private void HandleAddOrUpdateAndGet(CacheMessage message)
{
DoHandleAddUpdateAndGet(message, true, true,true);
}
private void HandleAddGroup(CacheMessage message)
{
var msg = (CacheMessage)message;
if (msg.GroupDefinition == null) return;
if (!_groups.ContainsKey(msg.GroupDefinition.Id))
{
_groups.TryAdd(msg.GroupDefinition.Id, new CacheGroup(msg.GroupDefinition));
}
}
public void SetGroupTimeout(TimeSpan timeout, string groupId = null)
{
if (!_groups.ContainsKey(groupId ?? string.Empty))
{
throw new Exception("Missing cache group id " + groupId ?? string.Empty);
}
var cm = new CacheMessage(CacheAction.UpdateGroupTimeout, _messageTimeout)
{
GroupId = groupId ?? string.Empty,
GroupTimeout = timeout
};
_cacheMessages.Enqueue(cm);
}
private void HandleAddItem(CacheMessage message, bool update = false)
{
DoHandleAddUpdateAndGet(message, false, false,true);
}
private void HandleRemoveGroup(CacheMessage message)
{
if (_groups.ContainsKey(message.GroupId))
{
CacheGroup cg;
_groups.TryRemove(message.GroupId, out cg);
}
}
public void RemoveGroup(string groupId)
{
var cm = new CacheMessage(CacheAction.RemoveGroup, _messageTimeout)
{
GroupId = groupId
};
_cacheMessages.Enqueue(cm);
}
private void HandleInvalidateItem(CacheMessage message)
{
if (!_groups.ContainsKey(message.GroupId)) return;
var group = _groups[message.GroupId];
if (!group.Items.ContainsKey(message.ItemId)) return;
var item = group.Items[message.ItemId];
if (!item.IsWaiting)
{
group.Items.Remove(message.ItemId);
}
}
public ICoroutineResult Get(string cacheId, Action<object> set, string groupId = null)
{
if (!_groups.ContainsKey(groupId ?? string.Empty))
{
throw new Exception("Missing cache group id " + groupId ?? string.Empty);
}
var cm = new CacheMessage(CacheAction.Get, _messageTimeout)
{
GroupId = groupId,
ItemId = cacheId,
CacheItem = new CacheItem
{
Id = cacheId
}
};
_cacheMessages.Enqueue(cm);
return BuildResult(cm, set);
}
private void HandleMessage(CacheMessage message)
{
message.GroupId = message.GroupId ?? string.Empty;
switch (message.Action)
{
case (CacheAction.AddGroup):
HandleAddGroup(message);
break;
case (CacheAction.InvalidateGroup):
HandleInvalidateGroup(message);
break;
case (CacheAction.RemoveGroup):
HandleRemoveGroup(message);
break;
case (CacheAction.AddItem):
HandleAddItem(message);
break;
case (CacheAction.AddOrUpdateItem):
HandleAddOrUpdateItem(message);
break;
case (CacheAction.InvalidateItem):
HandleInvalidateItem(message);
break;
case (CacheAction.AddAndGet):
HandleAddAndGet(message);
break;
case (CacheAction.AddOrUpdateAndGet):
HandleAddOrUpdateAndGet(message);
break;
case (CacheAction.Get):
HandleGet(message);
break;
case (CacheAction.UpdateGroupTimeout):
HandleUpdateGroupTimeout(message);
break;
default:
message.Value = null;
message.IsCompleted = true;
break;
}
}
private IEnumerable<ICoroutineResult> WaitForResponse(CacheMessage cm)
{
while (!cm.IsCompleted.Value)
{
yield return CoroutineResult.Wait;
}
cm.IsCompleted = true;
if (cm.HasValue)
{
yield return CoroutineResult.Return(cm.Value);
}
else
{
yield return CoroutineResult.Return(null);
}
}
public ICoroutineResult AddOrUpdateAndGet(CacheDefinition cacheItem, Action<object> set, string groupId = null)
