io.micronaut.pulsar.processor.DefaultTopicResolver Maven / Gradle / Ivy
/*
* Copyright 2017-2022 original 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 io.micronaut.pulsar.processor;
import io.micronaut.core.annotation.Internal;
import io.micronaut.messaging.exceptions.MessageListenerException;
import io.micronaut.pulsar.config.PulsarClientConfiguration;
import jakarta.inject.Singleton;
/**
* Resolve topic name to same value as input if tenant is hardcoded. Otherwise check for ${tenant} and default tenant
* name specified in the configuration; if present resolve to that value; otherwise throw exception.
*
* @author Haris
* @since 1.2.0
*/
@Internal
@Singleton
final class DefaultTopicResolver implements TopicResolver {
private final String defaultTenant;
DefaultTopicResolver(final PulsarClientConfiguration pulsarClientConfiguration) {
defaultTenant = pulsarClientConfiguration.getDefaultTenant().orElse(null);
}
@Override
public String resolve(final String topic) {
if (TopicResolver.isDynamicTenantInTopic(topic)) {
if (null == defaultTenant) {
throw new MessageListenerException(String.format(
"Consumer specified dynamic tenant name in topic %s but no default tenant name set in the configuration",
topic));
}
return TopicResolver.replaceTenantInTopic(topic, defaultTenant);
}
return topic;
}
}
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