public virtual TopicStore UpdateTopicStore(TopicStore entity)
{
if (entity.IsTransient())
{
return(entity);
}
TopicStore other = GetTopicStore(entity.TopicId);
if (entity.Equals(other))
{
return(entity);
}
string sql = @"Update TopicStore set [ID]=@ID
, [StoreID]=@StoreID
, [CreatedOn]=@CreatedOn
where TopicID=@TopicID" ;
SqlParameter[] parameterArray = new SqlParameter[] {
new SqlParameter("@TopicID", entity.TopicId)
, new SqlParameter("@ID", entity.Id)
, new SqlParameter("@StoreID", entity.StoreId)
, new SqlParameter("@CreatedOn", entity.CreatedOn)
};
SqlHelper.ExecuteNonQuery(this.ConnectionString, CommandType.Text, sql, parameterArray);
return(GetTopicStore(entity.TopicId));
}
public virtual TopicStore InsertTopicStore(TopicStore entity)
{
TopicStore other = new TopicStore();
other = entity;
if (entity.IsTransient())
{
string sql = @"Insert into TopicStore ( [TopicID]
,[ID]
,[StoreID]
,[CreatedOn] )
Values
( @TopicID
, @ID
, @StoreID
, @CreatedOn );
Select scope_identity()" ;
SqlParameter[] parameterArray = new SqlParameter[] {
new SqlParameter("@TopicID", entity.TopicId)
, new SqlParameter("@ID", entity.Id)
, new SqlParameter("@StoreID", entity.StoreId)
, new SqlParameter("@CreatedOn", entity.CreatedOn)
};
var identity = SqlHelper.ExecuteScalar(this.ConnectionString, CommandType.Text, sql, parameterArray);
if (identity == DBNull.Value)
{
throw new DataException("Identity column was null as a result of the insert operation.");
}
return(GetTopicStore(Convert.ToInt32(identity)));
}
return(entity);
}
public virtual TopicStore TopicStoreFromDataRow(DataRow dr)
{
if (dr == null)
{
return(null);
}
TopicStore entity = new TopicStore();
entity.Id = (System.Int32)dr["ID"];
entity.TopicId = (System.Int32)dr["TopicID"];
entity.StoreId = (System.Int32)dr["StoreID"];
entity.CreatedOn = (System.DateTime)dr["CreatedOn"];
return(entity);
}
public virtual TopicStore DeleteTopicStore(TopicStore entity)
{
this.DeleteTopicStore(entity.TopicId);
return(entity);
}
static async Task Main(string[] args)
{
var topicStore = new TopicStore();
var host = Host.CreateDefaultBuilder(args)
.ConfigureServices(services =>
{
services.AddSingleton(topicStore);
})
.ConfigureWebHostDefaults(b =>
{
b.UseKestrel(o =>
{
o.ListenAnyIP(8000, builder => builder.UseConnectionHandler <PubSubServer>());
o.ListenAnyIP(5000);
});
b.Configure(app =>
{
app.UseRouting();
app.UseEndpoints(e =>
{
e.MapGet("/topics", async context =>
{
var response = from t in topicStore
select new
{
Name = t.Key,
Subscribers = t.Value.SubscriberCount,
Messages = t.Value.PublishCount
};
context.Response.ContentType = "application/json";
await JsonSerializer.SerializeAsync(context.Response.Body, response);
});
e.MapGet("/topics/{name}", async context =>
{
var name = (string)context.Request.RouteValues["name"];
context.Response.ContentType = "application/json";
if (!topicStore.TryGetValue(name, out var t))
{
context.Response.StatusCode = 404;
await JsonSerializer.SerializeAsync(context.Response.Body, new
{
Message = "No such topic found"
});
return;
}
await JsonSerializer.SerializeAsync(context.Response.Body, new
{
Name = name,
Subscribers = t.SubscriberCount,
Messages = t.PublishCount
});
});
});
});
})
.Build();
await host.RunAsync();
}
public TopicStore InsertTopicStore(TopicStore entity)
{
return(_iTopicStoreRepository.InsertTopicStore(entity));
}
public TopicStore UpdateTopicStore(TopicStore entity)
{
return(_iTopicStoreRepository.UpdateTopicStore(entity));
}
