/*
* Children with no priority (the default) come first.
* Children with a number as their priority come next.
* They are sorted numerically by priority, small to large.
* Children with a string as their priority come last.
* They are sorted lexicographically by priority.
* Whenever two children have the same priority (including no priority),
* they are sorted by key. Numeric keys come first (sorted numerically),
* followed by the remaining keys (sorted lexicographically).
*/
public int CompareTo(FirebasePriority other)
{
// Children with no priority (the default) come first.
if (Type == PriorityType.None)
{
if (other.Type == PriorityType.None)
{
return(0);
}
return(-1);
}
else if (other.Type == PriorityType.None)
{
return(1);
}
// Children with a number as their priority come next.
if (Type == PriorityType.Numeric)
{
if (other.Type == PriorityType.Numeric)
{
if (_fp.HasValue && other._fp.HasValue)
{
return(_fp.Value.CompareTo(other._fp.Value));
}
throw new Exception("Priority is a numeric but value not set");
}
return(-1);
}
else if (other.Type == PriorityType.Numeric)
{
return(1);
}
// Children with a string as their priority come last.
if (Type == PriorityType.String)
{
if (other.Type == PriorityType.String)
{
if (_sp != null && other._sp != null)
{
return(String.Compare(_sp, other._sp, StringComparison.Ordinal));
}
throw new Exception("Priority is a string but value not set");
}
// will throw in a moment in release builds
Debug.Assert(false, "It should not be possible for both to not be strings at this point");
}
else if (other.Type == PriorityType.String)
{
return(1);
}
throw new Exception("Priority sorting did not detect a valid state");
}
private void Set(FirebasePath path, string data, FirebasePriority priority, FirebaseStatusCallback callback,
MessageSouce source)
{
var message = new FirebaseMessage(WriteBehavior.Replace, path, data, priority, callback, source);
UpdateLocal(message);
}
internal void SetWithPriority(FirebasePath path, string value, FirebasePriority priority,
FirebaseStatusCallback callback)
{
_cache.SetWithPriority(path, value, priority, callback);
}
internal void SetPriority(FirebasePath path, FirebasePriority priority, FirebaseStatusCallback callback)
{
_cache.SetPriority(path, priority, callback);
}
internal void SetWithPriority(FirebasePath path, string value, FirebasePriority priority,
FirebaseStatusCallback callback)
{
Set(path, value, priority, callback, MessageSouce.Local);
}
internal void SetPriority(FirebasePath path, FirebasePriority priority, FirebaseStatusCallback callback)
{
Set(path.Child(".priority"), priority.JsonValue, callback);
}