protected virtual Yield PutConfig(DreamContext context, DreamMessage request, Result <DreamMessage> response)
{
XDoc config = request.ToDocument();
if (config.Name != "config")
{
throw new DreamBadRequestException("bad document type");
}
if (IsStarted)
{
throw new DreamBadRequestException("service must be stopped first");
}
_timerFactory = TaskTimerFactory.Create(this);
// configure service container
var lifetimeScope = _env.CreateServiceLifetimeScope(this, (c, b) => PreInitializeLifetimeScope(c, b, config));
// call container-less start (which contains shared start logic)
yield return(Coroutine.Invoke(Start, request.ToDocument(), new Result()));
// call start with container for sub-classes that want to resolve instances at service start
yield return(Coroutine.Invoke(Start, config, lifetimeScope, new Result()));
response.Return(DreamMessage.Ok(new XDoc("service-info")
.Start("private-key")
.Add(DreamCookie.NewSetCookie("service-key", PrivateAccessKey, Self.Uri).AsSetCookieDocument)
.End()
.Start("internal-key")
.Add(DreamCookie.NewSetCookie("service-key", InternalAccessKey, Self.Uri).AsSetCookieDocument)
.End()
));
}
//--- Constructors ---
internal InMemoryKeyValueCache(ISerializer serializer, int maxSize, TaskTimerFactory timerFactory)
{
_serializer = serializer;
_maxSize = maxSize;
_flushTimer = timerFactory.New(TimeSpan.FromSeconds(1), Flush, null, TaskEnv.None);
_cache = new ExpiringDictionary <string, Entry>(timerFactory);
}
private static void SigTermHandler()
{
Console.WriteLine("(initializing SIGTERM handler)");
UnixSignal.WaitAny(new[] { new UnixSignal(Signum.SIGTERM) });
TaskTimerFactory.ShutdownAll();
_host.Dispose();
}
//--- Constructors ---
public SearchInstanceData(string indexPath, Analyzer analyzer, UpdateDelayQueue queue, TimeSpan commitInterval, TaskTimerFactory taskTimerFactory)
{
_analyzer = analyzer;
_directory = FSDirectory.GetDirectory(indexPath);
// Note (arnec): Needed with SimpleFSLock, since a hard shutdown will have left the lock dangling
IndexWriter.Unlock(_directory);
try {
_writer = new IndexWriter(_directory, _analyzer, IndexWriter.MaxFieldLength.UNLIMITED);
} catch (CorruptIndexException e) {
_log.WarnFormat("The Search index at {0} is corrupt. You must repair or delete it before restarting the service. If you delete it, you must rebuild your index after service restart.", indexPath);
if (e.Message.StartsWith("Unknown format version"))
{
_log.Warn("The index is considered corrupt because it's an unknown version. Did you accidentally downgrade your install?");
}
throw;
}
_reader = IndexReader.Open(_directory);
_searcher = new IndexSearcher(_reader);
_queue = queue;
_commitInterval = commitInterval;
_taskTimerFactory = taskTimerFactory;
if (_commitInterval != TimeSpan.Zero)
{
_commitTimer = _taskTimerFactory.New(_commitInterval, Commit, null, TaskEnv.None);
}
}
//--- Constructors ---
/// <summary>
/// Constructor for creating an instance.
/// </summary>
/// <param name="client">ISqsClient instance.</param>
/// <param name="queueName">Queue name.</param>
/// <param name="timerFactory">TimerFactory instance.</param>
public SqsQueueDelayedSendClient(ISqsClient client, SqsQueueName queueName, TaskTimerFactory timerFactory)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
this.QueueName = queueName;
_client = client;
_timedSendAccumulator = new TimedAccumulator <KeyValuePair <int, string> >(items => AsyncUtil.ForkBackgroundSender(() => BatchSendMessages(items)), SqsUtils.MAX_NUMBER_OF_BATCH_SEND_MESSAGES, AUTOFLUSH_TIME, timerFactory);
}
//--- Constructors ---
/// <summary>
/// Constructor for creating an instance.
