/
QueueMessageReader.java
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/
QueueMessageReader.java
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/*
* Copyright (C) 2020 National Institute of Informatics
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 ssplugin;
import jp.ad.sinet.stream.api.Consistency;
import jp.ad.sinet.stream.api.SinetStreamIOException;
import jp.ad.sinet.stream.spi.PluginMessageReader;
import jp.ad.sinet.stream.spi.PluginMessageWrapper;
import jp.ad.sinet.stream.spi.ReaderParameters;
import java.time.Duration;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;
public class QueueMessageReader implements PluginMessageReader {
private final BlockingQueue<QueueMessage> queue;
private final List<String> topics;
private final Duration receiveTimeout;
private final Map<String, Object> config;
private final Consistency consistency;
private final String clientId;
public QueueMessageReader(ReaderParameters params, BlockingQueue<QueueMessage> queue) {
this.queue = queue;
this.topics = Collections.unmodifiableList(params.getTopics());
this.receiveTimeout = params.getReceiveTimeout();
this.config = Collections.unmodifiableMap(params.getConfig());
this.consistency = params.getConsistency();
this.clientId = params.getClientId();
}
@Override
public PluginMessageWrapper read() {
try {
return queue.poll(receiveTimeout.getSeconds(), TimeUnit.SECONDS);
} catch (InterruptedException e) {
throw new SinetStreamIOException(e);
}
}
@Override
public List<String> getTopics() {
return topics;
}
@Override
public Duration getReceiveTimeout() {
return receiveTimeout;
}
@Override
public void close() {
}
@Override
public Map<String, Object> getConfig() {
return config;
}
@Override
public Consistency getConsistency() {
return consistency;
}
@Override
public String getClientId() {
return clientId;
}
}