/*
 * 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.kyuubi.ctl.cmd.list

import org.apache.kyuubi.ctl.opt.CliConfig
import org.apache.kyuubi.ctl.util.CtlUtils
import org.apache.kyuubi.ha.client.ServiceNodeInfo

class ListEngineCommand(cliConfig: CliConfig) extends ListCommand(cliConfig) {

  override def validate(): Unit = {
    super.validate()

    // validate user
    if (normalizedCliConfig.engineOpts.user == null) {
      fail("Must specify user name for engine, please use -u or --user.")
    }
  }

  override def doRun(): Seq[ServiceNodeInfo] =
    CtlUtils.listZkEngineNodes(conf, normalizedCliConfig, None)
}
