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.cluster.server.init;
  
  import com.alibaba.csp.sentinel.cluster.ClusterConstants;
  import com.alibaba.csp.sentinel.cluster.server.TokenServiceProvider;
  import com.alibaba.csp.sentinel.cluster.server.codec.data.FlowRequestDataDecoder;
  import com.alibaba.csp.sentinel.cluster.server.codec.data.FlowResponseDataWriter;
  import com.alibaba.csp.sentinel.cluster.server.codec.data.ParamFlowRequestDataDecoder;
  import com.alibaba.csp.sentinel.cluster.server.codec.data.PingRequestDataDecoder;
  import com.alibaba.csp.sentinel.cluster.server.codec.data.PingResponseDataWriter;
  import com.alibaba.csp.sentinel.cluster.server.codec.registry.RequestDataDecodeRegistry;
  import com.alibaba.csp.sentinel.cluster.server.codec.registry.ResponseDataWriterRegistry;
  import com.alibaba.csp.sentinel.cluster.server.processor.RequestProcessorProvider;
  import com.alibaba.csp.sentinel.init.InitFunc;
  import com.alibaba.csp.sentinel.log.RecordLog;
  
  /**
   * @author Eric Zhao
   * @since 1.4.0
   */
  public class DefaultClusterServerInitFunc implements InitFunc {
  
      @Override
      public void init() throws Exception {
          initDefaultEntityDecoders();
          initDefaultEntityWriters();
  
          initDefaultProcessors();
  
          // Eagerly-trigger the SPI pre-load of token service.
          TokenServiceProvider.getService();
  
          RecordLog.info("[DefaultClusterServerInitFunc] Default entity codec and processors registered");
      }
  
      private void initDefaultEntityWriters() {
          ResponseDataWriterRegistry.addWriter(ClusterConstants.MSG_TYPE_PING, new PingResponseDataWriter());
          ResponseDataWriterRegistry.addWriter(ClusterConstants.MSG_TYPE_FLOW, new FlowResponseDataWriter());
          ResponseDataWriterRegistry.addWriter(ClusterConstants.MSG_TYPE_PARAM_FLOW, new FlowResponseDataWriter());
      }
  
      private void initDefaultEntityDecoders() {
          RequestDataDecodeRegistry.addDecoder(ClusterConstants.MSG_TYPE_PING, new PingRequestDataDecoder());
          RequestDataDecodeRegistry.addDecoder(ClusterConstants.MSG_TYPE_FLOW, new FlowRequestDataDecoder());
          RequestDataDecodeRegistry.addDecoder(ClusterConstants.MSG_TYPE_PARAM_FLOW, new ParamFlowRequestDataDecoder());
      }
  
      private void initDefaultProcessors() {
          // Eagerly-trigger the SPI pre-load.
          RequestProcessorProvider.getProcessor(0);
      }
  }
  