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leancloud leanengine cloud function library

There is a newer version: 0.4.1

package cn.leancloud;

import com.alibaba.fastjson.JSON;
import com.avos.avoscloud.AVObject;
import com.avos.avoscloud.AVUser;
import com.avos.avoscloud.AVUtils;

import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class EngineHookHandlerInfo extends EngineHandlerInfo {

  public EngineHookHandlerInfo(String endpoint, Method handlerMethod,
                               List params, Class returnType, String hookKey, String hookClass) {
    super(endpoint, handlerMethod, params, returnType, hookKey, hookClass);
  }

  @Override
  public Object parseParams(String requestBody) {
    Map hookParams = JSON.parseObject(requestBody, Map.class);
    Map currentUser = (Map) hookParams.get("user");
    if (currentUser != null) {
      AVUser user = new AVUser();
      AVUtils.copyPropertiesFromMapToAVObject(currentUser, user);
      AVUser.changeCurrentUser(user, true);
    }
    AVObject param = null;
    EngineFunctionParamInfo paramInfo = methodParameterList.get(0);
    if (AVUser.class.isAssignableFrom(paramInfo.type)) {
      param = new AVUser();
    } else {
      param = AVUtils.newAVObjectByClassName(hookClass);
    }
    EngineRequestContext.parseMetaData((Map) hookParams.get(paramInfo.getName()));
    AVUtils.copyPropertiesFromMapToAVObject(
        (Map) hookParams.get(paramInfo.getName()), param);
    return param;
  }

  @Override
  public Object wrapperResponse(Object result, String requestBody, boolean rpcCall) {
    Map hookParams = new HashMap();
    if (result != null) {
      Map objectMapping =
          (Map) AVUtils.getParsedObject(result, true, true, false, true, true);
      objectMapping.remove("__type");
      objectMapping.remove("className");
      hookParams.putAll(objectMapping);
    }
    return hookParams;
  }

}