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Timeline: get better perf

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ganfra
2019-02-25 18:10:37 +01:00
parent f06211ce4f
commit 6c7bc2b40c
5 changed files with 48 additions and 19 deletions
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11
matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/members/RoomMemberExtractor.kt
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@ -34,22 +34,23 @@ internal class RoomMemberExtractor(private val monarchy: Monarchy,
private val cached = HashMap<String, RoomMember?>()
fun extractFrom(event: EventEntity): RoomMember? {
if (cached.containsKey(event.eventId)) {
return cached[event.eventId]
}
val sender = event.sender ?: return null
val cacheKey = sender + event.stateIndex
if (cached.containsKey(cacheKey)) {
return cached[cacheKey]
}
// If the event is unlinked we want to fetch unlinked state events
val unlinked = event.isUnlinked
// When stateIndex is negative, we try to get the next stateEvent prevContent()
// If prevContent is null we fallback to the Int.MIN state events content()
val content = if (event.stateIndex <= 0) {
baseQuery(monarchy, roomId, sender, unlinked).next(from = event.stateIndex)?.prevContent
?: baseQuery(monarchy, roomId, sender, unlinked).last(since = event.stateIndex)?.content
?: baseQuery(monarchy, roomId, sender, unlinked).last(since = event.stateIndex)?.content
} else {
baseQuery(monarchy, roomId, sender, unlinked).last(since = event.stateIndex)?.content
}
val roomMember: RoomMember? = ContentMapper.map(content).toModel()
cached[event.eventId] = roomMember
cached[cacheKey] = roomMember
return roomMember
}