public ServerInfo InsertOrUpdate(ServerRegistration registration)
{
var currentTime = DateTimeOffset.Now;
ServerInfo host;
lock (this.serverTable)
{
if (!this.serverTable.TryGetValue(registration.Hostname, out host))
{
Events.Write.AddedRemoteHost(registration.Hostname, registration.Port);
host = new ServerInfo(registration);
this.serverTable[registration.Hostname] = host;
host.LatestCounterTimeUpdated +=
(server, counterName, timestamp) =>
{
if (this.LatestCounterTimeUpdated != null)
{
this.LatestCounterTimeUpdated(server, counterName, timestamp);
}
};
}
}
host.LastUpdateTime = currentTime;
return(host);
}
/// <summary>
/// Called to 'call home' to ensure the current server has an active record
/// </summary>
/// <param name="address"></param>
public void EnsureActive(string address)
{
var uow = _uowProvider.GetUnitOfWork();
using (var repo = _repositoryFactory.CreateServerRegistrationRepository(uow))
{
//NOTE: we cannot use Environment.MachineName as this does not work in medium trust
// found this out in CDF a while back: http://clientdependency.codeplex.com/workitem/13191
var computerName = System.Net.Dns.GetHostName();
var query = Query <ServerRegistration> .Builder.Where(x => x.ComputerName.ToUpper() == computerName.ToUpper());
var found = repo.GetByQuery(query).ToArray();
ServerRegistration server;
if (found.Any())
{
server = found.First();
server.ServerAddress = address; //This should not really change but it might!
server.UpdateDate = DateTime.UtcNow; //Stick with Utc dates since these might be globally distributed
server.IsActive = true;
}
else
{
server = new ServerRegistration(address, computerName, DateTime.UtcNow);
}
repo.AddOrUpdate(server);
uow.Commit();
}
}
public async Task StartExecuteReturnsOkAndAddsHandlerIfPayloadIsValid()
{
var message = new ServerRegistration
{
Hostname = "testServer",
Port = 867,
};
ByteArrayContent payload;
using (var ms = new MemoryStream())
using (var writerStream = new WriterStream(ms))
{
writerStream.CreateCompactBinaryWriter().Write(message);
payload = new ByteArrayContent(ms.GetBuffer());
}
var response = await
this.httpClient.PostAsync(TestUtils.GetUri(this.server,
RegistrationClient.RegistrationEndpoint,
string.Empty),
payload);
Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
Assert.IsNotNull(this.server.ServerList["testServer"]);
}
public static ServerRegistration BuildEntity(ServerRegistrationDto dto)
{
var model = new ServerRegistration(dto.Id, dto.ServerAddress, dto.ServerIdentity, dto.DateRegistered, dto.DateAccessed, dto.IsActive, dto.IsSchedulingPublisher);
// reset dirty initial properties (U4-1946)
model.ResetDirtyProperties(false);
return(model);
}
private async void StartRegistration()
{
IPAddress[] addresses;
try
{
addresses =
await Task <IPAddress[]> .Factory.FromAsync(Dns.BeginGetHostAddresses, Dns.EndGetHostAddresses,
this.destinationHostname, null);
}
catch (SocketException e)
{
Events.Write.RegistrationDestinationResolutionFailed(this.destinationHostname, e.Message);
return;
}
var serverRegistration = new ServerRegistration
{
Hostname = this.sourceHostname,
Port = this.sourcePort,
MachineFunction = this.sourceMachineFunction,
Datacenter = this.sourceDatacenter,
};
foreach (var counter in this.dataManager.Counters)
{
serverRegistration.Counters.Add(
new CounterInfo
{
Name = counter.Name,
Type = counter.Type,
Dimensions = counter.Dimensions.ToList(),
StartTime = counter.StartTime.ToMillisecondTimestamp(),
EndTime = counter.EndTime.ToMillisecondTimestamp(),
});
}
byte[] payload;
using (var ms = new MemoryStream())
using (var writerStream = new WriterStream(ms, this.dataManager.MemoryStreamManager))
{
var writer = writerStream.CreateCompactBinaryWriter();
writer.Write(serverRegistration);
