/// <summary>
/// Возвращает только кешированные хранилища метаданнх для определенной реплики
/// </summary>
/// <param name="replicaId">The replica id.</param>
/// <returns></returns>
public static SyncMetadataStore OpenStore(SyncId replicaId)
{
SyncMetadataStore retVal = null;
try
{
lock (_lock)
{
ReplicaMetadataAdaptor replica;
if (!_replicaCache.TryGetValue(replicaId, out replica))
{
replica = ReplicaMetadataAdaptor.CreateInstance(replicaId);
if (replica != null)
{
_replicaCache.Add(replicaId, replica);
}
}
retVal = new SyncMetadataStore(replica);
}
}
catch (ArgumentException)
{
}
return(retVal);
}
protected override void InitializeMetaDataStore()
{
if (_metaDataStore == null || _metaData == null)
{
// Values for adding a custom field to the metadata store
List <FieldSchema> fields = new List <FieldSchema>();
_metaDataStore = SyncMetadataStore.OpenStore(ReplicaId);
_metaData = _metaDataStore.GetReplicaMetadata(IdFormats, ReplicaId);
}
}
protected override void BeginTransaction()
{
if (_metaDataStore == null)
{
throw new ArgumentNullException("metadata store not initialized");
}
SyncMetadataStore metaDataStore = _metaDataStore as SyncMetadataStore;
metaDataStore.BeginTransaction();
}
/// <summary>
/// Создает хранилище метаданных реплики
/// </summary>
/// <param name="replicaId">The replica id.</param>
/// <param name="idFormats">The id formats.</param>
/// <returns></returns>
public static SyncMetadataStore CreateStore(SyncId replicaId, int principalId)
{
SyncMetadataStore retVal = null;
ReplicaMetadataAdaptor replica = ReplicaMetadataAdaptor.CreateInstance(replicaId, StaticIdFormats);
if (replica != null)
{
replica.PrincipalId = principalId;
replica.Save();
}
retVal = OpenStore(replicaId);
return(retVal);
}
/// <summary>
/// Создает экземпляр провайдера для заданного пользователя
/// </summary>
/// <param name="principalId">The principal id.</param>
/// <returns></returns>
public static CalendarEventSyncProvider CreateInstance(int principalId)
{
CalendarEventSyncProvider retVal = null;
lock (_lock)
{
SyncId replicaId = SyncMetadataStore.FindReplicaIdByPrincipalId(principalId);
if (replicaId == null)
{
//генерируем новый replica id
replicaId = new SyncId(Guid.NewGuid());
//Создаем новое хранилище метаданных реплики
SyncMetadataStore.CreateStore(replicaId, principalId);
}
retVal = new CalendarEventSyncProvider(replicaId);
retVal.InitializeMetaDataStore();
}
return(retVal);
}
/// <summary>
/// Возвращает только кешированные хранилища метаданнх для определенной реплики
/// </summary>
/// <param name="replicaId">The replica id.</param>
/// <returns></returns>
public static SyncMetadataStore OpenStore(SyncId replicaId)
{
SyncMetadataStore retVal = null;
try
{
lock (_lock)
{
ReplicaMetadataAdaptor replica;
if (!_replicaCache.TryGetValue(replicaId, out replica))
{
replica = ReplicaMetadataAdaptor.CreateInstance(replicaId);
if (replica != null)
{
_replicaCache.Add(replicaId, replica);
}
}
retVal = new SyncMetadataStore(replica);
}
}
catch (ArgumentException)
{
}
return retVal;
}
