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.nacos.istio.api;
  
  import com.alibaba.nacos.istio.mcp.EmptyMcpGenerator;
  import com.alibaba.nacos.istio.mcp.ServiceEntryMcpGenerator;
  import com.alibaba.nacos.istio.xds.CdsGenerator;
  import com.alibaba.nacos.istio.xds.EdsGenerator;
  import com.alibaba.nacos.istio.xds.EmptyXdsGenerator;
  import com.alibaba.nacos.istio.xds.LdsGenerator;
  import com.alibaba.nacos.istio.xds.RdsGenerator;
  import com.alibaba.nacos.istio.xds.ServiceEntryXdsGenerator;
  import org.springframework.stereotype.Component;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import static com.alibaba.nacos.istio.api.ApiConstants.*;
  
  /**
   * @author special.fy
   */
  @Component
  public class ApiGeneratorFactory {
  
      private final Map<String, ApiGenerator<?>> apiGeneratorMap;
  
      public ApiGeneratorFactory() {
          apiGeneratorMap = new HashMap<>(2);
          // mcp over xds
          apiGeneratorMap.put(SERVICE_ENTRY_PROTO_PACKAGE, ServiceEntryXdsGenerator.getInstance());
          // TODO Support other api generator
  
          //xds
          apiGeneratorMap.put(CLUSTER_TYPE, CdsGenerator.getInstance());
          apiGeneratorMap.put(ENDPOINT_TYPE, EdsGenerator.getInstance());
          apiGeneratorMap.put(LISTENER_TYPE, LdsGenerator.getInstance());
          apiGeneratorMap.put(ROUTE_TYPE, RdsGenerator.getInstance());
          
          // mcp
          apiGeneratorMap.put(SERVICE_ENTRY_COLLECTION, ServiceEntryMcpGenerator.getInstance());
      }
  
      public ApiGenerator<?> getApiGenerator(String typeUrl) {
          ApiGenerator<?> apiGenerator = apiGeneratorMap.get(typeUrl);
          return apiGenerator != null ? apiGenerator :
                  (typeUrl.startsWith(MCP_PREFIX) ? EmptyMcpGenerator.getInstance() : EmptyXdsGenerator.getInstance());
      }
  }
  