payload = ms.ToArray();
}
foreach (var address in addresses)
{
this.RegisterWithAddress(address, payload);
}
lock (this)
{
if (this.registrationTimer != null)
{
this.registrationTimer.Change(this.registrationInterval, TimeSpan.Zero);
}
}
}
public ServerRegistration BuildEntity(ServerRegistrationDto dto)
{
var model = new ServerRegistration(dto.Id, dto.ServerAddress, dto.ServerIdentity, dto.DateRegistered, dto.DateAccessed, dto.IsActive, dto.IsMaster);
//on initial construction we don't want to have dirty properties tracked
// http://issues.umbraco.org/issue/U4-1946
model.ResetDirtyProperties(false);
return(model);
}
public void Cannot_Add_Duplicate_Server_Identities()
{
// Arrange
IScopeProvider provider = ScopeProvider;
using (provider.CreateScope())
{
ServerRegistrationRepository repository = CreateRepository(provider);
var server = new ServerRegistration("http://shazwazza.com", "COMPUTER1", DateTime.Now);
Assert.That(() => repository.Save(server), Throws.InstanceOf <DbException>());
}
}
public void Cannot_Add_Duplicate_Server_Identities()
{
// Arrange
var provider = TestObjects.GetScopeProvider(Logger);
using (var scope = ScopeProvider.CreateScope())
{
var repository = CreateRepository(provider);
var server = new ServerRegistration("http://shazwazza.com", "COMPUTER1", DateTime.Now);
Assert.Throws <SqlCeException>(() => repository.Save(server));
}
}
public void ProcessRegistrationMessage(ServerRegistration message)
{
// These can change over time so go ahead and update.
this.Port = message.Port;
this.MachineFunction = message.MachineFunction;
this.Datacenter = message.Datacenter;
foreach (var counter in message.Counters)
{
var updated = false;
var endTime = counter.EndTime.ToDateTimeOffset();
if (endTime == DateTimeOffset.MinValue)
{
continue;
}
this.CounterInfo.AddOrUpdate(counter,
info =>
{
updated = true;
return(endTime);
},
(info, current) =>
{
if (endTime > current)
{
updated = true;
return(endTime);
}
if (endTime < current)
{
Events.Write.ServerLatestDataNowEarlier(this.Hostname, info.Name,
current.ToString("o"),
endTime.ToString("o"));
}
return(current);
});
if (updated)
{
if (this.LatestCounterTimeUpdated != null)
{
this.LatestCounterTimeUpdated(this, counter.Name, endTime);
}
Events.Write.ServerLatestDataUpdated(this.Hostname, counter.Name, endTime);
}
}
}
public void ProcessRegistrationMessage(ServerRegistration message)
{
// These can change over time so go ahead and update.
this.Port = message.Port;
this.MachineFunction = message.MachineFunction;
this.Datacenter = message.Datacenter;
foreach (var counter in message.Counters)
{
var updated = false;
var endTime = counter.EndTime.ToDateTimeOffset();
if (endTime == DateTimeOffset.MinValue)
{
continue;
}
this.CounterInfo.AddOrUpdate(counter,
info =>
{
updated = true;
return endTime;
},
(info, current) =>
{
if (endTime > current)
{
updated = true;
return endTime;
}
if (endTime < current)
{
Events.Write.ServerLatestDataNowEarlier(this.Hostname, info.Name,
current.ToString("o"),
endTime.ToString("o"));
}
return current;
});
if (updated)
{
if (this.LatestCounterTimeUpdated != null)
{
this.LatestCounterTimeUpdated(this, counter.Name, endTime);
}
Events.Write.ServerLatestDataUpdated(this.Hostname, counter.Name, endTime);
}
}
}
public void Cannot_Add_Duplicate_Computer_Names()
{
// Arrange
var provider = new PetaPocoUnitOfWorkProvider();
var unitOfWork = provider.GetUnitOfWork();
// Act
using (var repository = new ServerRegistrationRepository(unitOfWork))
{
var server = new ServerRegistration("http://shazwazza.com", "COMPUTER1", DateTime.Now);
repository.AddOrUpdate(server);
Assert.Throws <SqlCeException>(unitOfWork.Commit);
}
}
/// <summary>
/// Touches a server to mark it as active; deactivate stale servers.
