Пример #1
0
        private static async Task SetupAsync()
        {
            var letterTemplate = new Letter("", "TestRabbitServiceQueue", null, new LetterMetadata());
            var loggerFactory  = LoggerFactory.Create(builder => builder.AddConsole().SetMinimumLevel(LogLevel));

            _logger = loggerFactory.CreateLogger <ConsumerDataflow <WorkState> >();

            _hashingProvider = new Argon2ID_HashingProvider();
            var hashKey = await _hashingProvider.GetHashKeyAsync("passwordforencryption", "saltforencryption", 32).ConfigureAwait(false);

            _metricsProvider       = new NullMetricsProvider();
            _encryptionProvider    = new AesGcmEncryptionProvider(hashKey);
            _compressionProvider   = new LZ4PickleProvider();
            _serializationProvider = new Utf8JsonProvider();

            _rabbitService = new RabbitService(
                "Config.json",
                _serializationProvider,
                _encryptionProvider,
                _compressionProvider,
                loggerFactory);

            await _rabbitService
            .Topologer
            .CreateQueueAsync("TestRabbitServiceQueue")
            .ConfigureAwait(false);
        }
Пример #2
0
        public AvailabilityMetrics(IMetricsProvider metricsProvider, string storageFolder, ISystemTime time = null)
        {
            this.systemTime     = time ?? SystemTime.Instance;
            this.availabilities = new List <Availability>();
            this.edgeAgent      = new Lazy <Availability>(() => new Availability(Constants.EdgeAgentModuleName, this.CalculateEdgeAgentDowntime(), this.systemTime));

            Preconditions.CheckNotNull(metricsProvider, nameof(metricsProvider));
            this.running = metricsProvider.CreateGauge(
                "total_time_running_correctly_seconds",
                "The amount of time the module was specified in the deployment and was in the running state",
                new List <string> {
                "module_name"
            });

            this.expectedRunning = metricsProvider.CreateGauge(
                "total_time_expected_running_seconds",
                "The amount of time the module was specified in the deployment",
                new List <string> {
                "module_name"
            });

            string storageDirectory = Path.Combine(Preconditions.CheckNonWhiteSpace(storageFolder, nameof(storageFolder)), "availability");

            try
            {
                Directory.CreateDirectory(storageDirectory);
                this.checkpointFile       = Path.Combine(storageDirectory, "avaliability.checkpoint");
                this.updateCheckpointFile = new PeriodicTask(this.UpdateCheckpointFile, this.checkpointFrequency, this.checkpointFrequency, this.log, "Checkpoint Availability");
            }
            catch (Exception ex)
            {
                this.log.LogError(ex, "Could not create checkpoint directory");
            }
        }
Пример #3
0
        public WebApi(
            ILogger <IWebApi> logger,
            IMessageFactory messageFactory,
            ImpostorHqConfig config,
            IPasswordFile passwordProvider,
            ICryptoManager crypto,
            IWebApiUserFactory webApiUserFactory,
            IMetricsProvider metricsProvider,
            ILogManager logManager)
        {
            _logger          = logger;
            _messageFactory  = messageFactory;
            _passwords       = passwordProvider.Passwords;
            _crypto          = crypto;
            _userFactory     = webApiUserFactory;
            _metricsProvider = metricsProvider;
            _logManager      = logManager;

            _users    = new ConcurrentDictionary <IWebSocketConnection, WebApiUser>();
            _timeouts = new ConcurrentDictionary <IWebSocketConnection, int>();

            _server = new WebSocketServer($"ws://{config.Host}:{config.ApiPort}");

            _timer1S = new Timer(1000)
            {
                AutoReset = true
            };
            _timer1S.Elapsed += _timer1s_Elapsed;
            Start();
        }
Пример #4
0
        public bool Start()
        {
            Startup();
            m_log.Info("[ASSETINVENTORY]: Starting AssetInventory Server");

            try
            {
                ConfigFile = AssetInventoryConfig.LoadConfig(ConfigFile);
            }
            catch (Exception)
            {
                m_log.Error("[ASSETINVENTORY]: Failed to load the config.");
                return(false);
            }

            StorageProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AssetStorageProvider",
                                                             "asset_storage_provider", false) as IAssetStorageProvider;
            m_backends.Add(StorageProvider);

            InventoryProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/InventoryStorageProvider",
                                                               "inventory_storage_provider", false) as IInventoryStorageProvider;
            m_backends.Add(InventoryProvider);

            MetricsProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/MetricsProvider",
                                                             "metrics_provider", false) as IMetricsProvider;
            m_backends.Add(MetricsProvider);

            try
            {
                InitHttpServer((uint)ConfigFile.Configs["Config"].GetInt("listen_port"));
            }
            catch (Exception ex)
            {
                m_log.Error("[ASSETINVENTORY]: Initializing the HTTP server failed, shutting down: " + ex.Message);
                Shutdown();
                return(false);
            }

            LoadDefaultAssets();

            AuthenticationProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AuthenticationProvider",
                                                                    "authentication_provider", false) as IAuthenticationProvider;
            m_backends.Add(AuthenticationProvider);

            AuthorizationProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AuthorizationProvider",
                                                                   "authorization_provider", false) as IAuthorizationProvider;
            m_backends.Add(AuthorizationProvider);

            m_frontends.AddRange(LoadAssetInventoryServerPlugins("/OpenSim/AssetInventoryServer/Frontend", "frontends"));

            // Inform the user if we don't have any frontends at this point.
            if (m_frontends.Count == 0)
            {
                m_log.Info("[ASSETINVENTORY]: Starting with no frontends loaded, which isn't extremely useful. Did you set the 'frontends' configuration parameter?");
            }

            return(true);
        }
Пример #5
0
        public MetricsServiceShould()
        {
            _counter = new Mock <ICounter>();
            _counter
            .SetupGet(counter => counter.Name)
            .Returns(Fixture.Create <string>());

            _metrics = new MetricsProvider(new[] { _counter.Object });
        }
Пример #6
0
        public MetricsListener(MetricsListenerConfig listenerConfig, IMetricsProvider metricsProvider)
        {
            this.listenerConfig = Preconditions.CheckNotNull(listenerConfig, nameof(listenerConfig));
            string url = GetMetricsListenerUrlPrefix(listenerConfig);

            this.httpListener = new HttpListener();
            this.httpListener.Prefixes.Add(url);
            this.metricsProvider = Preconditions.CheckNotNull(metricsProvider, nameof(metricsProvider));
        }
Пример #7
0
        // Note this requires the prometheus-net library to have been initilized using App.UseMetricServer()
        public static void InitWithAspNet(IMetricsProvider metricsProvider, ILogger logger)
        {
            Preconditions.CheckNotNull(metricsProvider, nameof(metricsProvider));

            lock (StateLock)
            {
                logger.LogInformation("Using Asp Net server for metrics");
                Instance = metricsProvider;
            }
        }
Пример #8
0
        public MetricsListener(MetricsListenerConfig listenerConfig, IMetricsProvider metricsProvider)
        {
            if (!(metricsProvider is MetricsProvider prometheusMetricsProvider))
            {
                throw new ArgumentException($"IMetricsProvider of type {metricsProvider.GetType()} is incompatible with {this.GetType()}");
            }

            this.listenerConfig = Preconditions.CheckNotNull(listenerConfig, nameof(listenerConfig));
            this.metricServer   = new MetricServer(listenerConfig.Host, listenerConfig.Port, listenerConfig.Suffix.Trim('/') + '/', prometheusMetricsProvider.DefaultRegistry);
        }
Пример #9
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        public MetricsController(ILogger <MetricsController> logger, IMetricsProvider provider = null !)
        {
            this.logger   = logger;
            this.provider = provider;

            if (provider == null)
            {
                this.logger.LogInformation("No IMetricsProvider installed, no metrics available. Consider using the Package NetCoreAdmin.Metrics");
            }
        }
Пример #10
0
        public DeploymentMetrics(IMetricsProvider metricsProvider, string storageFolder, ISystemTime time = null)
        {
            this.systemTime     = time ?? SystemTime.Instance;
            this.availabilities = new List <Availability>();
            this.edgeAgent      = new Lazy <Availability>(() => new Availability(Constants.EdgeAgentModuleName, this.CalculateEdgeAgentDowntime(), this.systemTime));

