org.springframework.kafka.core.KafkaResourceFactory Maven / Gradle / Ivy
/*
* Copyright 2020 the original author or authors.
*
* 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
*
* https://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.springframework.kafka.core;
import java.util.Map;
import java.util.function.Supplier;
import org.apache.kafka.clients.CommonClientConfigs;
import org.springframework.lang.Nullable;
/**
* Base class for consumer/producer/admin creators.
*
* @author Gary Russell
* @since 2.5
*
*/
public abstract class KafkaResourceFactory {
private Supplier bootstrapServersSupplier;
@Nullable
protected String getBootstrapServers() {
return this.bootstrapServersSupplier == null ? null : this.bootstrapServersSupplier.get();
}
/**
* Set a supplier for the bootstrap server list to override any configured in a
* subclass.
* @param bootstrapServersSupplier the supplier.
*/
public void setBootstrapServersSupplier(Supplier bootstrapServersSupplier) {
this.bootstrapServersSupplier = bootstrapServersSupplier;
}
/**
* Enhance the properties by calling the
* {@link #setBootstrapServersSupplier(Supplier)} amd replace the bootstrap servers
* properties.
* @param configs the configs.
*/
protected void checkBootstrap(Map configs) {
String bootstrapServers = getBootstrapServers();
if (bootstrapServers != null) {
configs.put(CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
}
}
}