samza-kafka/src/main/scala/org/apache/samza/util/KafkaUtil.scala

/*
 * 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.samza.util

import org.apache.samza.config.{KafkaConfig, Config, ConfigException}
import org.apache.samza.config.JobConfig.Config2Job
import java.util.concurrent.atomic.AtomicLong
import kafka.client.ClientUtils
import org.apache.samza.SamzaException

object KafkaUtil {
  val counter = new AtomicLong(0)

  def getClientId(id: String, config: Config): String = getClientId(
    id,
    config.getName.getOrElse(throw new ConfigException("Missing job name.")),
    config.getJobId.getOrElse("1"))

  def getClientId(id: String, jobName: String, jobId: String): String =
    "%s-%s-%s-%s-%s" format
      (id.replaceAll("[^A-Za-z0-9]", "_"),
        jobName.replaceAll("[^A-Za-z0-9]", "_"),
        jobId.replaceAll("[^A-Za-z0-9]", "_"),
        System.currentTimeMillis,
        counter.getAndIncrement)

}