{
SetupCacheDefinitionExpireTime(cacheItem, groupId);
var cm = new CacheMessage(CacheAction.AddOrUpdateAndGet, _messageTimeout)
{
GroupId = groupId,
CacheItem = cacheItem,
ItemId = cacheItem.Id
};
_cacheMessages.Enqueue(cm);
return BuildResult(cm, set);
}
private ICoroutineResult BuildResult(CacheMessage cm, Action<object> set)
{
return CoroutineResult.RunAndGetResult(WaitForResponse(cm),
string.Format("NodeCache::BuildResult('{0}',action)", cm.CacheItem.Id))
.OnComplete((a) => set(a.Result))
.WithTimeout(_messageTimeout)
.OnError((a) =>
{
Log.Warning("Unable to load " + cm.CacheItem.Id);
set(null);
return true;
}).AndWait();
}
public void InvalidateItem(string id, string groupId = null)
{
var cm = new CacheMessage(CacheAction.InvalidateItem, _messageTimeout)
{
GroupId = groupId,
ItemId = id
};
_cacheMessages.Enqueue(cm);
}
public void AddOrUpdateItem(CacheDefinition cacheItem, string groupId = null)
{
SetupCacheDefinitionExpireTime(cacheItem, groupId);
var cm = new CacheMessage(CacheAction.AddOrUpdateItem, _messageTimeout)
{
GroupId = groupId,
CacheItem = cacheItem,
ItemId = cacheItem.Id
};
_cacheMessages.Enqueue(cm);
}
private void HandleInvalidateGroup(CacheMessage message)
{
throw new System.NotImplementedException();
}
private void DoHandleAddUpdateAndGet(CacheMessage message, bool doGet, bool doUpdate, bool doAdd)
{
var expireAfter = message.CacheItem.ExpireAfter;
if (!_groups.ContainsKey(message.GroupId)) return;
var group = _groups[message.GroupId];
if (!group.Items.ContainsKey(message.ItemId) || doUpdate)
{
if (!doAdd)
{
message.HasValue = false;
message.IsCompleted = true;
return;
}
var item = new CacheItem
{
ExpireAfter = expireAfter,
IsWaiting = true
};
@group.Items[message.ItemId] = item;
if (message.CacheItem.LoadData == null)
{
item.Value = message.CacheItem.Value;
item.IsWaiting = false;
}
else
{
if (doGet)
{
_pending.Add(message);
}
var coroutine = CoroutineResult.RunAndGetResult(message.CacheItem.LoadData(),
string.Format("NodeCache::HandleAddUpdateGet('{0}',{1},{2})",
message.CacheItem.Id, doGet, doUpdate))
.OnComplete<object>((r) =>
{
item.Value = r;
item.IsWaiting = false;
})
.WithTimeout(_messageTimeout)
.OnError((e) =>
{
item.IsWaiting = false;
return true;
}).AsCoroutine();
_coroutinesManager.StartCoroutine(coroutine);
}
}
else
{
var item = group.Items[message.ItemId];
if (!item.IsWaiting)
{
if (group.RollingExpiration)
{
item.ExpireAfter = message.CacheItem.ExpireAfter;
}
message.Value = item.Value;
message.HasValue = true;
message.IsCompleted = true;
}
else
{
if (doGet)
{
message.CacheItem.ExpireAfter = expireAfter;
_pending.Add(message);
}
}
}
}
private void HandleUpdateGroupTimeout(CacheMessage message)
{
throw new NotImplementedException();
}
public void AddGroup(CacheGroupDefinition groupDefinition, CacheDefinition cacheItem = null)
{
if (_groups.ContainsKey(groupDefinition.Id))
{
throw new Exception("Duplicate cache group id " + groupDefinition.Id);
}
var cm = new CacheMessage(CacheAction.AddGroup, _messageTimeout)
{
GroupDefinition = groupDefinition,
CacheItem = cacheItem
};
_cacheMessages.Enqueue(cm);
}