/// </summary>
/// <param name="client">ISqsClient instance.</param>
/// <param name="timerFactory">TimeFactory instance.</param>
public SqsDelayedSendClient(ISqsClient client, TaskTimerFactory timerFactory)
{
if (client == null)
{
throw new ArgumentNullException("client");
}
if (timerFactory == null)
{
throw new ArgumentNullException("timerFactory");
}
_client = client;
_timerFactory = timerFactory;
}
//--- Constructors ---
public LocalInstanceManager(DekiWikiService dekiService, TaskTimerFactory timerFactory) : base(dekiService, timerFactory)
{
var dekiServiceConfig = dekiService.Config;
if (dekiServiceConfig["wikis/config"].IsEmpty)
{
//Not in cluster mode (no other wikis defined): run all hosts under default wiki.
AssociateHostnameWithWiki("*", DEFAULT_WIKI_ID);
}
else
{
foreach (XDoc wikiDoc in dekiServiceConfig["wikis/config"])
{
var wikiId = wikiDoc["@id"].AsText;
AssociateHostnameWithWiki(wikiDoc["host"].Select(hostDoc => hostDoc.Contents).ToArray(), wikiId);
}
}
}
//--- Constructors ---
public RemoteInstanceManager(DekiWikiService dekiService, TaskTimerFactory timerFactory, XUri directoryUri, string tempPath) : base(dekiService, timerFactory)
{
// validate temp folder
_tempPath = tempPath;
if (!Directory.Exists(_tempPath))
{
throw new ArgumentException("temp folder does not exist", "tempPath");
}
// check remote directory
_directory = Plug.New(directoryUri);
var testMsg = _directory.GetAsync().Wait();
if (!testMsg.IsSuccessful)
{
_log.WarnFormat("Error validating remote deki portal service at '{0}'", directoryUri);
}
}
//--- Constructors ---
/// <summary>
/// Create new client instance
/// </summary>
/// <param name="config">Client configuration.</param>
/// <param name="timerFactory">Timer factory.</param>
public AmazonS3Client(AmazonS3ClientConfig config, TaskTimerFactory timerFactory)
{
_config = config;
_bucketPlug = Plug.New(_config.S3BaseUri)
.WithS3Authentication(_config.PrivateKey, _config.PublicKey)
.WithTimeout(_config.Timeout)
.At(_config.Bucket);
_rootPlug = _bucketPlug;
if (!string.IsNullOrEmpty(_config.RootPath))
{
_keyRootParts = _config.RootPath.Split(new[] { "/" }, StringSplitOptions.RemoveEmptyEntries);
if (_keyRootParts != null && _keyRootParts.Any())
{
_rootPlug = _rootPlug.At(_keyRootParts);
}
}
_expirationEntries = new ExpiringHashSet <string>(timerFactory);
_expirationEntries.EntryExpired += OnDelete;
}
protected virtual Yield PutConfig(DreamContext context, DreamMessage request, Result <DreamMessage> response)
{
XDoc config = request.ToDocument();
if (config.Name != "config")
{
throw new DreamBadRequestException("bad document type");
}
if (IsStarted)
{
throw new DreamBadRequestException("service must be stopped first");
}
_timerFactory = TaskTimerFactory.Create(this);
// configure service container
var components = config["components"];
var servicecontainer = _env.CreateServiceContainer(this);
var builder = new ContainerBuilder();
builder.Register(_timerFactory).ExternallyOwned();
if (!components.IsEmpty)
{
_log.Debug("registering service level module");
builder.RegisterModule(new XDocAutofacContainerConfigurator(components, DreamContainerScope.Service));
}
builder.Build(servicecontainer);
// call container-less start (which contains shared start logic)
yield return(Coroutine.Invoke(Start, request.ToDocument(), new Result()));
// call start with container for sub-classes that want to resolve instances at service start
yield return(Coroutine.Invoke(Start, config, servicecontainer, new Result()));
response.Return(DreamMessage.Ok(new XDoc("service-info")
.Start("private-key")