            Preconditions.CheckNotNull(metricsProvider, nameof(metricsProvider));
            this.running = metricsProvider.CreateGauge(
                "total_time_running_correctly_seconds",
                "The amount of time the module was specified in the deployment and was in the running state",
                new List <string> {
                "module_name", MetricsConstants.MsTelemetry
            });

            this.expectedRunning = metricsProvider.CreateGauge(
                "total_time_expected_running_seconds",
                "The amount of time the module was specified in the deployment",
                new List <string> {
                "module_name", MetricsConstants.MsTelemetry
            });

            this.unsuccessfulSyncs = metricsProvider.CreateCounter(
                "unsuccessful_iothub_syncs",
                "The amount of times edgeAgent failed to sync with iotHub",
                new List <string> {
                MetricsConstants.MsTelemetry
            });

            this.totalSyncs = metricsProvider.CreateCounter(
                "iothub_syncs",
                "The amount of times edgeAgent attempted to sync with iotHub, both successful and unsuccessful",
                new List <string> {
                MetricsConstants.MsTelemetry
            });

            this.deploymentTime = metricsProvider.CreateHistogram(
                "deployment_time_seconds",
                "The amount of time it took to complete a new deployment",
                new List <string> {
                MetricsConstants.MsTelemetry
            });

            string storageDirectory = Path.Combine(Preconditions.CheckNonWhiteSpace(storageFolder, nameof(storageFolder)), "availability");

            try
            {
                Directory.CreateDirectory(storageDirectory);
                this.checkpointFile       = Path.Combine(storageDirectory, "avaliability.checkpoint");
                this.updateCheckpointFile = new PeriodicTask(this.UpdateCheckpointFile, this.checkpointFrequency, this.checkpointFrequency, this.log, "Checkpoint Availability", false);
            }
            catch (Exception ex)
            {
                this.log.LogError(ex, "Could not create checkpoint directory");
            }
        }
Пример #11
0
 public MetricsRegistration(
     IMetricsProvider metricsProvider,
     IConfigurationProvider configurationProvider,
     IMetricRepository metricRepository,
     IMetricMetadataFactory metadataFactory)
 {
     _metricsProvider       = metricsProvider;
     _configurationProvider = configurationProvider;
     _metricRepository      = metricRepository;
     _metadataFactory       = metadataFactory;
 }
Пример #12
0
        public static void InitWithServer(IMetricsProvider metricsProvider, IMetricsListener metricsListener, ILogger logger)
        {
            Preconditions.CheckNotNull(metricsProvider, nameof(metricsProvider));
            Preconditions.CheckNotNull(metricsListener, nameof(metricsListener));

            lock (StateLock)
            {
                Instance = metricsProvider;
                Listener = metricsListener;
                Listener.Start(logger);
            }
        }
Пример #13
0
 public OrderApiController(
     IDeadlineManager deadlineManager, IOrderManager orderManager,
     ILogProvider logProvider,
     IMetricsProvider prometheusProvider,
     IOptions <KafkaSettings> kafkaSettings)
 {
     _deadlineManager    = deadlineManager;
     _orderManager       = orderManager;
     _logProvider        = logProvider;
     _kafkaSettings      = kafkaSettings;
     _prometheusProvider = prometheusProvider;
 }
Пример #14
0
        public MetadataMetrics(IMetricsProvider metricsProvider, Func <Task <SystemInfo> > getSystemMetadata)
        {
            this.getSystemMetadata = Preconditions.CheckNotNull(getSystemMetadata, nameof(getSystemMetadata));

            Preconditions.CheckNotNull(metricsProvider, nameof(metricsProvider));
            this.metaData = metricsProvider.CreateGauge(
                "metadata",
                "General metadata about the device. The value is always 0, information is encoded in the tags.",
                new List <string> {
                "edge_agent_version", "experimental_features", "host_information", MetricsConstants.MsTelemetry
            });
        }
Пример #15
0
 public ConsumerDataflowService(
     IConfiguration config,
     ILoggerFactory logger,
     IRabbitService rabbitService,
     ISerializationProvider serializationProvider,
     ICompressionProvider compressionProvider,
     IEncryptionProvider encryptionProvider,
     IMetricsProvider metricsProvider)
 {
     _config                = config;
     _logger                = logger.CreateLogger <ConsumerDataflowService>();
     _rabbitService         = rabbitService;
     _serializationProvider = serializationProvider;
     _compressionProvider   = compressionProvider;
     _encryptionProvider    = encryptionProvider;
     _metricsProvider       = metricsProvider;
 }
Пример #16
0
        public AvailabilityMetrics(IMetricsProvider metricsProvider, ISystemTime time)
        {
            this.running = metricsProvider.CreateGauge(
                "total_time_running_correctly_seconds",
                "The amount of time the module was specified in the deployment and was in the running state",
                new List <string> {
                "module_name"
            });

