public static VisualBubble FetchNewestBubbleIfNotWaiting(Stream stream, Service service,
int searchDepth = 10)
{
VisualBubble firstBubble = null;
lock (OperationLock)
{
stream.Seek(stream.Length, SeekOrigin.Begin);
for (var i = 0; i < searchDepth; i++)
{
if (stream.Position == 0)
{
break;
}
byte[] headerBytes;
int headerBytesLength;
int endPosition;
BubbleGroupDatabasePrimitives.ReadBubbleHeaderType(stream, out headerBytes,
out headerBytesLength, out endPosition);
var guid = BubbleGroupDatabasePrimitives.ReadBubbleHeaderStruct(headerBytes, headerBytesLength,
endPosition + 1, out endPosition);
var bubbleData = BubbleGroupDatabasePrimitives.ReadBubbleData(stream);
var visualBubble = Deserialize(bubbleData);
if (visualBubble == null)
{
continue;
}
// if any of the bubbles are waiting, then make sure to perform a full load
if (!(visualBubble is NewBubble) &&
(visualBubble.Status == Bubble.BubbleStatus.Waiting && visualBubble.Direction == Bubble.BubbleDirection.Outgoing))
{
return(null);
}
if (firstBubble == null)
{
visualBubble.Service = service;
visualBubble.ID = guid;
firstBubble = visualBubble;
}
}
}
return(firstBubble);
}
public static long FetchBubblesOnDay(BubbleGroup group, Stream stream, Action <VisualBubble> updateCallback,
int day, long cursor = -1, string[] bubbleTypes = null, Func <VisualBubble, bool> comparer = null)
{
var lowerTime = Time.GetNowUnixTimestamp() - (day * 86400);
var upperTime = lowerTime + 86400 + 600;
lock (OperationLock)
{
stream.Seek(cursor == -1 ? stream.Length : cursor, SeekOrigin.Begin);
long streamPosition;
while (true)
{
streamPosition = stream.Position;
if (stream.Position == 0)
{
return(-2);
}
var found = false;
byte[] headerBytes;
int headerBytesLength;
int endPosition;
if (bubbleTypes == null)
{
BubbleGroupDatabasePrimitives.ReadBubbleHeader(stream, out headerBytes, out headerBytesLength);
BubbleGroupDatabasePrimitives.FindBubbleHeaderDelimiter(headerBytes, headerBytesLength, 0, out endPosition);
found = true;
}
else
{
var bubbleType = BubbleGroupDatabasePrimitives.ReadBubbleHeaderType(stream, out headerBytes,
out headerBytesLength, out endPosition);
for (var x = 0; x < bubbleTypes.Length; x++)
{
if (bubbleTypes[x] != bubbleType)
{
continue;
}
found = true;
break;
}
}
if (found)
{
var guid = BubbleGroupDatabasePrimitives.ReadBubbleHeaderStruct(headerBytes, headerBytesLength,
endPosition + 1, out endPosition);
var time = BubbleGroupDatabasePrimitives.AsciiBytesToString(headerBytes, endPosition + 1,
headerBytesLength);
long longTime;
Int64.TryParse(time, out longTime);
if (longTime < lowerTime)
{
break;
}
if (longTime > upperTime)
{
BubbleGroupDatabasePrimitives.JumpBubbleData(stream);
continue;
}
var bubbleData = BubbleGroupDatabasePrimitives.ReadBubbleData(stream);
var visualBubble = Deserialize(bubbleData);
if (visualBubble == null)
{
continue;
}
if (comparer != null && !comparer(visualBubble))
{
continue;
}
visualBubble.Service = @group.Service;
visualBubble.ID = guid;
visualBubble.BubbleGroupReference = @group;
updateCallback(visualBubble);
}
else
{
BubbleGroupDatabasePrimitives.JumpBubbleData(stream);
}
}
return(streamPosition);
}
}
