public ObjectStore(string name, Database ownerdatabase, ObjectStoreParameters parameters)
{
this.Name = name;
this.ObjectFolder = ownerdatabase.objectFolder(name);
this.StoreSettingFile = ownerdatabase.StoreSetitingFile(name);
this.OwnerDatabase = ownerdatabase;
this.StoreSetting = Helper.SettingHelper.GetOrSetSetting <TValue, TKey>(this.StoreSettingFile, parameters);
Init();
}
public ObjectStorePool(Database Database, string StoreName, ObjectStoreParameters Parameters)
{
this.database = Database;
this.storeName = StoreName;
if (parameters != null)
{
this.parameters = Parameters;
}
else
{
this.parameters = new ObjectStoreParameters();
}
}
/// <summary>
/// Get an new instance of the ObjectStore.
/// </summary>
/// <typeparam name="TKey"></typeparam>
/// <typeparam name="TValue"></typeparam>
/// <param name="name"></param>
/// <returns></returns>
public ObjectStore <TKey, TValue> GetReadingStore <TKey, TValue>(string name, ObjectStoreParameters paras = null)
{
string storename = name.ToValidPath();
if (paras == null)
{
paras = new ObjectStoreParameters();
}
if (!HasObjectStore(storename))
{
throw new Exception("store: " + name + " does not exists");
}
return(new ObjectStore <TKey, TValue>(storename, this, paras));
}
private static ObjectStore <long, LogEntry> GetLog(Database db)
{
string storename = GlobalSettings.EditLogUniqueName;
ObjectStoreParameters paras = new ObjectStoreParameters();
paras.EnableLog = false;
paras.EnableVersion = false;
paras.AddIndex <LogEntry>(o => o.KeyHash);
paras.AddColumn <LogEntry>(o => o.StoreNameHash);
paras.AddColumn <LogEntry>(o => o.TimeTick);
paras.SetPrimaryKeyField <LogEntry>(o => o.Id);
return(db.GetOrCreateObjectStore <Int64, LogEntry>(storename, paras));
}
public ObjectStore <OKey, OValue> RebuildObjectStore <OKey, OValue>(ObjectStore <OKey, OValue> currentStore, ObjectStoreParameters newparas)
{
string storename = currentStore.Name;
string newname = "_koobootemp" + storename;
if (currentStore == null)
{
throw new FileNotFoundException("store does not exists, name: " + Name);
}
if (string.IsNullOrEmpty(newparas.PrimaryKey))
{
throw new Exception("rebuild index requires setting the primary key field in ObjectStoreParameters.");
}
else
{
var valuetype = typeof(OValue);
var fieldtype = valuetype.GetField(newparas.PrimaryKey);
if (fieldtype == null)
{
var property = valuetype.GetProperty(newparas.PrimaryKey);
if (property == null)
{
throw new Exception("rebuild index requires setting the primary key field in ObjectStoreParameters.");
}
}
}
var newstore = this.GetOrCreateObjectStore <OKey, OValue>(newname, newparas);
lock (_locker)
{
foreach (var item in currentStore.ItemCollection())
{
newstore.add(item, false);
}
string oldfolder = currentStore.ObjectFolder;
string newfolder = newstore.ObjectFolder;
currentStore.Close();
currentStore.DelSelf();
newstore.Close();
this.Log.DeleteByStoreName(storename);
System.IO.Directory.Move(newfolder, oldfolder);
if (this.openStoreList.ContainsKey(storename))
{
this.openStoreList.Remove(storename);
}
}
newstore.Close();
newstore = null;
if (this.openStoreList.ContainsKey(newname))
{
this.openStoreList.Remove(newname);
}
return(this.GetObjectStore <OKey, OValue>(storename));
}
public ObjectStore <Tkey, TValue> GetOrCreateObjectStore <Tkey, TValue>(string StoreName, ObjectStoreParameters Parameters = null)
{
StoreName = StoreName.ToValidPath();
if (this.HasObjectStore(StoreName))
{
return(this.GetObjectStore <Tkey, TValue>(StoreName));
}
else
{
lock (_locker)
{
if (!HasObjectStore(StoreName))
{
// Should be removed.
#region TempUpgrade2017end
var oldsettingfile = objectSettingFile(StoreName);
if (System.IO.File.Exists(oldsettingfile))
{
var oldsetting = SettingSerializer.DeserializeObjectStoreSetting(oldsettingfile);
if (oldsetting.UseDefaultNETBinaryFormater)
{
//clean everything. does not want to upgrade those....
var folder = objectFolder(StoreName);
System.IO.Directory.Delete(folder, true);
return(GetOrCreateObjectStore <Tkey, TValue>(StoreName, Parameters));
}
int keyoffset = oldsetting.primaryKeyLength;
foreach (var item in oldsetting.ColumnList)
{
if (item.KeyType == typeof(string))
{
keyoffset += item.length;
}
else
{
keyoffset += Helper.KeyHelper.GetKeyLen(item.KeyType, item.length);
}
}
var oldfolder = this.objectFolder(StoreName);
// primary key.
var primaryIndex = new Btree.BtreeIndex <Tkey>(oldsetting.primaryKeyFieldName, true, oldsetting.primaryKeyLength, Helper.IndexHelper.GetIndexFileName(oldfolder, oldsetting.primaryKeyFieldName), oldsetting.MaxCacheLevel);
string blockfileName = System.IO.Path.Combine(oldfolder, "Data.block");
var blockfile = new BlockFile(blockfileName);
blockfile.OpenOrCreate();
var converter = new Serializer.Simple.SimpleConverter <TValue>();
string newname = "_koobootemp" + StoreName;
var newfolder = this.objectFolder(newname);
var upStore = this.GetOrCreateObjectStore <Tkey, TValue>(newname, Parameters);
lock (_locker)
{
foreach (var item in primaryIndex.allItemCollection(true))
{
var bytes = blockfile.GetContent(item, keyoffset);
var newobj = converter.FromBytes(bytes);
upStore.add(newobj);
}
blockfile.Close();
primaryIndex.Close();
upStore.Close();
this.DeleteObjectStore(StoreName);
if (System.IO.Directory.Exists(oldfolder))
{
System.IO.Directory.Delete(oldfolder, true);
}
System.IO.Directory.Move(newfolder, oldfolder);
if (this.openStoreList.ContainsKey(StoreName))
{
this.openStoreList.Remove(StoreName);
}
}
return(this.GetOrCreateObjectStore <Tkey, TValue>(StoreName, Parameters));
}
#endregion
clearOpenStoreCache();
if (Parameters == null)
{
Parameters = new ObjectStoreParameters();
}
ObjectStore <Tkey, TValue> newstore = new ObjectStore <Tkey, TValue>(StoreName, this, Parameters);
this.openStoreList.Add(StoreName, newstore);
}
}
return(this.openStoreList[StoreName] as ObjectStore <Tkey, TValue>);
}
}
public bool CheckSameSetting(ObjectStoreParameters ParametersToCheck)
{
var parasetting = Helper.SettingHelper.GetSetting <TValue>(ParametersToCheck);
return(Helper.SettingHelper.IsSameSetting(this.StoreSetting, parasetting));
}