001/*
002 * Trident - A Multithreaded Server Alternative
003 * Copyright 2014 The TridentSDK Team
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *    http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package net.tridentsdk.server.inventory;
019
020import com.google.common.collect.ForwardingCollection;
021import com.google.common.collect.ImmutableList;
022import net.tridentsdk.inventory.Inventories;
023import net.tridentsdk.inventory.Inventory;
024
025import javax.annotation.concurrent.ThreadSafe;
026import java.util.Collection;
027import java.util.Map;
028import java.util.concurrent.ConcurrentHashMap;
029
030/**
031 * Manages the inventory windows on the server, whether being viewed or not
032 *
033 * @author The TridentSDK Team
034 */
035@ThreadSafe
036public class TridentInventories extends ForwardingCollection<Inventory> implements Inventories {
037    private static final Map<Integer, TridentInventory> windows = new ConcurrentHashMap<>();
038
039    @Override
040    public Inventory fromId(int id) {
041        return windows.get(id);
042    }
043
044    @Override
045    public void register(Inventory window) {
046        windows.put(window.id(), (TridentInventory) window);
047    }
048
049    @Override
050    protected Collection<Inventory> delegate() {
051        return ImmutableList.copyOf(windows.values());
052    }
053}