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452 lines
20 KiB
452 lines
20 KiB
3 days ago
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// <auto-generated/>
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// ReSharper disable All
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// Disable StyleCop analysis for this file
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// <copyright file="TransformerService.cs" company="Manus">
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// Copyright (c) Manus. All rights reserved.
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// </copyright>
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3 days ago
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using medical.transfomer.dto;
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3 days ago
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text.Json;
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using System.Text.Json.Nodes;
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3 days ago
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namespace medical.insu.transfomer
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3 days ago
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{
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/// <summary>
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/// JSON配置转换服务类
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/// </summary>
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public class TransformerService
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{
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private readonly TransformationConfig _config;
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private readonly IValueConverter _valueConverter; // 用于字典转换等
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/// <summary>
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/// 构造函数
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/// </summary>
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/// <param name="configuration">转换配置</param>
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/// <param name="valueConverter">值转换器实例 (可选)</param>
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public TransformerService(TransformationConfig configuration, IValueConverter valueConverter = null)
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{
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_config = configuration ?? throw new ArgumentNullException(nameof(configuration));
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_valueConverter = valueConverter ?? new DefaultValueConverter(); // 提供一个默认实现
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}
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/// <summary>
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/// 从JSON字符串加载配置
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/// </summary>
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/// <param name="jsonConfig">包含配置的JSON字符串</param>
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/// <returns>TransformationConfig 实例</returns>
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public static TransformationConfig LoadConfigFromJson(string jsonConfig)
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{
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if (string.IsNullOrWhiteSpace(jsonConfig))
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{
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throw new ArgumentException("JSON configuration string cannot be null or empty.", nameof(jsonConfig));
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}
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try
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{
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return JsonSerializer.Deserialize<TransformationConfig>(jsonConfig, new JsonSerializerOptions
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{
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PropertyNameCaseInsensitive = true // 允许属性名不区分大小写
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});
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}
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catch (JsonException ex)
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{
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// 在实际应用中，这里应该记录更详细的错误日志
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throw new InvalidOperationException("Failed to deserialize JSON configuration.", ex);
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}
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}
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/// <summary>
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/// 将源数据对象根据指定方法转换为目标JSON字符串 (系统对象 -> 接口JSON)
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/// </summary>
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/// <param name="methodName">方法名称 (来自 method_config)</param>
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/// <param name="sourceObject">源数据对象 (通常是一个C#对象或字典)</param>
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/// <returns>转换后的JSON字符串</returns>
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public string Transform(string methodName, object sourceObject)
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{
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// 1. 查找方法配置
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var method = _config.MethodConfigs.FirstOrDefault(m => m.METHOD_NAME == methodName);
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if (method == null)
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{
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throw new ArgumentException($"Method '{methodName}' not found in configuration.", nameof(methodName));
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}
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// 2. 筛选出适用于当前方法和出参的组装规则 (parametr_type = 2 代表出参)
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var assemblyRules = _config.ObjectAssemblies
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.Where(a => a.METHOD_REF == method.METHOD_ID && a.PARAMETR_TYPE == 2 && a.ASSEMBLY_TYPE == "interface") // 假设是系统到接口的转换
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.OrderBy(a => a.OBJECT_PATH) // 排序以确保父节点先创建
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.ToList();
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if (!assemblyRules.Any())
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{
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// 如果没有找到针对出参的interface类型组装规则，可能需要抛出错误或返回空JSON
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// 根据实际需求，这里也可以查找 'sys' 类型的规则，取决于转换方向的定义
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Console.WriteLine($"Warning: No 'interface' assembly rules found for method '{methodName}' and parameter type 2 (output).");
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return "{}"; // 或者抛出异常
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}
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var rootNode = new JsonObject(); // 创建JSON根节点
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// 3. 遍历组装规则，构建JSON
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foreach (var rule in assemblyRules)
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{
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// 3.1 查找对应的映射规则 (通过MappingTable关联到ObjectMapping的ObjectTableName或MappingId)
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// 假设 MappingTable 直接对应 ObjectMapping 中的 ObjectTableName
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var mapping = _config.ObjectMappings.FirstOrDefault(om => om.OBJECT_TABLE_NAME == rule.MAPPING_TABLE && om.INTERFACE_FIELD != null);
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// 如果MappingTable也可能是MappingId, 则需要调整查找逻辑
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// var mapping = _config.ObjectMappings.FirstOrDefault(om =>
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// (om.ObjectTableName == rule.MappingTable || om.MappingId == rule.MappingTable) &&
