content: /*
   * Copyright [2021-present] [ahoo wang <ahoowang@qq.com> (https://github.com/Ahoo-Wang)].
   * Licensed 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 me.ahoo.cosid.proxy.server.controller;
  
  import me.ahoo.cosid.machine.InstanceId;
  import me.ahoo.cosid.machine.MachineIdDistributor;
  import me.ahoo.cosid.machine.MachineIdLostException;
  import me.ahoo.cosid.machine.MachineIdOverflowException;
  import me.ahoo.cosid.machine.MachineState;
  import me.ahoo.cosid.proxy.api.MachineApi;
  
  import io.swagger.v3.oas.annotations.Operation;
  import org.springframework.web.bind.annotation.PathVariable;
  import org.springframework.web.bind.annotation.RestController;
  
  import java.time.Duration;
  
  /**
   * Machine resource controller .
   * Used for snowflake algorithm machine number distribution.
   *
   * @author ahoo wang
   */
  @RestController
  public class MachineController implements MachineApi {
      private final MachineIdDistributor distributor;
  
      public MachineController(MachineIdDistributor distributor) {
          this.distributor = distributor;
      }
  
      /**
       * Distribute a machine ID, the operation is idempotent.
       */
      @Override
      @Operation(summary = "Distribute a machine ID, the operation is idempotent.")
      public MachineState distribute(@PathVariable String namespace, int machineBit, String instanceId, boolean stable, String safeGuardDuration) throws MachineIdOverflowException {
          return distributor.distribute(namespace, machineBit, new InstanceId(instanceId, stable), Duration.parse(safeGuardDuration));
      }
  
      /**
       * Revert a machine ID, the operation is idempotent.
       */
      @Override
      @Operation(summary = "Revert a machine ID, the operation is idempotent.")
      public void revert(@PathVariable String namespace, String instanceId, boolean stable) {
          distributor.revert(namespace, new InstanceId(instanceId, stable));
      }
  
      /**
       * Guard a machine ID.
       */
      @Override
      @Operation(summary = "Guard a machine ID.")
      public void guard(@PathVariable String namespace, String instanceId, boolean stable, String safeGuardDuration) throws MachineIdLostException {
          distributor.guard(namespace, new InstanceId(instanceId, stable), Duration.parse(safeGuardDuration));
      }
  }
  