kafka.admin.BrokerApiVersionsCommand.scala 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 kafka.admin
import java.io.PrintStream
import java.util.Properties
import kafka.utils.{CommandDefaultOptions, CommandLineUtils}
import org.apache.kafka.clients.CommonClientConfigs
import org.apache.kafka.common.utils.Utils
import scala.util.{Failure, Success}
/**
* A command for retrieving broker version information.
*/
object BrokerApiVersionsCommand {
def main(args: Array[String]): Unit = {
execute(args, System.out)
}
def execute(args: Array[String], out: PrintStream): Unit = {
val opts = new BrokerVersionCommandOptions(args)
val adminClient = createAdminClient(opts)
adminClient.awaitBrokers()
val brokerMap = adminClient.listAllBrokerVersionInfo()
brokerMap.foreach { case (broker, versionInfoOrError) =>
versionInfoOrError match {
case Success(v) => out.print(s"${broker} -> ${v.toString(true)}\n")
case Failure(v) => out.print(s"${broker} -> ERROR: ${v}\n")
}
}
adminClient.close()
}
private def createAdminClient(opts: BrokerVersionCommandOptions): AdminClient = {
val props = if (opts.options.has(opts.commandConfigOpt))
Utils.loadProps(opts.options.valueOf(opts.commandConfigOpt))
else
new Properties()
props.put(CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG, opts.options.valueOf(opts.bootstrapServerOpt))
AdminClient.create(props)
}
class BrokerVersionCommandOptions(args: Array[String]) extends CommandDefaultOptions(args) {
val BootstrapServerDoc = "REQUIRED: The server to connect to."
val CommandConfigDoc = "A property file containing configs to be passed to Admin Client."
val commandConfigOpt = parser.accepts("command-config", CommandConfigDoc)
.withRequiredArg
.describedAs("command config property file")
.ofType(classOf[String])
val bootstrapServerOpt = parser.accepts("bootstrap-server", BootstrapServerDoc)
.withRequiredArg
.describedAs("server(s) to use for bootstrapping")
.ofType(classOf[String])
options = parser.parse(args : _*)
checkArgs()
def checkArgs() {
CommandLineUtils.printHelpAndExitIfNeeded(this, "This tool helps to retrieve broker version information.")
// check required args
CommandLineUtils.checkRequiredArgs(parser, options, bootstrapServerOpt)
}
}
}