/// <summary>
/// DeleteAsync
/// </summary>
/// <param name="keys"></param>
/// <param name="versions"></param>
/// <returns></returns>
/// <exception cref="KVStoreException"></exception>
public async Task DeleteAsync <T>(IEnumerable <string> keys, IEnumerable <int> versions) where T : KVStoreEntity, new()
{
ThrowIf.NullOrEmpty(versions, nameof(versions));
if (keys.Count() != versions.Count())
{
throw Exceptions.VersionsKeysNotEqualError();
}
KVStoreEntityDef entityDef = EntityDefFactory.GetDef <T>();
try
{
await _engine.EntityDeleteAsync(
entityDef.KVStoreName,
entityDef.EntityType.FullName !,
keys,
versions
).ConfigureAwait(false);
}
catch (Exception ex) when(!(ex is KVStoreException))
{
throw Exceptions.Unkown(entityDef.EntityType.FullName, entityDef.KVStoreName, keys: keys, values: versions, innerException: ex);
}
}
/// <summary>
/// DeleteAllAsync
/// </summary>
/// <returns></returns>
/// <exception cref="KVStoreException"></exception>
public async Task DeleteAllAsync <T>() where T : KVStoreEntity, new()
{
KVStoreEntityDef entityDef = EntityDefFactory.GetDef <T>();
try
{
await _engine.EntityDeleteAllAsync(
entityDef.KVStoreName,
entityDef.EntityType.FullName !
).ConfigureAwait(false);
}
catch (Exception ex) when(!(ex is KVStoreException))
{
throw Exceptions.Unkown(entityDef.EntityType.FullName, entityDef.KVStoreName, null, ex);
}
}
/// <summary>
/// 反应Version变化
/// </summary>
/// <exception cref="KVStoreException"></exception>
public async Task <IEnumerable <T?> > GetAllAsync <T>() where T : KVStoreEntity, new()
{
KVStoreEntityDef entityDef = EntityDefFactory.GetDef <T>();
try
{
IEnumerable <Tuple <string?, int> > tuples = await _engine.EntityGetAllAsync(
entityDef.KVStoreName,
entityDef.EntityType.FullName !).ConfigureAwait(false);
return(MapTupleToEntity <T>(tuples));
}
catch (Exception ex) when(!(ex is KVStoreException))
{
throw Exceptions.Unkown(type: typeof(T).FullName, storeName: entityDef.KVStoreName, key: null, innerException: ex);
}
}
private static string GetEntityKey <T>(T item, KVStoreEntityDef entityDef) where T : KVStoreEntity, new()
{
StringBuilder builder = new StringBuilder();
int count = entityDef.KeyPropertyInfos.Count;
for (int i = 0; i < count; ++i)
{
builder.Append(entityDef.KeyPropertyInfos[i].GetValue(item));
if (i != count - 1)
{
builder.Append('_');
}
}
return(builder.ToString());
}
/// <summary>
/// 反应Version变化
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="items"></param>
/// <param name="lastUser"></param>
/// <returns></returns>
/// <exception cref="KVStoreException"></exception>
public async Task UpdateAsync <T>(IEnumerable <T> items, string lastUser) where T : KVStoreEntity, new()
{
if (!items.Any())
{
return;
}
ThrowIf.NotValid(items, nameof(items));
KVStoreEntityDef entityDef = EntityDefFactory.GetDef <T>();
try
{
IEnumerable <int> originalVersions = items.Select(t => t.Version).ToArray();
foreach (var t in items)
{
t.LastUser = lastUser;
t.LastTime = TimeUtil.UtcNow;
}
await _engine.EntityUpdateAsync(
entityDef.KVStoreName,
entityDef.EntityType.FullName !,
items.Select(t => GetEntityKey(t, entityDef)),
items.Select(t => SerializeUtil.ToJson(t)),
originalVersions).ConfigureAwait(false);
//反应Version变化
foreach (var t in items)
{
t.Version++;
}
}
catch (Exception ex) when(!(ex is KVStoreException))
{
throw Exceptions.Unkown(entityDef.EntityType.FullName, entityDef.KVStoreName, items, ex);
}
}
public string GetEntityKey <T>(T item) where T : KVStoreEntity, new()
{
KVStoreEntityDef entityDef = EntityDefFactory.GetDef <T>();
return(GetEntityKey(item, entityDef));
}