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// om.InterfaceField != null);
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if (mapping == null)
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{
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Console.WriteLine($"Warning: No object mapping found for MappingTable '{rule.MAPPING_TABLE}' in assembly rule '{rule.ID}'. Skipping path '{rule.OBJECT_PATH}'.");
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continue;
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}
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// 3.2 从源对象获取值
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// 这里简化处理，假设sourceObject是字典或可以通过反射获取属性
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// 实际应用中需要更健壮的取值逻辑
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object sourceValue = GetValueFromSourceObject(sourceObject, mapping.SYSTEM_FIELD);
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if (sourceValue == null && rule.OBJECT_PATH.Contains("patientId")) // 示例：特定字段的空值处理
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{
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// Console.WriteLine($"Debug: Source value for {mapping.SystemField} is null.");
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}
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// 3.3 值转换 (字典翻译、类型转换等)
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object convertedValue = _valueConverter.Convert(
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sourceValue,
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mapping.SYSTEM_FIELD_TYPE?.ToString(), // Convert decimal? to string
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mapping.OBJECT_FIELD_TYPE?.ToString(), // Convert decimal? to string
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mapping.SYSTEM_DICT_NAME,
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mapping.OBJECT_DICT_NAME,
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rule.PARAMETR_TYPE
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);
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// 3.4 根据ObjectPath设置值到JSON节点
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SetValueByJsonPath(rootNode, rule.OBJECT_PATH, convertedValue, rule.OBJECT_TYPE);
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}
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return rootNode.ToJsonString(new JsonSerializerOptions { WriteIndented = true });
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}
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/// <summary>
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/// 从源对象中获取指定属性的值 (简化实现)
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/// </summary>
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private object GetValueFromSourceObject(object source, string propertyName)
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{
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if (source == null || string.IsNullOrEmpty(propertyName)) return null;
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if (source is IDictionary<string, object> dictSource)
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{
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return dictSource.TryGetValue(propertyName, out var val) ? val : null;
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}
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if (source is JsonElement jsonElementSource && jsonElementSource.ValueKind == JsonValueKind.Object)
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{
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return jsonElementSource.TryGetProperty(propertyName, out var prop) ? GetValueFromJsonElement(prop) : null;
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}
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// 尝试通过反射获取属性值
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var propInfo = source.GetType().GetProperty(propertyName);
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if (propInfo != null)
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{
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return propInfo.GetValue(source);
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}
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// 如果是JsonNode,尝试获取
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if (source is JsonNode jnSource)
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{
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var parts = propertyName.Split(new[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
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JsonNode currentNode = jnSource;
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foreach (var part in parts)
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{
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if (currentNode is JsonObject jo && jo.ContainsKey(part))
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{
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currentNode = jo[part];
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}
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else
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{
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return null; // 路径不存在
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}
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}
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if (currentNode is JsonValue jv) return jv.GetValue<object>();
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return currentNode; //可能是JsonObject或JsonArray
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}
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Console.WriteLine($"Warning: Property '{propertyName}' not found in source object of type '{source.GetType().Name}'.");
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return null;
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}
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private object GetValueFromJsonElement(JsonElement element)
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{
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switch (element.ValueKind)
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{
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case JsonValueKind.String: return element.GetString();
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case JsonValueKind.Number:
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if (element.TryGetInt32(out int i)) return i;
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if (element.TryGetInt64(out long l)) return l;
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if (element.TryGetDouble(out double d)) return d;
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return element.GetDecimal(); // Fallback
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case JsonValueKind.True: return true;
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case JsonValueKind.False: return false;
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case JsonValueKind.Null: return null;
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case JsonValueKind.Object: return element; // Or parse to dictionary
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case JsonValueKind.Array: return element; // Or parse to list
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default: return null;
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}
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}
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/// <summary>
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/// 根据JSONPath在JsonNode中设置值 (简化实现, 支持基本的路径)
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/// </summary>
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private void SetValueByJsonPath(JsonNode rootNode, string path, object value, int objectType)
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{
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if (string.IsNullOrWhiteSpace(path) || rootNode == null) return;
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// 移除起始的 "$."
