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Лабораторная работа №6

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This commit is contained in:
xom9kxom9k 2024-04-19 19:01:19 +04:00
parent a868c596e2
commit 53d3354462
1 changed files with 58 additions and 73 deletions
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131
AntiAircraftGun/CollectionGenericObjects/StorageCollection.cs
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@ -87,7 +87,7 @@ public class StorageCollection<T>
/// Сохранение информации по автомобилям в хранилище в файл /// Сохранение информации по автомобилям в хранилище в файл
/// </summary> /// </summary>
/// <param name="filename">Путь и имя файла</param> /// <param name="filename">Путь и имя файла</param>
/// <returns>true - сохранение прошло успешно, false - ошибка при сохранении данных</returns> /// <returns></returns>
public bool SaveData(string filename) public bool SaveData(string filename)
{ {
if (_storages.Count == 0) if (_storages.Count == 0)
@ -102,39 +102,38 @@ public class StorageCollection<T>
StringBuilder sb = new(); StringBuilder sb = new();
sb.Append(_collectionKey); using (StreamWriter writer = new(filename))
foreach (KeyValuePair<string, ICollectionGenericObjects<T>> value in _storages)
{ {
sb.Append(Environment.NewLine); writer.Write(_collectionKey);
// не сохраняем пустые коллекции foreach (KeyValuePair<string, ICollectionGenericObjects<T>> value in _storages)
if (value.Value.Count == 0)
{ {
continue; writer.Write(Environment.NewLine);
} // не сохраняем пустые коллекции
if (value.Value.Count == 0)
sb.Append(value.Key);
sb.Append(_separatorForKeyValue);
sb.Append(value.Value.GetCollectionType);
sb.Append(_separatorForKeyValue);
sb.Append(value.Value.MaxCount);
sb.Append(_separatorForKeyValue);
foreach (T? item in value.Value.GetItems())
{
string data = item?.GetDataForSave() ?? string.Empty;
if (string.IsNullOrEmpty(data))
{ {
continue; continue;
} }
sb.Append(data); writer.Write(value.Key);
sb.Append(_separatorItems); writer.Write(_separatorForKeyValue);
writer.Write(value.Value.GetCollectionType);
writer.Write(_separatorForKeyValue);
writer.Write(value.Value.MaxCount);
writer.Write(_separatorForKeyValue);
foreach (T? item in value.Value.GetItems())
{
string data = item?.GetDataForSave() ?? string.Empty;
if (string.IsNullOrEmpty(data))
{
continue;
}
writer.Write(data);
writer.Write(_separatorItems);
}
} }
} }
using FileStream fs = new(filename, FileMode.Create);
byte[] info = new UTF8Encoding(true).GetBytes(sb.ToString());
fs.Write(info, 0, info.Length);
return true; return true;
} }
@ -149,63 +148,49 @@ public class StorageCollection<T>
{ {
return false; return false;
} }
using (StreamReader reader = new(filename))
string bufferTextFromFile = "";
using (FileStream fs = new(filename, FileMode.Open))
{ {
byte[] b = new byte[fs.Length]; string line = reader.ReadLine();
UTF8Encoding temp = new(true); if (line == null || line.Length == 0)
while (fs.Read(b, 0, b.Length) > 0)
{ {
bufferTextFromFile += temp.GetString(b);
}
}
string[] strs = bufferTextFromFile.Split(new char[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries);
if (strs == null || strs.Length == 0)
{
return false;
}
if (!strs[0].Equals(_collectionKey))
{
//если нет такой записи, то это не те данные
return false;
}
_storages.Clear();
foreach (string data in strs)
{
string[] record = data.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
if (record.Length != 4)
{
continue;
}
CollectionType collectionType = (CollectionType)Enum.Parse(typeof(CollectionType), record[1]);
ICollectionGenericObjects<T>? collection = StorageCollection<T>.CreateCollection(collectionType);
if (collection == null)
{
return false; return false;
} }
if (!line.Equals(_collectionKey))
collection.MaxCount = Convert.ToInt32(record[2]);
string[] set = record[3].Split(_separatorItems, StringSplitOptions.RemoveEmptyEntries);
foreach (string elem in set)
{ {
if (elem?.CreateDrawningArmoredCar() is T car) //если нет такой записи, то это не те данные
return false;
}
_storages.Clear();
while ((line = reader.ReadLine()) != null)
{
string[] record = line.Split(_separatorForKeyValue,
StringSplitOptions.RemoveEmptyEntries);
if (record.Length != 4)
{ {
if (collection.Insert(car)== -1) continue;
{ }
return false; CollectionType collectionType = (CollectionType)Enum.Parse(typeof(CollectionType), record[1]);
ICollectionGenericObjects<T>? collection = StorageCollection<T>.CreateCollection(collectionType);
if (collection == null)
{
return false;
}
collection.MaxCount = Convert.ToInt32(record[2]);
string[] set = record[3].Split(_separatorItems,
StringSplitOptions.RemoveEmptyEntries);
foreach (string elem in set)
{
if (elem?.CreateDrawningArmoredCar() is T truck)
{
if (collection.Insert(truck) == -1)
{
return false;
}
} }
} }
_storages.Add(record[0], collection);
} }
_storages.Add(record[0], collection);
} }
return true; return true;
} }