public static void Initialize(WorkshopManagementDBContext context)
{
Log.Information("Ensure WorkshopManagement Database");
Policy
.Handle <Exception>()
.WaitAndRetry(5, r => TimeSpan.FromSeconds(5), (ex, ts) => { Log.Error("Error connecting to DB. Retrying in 5 sec."); })
.Execute(() => context.Database.Migrate());
Log.Information("WorkshopManagement Database available");
}
private static IHostBuilder CreateHostBuilder(string[] args)
{
var hostBuilder = new HostBuilder()
.ConfigureHostConfiguration(configHost =>
{
configHost.SetBasePath(Directory.GetCurrentDirectory());
configHost.AddJsonFile("hostsettings.json", optional: true);
configHost.AddJsonFile($"appsettings.json", optional: false);
configHost.AddEnvironmentVariables();
configHost.AddEnvironmentVariables("DOTNET_");
configHost.AddCommandLine(args);
})
.ConfigureAppConfiguration((hostContext, config) =>
{
config.AddJsonFile($"appsettings.{hostContext.HostingEnvironment.EnvironmentName}.json", optional: false);
})
.ConfigureServices((hostContext, services) =>
{
services.AddTransient <IMessageHandler>((svc) =>
{
var rabbitMQConfigSection = hostContext.Configuration.GetSection("RabbitMQ");
string rabbitMQHost = rabbitMQConfigSection["Host"];
string rabbitMQUserName = rabbitMQConfigSection["UserName"];
string rabbitMQPassword = rabbitMQConfigSection["Password"];
return(new RabbitMQMessageHandler(rabbitMQHost, rabbitMQUserName, rabbitMQPassword, "Pitstop", "WorkshopManagement", ""));;
});
services.AddTransient <WorkshopManagementDBContext>((svc) =>
{
var sqlConnectionString = hostContext.Configuration.GetConnectionString("WorkshopManagementCN");
var dbContextOptions = new DbContextOptionsBuilder <WorkshopManagementDBContext>()
.UseSqlServer(sqlConnectionString)
.Options;
var dbContext = new WorkshopManagementDBContext(dbContextOptions);
Policy
.Handle <Exception>()
.WaitAndRetry(5, r => TimeSpan.FromSeconds(5), (ex, ts) => { Log.Error("Error connecting to DB. Retrying in 5 sec."); })
.Execute(() => DBInitializer.Initialize(dbContext));
return(dbContext);
});
services.AddHostedService <EventHandler>();
})
.UseSerilog((hostContext, loggerConfiguration) =>
{
loggerConfiguration.ReadFrom.Configuration(hostContext.Configuration);
})
.UseConsoleLifetime();
return(hostBuilder);
}
/// <summary>
/// This is the entry point of the service host process.
/// </summary>
private static void Main()
{
try
{
// The ServiceManifest.XML file defines one or more service type names.
// Registering a service maps a service type name to a .NET type.
// When Service Fabric creates an instance of this service type,
// an instance of the class is created in this host process.
ServiceRuntime.RegisterServiceAsync("WorkshopManagementEventHandlerType",
context => new WorkshopManagementEventHandler(context)).GetAwaiter().GetResult();
ServiceEventSource.Current.ServiceTypeRegistered(Process.GetCurrentProcess().Id, typeof(WorkshopManagementEventHandler).Name);
// get configuration
var rabbitMQConfigSection = Config.GetSection("RabbitMQ");
string host = rabbitMQConfigSection["Host"];
string userName = rabbitMQConfigSection["UserName"];
string password = rabbitMQConfigSection["Password"];
// setup messagehandler
RabbitMQMessageHandler messageHandler = new RabbitMQMessageHandler(host, userName, password, "Pitstop", "WorkshopManagement", "");
// setup DBContext
var sqlConnectionString = Config.GetConnectionString("WorkshopManagementCN");
var dbContextOptions = new DbContextOptionsBuilder <WorkshopManagementDBContext>()
.UseSqlServer(sqlConnectionString)
.Options;
var dbContext = new WorkshopManagementDBContext(dbContextOptions);
Policy
.Handle <Exception>()
.WaitAndRetry(5, r => TimeSpan.FromSeconds(5), (ex, ts) => { Console.WriteLine("Error connecting to DB. Retrying in 5 sec."); })
.Execute(() => DBInitializer.Initialize(dbContext));
// start event-handler
EventHandler eventHandler = new EventHandler(messageHandler, dbContext);
eventHandler.Start();
// Prevents this host process from terminating so services keep running.
