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RateLimiter.java
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RateLimiter.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;
import net.dv8tion.jda.core.requests.ratelimit.IBucket;
import net.dv8tion.jda.core.utils.JDALogger;
import org.slf4j.Logger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentLinkedQueue;
public abstract class RateLimiter
{
//Implementations of this class exist in the net.dv8tion.jda.core.requests.ratelimit package.
protected static final Logger log = JDALogger.getLog(RateLimiter.class);
protected final Requester requester;
protected volatile boolean isShutdown = false;
protected final ConcurrentHashMap<String, IBucket> buckets = new ConcurrentHashMap<>();
protected final ConcurrentLinkedQueue<IBucket> submittedBuckets = new ConcurrentLinkedQueue<>();
protected RateLimiter(Requester requester)
{
this.requester = requester;
}
protected boolean isSkipped(Iterator<Request> it, Request request)
{
try
{
if (request.isCanceled() || !request.runChecks())
{
cancel(it, request, new CancellationException("RestAction has been cancelled"));
return true;
}
}
catch (Throwable exception)
{
cancel(it, request, exception);
return true;
}
return false;
}
private void cancel(Iterator<Request> it, Request request, Throwable exception)
{
request.onFailure(exception);
it.remove();
}
// -- Required Implementations --
public abstract Long getRateLimit(Route.CompiledRoute route);
protected abstract void queueRequest(Request request);
protected abstract Long handleResponse(Route.CompiledRoute route, okhttp3.Response response);
// --- Default Implementations --
public boolean isRateLimited(Route.CompiledRoute route)
{
return getRateLimit(route) != null;
}
public List<IBucket> getRouteBuckets()
{
synchronized (buckets)
{
return Collections.unmodifiableList(new ArrayList<>(buckets.values()));
}
}
public List<IBucket> getQueuedRouteBuckets()
{
synchronized (submittedBuckets)
{
return Collections.unmodifiableList(new ArrayList<>(submittedBuckets));
}
}
protected void shutdown()
{
isShutdown = true;
// pool.setKeepAliveTime(time, unit);
// pool.allowCoreThreadTimeOut(true);
}
}