code: /*
   * 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.skywalking.oap.server.receiver.zabbix.provider.protocol.bean;
  
  import com.google.gson.JsonDeserializationContext;
  import com.google.gson.JsonDeserializer;
  import com.google.gson.JsonElement;
  import com.google.gson.JsonParseException;
  import com.google.gson.reflect.TypeToken;
  
  import java.lang.reflect.Type;
  import java.util.List;
  
  /**
   * Deserialize request from the Zabbix
   */
  public class ZabbixRequestJsonDeserializer implements JsonDeserializer<ZabbixRequest> {
      @Override
      public ZabbixRequest deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
          String requestTypeString = json.getAsJsonObject().get("request").getAsString();
  
          // Check has support request type
          ZabbixProtocolType requestType = ZabbixProtocolType.parse(requestTypeString);
          if (requestType == null) {
              throw new JsonParseException("Current request type is not support:" + requestTypeString);
          }
  
          // Build data
          ZabbixRequest data = new ZabbixRequest();
          data.setType(requestType);
  
          if (requestType == ZabbixProtocolType.AGENT_DATA) {
              data.setAgentDataList(context
                  .deserialize(json.getAsJsonObject().getAsJsonArray("data"),
                      new TypeToken<List<ZabbixRequest.AgentData>>() {
                      }.getType()));
          } else if (requestType == ZabbixProtocolType.ACTIVE_CHECKS) {
              ZabbixRequest.ActiveChecks checksData = new ZabbixRequest.ActiveChecks();
              checksData.setHostName(json.getAsJsonObject().get("host").getAsString());
              data.setActiveChecks(checksData);
          }
  
          return data;
      }
  }
  