dev.responsive.kafka.internal.stores.ResponsiveStoreRegistration Maven / Gradle / Ivy
/*
* Copyright 2023 Responsive Computing, Inc.
*
* 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
*
* 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 dev.responsive.kafka.internal.stores;
import com.datastax.oss.driver.shaded.guava.common.annotations.VisibleForTesting;
import java.util.Objects;
import java.util.OptionalLong;
import java.util.function.Consumer;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.common.utils.LogContext;
import org.slf4j.Logger;
public final class ResponsiveStoreRegistration {
public static final long NO_COMMITTED_OFFSET = -1L; // buffer is initialized but no prior offset
private final Logger log;
private final String storeName;
private final TopicPartition changelogTopicPartition;
private final Consumer onCommit;
private final String threadId;
private final InjectedStoreArgs injectedStoreArgs = new InjectedStoreArgs();
private final OptionalLong startOffset; // stored offset during init, (where restore should start)
@VisibleForTesting
public ResponsiveStoreRegistration(
final String storeName,
final TopicPartition changelogTopicPartition,
final OptionalLong startOffset,
final Consumer onCommit,
final String threadId
) {
this.storeName = Objects.requireNonNull(storeName);
this.changelogTopicPartition = Objects.requireNonNull(changelogTopicPartition);
this.startOffset = startOffset;
this.onCommit = Objects.requireNonNull(onCommit);
this.threadId = Objects.requireNonNull(threadId);
this.log = new LogContext(
String.format("changelog [%s]", changelogTopicPartition)
).logger(ResponsiveStoreRegistration.class);
log.debug("Created store registration with stored offset={}", startOffset);
}
public OptionalLong startOffset() {
return startOffset;
}
public TopicPartition changelogTopicPartition() {
return changelogTopicPartition;
}
public String storeName() {
return storeName;
}
public Consumer onCommit() {
return onCommit;
}
public InjectedStoreArgs injectedStoreArgs() {
return injectedStoreArgs;
}
public String threadId() {
return threadId;
}
}