using System;
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using System.Collections;
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using System.Collections.Generic;
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namespace Top.Api.Parser
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{
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/// <summary>
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/// TOP JSON响应通用读取器。
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/// </summary>
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public class TopJsonReader : ITopReader
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{
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private IDictionary json;
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public TopJsonReader(IDictionary json)
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{
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this.json = json;
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}
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public bool HasReturnField(object name)
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{
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return json.Contains(name);
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}
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public object GetPrimitiveObject(object name)
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{
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return json[name];
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}
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public object GetReferenceObject(object name, Type type, DTopConvert convert)
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{
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IDictionary dict = json[name] as IDictionary;
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if (dict != null && dict.Count > 0)
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{
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return convert(new TopJsonReader(dict), type);
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}
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else
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{
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return null;
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}
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}
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public IList GetListObjects(string listName, string itemName, Type type, DTopConvert convert)
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{
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IList listObjs = null;
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IDictionary jsonMap = json[listName] as IDictionary;
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if (jsonMap != null && jsonMap.Count > 0)
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{
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IList jsonList = jsonMap[itemName] as IList;
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if (jsonList != null && jsonList.Count > 0)
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{
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Type listType = typeof(List<>).MakeGenericType(new Type[] { type });
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listObjs = Activator.CreateInstance(listType) as IList;
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foreach (object item in jsonList)
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{
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if (typeof(IDictionary).IsAssignableFrom(item.GetType())) // object
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{
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IDictionary subMap = item as IDictionary;
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object subObj = convert(new TopJsonReader(subMap), type);
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if (subObj != null)
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{
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listObjs.Add(subObj);
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}
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}
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else if (typeof(IList).IsAssignableFrom(item.GetType())) // list or array
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{
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// TODO not support yet
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}
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else // string, bool, long, double, null, other
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{
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listObjs.Add(item);
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}
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}
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}
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}
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return listObjs;
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}
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}
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}
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