.Add(DreamCookie.NewSetCookie("service-key", PrivateAccessKey, Self.Uri).AsSetCookieDocument)
.End()
.Start("internal-key")
.Add(DreamCookie.NewSetCookie("service-key", InternalAccessKey, Self.Uri).AsSetCookieDocument)
.End()
));
}
//--- Constructors ---
public S3Storage(XDoc configuration, ILog log)
{
_timerFactory = TaskTimerFactory.Create(this);
_log = log;
_publicKey = configuration["publickey"].AsText;
_privateKey = configuration["privatekey"].AsText;
_bucket = configuration["bucket"].AsText;
_prefix = configuration["prefix"].AsText;
if (string.IsNullOrEmpty(_publicKey))
{
throw new ArgumentException("Invalid Amazon S3 publickey");
}
if (string.IsNullOrEmpty(_privateKey))
{
throw new ArgumentException("Invalid Amazon S3 privatekey");
}
if (string.IsNullOrEmpty(_bucket))
{
throw new ArgumentException("Invalid Amazon S3 bucket");
}
if (string.IsNullOrEmpty(_prefix))
{
throw new ArgumentException("Invalid Amazon S3 prefix");
}
_tempDirectory = Path.Combine(Path.GetTempPath(), "s3_cache_" + XUri.EncodeSegment(_prefix));
if (Directory.Exists(_tempDirectory))
{
Directory.Delete(_tempDirectory, true);
}
Directory.CreateDirectory(_tempDirectory);
_allowRedirects = configuration["allowredirects"].AsBool ?? false;
_redirectTimeout = TimeSpan.FromSeconds(configuration["redirecttimeout"].AsInt ?? 60);
_cacheTtl = (configuration["cachetimeout"].AsInt ?? 60 * 60).Seconds();
// initialize S3 plug
_s3 = Plug.New("http://s3.amazonaws.com", TimeSpan.FromSeconds(configuration["timeout"].AsDouble ?? DEFAUTL_S3_TIMEOUT)).WithPreHandler(S3AuthenticationHeader).At(_bucket);
}
//--- Class methods ---
public static InstanceManager New(DekiWikiService dekiService, TaskTimerFactory timerFactory)
{
InstanceManager mgr;
var srcString = dekiService.Config["wikis/@src"].AsText;
if (!string.IsNullOrEmpty(srcString))
{
XUri remoteDirUri;
if (!XUri.TryParse(srcString, out remoteDirUri))
{
//TODO: build a specialized exception out of this
throw new ApplicationException(string.Format("Configuration is not valid. wikis/@src ({0})is not a valid url!", srcString));
}
mgr = new RemoteInstanceManager(dekiService, timerFactory, remoteDirUri, dekiService.TempPath);
}
else
{
mgr = new LocalInstanceManager(dekiService, timerFactory);
}
mgr._maxInstances = dekiService.Config["wikis/@max"].AsInt ?? int.MaxValue;
var timeoutSecs = dekiService.Config["wikis/@ttl"].AsDouble;
if (timeoutSecs == null || timeoutSecs == 0)
{
mgr._inactiveInstanceTimeOut = TimeSpan.MaxValue;
}
else
{
mgr._inactiveInstanceTimeOut = TimeSpan.FromSeconds(timeoutSecs.Value);
}
var retryInterval = dekiService.Config["wikis/@retry-interval"].AsDouble ?? 10;
mgr._abandonedInstanceRetryInterval = TimeSpan.FromSeconds(retryInterval);
mgr._minInstanceIdletime = TimeSpan.FromSeconds(dekiService.Config["wikis/@idletime"].AsDouble ?? 60);
return(mgr);
}
//--- Constructors ---
/// <summary>
/// Create a new hashset
/// </summary>
/// <param name="taskTimerFactory">The timer factory to create the set's timer from</param>
public ExpiringDictionary(TaskTimerFactory taskTimerFactory) : this(taskTimerFactory, false)
{
}
//--- Constructors ---
public ExpiringSet(TaskTimerFactory taskTimerFactory, bool autoRefresh)
{
_taskTimerFactory = taskTimerFactory;
_autoRefresh = autoRefresh;
_expireTimer = _taskTimerFactory.New(DateTime.MaxValue, OnExpire, null, TaskEnv.None);
}
//--- Class Methods ---
private static int Main(string[] args)
{
bool useTty = true;
TimeSpan time;
// process command line arguments
XDoc config = new XDoc("config");
for (int i = 0; i < args.Length; i += 2)
{
