net.dv8tion.jda.core.handle.GuildMembersChunkHandler.java Source code

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Here is the source code for net.dv8tion.jda.core.handle.GuildMembersChunkHandler.java

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/*
 *     Copyright 2015-2017 Austin Keener & Michael Ritter & Florian Spie
 *
 * 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 gnu.trove.map.TLongIntMap;
import gnu.trove.map.TLongObjectMap;
import gnu.trove.map.hash.TLongIntHashMap;
import gnu.trove.map.hash.TLongObjectHashMap;
import net.dv8tion.jda.core.entities.impl.JDAImpl;
import org.json.JSONArray;
import org.json.JSONObject;

import java.util.LinkedList;
import java.util.List;

public class GuildMembersChunkHandler extends SocketHandler {
    private final TLongIntMap expectedGuildMembers = new TLongIntHashMap();
    private final TLongObjectMap<List<JSONArray>> memberChunksCache = new TLongObjectHashMap<>();

    public GuildMembersChunkHandler(JDAImpl api) {
        super(api);
    }

    @Override
    protected Long handleInternally(JSONObject content) {
        final long guildId = content.getLong("guild_id");
        List<JSONArray> memberChunks = memberChunksCache.get(guildId);
        int expectMemberCount = expectedGuildMembers.get(guildId);

        JSONArray members = content.getJSONArray("members");
        JDAImpl.LOG.debug("GUILD_MEMBER_CHUNK for: " + guildId + " \tMembers: " + members.length());
        memberChunks.add(members);

        int currentTotal = 0;
        for (JSONArray arr : memberChunks) {
            currentTotal += arr.length();
        }

        if (currentTotal >= expectMemberCount) {
            JDAImpl.LOG.debug("Finished chunking for: " + guildId);
            api.getEntityBuilder().createGuildSecondPass(guildId, memberChunks);
            memberChunksCache.remove(guildId);
            expectedGuildMembers.remove(guildId);
        }
        return null;
    }

    public void setExpectedGuildMembers(long guildId, int count) {
        if (expectedGuildMembers.containsKey(guildId))
            JDAImpl.LOG.warn(
                    "Set the count of expected users from GuildMembersChunk even though a value already exists! GuildId: "
                            + guildId);

        expectedGuildMembers.put(guildId, count);

        if (memberChunksCache.containsKey(guildId))
            JDAImpl.LOG.warn(
                    "Set the memberChunks for MemberChunking for a guild that was already setup for chunking! GuildId: "
                            + guildId);

        memberChunksCache.put(guildId, new LinkedList<>());
    }

    public void modifyExpectedGuildMember(long guildId, int changeAmount) {
        try {
            Integer i = expectedGuildMembers.get(guildId);
            i += changeAmount;
            expectedGuildMembers.put(guildId, i);
        }
        //Ignore. If one of the above things doesn't exist, causing an NPE, then we don't need to worry.
        catch (NullPointerException ignored) {
        }
    }

    public void clearCache() {
        expectedGuildMembers.clear();
        memberChunksCache.clear();
    }
}