            this.expectedRunning = metricsProvider.CreateGauge(
                "total_time_expected_running_seconds",
                "The amount of time the module was specified in the deployment",
                new List <string> {
                "module_name"
            });

            this.time           = time;
            this.availabilities = new List <Availability>();
            this.edgeAgent      = new Lazy <Availability>(() => new Availability("edgeAgent", this.CalculateEdgeAgentDowntime(), this.time));
        }
Пример #17
0
    public FactoryMetrics(IMetricsProvider metricsProvider)
    {
        this.commandCounters = Enum.GetValues(typeof(ModuleCommandMetric)).Cast <ModuleCommandMetric>().ToDictionary(c => c, command =>
        {
            string commandName = Enum.GetName(typeof(ModuleCommandMetric), command).ToLower();
            return(metricsProvider.CreateCounter(
                       $"module_{commandName}",
                       "Command sent to module",
                       new List <string> {
                "module_name", "module_version", MetricsConstants.MsTelemetry
            }));
        });

        this.commandTiming = metricsProvider.CreateDuration(
            $"command_latency",
            "Command sent to module",
            new List <string> {
            "command", MetricsConstants.MsTelemetry
        });
    }
 public SharedClusterWorker(
     ILogger <SharedClusterWorker> logger,
     IClusterSettings clusterSettings,
     IDescriptorProvider descriptorProvider,
     ISharedClusterProviderFactory clusterProvider,
     ISharedSetupRootActors setupRootActors   = default,
     ISubscriptionFactory subscriptionFactory = default,
     IMainWorker mainWorker           = default,
     IMetricsProvider metricsProvider = default
     )
 {
     _logger                  = logger;
     _setupRootActors         = setupRootActors;
     _clusterSettings         = clusterSettings;
     _mainWorker              = mainWorker;
     _descriptorProvider      = descriptorProvider;
     _clusterProvider         = clusterProvider;
     _subscriptionFactory     = subscriptionFactory;
     _metricsProvider         = metricsProvider;
     _cancellationTokenSource = new CancellationTokenSource();
 }
Пример #19
0
        private static void Extract(IMetricsProvider metrics, TextWriter writer, Action <ICounter, TextWriter> extractor)
        {
            var first = true;

            foreach (var counter in metrics.Counters)
            {
                if (first)
                {
                    first = false;
                }
                else
                {
                    writer.Write(',');
                }

                writer.Write('"');
                writer.Write(counter.Name);
                writer.Write("\":");

                extractor(counter, writer);
            }
        }
Пример #20
0
        private static bool StartUpService()
        {
            try
            {
                var builder = new ConfigurationBuilder()
                              .AddJsonFile(Constant.AppSettingsFile, optional: false, reloadOnChange: true);

                _configuration = builder.Build();

                _kafkaSettings = new KafkaSettings();
                _configuration.GetSection("KafkaSettings").Bind(_kafkaSettings);

                var mongoDbSettings = new MongoDbSettings();
                _configuration.GetSection("MongoDbSettings").Bind(mongoDbSettings);

                var serviceProvider = new ServiceCollection()
                                      .AddSingleton <IPubSubProvider, KafkaProvider>()
                                      .AddSingleton <IOrderServiceManager, OrderServiceManager>()
                                      .AddSingleton <ILogProvider, LogProvider>()
                                      .AddSingleton <IMetricsProvider, PrometheusProvider>()
                                      .AddSingleton <IDataProvider, MongoDBProvider>(settings =>
                                                                                     new MongoDBProvider(mongoDbSettings.Host, mongoDbSettings.Database, mongoDbSettings.OrderCollection))
                                      .Configure <KafkaSettings>(_configuration.GetSection("KafkaSettings"))
                                      .AddOptions()
                                      .BuildServiceProvider();