string key = args[i].ToLowerInvariant();
string value = ((i + 1) < args.Length) ? args[i + 1] : string.Empty;
switch (key)
{
case "help":
PrintUsage();
return(0);
case "notty":
--i;
useTty = false;
break;
case "capture-stack-trace":
--i;
DebugUtil.CaptureStackTrace = true;
break;
case "nolog":
--i;
// NOTE (steveb): this option used to disable logging, but was removed in favor of using the automatic re-reading of app.config by log4net
break;
case "settings":
case "config":
if (!File.Exists(value))
{
WriteError(key, "config file not found");
return(1);
}
config = XDocFactory.LoadFrom(value, MimeType.XML);
break;
case "script":
config.Start("script").Attr("src", value).End();
break;
case "ip":
case "host":
config.Elem("host", value);
break;
case "http-port":
case "path-prefix":
case "server-path":
case "server-name":
case "storage-dir":
case "connect-limit":
case "apikey":
case "guid":
config.Elem(key, value);
break;
case "public-uri":
case "root-uri":
config.Elem("uri.public", value);
break;
case "service-dir":
config.Elem("storage-dir", value);
break;
case "collect-interval":
int interval;
if (!int.TryParse(value, out interval))
{
WriteError(key, "invalid collection interval (must be an integer representing seconds)");
return(1);
}
if (interval > 0)
{
DebugUtil.SetCollectionInterval(TimeSpan.FromSeconds(interval));
}
break;
case "auth":
config.Elem("authentication-shemes", value);
break;
default:
WriteError(key, "unknown setting");
return(1);
}
}
try {
// initialize environment
if (config["apikey"].IsEmpty)
{
string apikey = StringUtil.CreateAlphaNumericKey(32);
config.Elem("apikey", apikey);
Console.WriteLine("Dream Host APIKEY: {0}", apikey);
}
Console.WriteLine("-------------------- initializing");
time = DebugUtil.Stopwatch(() => {
_host = new DreamHost(config);
});
Console.WriteLine("-------------------- initialized {0} secs", time.TotalSeconds);
// execute scripts
time = DebugUtil.Stopwatch(() => {
_host.RunScripts(config, null);
});
Console.WriteLine("-------------------- ready {0} secs", time.TotalSeconds);
// for UNIX systems, let's also listen to SIGTERM
if (SysUtil.IsUnix)
{
new Thread(SigTermHandler)
{
IsBackground = true
}.Start();
}
// check if we can use the console
if (useTty)
{
int debuglevel = 0;
// wait for user input then exit
while (_host.IsRunning)
{
Thread.Sleep(250);
#region Interactive Key Handler
if (Console.KeyAvailable)
{
ConsoleKeyInfo key = Console.ReadKey(true);
switch (key.Key)
{
case ConsoleKey.Q:
case ConsoleKey.Escape:
case ConsoleKey.Spacebar:
Console.WriteLine("Shutting down");
return(0);
case ConsoleKey.G:
Console.WriteLine("Full garbage collection pass");
System.GC.Collect();
break;
case ConsoleKey.C:
Console.Clear();
break;
case ConsoleKey.D:
switch (++debuglevel)
{
default:
debuglevel = 0;
Threading.RendezVousEvent.CaptureTaskState = false;
DebugUtil.CaptureStackTrace = false;
Console.WriteLine("Debug capture: none");
break;
case 1:
Threading.RendezVousEvent.CaptureTaskState = true;
DebugUtil.CaptureStackTrace = false;
Console.WriteLine("Debug capture: task-state only");
break;
case 2:
Threading.RendezVousEvent.CaptureTaskState = true;
DebugUtil.CaptureStackTrace = true;
Console.WriteLine("Debug capture: task-state and stack-trace");
break;
}
break;
case ConsoleKey.I: {
Console.WriteLine("--- System Information ---");
// show memory
Console.WriteLine("Allocated memory: {0}", GC.GetTotalMemory(false));
// show threads
int workerThreads;
int completionThreads;
int dispatcherThreads;
int backgroundThreads;
AsyncUtil.GetAvailableThreads(out workerThreads, out completionThreads, out dispatcherThreads, out backgroundThreads);
