Beispiel #1
0
        private void importType(JToken model, Data.Contexts.DomainModelMySqlContext context)
        {
            var typeName = (string)model["ModelTypeName"];
            var fileName = (string)model["Name"];

            fileName = _inputDirectory + "extracted-files" + Path.DirectorySeparatorChar + fileName + ".json";

            var oneAtTheTime = _globalOneAtTheTime;

            // check if we should import one at the time (this is used for debugging)
            if (model["ImportOneAtTheTime"] != null)
            {
                oneAtTheTime = (bool)model["ImportOneAtTheTime"];
            }

            Console.Write("seeding data: " + typeName + " .... ");

            // get types
            var myType     = Type.GetType(typeName);
            var myListType = typeof(List <>).MakeGenericType(myType);
            var items      = (IEnumerable <object>)JsonConvert.DeserializeObject(File.ReadAllText(fileName), myListType);
            var objItems   = items.ToArray <object>();

            if (!oneAtTheTime)
            {
                context.AddRange(objItems);
                try
                {
                    context.SaveChanges();
                }
                catch (Exception ex)
                {
                    Console.Write(ex.ToString());
                }
            }
            else
            {
                var count = objItems.Count();
                var ind   = 0;
                Console.Write(" " + count.ToString() + " items ... ");

                // lets add one by one
                foreach (var item in objItems)
                {
                    ind++;
                    if (ind % 10 == 0)
                    {
                        Console.Write(".");
                    }

                    try
                    {
                        context.Add(item);
                        context.SaveChanges();
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine("EXCEPTION ADDING OBJECT:");
                        Console.WriteLine(item);
                        throw ex.InnerException;
                    }
                }
            }

            Console.Write("done!" + Environment.NewLine);
        }
Beispiel #2
0
        private void importTypeWithReader(JToken model, Data.Contexts.DomainModelMySqlContext context)
        {
            var typeName = (string)model["ModelTypeName"];
            var fileName = (string)model["Name"];

            fileName = _inputDirectory + "extracted-files" + Path.DirectorySeparatorChar + fileName + ".json";

            var oneAtTheTime = _globalOneAtTheTime;

            // check if we should import one at the time (this is used for debugging)
            if (model["ImportOneAtTheTime"] != null)
            {
                oneAtTheTime = (bool)model["ImportOneAtTheTime"];
            }

            Console.WriteLine("seeding data: " + typeName + " .... ");

            // get types
            var myType     = Type.GetType(typeName);
            var myListType = typeof(List <>).MakeGenericType(myType);

            var logTimes = 0; // used for debugging

            context.ChangeTracker.AutoDetectChangesEnabled = false;
            var commitCount = 100000;

            var objItems = new HashSet <object>();

            using (var stream = File.OpenRead(fileName))
                using (StreamReader streamReader = new StreamReader(stream))
                    using (JsonTextReader reader = new JsonTextReader(streamReader))
                    {
                        reader.SupportMultipleContent = true;

                        var serializer = new JsonSerializer();
                        while (reader.Read())
                        {
                            if (reader.TokenType == JsonToken.StartObject)
                            {
                                var myObject = serializer.Deserialize(reader, myType);
                                objItems.Add(myObject);

                                // save to every x-objects
                                if (objItems.Count() == commitCount)
                                {
                                    Console.WriteLine("inserting " + (++logTimes * commitCount).ToString("#,##0"));
                                    context.AddRange(objItems);
                                    try
                                    {
                                        context.SaveChanges();
                                    }
                                    catch (Exception ex)
                                    {
                                        Console.Write(ex.ToString());
                                    }
                                    objItems = new HashSet <object>();
                                }
                            }
                        }

                        if (objItems.Any())
                        {
                            Console.WriteLine("inserting: " + objItems.Count().ToString("#,##0"));
                            context.AddRange(objItems);
                            context.SaveChanges();
                        }
                    }

            Console.Write("done!" + Environment.NewLine);
        }