Thread.Sleep(Timeout.Infinite);
}
catch (Exception e)
{
ServiceEventSource.Current.ServiceHostInitializationFailed(e.ToString());
throw;
}
}
private static IHostBuilder CreateHostBuilder(string[] args)
{
var hostBuilder = Host.CreateDefaultBuilder(args)
.ConfigureHostConfiguration(configHost =>
{
configHost.SetBasePath(Directory.GetCurrentDirectory());
configHost.AddJsonFile("hostsettings.json", optional: true);
configHost.AddJsonFile($"appsettings.json", optional: false);
configHost.AddEnvironmentVariables();
configHost.AddEnvironmentVariables("DOTNET_");
configHost.AddCommandLine(args);
})
.ConfigureAppConfiguration((hostContext, config) =>
{
config.AddJsonFile($"appsettings.{hostContext.HostingEnvironment.EnvironmentName}.json", optional: false);
config.AddEnvironmentVariables();
})
.ConfigureServices((hostContext, services) =>
{
services.UseRabbitMQMessageHandler(hostContext.Configuration);
services.AddTransient <WorkshopManagementDBContext>((svc) =>
{
var sqlConnectionString = hostContext.Configuration.GetConnectionString("WorkshopManagementCN");
var dbContextOptions = new DbContextOptionsBuilder <WorkshopManagementDBContext>()
.UseSqlServer(sqlConnectionString)
.Options;
var dbContext = new WorkshopManagementDBContext(dbContextOptions);
DBInitializer.Initialize(dbContext);
return(dbContext);
});
services.AddHostedService <EventHandler>();
})
.UseSerilog((hostContext, loggerConfiguration) =>
{
loggerConfiguration.ReadFrom.Configuration(hostContext.Configuration);
})
.UseConsoleLifetime();
return(hostBuilder);
}
private static void Startup()
{
// setup RabbitMQ
var configSection = Config.GetSection("RabbitMQ");
string host = configSection["Host"];
string userName = configSection["UserName"];
string password = configSection["Password"];
// setup messagehandler
RabbitMQMessageHandler messageHandler = new RabbitMQMessageHandler(host, userName, password, "Pitstop", "WorkshopManagement", "");
// setup DBContext
var sqlConnectionString = Config.GetConnectionString("WorkshopManagementCN");
var dbContextOptions = new DbContextOptionsBuilder <WorkshopManagementDBContext>()
.UseSqlServer(sqlConnectionString)
.Options;
var dbContext = new WorkshopManagementDBContext(dbContextOptions);
Policy
.Handle <Exception>()
.WaitAndRetry(5, r => TimeSpan.FromSeconds(5), (ex, ts) => { Log.Error("Error connecting to DB. Retrying in 5 sec."); })
.Execute(() => DBInitializer.Initialize(dbContext));
// start event-handler
EventHandler eventHandler = new EventHandler(messageHandler, dbContext);
eventHandler.Start();
if (_env == "Development")
{
Log.Information("WorkshopManagement Eventhandler started.");
Console.WriteLine("Press any key to stop...");
Console.ReadKey(true);
eventHandler.Stop();
}
else
{
Log.Information("WorkshopManagement Eventhandler started.");
while (true)
{
Thread.Sleep(10000);
}
}
}
public EventHandler(IMessageHandler messageHandler, WorkshopManagementDBContext dbContext)
{
_messageHandler = messageHandler;
_dbContext = dbContext;
}