int maxWorkerThreads;
int maxCompletionThreads;
int maxDispatcherThreads;
int maxBackgroundThreads;
AsyncUtil.GetMaxThreads(out maxWorkerThreads, out maxCompletionThreads, out maxDispatcherThreads, out maxBackgroundThreads);
Console.WriteLine("Thread-pool worker threads available: {0} (max: {1})", workerThreads, maxWorkerThreads);
Console.WriteLine("Thread-pool completion threads available: {0} (max: {1})", completionThreads, maxCompletionThreads);
Console.WriteLine("Dispatcher threads available: {0} (max: {1})", dispatcherThreads, maxDispatcherThreads);
Console.WriteLine("Thread-pool background worker threads available: {0} (max: {1})", backgroundThreads, maxBackgroundThreads);
// show pending/waiting timers
var taskTimerStats = Tasking.TaskTimerFactory.GetStatistics();
Console.WriteLine("Pending timer objects: {0}", taskTimerStats.PendingTimers);
Console.WriteLine("Queued timer objects: {0}", taskTimerStats.QueuedTimers);
Console.WriteLine("Timer retries: {0}", taskTimerStats.Retries);
// show activities
var activities = _host.ActivityMessages;
Console.WriteLine("Host activities: {0}", activities.Length);
foreach (var activity in activities)
{
Console.WriteLine("* {0}: {1}", activity.Created.ToString(XDoc.RFC_DATETIME_FORMAT), activity.Description);
}
// show pending tasks
Console.WriteLine("Pending rendez-vous events: {0}", Threading.RendezVousEvent.PendingCounter);
Console.WriteLine("Pending results: {0}", AResult.PendingCounter);
lock (Threading.RendezVousEvent.Pending) {
int count = 0;
foreach (var entry in Threading.RendezVousEvent.Pending.Values)
{
++count;
if (entry.Key != null)
{
var context = entry.Key.GetState <DreamContext>();
if (context != null)
{
Console.WriteLine("--- DreamContext for pending rendez-vous event #{0} ---", count);
Console.WriteLine(context.Uri.ToString(false));
}
}
Console.WriteLine();
if (entry.Value != null)
{
Console.WriteLine("--- Stack trace for pending rendez-vous event #{0} ---", count);
Console.WriteLine(entry.Value.ToString());
}
}
}
Console.WriteLine("--------------------------");
}
break;
case ConsoleKey.H:
Console.WriteLine("Help:");
Console.WriteLine(" Q - quit application");
Console.WriteLine(" ESC - quit application");
Console.WriteLine(" SPACE - quit application");
Console.WriteLine(" G - full garbage collection");
Console.WriteLine(" C - clear screen");
Console.WriteLine(" D - set debug capture level");
Console.WriteLine(" I - show system information (memory, threads, pending tasks)");
Console.WriteLine(" H - this help text");
break;
}
}
#endregion
}
}
else
{
_host.WaitUntilShutdown();
}
} finally {
Console.WriteLine("-------------------- shutting down");
TaskTimerFactory.ShutdownAll();
if (_host != null)
{
_host.Dispose();
}
}
return(0);
}
//--- Constructors ---
protected InstanceManager(DekiWikiService dekiService, TaskTimerFactory timerFactory)
{
_dekiService = dekiService;
_timerFactory = timerFactory;
}
//--- Constructors ---
public TimedAccumulator(Action <IEnumerable <T> > handler, int maxItems, TimeSpan autoFlushDelay, TaskTimerFactory timerFactory)
{
if (handler == null)
{
throw new ArgumentNullException("handler");
}
_accumulator = new AutoFlushContainer <List <T> >(
initialState: new List <T>(),
flush: (list, disposing) => {
if (list.Any())
{
var items = list.GetRange(0, Math.Min(list.Count, maxItems));
list.RemoveRange(0, items.Count);
handler(items);
}
},
maxUpdates: maxItems,
autoFlushDelay: autoFlushDelay,
timerFactory: timerFactory
);
}
//--- Constructors ---
/// <summary>
/// Create a new factory instance.
