forked from apache/kafka
/
ApiVersionManager.scala
115 lines (103 loc) · 3.98 KB
/
ApiVersionManager.scala
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/*
* 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 kafka.server
import kafka.network
import kafka.network.RequestChannel
import org.apache.kafka.common.feature.{Features, SupportedVersionRange}
import org.apache.kafka.common.message.ApiMessageType.ListenerType
import org.apache.kafka.common.protocol.ApiKeys
import org.apache.kafka.common.requests.ApiVersionsResponse
import scala.jdk.CollectionConverters._
trait ApiVersionManager {
def enableUnstableLastVersion: Boolean
def listenerType: ListenerType
def enabledApis: collection.Set[ApiKeys]
def apiVersionResponse(throttleTimeMs: Int): ApiVersionsResponse
def isApiEnabled(apiKey: ApiKeys, apiVersion: Short): Boolean = {
apiKey != null && apiKey.inScope(listenerType) && apiKey.isVersionEnabled(apiVersion, enableUnstableLastVersion)
}
def newRequestMetrics: RequestChannel.Metrics = new network.RequestChannel.Metrics(enabledApis)
}
object ApiVersionManager {
def apply(
listenerType: ListenerType,
config: KafkaConfig,
forwardingManager: Option[ForwardingManager],
supportedFeatures: BrokerFeatures,
metadataCache: MetadataCache
): ApiVersionManager = {
new DefaultApiVersionManager(
listenerType,
forwardingManager,
supportedFeatures,
metadataCache,
config.unstableApiVersionsEnabled,
config.migrationEnabled
)
}
}
class SimpleApiVersionManager(
val listenerType: ListenerType,
val enabledApis: collection.Set[ApiKeys],
brokerFeatures: Features[SupportedVersionRange],
val enableUnstableLastVersion: Boolean,
val zkMigrationEnabled: Boolean
) extends ApiVersionManager {
def this(
listenerType: ListenerType,
enableUnstableLastVersion: Boolean,
zkMigrationEnabled: Boolean
) = {
this(
listenerType,
ApiKeys.apisForListener(listenerType).asScala,
BrokerFeatures.defaultSupportedFeatures(),
enableUnstableLastVersion,
zkMigrationEnabled
)
}
private val apiVersions = ApiVersionsResponse.collectApis(enabledApis.asJava, enableUnstableLastVersion)
override def apiVersionResponse(requestThrottleMs: Int): ApiVersionsResponse = {
ApiVersionsResponse.createApiVersionsResponse(requestThrottleMs, apiVersions, brokerFeatures, zkMigrationEnabled)
}
}
class DefaultApiVersionManager(
val listenerType: ListenerType,
forwardingManager: Option[ForwardingManager],
features: BrokerFeatures,
metadataCache: MetadataCache,
val enableUnstableLastVersion: Boolean,
val zkMigrationEnabled: Boolean = false
) extends ApiVersionManager {
val enabledApis = ApiKeys.apisForListener(listenerType).asScala
override def apiVersionResponse(throttleTimeMs: Int): ApiVersionsResponse = {
val supportedFeatures = features.supportedFeatures
val finalizedFeatures = metadataCache.features()
val controllerApiVersions = forwardingManager.flatMap(_.controllerApiVersions)
ApiVersionsResponse.createApiVersionsResponse(
throttleTimeMs,
metadataCache.metadataVersion().highestSupportedRecordVersion,
supportedFeatures,
finalizedFeatures.features.map(kv => (kv._1, kv._2.asInstanceOf[java.lang.Short])).asJava,
finalizedFeatures.epoch,
controllerApiVersions.orNull,
listenerType,
enableUnstableLastVersion,
zkMigrationEnabled
)
}
}