                _pubSubProvider      = serviceProvider.GetService <IPubSubProvider>();
                _orderServiceManager = serviceProvider.GetService <IOrderServiceManager>();
                _logProvider         = serviceProvider.GetService <ILogProvider>();
                _metricsProvider     = serviceProvider.GetService <IMetricsProvider>();
                var dbProvider = serviceProvider.GetService <IDataProvider>();

                return(true);
            }
            catch (Exception ex)
            {
                return(false);
            }
        }
Пример #21
0
 public ConsumerDataflow <TState> SetMetricsProvider(IMetricsProvider provider)
 {
     _metricsProvider = provider ?? new NullMetricsProvider();
     return(this);
 }
Пример #22
0
 public static void Flush(this IMetricsProvider metrics, TextWriter writer)
 {
     Extract(metrics, writer, (counter, textWriter) => counter.Flush(textWriter));
 }
Пример #23
0
        public ExceptionCounter(Dictionary <Type, string> recognizedExceptions, HashSet <Type> ignoredExceptions, IMetricsProvider metricsProvider)
        {
            this.recognizedExceptions = Preconditions.CheckNotNull(recognizedExceptions, nameof(recognizedExceptions));
            this.ignoredExceptions    = Preconditions.CheckNotNull(ignoredExceptions, nameof(ignoredExceptions));
            Preconditions.CheckNotNull(metricsProvider, nameof(metricsProvider));
            this.exceptions = Preconditions.CheckNotNull(metricsProvider.CreateCounter(
                                                             "exceptions_total",
                                                             "The number of exceptions thrown of the given type",
                                                             new List <string> {
                "exception_name"
            }));

            AppDomain.CurrentDomain.FirstChanceException += this.OnException;
        }
Пример #24
0
 public MetricsCommandFactory(ICommandFactory underlying, IMetricsProvider metricsProvider)
 {
     this.underlying     = Preconditions.CheckNotNull(underlying, nameof(underlying));
     this.factoryMetrics = new FactoryMetrics(metricsProvider);
 }
 public MetricsInterceptor(IMetricsProvider metricsProvider, ILogger logger)
 {
     _metricsProvider = metricsProvider;
     _logger          = logger;
 }
 public MetricsController(IMetricsProvider metricsProvider, ILogProvider logProvider)
 {
     _metricsProvider = metricsProvider;
 }
Пример #27
0
 /// <summary>
 /// Sets the <see cref="IMetricsProvider"/> to retrieve performance metrics for serialized nodes,
 /// so that performance metrics are included in the output.
 /// </summary>
 /// <param name="metricsProvider">Performance metrics provider or <c>null</c> to exclude performance metrics from the output.</param>
 public void SetMetricsProvider(IMetricsProvider metricsProvider)
 {
     _metricsProvider = metricsProvider;
 }
Пример #28
0
 public Metrics(IMetricsProvider metricsProvider)
 {
     _metricsProvider = metricsProvider ?? throw new ArgumentNullException(nameof(metricsProvider));
 }
Пример #29
0
 public Sensor(IMetricsProvider metricPovider, ITCPSender client, IOutputLog outputLog)
 {
     _client        = client;
     _metricPovider = metricPovider;
     _outputLog     = outputLog;
 }
Пример #30
0
        public SystemResourcesMetrics(IMetricsProvider metricsProvider, Func <Task <SystemResources> > getSystemResources, string apiVersion, TimeSpan updateFrequency)
        {
            Preconditions.CheckNotNull(metricsProvider, nameof(metricsProvider));
            this.getSystemResources = Preconditions.CheckNotNull(getSystemResources, nameof(getSystemResources));
            this.apiVersion         = Preconditions.CheckNotNull(apiVersion, nameof(apiVersion));
            Preconditions.CheckArgument(updateFrequency >= MaxUpdateFrequency, $"Performance metrics cannot update faster than {MaxUpdateFrequency.Humanize()}.");
            this.updateFrequency = updateFrequency;

            this.hostUptime = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                             "host_uptime_seconds",
                                                             "How long the host has been on",
                                                             new List <string> {
                MetricsConstants.MsTelemetry
            }));

            this.iotedgedUptime = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                                 "iotedged_uptime_seconds",
                                                                 "How long iotedged has been running",
                                                                 new List <string> {
                MetricsConstants.MsTelemetry
            }));