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if (path.StartsWith("$."))
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{
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path = path.Substring(2);
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}
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var segments = path.Split('.');
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JsonNode currentNode = rootNode;
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for (int i = 0; i < segments.Length - 1; i++)
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{
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var segment = segments[i];
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if (currentNode[segment] == null)
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{
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// 根据下一个segment是否是数组索引来决定创建JsonObject还是JsonArray
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// 此处简化：如果下一个路径是数字，则认为是数组索引，但设计文档中object_type更可靠
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// 暂时简单处理，都创建JsonObject，实际应根据object_assembly的object_type判断
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currentNode[segment] = new JsonObject();
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}
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currentNode = currentNode[segment];
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if (currentNode == null) // 防御性编程，如果中间节点创建失败或路径无效
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{
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Console.WriteLine($"Error: Could not navigate or create path segment '{segment}' in JSON path '{path}'.");
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return;
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}
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}
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var lastSegment = segments.Last();
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JsonNode valueNode = value == null ? null : JsonValue.Create(value); // JsonValue.Create可以处理多种基本类型
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if (value is JsonElement je)
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{
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valueNode = JsonNode.Parse(je.GetRawText());
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}
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else if (value is IDictionary<string, object> dictValue)
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{
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valueNode = new JsonObject();
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foreach(var kvp in dictValue)
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{
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((JsonObject)valueNode).Add(kvp.Key, JsonValue.Create(kvp.Value));
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}
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}
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else if (value is IEnumerable<object> listValue && !(value is string)) // 确保不是字符串
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{
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var jsonArray = new JsonArray();
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foreach (var item in listValue)
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{
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jsonArray.Add(JsonValue.Create(item));
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}
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valueNode = jsonArray;
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}
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if (objectType == 2) // 列表类型
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{
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if (currentNode[lastSegment] == null || !(currentNode[lastSegment] is JsonArray))
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{
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currentNode[lastSegment] = new JsonArray();
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}
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((JsonArray)currentNode[lastSegment]).Add(valueNode);
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}
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else // 对象类型
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{
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((JsonObject)currentNode)[lastSegment] = valueNode;
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}
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}
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/// <summary>
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/// 将接口JSON字符串根据指定方法转换为目标系统对象 (接口JSON -> 系统对象)
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/// </summary>
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/// <typeparam name="T">期望的目标系统对象类型</typeparam>
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/// <param name="methodName">方法名称 (来自 method_config)</param>
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/// <param name="sourceJson">源JSON字符串</param>
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/// <returns>转换后的目标系统对象</returns>
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public T Transform<T>(string methodName, string sourceJson) where T : new()
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{
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// 1. 查找方法配置
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var method = _config.MethodConfigs.FirstOrDefault(m => m.METHOD_NAME == methodName);
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if (method == null)
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{
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throw new ArgumentException($"Method '{methodName}' not found in configuration.", nameof(methodName));
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}