/// </summary>
/// <param name="serverAddress">The server url.</param>
/// <param name="serverIdentity">The server unique identity.</param>
/// <param name="staleTimeout">The time after which a server is considered stale.</param>
public void TouchServer(string serverAddress, string serverIdentity, TimeSpan staleTimeout)
{
using (var scope = ScopeProvider.CreateScope())
{
scope.WriteLock(Constants.Locks.Servers);
((ServerRegistrationRepository)_serverRegistrationRepository).ClearCache(); // ensure we have up-to-date cache
var regs = _serverRegistrationRepository.GetMany().ToArray();
var hasMaster = regs.Any(x => ((ServerRegistration)x).IsMaster);
var server = regs.FirstOrDefault(x => x.ServerIdentity.InvariantEquals(serverIdentity));
if (server == null)
{
server = new ServerRegistration(serverAddress, serverIdentity, DateTime.Now);
}
else
{
server.ServerAddress = serverAddress; // should not really change but it might!
server.UpdateDate = DateTime.Now;
}
server.IsActive = true;
if (hasMaster == false)
{
server.IsMaster = true;
}
_serverRegistrationRepository.Save(server);
_serverRegistrationRepository.DeactiveStaleServers(staleTimeout); // triggers a cache reload
// reload - cheap, cached
// reload - cheap, cached
// default role is single server, but if registrations contain more
// than one active server, then role is master or replica
regs = _serverRegistrationRepository.GetMany().ToArray();
// default role is single server, but if registrations contain more
// than one active server, then role is master or replica
_currentServerRole = regs.Count(x => x.IsActive) > 1
? (server.IsMaster ? ServerRole.Master : ServerRole.Replica)
: ServerRole.Single;
scope.Complete();
}
}
/// <summary>
/// Touches a server to mark it as active; deactivate stale servers.
/// </summary>
/// <param name="serverAddress">The server URL.</param>
/// <param name="staleTimeout">The time after which a server is considered stale.</param>
public void TouchServer(string serverAddress, TimeSpan staleTimeout)
{
var serverIdentity = GetCurrentServerIdentity();
using (ICoreScope scope = ScopeProvider.CreateCoreScope())
{
scope.WriteLock(Constants.Locks.Servers);
_serverRegistrationRepository.ClearCache(); // ensure we have up-to-date cache
IServerRegistration[]? regs = _serverRegistrationRepository.GetMany()?.ToArray();
var hasSchedulingPublisher = regs?.Any(x => ((ServerRegistration)x).IsSchedulingPublisher);
IServerRegistration?server =
regs?.FirstOrDefault(x => x.ServerIdentity?.InvariantEquals(serverIdentity) ?? false);
if (server == null)
{
server = new ServerRegistration(serverAddress, serverIdentity, DateTime.Now);
}
else
{
server.ServerAddress = serverAddress; // should not really change but it might!
