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/* |
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* This file is part of Araknemu. |
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* |
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* Araknemu is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* Araknemu is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with Araknemu. If not, see <https://www.gnu.org/licenses/>. |
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* |
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* Copyright (c) 2017-2019 Vincent Quatrevieux |
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*/ |
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package fr.quatrevieux.araknemu.game.chat; |
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import fr.quatrevieux.araknemu.core.event.Dispatcher; |
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import fr.quatrevieux.araknemu.game.chat.event.ChannelSubscriptionAdded; |
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import fr.quatrevieux.araknemu.game.chat.event.ChannelSubscriptionRemoved; |
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import org.checkerframework.checker.index.qual.NonNegative; |
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import org.checkerframework.checker.nullness.qual.NonNull; |
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import org.checkerframework.checker.nullness.qual.Nullable; |
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import java.util.Collection; |
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import java.util.Collections; |
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import java.util.EnumSet; |
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import java.util.Iterator; |
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import java.util.Set; |
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/** |
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* Set of subscribed channels with a dispatcher for synchronise operations |
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*/ |
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public final class ChannelSet implements Set<ChannelType> { |
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private final Set<ChannelType> set; |
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private final Dispatcher dispatcher; |
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public ChannelSet(Set<ChannelType> set, Dispatcher dispatcher) { |
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this.set = set; |
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this.dispatcher = dispatcher; |
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} |
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@Override |
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public @NonNegative int size() { |
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1 |
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return set.size(); |
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} |
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@Override |
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public boolean isEmpty() { |
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return set.isEmpty(); |
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} |
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@Override |
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public boolean contains(Object o) { |
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1 |
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return set.contains(o); |
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} |
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@Override |
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public Iterator<ChannelType> iterator() { |
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return set.iterator(); |
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} |
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@Override |
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public Object[] toArray() { |
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return set.toArray(); |
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} |
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@Override |
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@SuppressWarnings({"toarray.nullable.elements.not.newarray", "override.param", "return"}) |
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public <T> T @NonNull[] toArray(T @NonNull[] ts) { |
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return set.toArray(ts); |
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} |
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@Override |
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public boolean add(ChannelType channelType) { |
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if (set.add(channelType)) { |
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dispatcher.dispatch(new ChannelSubscriptionAdded(Collections.singleton(channelType))); |
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return true; |
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} |
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return false; |
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} |
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@Override |
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public boolean remove(Object o) { |
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if (set.remove(o)) { |
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dispatcher.dispatch(new ChannelSubscriptionRemoved(Collections.singleton((ChannelType) o))); |
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return true; |
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} |
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return false; |
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} |
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@Override |
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public boolean containsAll(Collection<?> collection) { |
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return set.containsAll(collection); |
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} |
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@Override |
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public boolean addAll(Collection<? extends ChannelType> collection) { |
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if (set.addAll(collection)) { |
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dispatcher.dispatch(new ChannelSubscriptionAdded((Collection<ChannelType>) collection)); |
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return true; |
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} |
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return false; |
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} |
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@Override |
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public boolean retainAll(Collection<?> collection) { |
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throw new UnsupportedOperationException(); |
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} |
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@Override |
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public boolean removeAll(Collection<?> collection) { |
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if (set.removeAll(collection)) { |
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dispatcher.dispatch(new ChannelSubscriptionRemoved((Collection<ChannelType>) collection)); |
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return true; |
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} |
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return false; |
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} |
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@Override |
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public void clear() { |
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set.clear(); |
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dispatcher.dispatch(new ChannelSubscriptionRemoved(EnumSet.allOf(ChannelType.class))); |
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} |
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@Override |
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public boolean equals(@Nullable Object obj) { |
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return set.equals(obj); |
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} |
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} |
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Arakne /
Araknemu
The Java tutorial explains the
equals()andhashCode()in its entry on the Object class.