ViacheslavKlimov
2 years ago
8 changed files with 15 additions and 123 deletions
@ -1,109 +0,0 @@ |
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/** |
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* Copyright © 2016-2024 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.service.queue.consumer; |
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import lombok.Builder; |
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import lombok.Getter; |
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import lombok.extern.slf4j.Slf4j; |
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import org.thingsboard.common.util.ThingsBoardThreadFactory; |
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import org.thingsboard.server.common.msg.queue.TopicPartitionInfo; |
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import org.thingsboard.server.queue.TbQueueConsumer; |
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import org.thingsboard.server.queue.TbQueueMsg; |
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import java.util.List; |
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import java.util.Set; |
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import java.util.concurrent.ExecutorService; |
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import java.util.function.Supplier; |
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@Slf4j |
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public class QueueConsumerManager<M extends TbQueueMsg> { |
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private final String name; |
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private final MsgPackProcessor<M> msgPackProcessor; |
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private final long pollInterval; |
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private final ExecutorService consumerExecutor; |
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private final String threadPrefix; |
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@Getter |
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private final TbQueueConsumer<M> consumer; |
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private volatile boolean stopped; |
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@Builder |
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public QueueConsumerManager(String name, MsgPackProcessor<M> msgPackProcessor, |
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long pollInterval, Supplier<TbQueueConsumer<M>> consumerCreator, |
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ExecutorService consumerExecutor, String threadPrefix) { |
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this.name = name; |
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this.pollInterval = pollInterval; |
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this.msgPackProcessor = msgPackProcessor; |
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this.consumerExecutor = consumerExecutor; |
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this.threadPrefix = threadPrefix; |
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this.consumer = consumerCreator.get(); |
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} |
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public void subscribe() { |
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consumer.subscribe(); |
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} |
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public void subscribe(Set<TopicPartitionInfo> partitions) { |
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consumer.subscribe(partitions); |
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} |
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public void launch() { |
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log.info("[{}] Launching consumer", name); |
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consumerExecutor.submit(() -> { |
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if (threadPrefix != null) { |
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ThingsBoardThreadFactory.addThreadNamePrefix(threadPrefix); |
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} |
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try { |
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consumerLoop(consumer); |
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} catch (Throwable e) { |
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log.error("Failure in consumer loop", e); |
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} |
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log.info("[{}] Consumer stopped", name); |
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}); |
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} |
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private void consumerLoop(TbQueueConsumer<M> consumer) { |
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while (!stopped && !consumer.isStopped()) { |
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try { |
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List<M> msgs = consumer.poll(pollInterval); |
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if (msgs.isEmpty()) { |
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continue; |
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} |
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msgPackProcessor.process(msgs, consumer); |
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} catch (Exception e) { |
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if (!consumer.isStopped()) { |
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log.warn("Failed to process messages from queue", e); |
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try { |
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Thread.sleep(pollInterval); |
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} catch (InterruptedException interruptedException) { |
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log.trace("Failed to wait until the server has capacity to handle new requests", interruptedException); |
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} |
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} |
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} |
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} |
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} |
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public void stop() { |
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log.debug("[{}] Stopping consumer", name); |
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stopped = true; |
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consumer.unsubscribe(); |
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} |
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public interface MsgPackProcessor<M extends TbQueueMsg> { |
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void process(List<M> msgs, TbQueueConsumer<M> consumer) throws Exception; |
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} |
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} |
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