/// </summary>
/// <param name="timer">The timer factory to be provided to cache instances.</param>
/// <param name="factoryMethod">A function for creating a new cache instance from an <see cref="ISerializer"/> instance and timer factory.</param>
public KeyValueCacheFactory(TaskTimerFactory timer, Func <ISerializer, TaskTimerFactory, IKeyValueCache> factoryMethod)
{
_timer = timer;
_factoryMethod = factoryMethod;
}
//--- Constructors ---
public Listener(string queuename, Action <AwsSqsMessage> callback, IAwsSqsClient client, TaskTimerFactory timerFactory, TimeSpan interval)
{
_queuename = queuename;
_callback = callback;
_client = client;
_cache = new ExpiringHashSet <string>(timerFactory);
_cacheTimer = ((interval.TotalSeconds * 2 < 60) ? 60 : interval.TotalSeconds * 2 + 1).Seconds();
_pollTimer = timerFactory.New(tt => Coroutine.Invoke(PollSqs, new Result())
.WhenDone(
r => {
if (_isDisposed)
{
return;
}
_pollTimer.Change(interval, TaskEnv.None);
}),
null
);
_pollTimer.Change(0.Seconds(), TaskEnv.None);
}
//--- Constructors ---
public SqsPollClient(IAwsSqsClient client, TaskTimerFactory timerFactory)
{
_client = client;
_timerFactory = timerFactory;
}
// --- Constructors ---
public DreamCache(TaskTimerFactory taskTimerFactory) : this(taskTimerFactory, TimeSpan.FromSeconds(DEFAULT_EXPIRATION_SECS))
{
}
/// <summary>
/// Create a new factory instance.
/// </summary>
/// <param name="maxSize">Maximum number of bytes of memory the cache should use for stored items</param>
/// <param name="timer">Timer factory to provide to the cache instance.</param>
public InMemoryKeyValueCacheFactory(int maxSize, TaskTimerFactory timer) : base(timer, (s, t) => new InMemoryKeyValueCache(s, maxSize, t))
{
}
//--- Constructors ---
/// <summary>
/// Create a new factory instance.
/// </summary>
/// <param name="timer">Timer factory to provide to the cache instance.</param>
public InMemoryKeyValueCacheFactory(TaskTimerFactory timer) : this(DEFAULT_MAX_SIZE, timer)
{
}
//--- Constructors ---
public AutoFlushContainer(T initialState, FlushDelegate flush, int maxUpdates, TimeSpan autoFlushDelay, TaskTimerFactory timerFactory)
{
if (flush == null)
{
throw new ArgumentNullException("flush");
}
if (maxUpdates <= 0)
{
throw new ArgumentException("maxItems must be positive", "maxUpdates");
}
if (autoFlushDelay <= TimeSpan.Zero)
{
throw new ArgumentException("maxDelay must be positive", "autoFlushDelay");
}
_state = initialState;
_flush = flush;
_maxUpdates = maxUpdates;
_autoFlushDelay = autoFlushDelay;
_autoFlushTimer = timerFactory.New(DateTime.MaxValue, AutoFlushCallback, null, TaskEnv.None);
}
/// <summary>
/// Create a new hashset
/// </summary>
/// <param name="taskTimerFactory">The timer factory to create the set's timer from</param>
/// <param name="autoRefresh"><see langword="True"/> if accessing an entry should extend the expiration time by the time-to-live</param>
public ExpiringDictionary(TaskTimerFactory taskTimerFactory, bool autoRefresh)
{
_set = new ExpiringSet <TKey, TValue>(taskTimerFactory, autoRefresh);
_set.CollectionChanged += OnCollectionChanged;
_set.EntriesExpired += OnEntriesExpired;
}
//--- Constructors ---
/// <summary>
/// Create a new hashset
/// </summary>
/// <param name="taskTimerFactory">The timer factory to create the set's timer from</param>
public ExpiringHashSet(TaskTimerFactory taskTimerFactory) : this(taskTimerFactory, false)
{
}
/// <summary>
/// Create a new hashset
/// </summary>
/// <param name="taskTimerFactory">The timer factory to create the set's timer from</param>
/// <param name="autoRefresh"><see langword="True"/> if accessing an entry should extend the expiration time by the time-to-live</param>
public ExpiringHashSet(TaskTimerFactory taskTimerFactory, bool autoRefresh)
{
_set = new ExpiringSet <T, T>(taskTimerFactory, autoRefresh);
_set.CollectionChanged += OnCollectionChanged;
_set.EntriesExpired += OnEntriesExpired;
}
//--- Constructor ---
internal DekiInstance(DekiWikiService deki, string id, XDoc instanceConfig, ILicenseController licenseController)
{
if (deki == null)
{
throw new ArgumentNullException("deki");
}
if (string.IsNullOrEmpty(id))
{
throw new ArgumentNullException("id");
}
this.Id = id;
// Note (arnec): this is now the the third place we define a wikiid based logger repository, however constructors interdependencies
// currently neccessitates this duplication, and fortunately it is mostly an aesthetic issue.
