// this class is auto-registered so no way to implement an async activator.
// hence this one needs to get a Task<T> which is suboptimal, but that is the way
// IConnectionProvider is registered
public ConnectionHandler(Task <IConnectionProvider> connectionProviderGetter, IIdentityProvider identityProvider, ISystemComponentIdProvider systemComponentIdProvider, DeviceProxy.Factory deviceProxyFactory)
{
this.connectionProviderGetter = Preconditions.CheckNotNull(connectionProviderGetter);
this.identityProvider = Preconditions.CheckNotNull(identityProvider);
this.systemComponentIdProvider = Preconditions.CheckNotNull(systemComponentIdProvider);
this.deviceProxyFactory = Preconditions.CheckNotNull(deviceProxyFactory);
}
public async Task CloseSendsDisconnectSignal()
{
var connectionProvider = Mock.Of <IConnectionProvider>();
Mock.Get(connectionProvider)
.Setup(p => p.GetDeviceListenerAsync(
It.IsAny <Identity>(),
It.IsAny <Option <string> >()))
.Returns(Task.FromResult(Mock.Of <IDeviceListener>()));
var authenticator = Mock.Of <IAuthenticator>();
Mock.Get(authenticator)
.Setup(p => p.AuthenticateAsync(It.IsAny <IClientCredentials>()))
.Returns(Task.FromResult(true));
var connectionProviderGetter = Task.FromResult(connectionProvider);
var authenticatorGetter = Task.FromResult(authenticator);
var identityProvider = new IdentityProvider("hub");
var systemComponentIdProvider = new SystemComponentIdProvider(
new TokenCredentials(
new ModuleIdentity("hub", "device1", "$edgeHub"), "token", "prodinfo", Option.Some("x"), Option.None <string>(), false));
var identity = identityProvider.Create("device_test");
var brokerConnector = Mock.Of <IMqttBrokerConnector>();
Mock.Get(brokerConnector)
.Setup(p => p.SendAsync(It.IsAny <string>(), It.IsAny <byte[]>()))
.Returns(() => Task.FromResult(true));
var sut = default(ConnectionHandler);
DeviceProxy.Factory deviceProxyFactory = GetProxy;
sut = new ConnectionHandler(connectionProviderGetter, authenticatorGetter, identityProvider, systemComponentIdProvider, deviceProxyFactory);
sut.SetConnector(brokerConnector);
await sut.HandleAsync(new MqttPublishInfo("$edgehub/connected", Encoding.UTF8.GetBytes("[\"device_test\"]")));
await sut.CloseConnectionAsync(identity);
Mock.Get(brokerConnector).Verify(
c => c.SendAsync(
It.Is <string>(topic => topic.Equals("$edgehub/disconnect")),
It.Is <byte[]>(payload => Encoding.UTF8.GetString(payload).Equals($"\"device_test\""))),
Times.Once);
DeviceProxy GetProxy(IIdentity identity, bool isDirectClient = true)
{
return(new DeviceProxy(
identity,
isDirectClient,
sut,
Mock.Of <ITwinHandler>(),
Mock.Of <IModuleToModuleMessageHandler>(),
Mock.Of <ICloud2DeviceMessageHandler>(),
Mock.Of <IDirectMethodHandler>()));
}
}
public async Task ReconnectAsDirectRemovesNestedInstance()
{
var connectionManager = Mock.Of <IConnectionManager>();
Mock.Get(connectionManager)
.Setup(p => p.RemoveDeviceConnection(It.IsAny <string>()))
.Returns(() => Task.CompletedTask);
var edgeHub = Mock.Of <IEdgeHub>();
var connectionProvider = new ConnectionProvider(connectionManager, edgeHub, TimeSpan.FromSeconds(30)) as IConnectionProvider;
var authenticator = Mock.Of <IAuthenticator>();
Mock.Get(authenticator)
.Setup(p => p.AuthenticateAsync(It.IsAny <IClientCredentials>()))
.Returns(Task.FromResult(true));
var connectionProviderGetter = Task.FromResult(connectionProvider);
var authenticatorGetter = Task.FromResult(authenticator);
var identityProvider = new IdentityProvider("hub");
var systemComponentIdProvider = new SystemComponentIdProvider(
new TokenCredentials(
new ModuleIdentity("hub", "device1", "$edgeHub"), "token", "prodinfo", Option.Some("x"), Option.None <string>(), false));
var brokerConnector = Mock.Of <IMqttBrokerConnector>();
Mock.Get(brokerConnector)
.Setup(p => p.SendAsync(It.IsAny <string>(), It.IsAny <byte[]>(), It.IsAny <bool>()))
.Returns(() => Task.FromResult(true));
var sut = default(ConnectionHandler);
DeviceProxy.Factory deviceProxyFactory = GetProxy;
sut = new ConnectionHandler(connectionProviderGetter, authenticatorGetter, identityProvider, systemComponentIdProvider, deviceProxyFactory);
sut.SetConnector(brokerConnector);
await sut.GetOrCreateDeviceListenerAsync(new ModuleIdentity("hub", "device1", "direct_module"), true);
await sut.GetOrCreateDeviceListenerAsync(new ModuleIdentity("hub", "device1", "indirect_module"), false);
await sut.GetOrCreateDeviceListenerAsync(new ModuleIdentity("hub", "device1", "$edgeHub"), false);
await sut.GetOrCreateDeviceListenerAsync(new ModuleIdentity("hub", "device1", "indirect_reconnecting"), false);
// after indirect_reconnecting comes back as direct, the broker would send 3 connected clients: [direct_module, $edgeHub, indirect_reconnecting]
// $edgeHub is indirect but listed, yet it should not be bothered as it is a special case.
// indirect_module is not listed, but as indirect, it should not be removed
// direct_module should keep its state
// indirect_reconnecting should be recreated as direct
await sut.HandleAsync(new MqttPublishInfo("$edgehub/connected", Encoding.UTF8.GetBytes("[\"device1/direct_module\", \"device1/$edgeHub\", \"device1/indirect_reconnecting\"]")));
var knownConnections = sut.AsPrivateAccessible().knownConnections as ConcurrentDictionary <IIdentity, IDeviceListener>;
Assert.Equal(4, knownConnections.Count());
Assert.True(HasModule(knownConnections, "direct_module", true));
Assert.True(HasModule(knownConnections, "indirect_module", false));
Assert.True(HasModule(knownConnections, "$edgeHub", false));
Assert.True(HasModule(knownConnections, "indirect_reconnecting", true));
bool HasModule(ConcurrentDictionary <IIdentity, IDeviceListener> knownConnections, string name, bool isDirect)
{
return(knownConnections.Values.OfType <IDeviceProxy>().Any(p => p.IsDirectClient == isDirect && p.Identity is ModuleIdentity i && string.Equals(i.ModuleId, name)));
}
DeviceProxy GetProxy(IIdentity identity, bool isDirectClient = true)
{
return(new DeviceProxy(
identity,
isDirectClient,
sut,
Mock.Of <ITwinHandler>(),
Mock.Of <IModuleToModuleMessageHandler>(),
Mock.Of <ICloud2DeviceMessageHandler>(),
Mock.Of <IDirectMethodHandler>()));
}
}
