org.apache.kafka.streams.processor.internals.UnwindowedUnversionedChangelogTopicConfig 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.kafka.streams.processor.internals;
import org.apache.kafka.common.config.TopicConfig;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
/**
* UnwindowedUnversionedChangelogTopicConfig captures the properties required for configuring
* the un-windowed, un-versioned store changelog topics.
*/
public class UnwindowedUnversionedChangelogTopicConfig extends InternalTopicConfig {
private static final Map UNWINDOWED_STORE_CHANGELOG_TOPIC_DEFAULT_OVERRIDES;
static {
final Map tempTopicDefaultOverrides = new HashMap<>(INTERNAL_TOPIC_DEFAULT_OVERRIDES);
tempTopicDefaultOverrides.put(TopicConfig.CLEANUP_POLICY_CONFIG, TopicConfig.CLEANUP_POLICY_COMPACT);
UNWINDOWED_STORE_CHANGELOG_TOPIC_DEFAULT_OVERRIDES = Collections.unmodifiableMap(tempTopicDefaultOverrides);
}
UnwindowedUnversionedChangelogTopicConfig(final String name, final Map topicConfigs) {
super(name, topicConfigs);
}
/**
* Get the configured properties for this topic. If retentionMs is set then
* we add additionalRetentionMs to work out the desired retention when cleanup.policy=compact,delete
*
* @param additionalRetentionMs - added to retention to allow for clock drift etc
* @return Properties to be used when creating the topic
*/
@Override
public Map getProperties(final Map defaultProperties, final long additionalRetentionMs) {
// internal topic config overridden rule: library overrides < global config overrides < per-topic config overrides
final Map topicConfig = new HashMap<>(UNWINDOWED_STORE_CHANGELOG_TOPIC_DEFAULT_OVERRIDES);
topicConfig.putAll(defaultProperties);
topicConfig.putAll(topicConfigs);
return topicConfig;
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final UnwindowedUnversionedChangelogTopicConfig that = (UnwindowedUnversionedChangelogTopicConfig) o;
return Objects.equals(name, that.name) &&
Objects.equals(topicConfigs, that.topicConfigs) &&
Objects.equals(enforceNumberOfPartitions, that.enforceNumberOfPartitions);
}
@Override
public int hashCode() {
return Objects.hash(name, topicConfigs, enforceNumberOfPartitions);
}
@Override
public String toString() {
return "UnwindowedUnversionedChangelogTopicConfig(" +
"name=" + name +
", topicConfigs=" + topicConfigs +
", enforceNumberOfPartitions=" + enforceNumberOfPartitions +
")";
}
}