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ReactionPaginationAction.java
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ReactionPaginationAction.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.requests.restaction.pagination;
import net.dv8tion.jda.core.entities.EntityBuilder;
import net.dv8tion.jda.core.entities.MessageReaction;
import net.dv8tion.jda.core.entities.User;
import net.dv8tion.jda.core.requests.Request;
import net.dv8tion.jda.core.requests.Response;
import net.dv8tion.jda.core.requests.Route;
import net.dv8tion.jda.core.utils.MiscUtil;
import org.json.JSONArray;
import org.json.JSONException;
import java.util.LinkedList;
import java.util.List;
/**
* {@link net.dv8tion.jda.core.requests.restaction.pagination.PaginationAction PaginationAction}
* that paginates the endpoint {@link net.dv8tion.jda.core.requests.Route.Messages#GET_REACTION_USERS Route.Messages.GET_REACTION_USERS}.
*
* <p><b>Must provide not-null {@link net.dv8tion.jda.core.entities.MessageReaction MessageReaction} to compile a valid
* pagination route.</b>
*
* <h2>Limits:</h2>
* Minimum - 1
* <br>Maximum - 100
*
* <h1>Example</h1>
* <pre><code>
* ReactionPaginationAction users = reaction.getUsers();
*
* {@literal Optional<User>} optUser = users.stream().skip(ThreadLocalRandom.current().nextInt(reaction.getCount())).findFirst();
* optUser.ifPresent( (user) {@literal ->} user.openPrivateChannel().queue(
* (channel) {@literal ->} channel.sendMessage("I see you reacted to my message :eyes:").queue()
* ));
* </code></pre>
*
* @since 3.1
*/
public class ReactionPaginationAction extends PaginationAction<User, ReactionPaginationAction>
{
protected final MessageReaction reaction;
/**
* Creates a new PaginationAction instance
*
* @param reaction
* The target {@link net.dv8tion.jda.core.entities.MessageReaction MessageReaction}
*/
public ReactionPaginationAction(MessageReaction reaction)
{
super(reaction.getJDA(), Route.Messages.GET_REACTION_USERS.compile(reaction.getChannel().getId(), reaction.getMessageId(), getCode(reaction)), 1, 100, 100);
this.reaction = reaction;
}
protected static String getCode(MessageReaction reaction)
{
MessageReaction.ReactionEmote emote = reaction.getReactionEmote();
return emote.isEmote()
? emote.getName() + ":" + emote.getId()
: MiscUtil.encodeUTF8(emote.getName());
}
/**
* The current target {@link net.dv8tion.jda.core.entities.MessageReaction MessageReaction}
*
* @return The current MessageReaction
*/
public MessageReaction getReaction()
{
return reaction;
}
@Override
protected Route.CompiledRoute finalizeRoute()
{
Route.CompiledRoute route = super.finalizeRoute();
String after = null;
String limit = String.valueOf(getLimit());
User last = this.last;
if (last != null)
after = last.getId();
route = route.withQueryParams("limit", limit);
if (after != null)
route = route.withQueryParams("after", after);
return route;
}
@Override
protected void handleResponse(Response response, Request<List<User>> request)
{
if (!response.isOk())
{
request.onFailure(response);
return;
}
final EntityBuilder builder = api.get().getEntityBuilder();
final JSONArray array = response.getArray();
final List<User> users = new LinkedList<>();
for (int i = 0; i < array.length(); i++)
{
try
{
final User user = builder.createFakeUser(array.getJSONObject(i), false);
users.add(user);
if (useCache)
cached.add(user);
last = user;
}
catch (JSONException | NullPointerException e)
{
LOG.warn("Encountered exception in ReactionPagination", e);
}
}
request.onSuccess(users);
}
}