadata removedFunction in removedFunctions)
{
// Remove all functions no longer in our list (unless they exist with a later host version than
// ours).
string fullId = new FunctionIdentifier(hostId, removedFunction.Id).ToString();
_functionIndexManager.DeleteIfLatest(fullId, hostVersion, removedFunction.ETag,
removedFunction.Version);
}
HeartbeatDescriptor heartbeat = message.Heartbeat;
IEnumerable <FunctionDescriptor> addedFunctions = messageFunctions
.Where((d) => !existingFunctions.Any(f => d.Id == f.Id));
foreach (FunctionDescriptor addedFunction in addedFunctions)
{
// Create any functions just appearing in our list (or update existing ones if they're earlier than
// ours).
FunctionSnapshot snapshot = CreateFunctionSnapshot(hostId, heartbeat, addedFunction, hostVersion);
_functionIndexManager.CreateOrUpdateIfLatest(snapshot);
}
// Update any functions appearing in both lists provided they're still earlier than ours (or create them
// if they've since been deleted).
var possiblyUpdatedFunctions = existingFunctions
.Join(messageFunctions, (f) => f.Id, (d) => d.Id, (f, d) => new
{
Descriptor = d,
HostVersion = f.Version,
ETag = f.ETag
});
foreach (var possiblyUpdatedFunction in possiblyUpdatedFunctions)
{
FunctionSnapshot snapshot = CreateFunctionSnapshot(hostId, heartbeat,
possiblyUpdatedFunction.Descriptor, hostVersion);
_functionIndexManager.UpdateOrCreateIfLatest(snapshot, possiblyUpdatedFunction.ETag,
possiblyUpdatedFunction.HostVersion);
}
}
// Delete any functions we may have added or updated that are no longer in the index.
// The create and update calls above may have occured after another instance started processing a later
// version of this host. If that instance had already read the existing function list before we added the
// function, it would think the function had already been deleted. In the end, we can't leave a function
// around unless it's still in the host index after we've added or updated it.
HostSnapshot finalSnapshot = _hostIndexManager.Read(hostId);
IEnumerable <FunctionDescriptor> functionsRemovedAfterThisHostVersion;
if (finalSnapshot == null)
{
functionsRemovedAfterThisHostVersion = messageFunctions;
}
else if (finalSnapshot.HostVersion.UtcDateTime > hostVersionUtc)
{
// Note that we base the list of functions to delete on what's in the HostStartedMessage, not what's in
// the addedFunctions and possibleUpdatedFunctions variables, as this instance could have been aborted
// and resumed and could lose state like those local variables.
functionsRemovedAfterThisHostVersion = messageFunctions.Where(
f => !finalSnapshot.FunctionIds.Any((i) => f.Id == i));
}
else
{
functionsRemovedAfterThisHostVersion = Enumerable.Empty <FunctionDescriptor>();
}
foreach (FunctionDescriptor functionNoLongerInSnapshot in functionsRemovedAfterThisHostVersion)
{
string fullId = new FunctionIdentifier(hostId, functionNoLongerInSnapshot.Id).ToString();
_functionIndexManager.DeleteIfLatest(fullId, hostVersionUtc);
}
_functionIndexVersionManager.UpdateOrCreateIfLatest(newSnapshot.HostVersion);
}
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);
}
internal static async Task <JobHostContext> CreateAndLogHostStartedAsync(
IStorageAccountProvider storageAccountProvider,
IFunctionIndexProvider functionIndexProvider,
IBindingProvider bindingProvider,
IHostIdProvider hostIdProvider,
IHostInstanceLoggerProvider hostInstanceLoggerProvider,
IFunctionInstanceLoggerProvider functionInstanceLoggerProvider,
IFunctionOutputLoggerProvider functionOutputLoggerProvider,
IQueueConfiguration queueConfiguration,
IBackgroundExceptionDispatcher backgroundExceptionDispatcher,
IConsoleProvider consoleProvider,
CancellationToken shutdownToken,
CancellationToken cancellationToken)
{
using (CancellationTokenSource combinedCancellationSource =
CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, shutdownToken))
{
CancellationToken combinedCancellationToken = combinedCancellationSource.Token;
await WriteSiteExtensionManifestAsync(combinedCancellationToken);
IStorageAccount dashboardAccount = await storageAccountProvider.GetDashboardAccountAsync(
combinedCancellationToken);
IHostInstanceLogger hostInstanceLogger = await hostInstanceLoggerProvider.GetAsync(
combinedCancellationToken);
IFunctionInstanceLogger functionInstanceLogger = await functionInstanceLoggerProvider.GetAsync(
combinedCancellationToken);
IFunctionOutputLogger functionOutputLogger = await functionOutputLoggerProvider.GetAsync(
combinedCancellationToken);
IFunctionIndex functions = await functionIndexProvider.GetAsync(combinedCancellationToken);
IListenerFactory functionsListenerFactory = new HostListenerFactory(functions.ReadAll());
FunctionExecutor executor = new FunctionExecutor(functionInstanceLogger, functionOutputLogger,
backgroundExceptionDispatcher);
TextWriter consoleOut = consoleProvider.Out;
IFunctionExecutor hostCallExecutor;
IListener listener;
HostOutputMessage hostOutputMessage;
if (dashboardAccount != null)
{