_loggerRepository = new ContextLoggerRepository("[" + Id + "] ");
_log = _loggerRepository.Get(GetType());
this.TimerFactory = TaskTimerFactory.Create(this);
this.Cache = new DreamCache(TimerFactory);
var cacheFactory = new InMemoryKeyValueCacheFactory(TimerFactory);
var searchSerializer = new SearchSerializer();
cacheFactory.SetSerializer <SearchResult>(searchSerializer);
cacheFactory.SetSerializer <SearchResultDetail>(searchSerializer);
this.SearchCache = cacheFactory.Create();
this.Config = instanceConfig;
_licenseController = licenseController;
this.Log = LogManager.GetLogger(deki.GetType().Name + "_" + id);
_deki = deki;
_status = DekiInstanceStatus.CREATED;
_apiKey = Config[ConfigBL.SECURITY_APIKEY].AsText;
foreach (XDoc hostDoc in Config["host"])
{
string host = hostDoc.Contents;
if (!StringUtil.EqualsInvariantIgnoreCase(host, "*"))
{
string port = hostDoc["@port"].AsText;
string scheme = hostDoc["@https"].AsBool.GetValueOrDefault() ? "https://" : "http://";
string uri = scheme + host + (string.IsNullOrEmpty(port) ? "" : ":" + port);
_canonicalUri = new XUri(uri);
_log.DebugFormat("divined canonical use from hosts as {0}", _canonicalUri);
break;
}
}
if (_canonicalUri == null)
{
// Note (arnec): this is a best guess fallback. It will only work in these scenarios:
// a) The host was set up with a uri.public that has ends in @api and with the @api points to the site uri, or
// b) The api lives on the same machine as the site, so that deriving uri.public for the host from the machine
// IP happens to point to the same machine
// Either way it relies on the hard-coded assumption that the api is accessible via {site}/@api
_canonicalUri = DreamContext.Current.ServerUri;
if (_canonicalUri.LastSegment.EqualsInvariantIgnoreCase("@api"))
{
_canonicalUri = _canonicalUri.WithoutLastSegment();
}
_log.DebugFormat("using server uri as canonical uri: {0}", _canonicalUri);
}
else
{
// Note (arnec): Propagating a much hard-coded assumption, i.e. that the Api for any Deki instance can be accessed
// at the instances' canonical uri plus @api
// register the api uri with the dream host so that requests originating from within Dream are guaranteed to be locally routed
_deki.Env.At("status", "aliases").Post(new XDoc("aliases").Elem("uri.alias", _canonicalUri.At("@api")), new Result <DreamMessage>());
}
}
public DreamCache(TaskTimerFactory taskTimerFactory, TimeSpan defaultExpiration)
{
_expirationTime = defaultExpiration;
_expirations = new ExpiringHashSet <CacheItem>(taskTimerFactory);
_expirations.EntryExpired += OnExpiration;
}
