/// <summary>
/// Получение метаданных папок из БД.
/// </summary>
/// <param name="query">Запрос на получение метаданных.</param>
/// <returns></returns>
internal DBCollection <FolderMetadata> GetFolders(string query)
{
DBCollection <FolderMetadata> folders = new DBCollection <FolderMetadata>();
string resultQuery = null;
if (String.IsNullOrEmpty(query))
{
resultQuery = this.SelectQuery;
}
else
{
resultQuery = @"{SelectQuery} WHERE {Query}"
.ReplaceKey("SelectQuery", this.SelectQuery)
.ReplaceKey("Query", query);
}
DataTable resultTable = this.DataAdapter.GetDataTable(resultQuery);
if (resultTable != null)
{
foreach (DataRow row in resultTable.Rows)
{
FolderMetadata metadata = new FolderMetadata(row);
folders.Add(metadata);
}
}
return(folders);
}
private DBCollection <SqlParameter> CreateParameters(T metadataObject, DBCollection <MetadataPropertyDefinition> metadataProperties)
{
if (metadataObject == null)
{
throw new ArgumentNullException("metadataObject");
}
DBCollection <SqlParameter> parameters = new DBCollection <SqlParameter>();
foreach (MetadataPropertyDefinition property in metadataProperties)
{
object value = property.Property.GetValue(metadataObject, null);
DBColumnSchema columnSchema = this.DBSchemaAdapter.TableSchema.GetColumn(property.ColumnName, true);
SqlParameter param = new SqlParameter(property.ParameterName, columnSchema.Type);
param.Value = this.EnsureParameterValue(value);
parameters.Add(param);
}
return(parameters);
}
/// <summary>
/// Получение коллекции объектов хранилища по условию.
/// </summary>
/// <param name="condition">Условие.</param>
/// <returns></returns>
internal DBCollection <StorageMetadata> GetStorages(string condition)
{
string resultQuery = this.SelectQuery;
if (!string.IsNullOrEmpty(condition))
{
resultQuery += string.Format("WHERE {0}", condition);
}
DataTable resultTable = this.DataAdapter.GetDataTable(resultQuery);
DBCollection <StorageMetadata> result = new DBCollection <StorageMetadata>();
if (resultTable != null)
{
foreach (DataRow resultRow in resultTable.Rows)
{
StorageMetadata metadata = new StorageMetadata(resultRow);
result.Add(metadata);
}
}
return(result);
}
/// <summary>
/// Возвращает коллекцию папок репликации.
/// </summary>
/// <param name="condition">Условие на выборку метаданных.</param>
/// <returns></returns>
internal DBCollection <ReplicationFolderMetadata> GetReplicationFolders(string condition = null)
{
DBCollection <ReplicationFolderMetadata> replicationFolders = new DBCollection <ReplicationFolderMetadata>();
string resultQuery = null;
if (string.IsNullOrEmpty(condition))
{
resultQuery = this.SelectQuery;
}
else
{
resultQuery = @"{SelectQuery} WHERE {Condition}"
.ReplaceKey("SelectQuery", this.SelectQuery)
.ReplaceKey("Condition", condition);
}
DataTable resultTable = this.DataAdapter.GetDataTable(resultQuery);
if (resultTable != null)
{
//собираем все идентификаторы папок и узлов хранилища
//чтобы получить их за отдельный запрос
Dictionary <int, FolderMetadata> uniqueFolders = new Dictionary <int, FolderMetadata>();
Dictionary <int, StorageMetadata> uniqueStorages = new Dictionary <int, StorageMetadata>();
//сначала заполняем ключи словарей
foreach (DataRow row in resultTable.Rows)
{
int folderID = DataRowReader.GetIntegerValue(row, "FolderID");
if (folderID > 0 && !uniqueFolders.ContainsKey(folderID))
{
uniqueFolders.Add(folderID, null);
}
int storageID = DataRowReader.GetIntegerValue(row, "StorageID");
if (storageID > 0 && !uniqueStorages.ContainsKey(storageID))
{
uniqueStorages.Add(storageID, null);
}
}
//потом получаем объекты по этим ключам и "дозаполняем" словарь
if (uniqueFolders.Count > 0)
{
string foldersIdentities = string.Join(",", uniqueFolders.Keys.ToArray());
string foldersCondition = string.Format("[ID] IN ({0})", foldersIdentities);
DBCollection <FolderMetadata> folders = this.MetadataAdapter.FolderAdapter.GetFolders(foldersCondition);
foreach (FolderMetadata folder in folders)
{
if (uniqueFolders.ContainsKey(folder.ID))
{
uniqueFolders[folder.ID] = folder;
}
}
}
if (uniqueStorages.Count > 0)
{
string storagesIdentities = string.Join(",", uniqueStorages.Keys.ToArray());
string storagesCondition = string.Format("[ID] IN ({0})", storagesIdentities);
DBCollection <StorageMetadata> storages = this.MetadataAdapter.StorageAdapter.GetStorages(storagesCondition);
foreach (StorageMetadata storage in storages)
{
if (uniqueStorages.ContainsKey(storage.ID))
{
uniqueStorages[storage.ID] = storage;
}
}
}
foreach (DataRow row in resultTable.Rows)
{
FolderMetadata folder = null;
StorageMetadata storage = null;
int folderID = DataRowReader.GetIntegerValue(row, "FolderID");
if (folderID > 0 && uniqueFolders.ContainsKey(folderID))
{
folder = uniqueFolders[folderID];
}
int storageID = DataRowReader.GetIntegerValue(row, "StorageID");
if (storageID > 0 && uniqueStorages.ContainsKey(storageID))
{
storage = uniqueStorages[storageID];
}
if (folder == null)
{
int rowID = DataRowReader.GetIntegerValue(row, "ID");
throw new Exception(string.Format("Для строки метаданных папки репликации с идентификатором {0} не найдена папка с идентификатором {1}",
rowID,
folderID));
}
if (storage == null)
{
int rowID = DataRowReader.GetIntegerValue(row, "ID");
throw new Exception(string.Format("Для строки метаданных папки репликации с идентификатором {0} не найден узел хранилища с идентификатором {1}",
rowID,
storageID));
}
ReplicationFolderMetadata metadata = new ReplicationFolderMetadata(row, folder, storage);
replicationFolders.Add(metadata);
}
}
return(replicationFolders);
}
