org.apache.rocketmq.client.java.impl.producer.ProducerBuilderImpl Maven / Gradle / Ivy
/*
* 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 org.apache.rocketmq.client.java.impl.producer;
import static org.apache.rocketmq.shaded.com.google.common.base.Preconditions.checkArgument;
import static org.apache.rocketmq.shaded.com.google.common.base.Preconditions.checkNotNull;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Collectors;
import org.apache.rocketmq.client.apis.ClientConfiguration;
import org.apache.rocketmq.client.apis.producer.Producer;
import org.apache.rocketmq.client.apis.producer.ProducerBuilder;
import org.apache.rocketmq.client.apis.producer.TransactionChecker;
import org.apache.rocketmq.client.java.message.MessageBuilderImpl;
/**
* Implementation of {@link ProducerBuilder}
*/
public class ProducerBuilderImpl implements ProducerBuilder {
private ClientConfiguration clientConfiguration = null;
private final Set topics = new HashSet<>();
private int maxAttempts = 3;
private TransactionChecker checker = null;
public ProducerBuilderImpl() {
}
/**
* @see ProducerBuilder#setClientConfiguration(ClientConfiguration)
*/
@Override
public ProducerBuilder setClientConfiguration(ClientConfiguration clientConfiguration) {
this.clientConfiguration = checkNotNull(clientConfiguration, "clientConfiguration should not be null");
return this;
}
/**
* @see ProducerBuilder#setTopics(String...)
*/
@Override
public ProducerBuilder setTopics(String... topics) {
final Set set = Arrays.stream(topics).peek(topic -> checkNotNull(topic, "topic should not be null"))
.peek(topic -> checkArgument(MessageBuilderImpl.TOPIC_PATTERN.matcher(topic).matches(), "topic does not "
+ "match the regex [regex=%s]", MessageBuilderImpl.TOPIC_PATTERN.pattern()))
.collect(Collectors.toSet());
this.topics.addAll(set);
return this;
}
/**
* @see ProducerBuilder#setMaxAttempts(int)
*/
@Override
public ProducerBuilder setMaxAttempts(int maxAttempts) {
checkArgument(maxAttempts > 0, "maxAttempts should be positive");
this.maxAttempts = maxAttempts;
return this;
}
/**
* @see ProducerBuilder#setTransactionChecker(TransactionChecker)
*/
@Override
public ProducerBuilder setTransactionChecker(TransactionChecker checker) {
this.checker = checkNotNull(checker, "checker should not set null");
return this;
}
/**
* @see ProducerBuilder#build()
*/
@Override
public Producer build() {
checkNotNull(clientConfiguration, "clientConfiguration has not been set yet");
final ProducerImpl producer = new ProducerImpl(clientConfiguration, topics, maxAttempts, checker);
producer.startAsync().awaitRunning();
return producer;
}
}