/
ChannelDeleteHandler.java
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/
ChannelDeleteHandler.java
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/*
* Copyright 2015-2018 Austin Keener & Michael Ritter & Florian Spieß
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.dv8tion.jda.core.handle;
import net.dv8tion.jda.client.entities.impl.GroupImpl;
import net.dv8tion.jda.client.entities.impl.JDAClientImpl;
import net.dv8tion.jda.client.events.group.GroupLeaveEvent;
import net.dv8tion.jda.core.audio.hooks.ConnectionStatus;
import net.dv8tion.jda.core.entities.*;
import net.dv8tion.jda.core.entities.impl.GuildImpl;
import net.dv8tion.jda.core.entities.impl.JDAImpl;
import net.dv8tion.jda.core.entities.impl.UserImpl;
import net.dv8tion.jda.core.events.channel.category.CategoryDeleteEvent;
import net.dv8tion.jda.core.events.channel.priv.PrivateChannelDeleteEvent;
import net.dv8tion.jda.core.events.channel.text.TextChannelDeleteEvent;
import net.dv8tion.jda.core.events.channel.voice.VoiceChannelDeleteEvent;
import net.dv8tion.jda.core.managers.impl.AudioManagerImpl;
import org.json.JSONObject;
public class ChannelDeleteHandler extends SocketHandler
{
public ChannelDeleteHandler(JDAImpl api)
{
super(api);
}
@Override
protected Long handleInternally(JSONObject content)
{
ChannelType type = ChannelType.fromId(content.getInt("type"));
long guildId = 0;
if (type.isGuild())
{
guildId = content.getLong("guild_id");
if (api.getGuildLock().isLocked(guildId))
return guildId;
}
final long channelId = content.getLong("id");
switch (type)
{
case TEXT:
{
GuildImpl guild = (GuildImpl) api.getGuildMap().get(guildId);
TextChannel channel = api.getTextChannelMap().remove(channelId);
if (channel == null)
{
api.getEventCache().cache(EventCache.Type.CHANNEL, channelId, () -> handle(responseNumber, allContent));
EventCache.LOG.debug("CHANNEL_DELETE attempted to delete a text channel that is not yet cached. JSON: {}", content);
return null;
}
guild.getTextChannelsMap().remove(channel.getIdLong());
api.getEventManager().handle(
new TextChannelDeleteEvent(
api, responseNumber,
channel));
break;
}
case VOICE:
{
GuildImpl guild = (GuildImpl) api.getGuildMap().get(guildId);
VoiceChannel channel = guild.getVoiceChannelsMap().remove(channelId);
if (channel == null)
{
api.getEventCache().cache(EventCache.Type.CHANNEL, channelId, () -> handle(responseNumber, allContent));
EventCache.LOG.debug("CHANNEL_DELETE attempted to delete a voice channel that is not yet cached. JSON: {}", content);
return null;
}
//We use this instead of getAudioManager(Guild) so we don't create a new instance. Efficiency!
AudioManagerImpl manager = (AudioManagerImpl) api.getAudioManagerMap().get(guild.getIdLong());
if (manager != null && manager.isConnected()
&& manager.getConnectedChannel().getIdLong() == channel.getIdLong())
{
manager.closeAudioConnection(ConnectionStatus.DISCONNECTED_CHANNEL_DELETED);
}
guild.getVoiceChannelsMap().remove(channel.getIdLong());
api.getEventManager().handle(
new VoiceChannelDeleteEvent(
api, responseNumber,
channel));
break;
}
case CATEGORY:
{
GuildImpl guild = (GuildImpl) api.getGuildMap().get(guildId);
Category category = api.getCategoryMap().remove(channelId);
if (category == null)
{
api.getEventCache().cache(EventCache.Type.CHANNEL, channelId, () -> handle(responseNumber, allContent));
EventCache.LOG.debug("CHANNEL_DELETE attempted to delete a category channel that is not yet cached. JSON: {}", content);
return null;
}
guild.getCategoriesMap().remove(channelId);
api.getEventManager().handle(
new CategoryDeleteEvent(
api, responseNumber,
category));
break;
}
case PRIVATE:
{
PrivateChannel channel = api.getPrivateChannelMap().remove(channelId);
if (channel == null)
channel = api.getFakePrivateChannelMap().remove(channelId);
if (channel == null)
{
api.getEventCache().cache(EventCache.Type.CHANNEL, channelId, () -> handle(responseNumber, allContent));
EventCache.LOG.debug("CHANNEL_DELETE attempted to delete a private channel that is not yet cached. JSON: {}", content);
return null;
}
if (channel.getUser().isFake())
api.getFakeUserMap().remove(channel.getUser().getIdLong());
((UserImpl) channel.getUser()).setPrivateChannel(null);
api.getEventManager().handle(
new PrivateChannelDeleteEvent(
api, responseNumber,
channel));
break;
}
case GROUP:
{
//TODO: close call on group leave (kill audio manager)
final long groupId = content.getLong("id");
GroupImpl group = (GroupImpl) api.asClient().getGroupMap().remove(groupId);
if (group == null)
{
api.getEventCache().cache(EventCache.Type.CHANNEL, channelId, () -> handle(responseNumber, allContent));
EventCache.LOG.debug("CHANNEL_DELETE attempted to delete a group that is not yet cached. JSON: {}", content);
return null;
}
group.getUserMap().forEachEntry((userId, user) ->
{
//User is fake, has no privateChannel, is not in a relationship, and is not in any other groups
// then we remove the fake user from the fake cache as it was only in this group
//Note: we getGroups() which gets all groups, however we already removed the current group above.
if (user.isFake()
&& !user.hasPrivateChannel()
&& api.asClient().getRelationshipMap().get(userId) == null
&& api.asClient().getGroups().stream().noneMatch(g -> g.getUsers().contains(user)))
{
api.getFakeUserMap().remove(userId);
}
return true;
});
api.getEventManager().handle(
new GroupLeaveEvent(
api, responseNumber,
group));
break;
}
default:
throw new IllegalArgumentException("CHANNEL_DELETE provided an unknown channel type. JSON: " + content);
}
api.getEventCache().clear(EventCache.Type.CHANNEL, channelId);
return null;
}
}