server.UpdateDate = DateTime.Now;
}
server.IsActive = true;
if (hasSchedulingPublisher == false)
{
server.IsSchedulingPublisher = true;
}
_serverRegistrationRepository.Save(server);
_serverRegistrationRepository.DeactiveStaleServers(staleTimeout); // triggers a cache reload
// reload - cheap, cached
regs = _serverRegistrationRepository.GetMany().ToArray();
// default role is single server, but if registrations contain more
// than one active server, then role is scheduling publisher or subscriber
_currentServerRole = regs.Count(x => x.IsActive) > 1
? server.IsSchedulingPublisher ? ServerRole.SchedulingPublisher : ServerRole.Subscriber
: ServerRole.Single;
scope.Complete();
}
}
public void NoOuterScopeJustWorks()
{
var uowProvider = new PetaPocoUnitOfWorkProvider(Logger);
var sqlSyntax = ApplicationContext.DatabaseContext.SqlSyntax;
var lrepo = new LockingRepository <IServerRegistrationRepository>(uowProvider,
x => CreateRepository(x, Logger, CacheHelper, sqlSyntax),
new[] { Constants.Locks.Servers }, new[] { Constants.Locks.Servers });
IServerRegistration reg = null;
lrepo.WithWriteLocked(xrepo =>
{
xrepo.Repository.AddOrUpdate(reg = new ServerRegistration("a1234", "i1234", DateTime.Now));
// no need - autocommit by default
//xrepo.UnitOfWork.Commit();
});
Assert.IsNull(((ScopeProvider)ApplicationContext.ScopeProvider).AmbientScope);
Assert.AreNotEqual(0, reg.Id);
// that's cheating somehow because it will not really hit the DB because of the cache
var reg2 = lrepo.WithReadLocked(xrepo =>
{
return(xrepo.Repository.Get(reg.Id));
});
Assert.IsNull(((ScopeProvider)ApplicationContext.ScopeProvider).AmbientScope);
Assert.IsNotNull(reg2);
Assert.AreEqual("a1234", reg2.ServerAddress);
Assert.AreEqual("i1234", reg2.ServerIdentity);
// this really makes sure there's something in database
using (var scope = ApplicationContext.ScopeProvider.CreateScope())
{
var reg3 = scope.Database.Fetch <dynamic>("SELECT * FROM umbracoServer WHERE id=@id", new { id = reg2.Id }).FirstOrDefault();
Assert.IsNotNull(reg3);
Assert.AreEqual("a1234", reg3.address);
Assert.AreEqual("i1234", reg3.computerName);
}
Assert.IsNull(((ScopeProvider)ApplicationContext.ScopeProvider).AmbientScope);
}
public void Can_Perform_Add_On_Repository()
{
// Arrange
var provider = new PetaPocoUnitOfWorkProvider();
var unitOfWork = provider.GetUnitOfWork();
using (var repository = new ServerRegistrationRepository(unitOfWork))
{
// Act
var server = new ServerRegistration("http://shazwazza.com", "COMPUTER4", DateTime.Now);
repository.AddOrUpdate(server);
unitOfWork.Commit();
// Assert
Assert.That(server.HasIdentity, Is.True);
Assert.That(server.Id, Is.EqualTo(4));//With 3 existing entries the Id should be 4
}
}
public ServerInfo(ServerRegistration registration)
{
if (string.IsNullOrEmpty(registration.Hostname))
{
throw new ArgumentException("No hostname provided.", "registration.Hostname");
}
if (registration.Port == 0)
{
throw new ArgumentOutOfRangeException("registration.Port");
}
this.Hostname = registration.Hostname;
this.Port = registration.Port;
this.MachineFunction = registration.MachineFunction;
this.Datacenter = registration.Datacenter;
this.lastUpdateTime = DateTimeOffset.MinValue;
this.CounterInfo = new ConcurrentDictionary<CounterInfo, DateTimeOffset>();
}
public void Can_Perform_Add_On_Repository()
{
// Arrange
IScopeProvider provider = ScopeProvider;
using (provider.CreateScope())
{
ServerRegistrationRepository repository = CreateRepository(provider);
// Act
var server = new ServerRegistration("http://shazwazza.com", "COMPUTER4", DateTime.Now);
repository.Save(server);
// Assert
Assert.That(server.HasIdentity, Is.True);
Assert.That(server.Id, Is.EqualTo(4)); // With 3 existing entries the Id should be 4
}
}
public ServerInfo(ServerRegistration registration)
{
if (string.IsNullOrEmpty(registration.Hostname))
{
throw new ArgumentException("No hostname provided.", "registration.Hostname");
}
if (registration.Port == 0)
{
throw new ArgumentOutOfRangeException("registration.Port");
}
this.Hostname = registration.Hostname;
this.Port = registration.Port;
this.MachineFunction = registration.MachineFunction;
this.Datacenter = registration.Datacenter;
this.lastUpdateTime = DateTimeOffset.MinValue;
this.CounterInfo = new ConcurrentDictionary <CounterInfo, DateTimeOffset>();
}
/// <summary>
/// Touches a server to mark it as active; deactivate stale servers.