string hostId = await hostIdProvider.GetHostIdAsync(cancellationToken);
string sharedQueueName = HostQueueNames.GetHostQueueName(hostId);
IStorageQueueClient dashboardQueueClient = dashboardAccount.CreateQueueClient();
IStorageQueue sharedQueue = dashboardQueueClient.GetQueueReference(sharedQueueName);
IListenerFactory sharedQueueListenerFactory = new HostMessageListenerFactory(sharedQueue,
queueConfiguration, backgroundExceptionDispatcher, consoleOut, functions,
functionInstanceLogger);
Guid hostInstanceId = Guid.NewGuid();
string instanceQueueName = HostQueueNames.GetHostQueueName(hostInstanceId.ToString("N"));
IStorageQueue instanceQueue = dashboardQueueClient.GetQueueReference(instanceQueueName);
IListenerFactory instanceQueueListenerFactory = new HostMessageListenerFactory(instanceQueue,
queueConfiguration, backgroundExceptionDispatcher, consoleOut, functions,
functionInstanceLogger);
HeartbeatDescriptor heartbeatDescriptor = new HeartbeatDescriptor
{
SharedContainerName = HostContainerNames.Hosts,
SharedDirectoryName = HostDirectoryNames.Heartbeats + "/" + hostId,
InstanceBlobName = hostInstanceId.ToString("N"),
ExpirationInSeconds = (int)HeartbeatIntervals.ExpirationInterval.TotalSeconds
};
IRecurrentCommand heartbeatCommand = new UpdateHostHeartbeatCommand(new HeartbeatCommand(
dashboardAccount,
heartbeatDescriptor.SharedContainerName,
heartbeatDescriptor.SharedDirectoryName + "/" + heartbeatDescriptor.InstanceBlobName));
IEnumerable <MethodInfo> indexedMethods = functions.ReadAllMethods();
Assembly hostAssembly = GetHostAssembly(indexedMethods);
string displayName = hostAssembly != null?hostAssembly.GetName().Name : "Unknown";
hostOutputMessage = new DataOnlyHostOutputMessage
{
HostInstanceId = hostInstanceId,
HostDisplayName = displayName,
SharedQueueName = sharedQueueName,
InstanceQueueName = instanceQueueName,
Heartbeat = heartbeatDescriptor,
WebJobRunIdentifier = WebJobRunIdentifier.Current
};
hostCallExecutor = CreateHostCallExecutor(instanceQueueListenerFactory, heartbeatCommand,
backgroundExceptionDispatcher, shutdownToken, executor);
IListenerFactory hostListenerFactory = new CompositeListenerFactory(functionsListenerFactory,
sharedQueueListenerFactory, instanceQueueListenerFactory);
listener = CreateHostListener(hostListenerFactory, heartbeatCommand, backgroundExceptionDispatcher,
shutdownToken, executor);
// Publish this to Azure logging account so that a web dashboard can see it.
await LogHostStartedAsync(functions, hostOutputMessage, hostInstanceLogger,
combinedCancellationToken);
}
else
{
hostCallExecutor = new ShutdownFunctionExecutor(shutdownToken, executor);
IListener factoryListener = new ListenerFactoryListener(functionsListenerFactory, executor);
IListener shutdownListener = new ShutdownListener(shutdownToken, factoryListener);
listener = shutdownListener;
hostOutputMessage = new DataOnlyHostOutputMessage();
}
executor.HostOutputMessage = hostOutputMessage;
IEnumerable <FunctionDescriptor> descriptors = functions.ReadAllDescriptors();
int descriptorsCount = descriptors.Count();
if (descriptorsCount == 0)
{
consoleOut.WriteLine(
"No functions found. Try making job classes and methods public.");
}
else
{
consoleOut.WriteLine("Found the following functions:");
foreach (FunctionDescriptor descriptor in descriptors)
{
consoleOut.WriteLine(descriptor.FullName);
}
}
return(new JobHostContext(functions, hostCallExecutor, listener, consoleOut));
}
}
public static RecentInvocationEntry Create(IDictionary<string, string> metadata)
{
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
Guid? id = GetMetadataNullableGuid(metadata, IdKey);
if (!id.HasValue)
{
throw new InvalidOperationException("Invalid recent function instance ID");
}
string displayTitle = GetMetadataString(metadata, DisplayTitleKey);
DateTimeOffset? startTime = GetMetadataNullableDateTimeOffset(metadata, StartTimeKey);
DateTimeOffset? endTime = GetMetadataNullableDateTimeOffset(metadata, EndTimeKey);
bool? succeeded = GetMetadataNullableBoolean(metadata, SucceededKey);
string heartbeatSharedContainerName = GetMetadataString(metadata, HeartbeatSharedContainerNameKey);
string heartbeatSharedDirectoryName = GetMetadataString(metadata, HeartbeatSharedDirectoryNameKey);
string heartbeatInstanceBlobName = GetMetadataString(metadata, HeartbeatInstanceBlobNameKey);
int? heartbeatExpirationInSeconds = GetMetadataNullableInt32(metadata, HeartbeatExpirationInSecondsKey);
HeartbeatDescriptor heartbeat;
if (heartbeatSharedContainerName != null && heartbeatSharedDirectoryName != null
&& heartbeatInstanceBlobName != null && heartbeatExpirationInSeconds.HasValue)
{
heartbeat = new HeartbeatDescriptor
{
SharedContainerName = heartbeatSharedContainerName,
SharedDirectoryName = heartbeatSharedDirectoryName,
InstanceBlobName = heartbeatInstanceBlobName,
ExpirationInSeconds = heartbeatExpirationInSeconds.Value
};
}
else
{
heartbeat = null;
}
return new RecentInvocationEntry(id.Value, displayTitle, startTime, endTime, succeeded, heartbeat);
}
