content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.csp.sentinel.dashboard.repository.rule;
  
  import java.util.concurrent.atomic.AtomicLong;
  
  import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity;
  import com.alibaba.csp.sentinel.slots.block.flow.ClusterFlowConfig;
  
  import org.springframework.stereotype.Component;
  
  /**
   * Store {@link FlowRuleEntity} in memory.
   *
   * @author leyou
   */
  @Component
  public class InMemFlowRuleStore extends InMemoryRuleRepositoryAdapter<FlowRuleEntity> {
  
      private static AtomicLong ids = new AtomicLong(0);
  
      @Override
      protected long nextId() {
          return ids.incrementAndGet();
      }
  
      @Override
      protected FlowRuleEntity preProcess(FlowRuleEntity entity) {
          if (entity != null && entity.isClusterMode()) {
              ClusterFlowConfig config = entity.getClusterConfig();
              if (config == null) {
                  config = new ClusterFlowConfig();
                  entity.setClusterConfig(config);
              }
              // Set cluster rule id.
              config.setFlowId(entity.getId());
          }
          return entity;
      }
  }
  