Доработка лабораторной работы

This commit is contained in:
Evgehil 2024-04-15 09:50:58 +04:00
parent 0588c9c4aa
commit 5066020b8a
2 changed files with 68 additions and 88 deletions

View File

@ -85,57 +85,52 @@ public class StorageCollection<T>
} }
/// <summary> /// <summary>
/// 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>true - сохранение прошло успешно, false - ошибка при сохранении данных</returns>
public bool SaveData(string filename) public bool SaveData(string filename)
{ {
if (_storages.Count == 0) if (_storages.Count == 0)
{ {
return false; return false;
} }
if (File.Exists(filename)) if (File.Exists(filename))
{ {
File.Delete(filename); File.Delete(filename);
} }
using (StreamWriter writer = new StreamWriter(filename))
StringBuilder sb = new();
sb.Append(_collectionKey);
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; StringBuilder sb = new();
} sb.Append(Environment.NewLine);
// не сохраняем пустые коллекции
sb.Append(value.Key); if (value.Value.Count == 0)
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(value.Key);
sb.Append(data); sb.Append(_separatorForKeyValue);
sb.Append(_separatorItems); 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;
}
sb.Append(data);
sb.Append(_separatorItems);
}
writer.Write(sb);
} }
}
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;
} }
@ -150,63 +145,48 @@ public class StorageCollection<T>
{ {
return false; return false;
} }
using (StreamReader fs = File.OpenText(filename))
string bufferTextFromFile = "";
using (FileStream fs = new(filename, FileMode.Open))
{ {
byte[] b = new byte[fs.Length]; string str = fs.ReadLine();
UTF8Encoding temp = new(true); if (str == null || str.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 (!str.StartsWith(_collectionKey))
collection.MaxCount = Convert.ToInt32(record[2]);
string[] set = record[3].Split(_separatorItems, StringSplitOptions.RemoveEmptyEntries);
foreach (string elem in set)
{ {
if (elem?.CreateDrawingAirplan() is T airplan) return false;
}
_storages.Clear();
string strs = "";
while ((strs = fs.ReadLine()) != null)
{
string[] record = strs.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
if (record.Length != 4)
{ {
if (collection.Insert(airplan) == -1) continue;
}
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?. CreateDrawingAirplan() is T ship)
{ {
return false; if (collection.Insert(ship) == -1)
{
return false;
}
} }
} }
_storages.Add(record[0], collection);
} }
_storages.Add(record[0], collection); return true;
} }
return true;
} }
/// <summary> /// <summary>

View File

@ -69,10 +69,10 @@ public partial class FormAirplanConfig : Form
} }
/// <summary> /// <summary>
/// Проверка получаемой информации (ее типа на соответствие требуемому) /// Проверка получаемой информации(ее типа на соответствие требуемому)
/// </summary> /// </summary>
/// <param name="sender"></param> /// <param name = "sender" ></ param >
/// <param name="e"></param> /// < param name="e"></param>
private void PanelObject_DragEnter(object sender, DragEventArgs e) private void PanelObject_DragEnter(object sender, DragEventArgs e)
{ {
e.Effect = e.Data?.GetDataPresent(DataFormats.Text) ?? false ? DragDropEffects.Copy : DragDropEffects.None; e.Effect = e.Data?.GetDataPresent(DataFormats.Text) ?? false ? DragDropEffects.Copy : DragDropEffects.None;
@ -81,8 +81,8 @@ public partial class FormAirplanConfig : Form
/// <summary> /// <summary>
/// Действия при приеме перетаскиваемой информации /// Действия при приеме перетаскиваемой информации
/// </summary> /// </summary>
/// <param name="sender"></param> /// <param name = "sender" ></ param >
/// <param name="e"></param> /// < param name="e"></param>
private void PanelObject_DragDrop(object sender, DragEventArgs e) private void PanelObject_DragDrop(object sender, DragEventArgs e)
{ {
switch (e.Data?.GetData(DataFormats.Text)?.ToString()) switch (e.Data?.GetData(DataFormats.Text)?.ToString())
@ -102,8 +102,8 @@ public partial class FormAirplanConfig : Form
/// <summary> /// <summary>
/// Передаем информацию при нажатии на Panel /// Передаем информацию при нажатии на Panel
/// </summary> /// </summary>
/// <param name="sender"></param> /// <param name = "sender" ></ param >
/// <param name="e"></param> /// < param name="e"></param>
private void Panel_MouseDown(object? sender, MouseEventArgs e) private void Panel_MouseDown(object? sender, MouseEventArgs e)
{ {
(sender as Control)?.DoDragDrop((sender as Control)?.BackColor, DragDropEffects.Move | DragDropEffects.Copy); (sender as Control)?.DoDragDrop((sender as Control)?.BackColor, DragDropEffects.Move | DragDropEffects.Copy);