duckietm 5319e5e5c3 🆙 Database performance fixes ...

1. HabboManager - O(1) username lookup
Before: getHabbo(String) held a synchronized lock and iterated ALL online users every call
After: Secondary ConcurrentHashMap<String, Habbo> keyed by lowercase username → instant get() lookup, no lock contention

2. ItemsComponent - Batch DB saves
Before: dispose() spawned a separate thread per dirty item, each opening its own DB connection
After: Single connection, JDBC addBatch()/executeBatch() for both UPDATE and DELETE, flushed every 100 items. A user with 500 dirty items now does 5 batch executions instead of 500 thread spawns + 500 connections.

3. AcceptFriendRequestEvent - N+1 elimination
Before: For each offline user: query 1 (getOfflineHabboInfo by ID) → query 2 (load full Habbo by username) = 2 queries × up to 100 users = 200 queries
After: Single query by user ID directly = 1 query × up to 100 users = 100 queries (50% reduction)

4. RoomManager - Direct HashMap lookup
Before: getCategory(int id) iterated all categories checking getId() == id even though the map is already keyed by ID
After: Direct roomCategories.get(id) → O(1) instead of O(n)

2026-03-26 09:41:31 +01:00

..

Example_Start

Uploading Emulator

2024-03-13 11:28:48 +01:00

sqlupdates

feat: CatalogAdmin server handlers (10050-10059) with acc_catalogfurni

2026-03-22 16:47:31 +01:00

src/main

🆙 Database performance fixes

2026-03-26 09:41:31 +01:00

pom.xml

🆙 Bump to Version 4.1.0

2026-03-25 12:46:07 +01:00