            this.usedSpace = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                            "available_disk_space_bytes",
                                                            "Amount of space left on the disk",
                                                            new List <string> {
                "disk_name", "disk_filesystem", "disk_filetype", MetricsConstants.MsTelemetry
            }));

            this.totalSpace = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                             "total_disk_space_bytes",
                                                             "Size of the disk",
                                                             new List <string> {
                "disk_name", "disk_filesystem", "disk_filetype", MetricsConstants.MsTelemetry
            }));

            this.usedMemory = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                             "used_memory_bytes",
                                                             "Amount of RAM used by all processes",
                                                             new List <string> {
                "module", MetricsConstants.MsTelemetry
            }));

            this.totalMemory = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                              "total_memory_bytes",
                                                              "RAM available",
                                                              new List <string> {
                "module", MetricsConstants.MsTelemetry
            }));

            this.cpuPercentage = Preconditions.CheckNotNull(metricsProvider.CreateHistogram(
                                                                "used_cpu_percent",
                                                                "Percent of cpu used by all processes",
                                                                new List <string> {
                "module", MetricsConstants.MsTelemetry
            }));

            this.createdPids = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                              "created_pids_total",
                                                              "The number of processes or threads the container has created",
                                                              new List <string> {
                "module", MetricsConstants.MsTelemetry
            }));

            this.networkIn = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                            "total_network_in_bytes",
                                                            "The amount of bytes recieved from the network",
                                                            new List <string> {
                "module", MetricsConstants.MsTelemetry
            }));

            this.networkOut = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                             "total_network_out_bytes",
                                                             "The amount of bytes sent to network",
                                                             new List <string> {
                "module", MetricsConstants.MsTelemetry
            }));

            this.diskRead = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                           "total_disk_read_bytes",
                                                           "The amount of bytes read from the disk",
                                                           new List <string> {
                "module", MetricsConstants.MsTelemetry
            }));

            this.diskWrite = Preconditions.CheckNotNull(metricsProvider.CreateGauge(
                                                            "total_disk_write_bytes",
                                                            "The amount of bytes written to disk",
                                                            new List <string> {
                "module", MetricsConstants.MsTelemetry
            }));
        }
Пример #31
0
        public bool Start()
        {
            Startup();
            m_log.Info("[ASSETINVENTORY]: Starting AssetInventory Server");

            try
            {
                ConfigFile = AssetInventoryConfig.LoadConfig(ConfigFile);
            }
            catch (Exception)
            {
                m_log.Error("[ASSETINVENTORY]: Failed to load the config.");
                return false;
            }

            StorageProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AssetStorageProvider",
                                                             "asset_storage_provider", false) as IAssetStorageProvider;
            m_backends.Add(StorageProvider);

            InventoryProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/InventoryStorageProvider",
                                                               "inventory_storage_provider", false) as IInventoryStorageProvider;
            m_backends.Add(InventoryProvider);

            MetricsProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/MetricsProvider",
                                                             "metrics_provider", false) as IMetricsProvider;
            m_backends.Add(MetricsProvider);

            try
            {
                InitHttpServer((uint) ConfigFile.Configs["Config"].GetInt("listen_port"));
            }
            catch (Exception ex)
            {
                m_log.Error("[ASSETINVENTORY]: Initializing the HTTP server failed, shutting down: " + ex.Message);
                Shutdown();
                return false;
            }

            LoadDefaultAssets(); 

            AuthenticationProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AuthenticationProvider",
                                                                    "authentication_provider", false) as IAuthenticationProvider;
            m_backends.Add(AuthenticationProvider);

            AuthorizationProvider = LoadAssetInventoryServerPlugin("/OpenSim/AssetInventoryServer/AuthorizationProvider",
                                                                   "authorization_provider", false) as IAuthorizationProvider;
            m_backends.Add(AuthorizationProvider);

            m_frontends.AddRange(LoadAssetInventoryServerPlugins("/OpenSim/AssetInventoryServer/Frontend", "frontends"));

            // Inform the user if we don't have any frontends at this point.
            if (m_frontends.Count == 0)
                m_log.Info("[ASSETINVENTORY]: Starting with no frontends loaded, which isn't extremely useful. Did you set the 'frontends' configuration parameter?");

            return true;
        }