kafka.cluster.BrokerEndPoint.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.cluster
import java.nio.ByteBuffer
import kafka.api.ApiUtils._
import kafka.common.KafkaException
import org.apache.kafka.common.utils.Utils._
object BrokerEndPoint {
private val uriParseExp = """\[?([0-9a-zA-Z\-%.:]*)\]?:([0-9]+)""".r
/**
* BrokerEndPoint URI is host:port or [ipv6_host]:port
* Note that unlike EndPoint (or listener) this URI has no security information.
*/
def parseHostPort(connectionString: String): Option[(String, Int)] = {
connectionString match {
case uriParseExp(host, port) => try Some(host, port.toInt) catch { case e: NumberFormatException => None }
case _ => None
}
}
/**
* BrokerEndPoint URI is host:port or [ipv6_host]:port
* Note that unlike EndPoint (or listener) this URI has no security information.
*/
def createBrokerEndPoint(brokerId: Int, connectionString: String): BrokerEndPoint = {
parseHostPort(connectionString).map { case (host, port) => new BrokerEndPoint(brokerId, host, port) }.getOrElse {
throw new KafkaException("Unable to parse " + connectionString + " to a broker endpoint")
}
}
def readFrom(buffer: ByteBuffer): BrokerEndPoint = {
val brokerId = buffer.getInt()
val host = readShortString(buffer)
val port = buffer.getInt()
BrokerEndPoint(brokerId, host, port)
}
}
/**
* BrokerEndpoint is used to connect to specific host:port pair.
* It is typically used by clients (or brokers when connecting to other brokers)
* and contains no information about the security protocol used on the connection.
* Clients should know which security protocol to use from configuration.
* This allows us to keep the wire protocol with the clients unchanged where the protocol is not needed.
*/
case class BrokerEndPoint(id: Int, host: String, port: Int) {
def connectionString(): String = formatAddress(host, port)
def writeTo(buffer: ByteBuffer): Unit = {
buffer.putInt(id)
writeShortString(buffer, host)
buffer.putInt(port)
}
def sizeInBytes: Int =
4 + /* broker Id */
4 + /* port */
shortStringLength(host)
}