/// </summary>
/// <param name="serverAddress">The server url.</param>
/// <param name="serverIdentity">The server unique identity.</param>
/// <param name="staleTimeout">The time after which a server is considered stale.</param>
public void TouchServer(string serverAddress, string serverIdentity, TimeSpan staleTimeout)
{
_lrepo.WithWriteLocked(xr =>
{
((ServerRegistrationRepository)xr.Repository).ReloadCache(); // ensure we have up-to-date cache
var regs = xr.Repository.GetAll().ToArray();
var hasMaster = regs.Any(x => ((ServerRegistration)x).IsMaster);
var server = regs.FirstOrDefault(x => x.ServerIdentity.InvariantEquals(serverIdentity));
if (server == null)
{
server = new ServerRegistration(serverAddress, serverIdentity, DateTime.Now);
}
else
{
server.ServerAddress = serverAddress; // should not really change but it might!
server.UpdateDate = DateTime.Now;
}
server.IsActive = true;
if (hasMaster == false)
{
server.IsMaster = true;
}
xr.Repository.AddOrUpdate(server);
xr.UnitOfWork.Commit(); // triggers a cache reload
xr.Repository.DeactiveStaleServers(staleTimeout); // triggers a cache reload
// reload - cheap, cached
regs = xr.Repository.GetAll().ToArray();
// default role is single server, but if registrations contain more
// than one active server, then role is master or replica
_currentServerRole = regs.Count(x => x.IsActive) > 1
? (server.IsMaster ? ServerRole.Master : ServerRole.Slave)
: ServerRole.Single;
});
}
public async Task StartExecuteReturnsOkAndAddsHandlerIfPayloadIsValid()
{
var message = new ServerRegistration
{
Hostname = "testServer",
Port = 867,
};
ByteArrayContent payload;
using (var ms = new MemoryStream())
using (var writerStream = new WriterStream(ms))
{
writerStream.CreateCompactBinaryWriter().Write(message);
payload = new ByteArrayContent(ms.GetBuffer());
}
var response = await
this.httpClient.PostAsync(TestUtils.GetUri(this.server,
RegistrationClient.RegistrationEndpoint,
string.Empty),
payload);
Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
Assert.IsNotNull(this.server.ServerList["testServer"]);
}
private async void StartRegistration()
{
IPAddress[] addresses;
try
{
addresses =
await Task<IPAddress[]>.Factory.FromAsync(Dns.BeginGetHostAddresses, Dns.EndGetHostAddresses,
this.destinationHostname, null);
}
catch (SocketException e)
{
Events.Write.RegistrationDestinationResolutionFailed(this.destinationHostname, e.Message);
return;
}
var serverRegistration = new ServerRegistration
{
Hostname = this.sourceHostname,
Port = this.sourcePort,
MachineFunction = this.sourceMachineFunction,
Datacenter = this.sourceDatacenter,
};
foreach (var counter in this.dataManager.Counters)
{
serverRegistration.Counters.Add(
new CounterInfo
{
Name = counter.Name,
Type = counter.Type,
Dimensions = counter.Dimensions.ToList(),
StartTime = counter.StartTime.ToMillisecondTimestamp(),
EndTime = counter.EndTime.ToMillisecondTimestamp(),
});
}
byte[] payload;
using (var ms = new MemoryStream())
using (var writerStream = new WriterStream(ms, this.dataManager.MemoryStreamManager))
{
var writer = writerStream.CreateCompactBinaryWriter();
writer.Write(serverRegistration);
payload = ms.ToArray();
}
foreach (var address in addresses)
{
this.RegisterWithAddress(address, payload);
}
lock (this)
{
if (this.registrationTimer != null)
{
this.registrationTimer.Change(this.registrationInterval, TimeSpan.Zero);
}
}
}
public void LoadServerPlugins()
{
LoadGlobalPlugins();
ServerRegistration.GetInstance();
}