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// 2. 解析源JSON
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JsonNode sourceNode;
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try
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{
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sourceNode = JsonNode.Parse(sourceJson);
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}
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catch (JsonException ex)
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{
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throw new ArgumentException("Invalid source JSON string.", nameof(sourceJson), ex);
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}
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if (sourceNode == null) throw new ArgumentException("Parsed source JSON is null.", nameof(sourceJson));
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|
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// 3. 筛选出适用于当前方法和入参的组装规则 (parametr_type = 1 代表入参)
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||
|
|
var assemblyRules = _config.ObjectAssemblies
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|
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.Where(a => a.METHOD_REF == method.METHOD_ID && a.PARAMETR_TYPE == 1 && a.ASSEMBLY_TYPE == "sys") // 假设是接口到系统的转换
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.OrderBy(a => a.OBJECT_PATH)
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.ToList();
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|
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if (!assemblyRules.Any())
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{
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Console.WriteLine($"Warning: No 'sys' assembly rules found for method '{methodName}' and parameter type 1 (input).");
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return new T(); // 或者抛出异常
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}
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T targetObject = new T();
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// 4. 遍历组装规则, 填充目标对象
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foreach (var rule in assemblyRules)
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{
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var mapping = _config.ObjectMappings.FirstOrDefault(om => om.OBJECT_TABLE_NAME == rule.MAPPING_TABLE && om.SYSTEM_FIELD != null);
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if (mapping == null)
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{
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Console.WriteLine($"Warning: No object mapping found for MappingTable '{rule.MAPPING_TABLE}' in assembly rule '{rule.ID}'. Skipping path '{rule.OBJECT_PATH}'.");
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continue;
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}
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// 4.1 从源JSON获取值
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||
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object sourceValue = GetValueByJsonPath(sourceNode, rule.OBJECT_PATH);
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||
|
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// 4.2 值转换
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||
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object convertedValue = _valueConverter.Convert(sourceValue, mapping.OBJECT_FIELD_TYPE, mapping.SYSTEM_FIELD_TYPE, mapping.OBJECT_DICT_NAME, mapping.SYSTEM_DICT_NAME, rule.PARAMETR_TYPE);
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||
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// 4.3 设置到目标对象属性 (简化实现, 假设属性名与SystemField一致)
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||
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// 实际应用中可能需要更复杂的属性设置逻辑，例如处理嵌套对象
|
||
|
|
var propInfo = typeof(T).GetProperty(mapping.SYSTEM_FIELD);
|
||
|
|
if (propInfo != null && propInfo.CanWrite)
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
// 类型转换，确保赋的值与属性类型匹配
|
||
|
|
var typedValue = ConvertToPropertyType(convertedValue, propInfo.PropertyType);
|
||
|
|
propInfo.SetValue(targetObject, typedValue);
|
||
|
|
}
|
||
|
|
catch (Exception ex)
|
||
|
|
{
|
||
|
|
Console.WriteLine($"Error setting property '{mapping.SYSTEM_FIELD}': {ex.Message}");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
Console.WriteLine($"Warning: Property '{mapping.SYSTEM_FIELD}' not found or not writable on type '{typeof(T).Name}'.");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return targetObject;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 根据JSONPath从JsonNode中获取值 (简化实现)
|
||
|
|
/// </summary>
|
||
|
|
private object GetValueByJsonPath(JsonNode rootNode, string path)
|
||
|
|
{
|
||
|
|
if (string.IsNullOrWhiteSpace(path) || rootNode == null) return null;
|
||
|
|
if (path.StartsWith("$.")) path = path.Substring(2);
|
||
|
|
|
||
|
|
var segments = path.Split('.');
|
||
|
|
JsonNode currentNode = rootNode;
|
||
|
|
foreach (var segment in segments)
|
||
|
|
{
|
||
|
|
if (currentNode is JsonObject jo && jo.ContainsKey(segment))
|
||
|
|
{
|
||
|
|
currentNode = jo[segment];
|
||
|
|
}
|
||
|
|
// TODO: Add support for array indexing if needed, e.g., "items[0].name"
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return null; // 路径不存在
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (currentNode is JsonValue jv) return jv.GetValue<object>(); // GetValue<object> 会尝试转换为合适的.NET类型
|
||
|
|
return currentNode; //可能是JsonObject或JsonArray，调用者需要进一步处理
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 将值转换为目标属性类型 (简化实现)
|
||
|
|
/// </summary>
|
||
|
|
private object ConvertToPropertyType(object value, Type targetType)
|
||
|
|
{
|
||
|
|
if (value == null) return null;
|
||
|
|
if (targetType.IsAssignableFrom(value.GetType())) return value;
|
||
|
|
try
|
||
|
|
{
|
||
|
|
return Convert.ChangeType(value, targetType);
|
||
|
|
}
|
||
|
|
catch
|
||
|
|
{
|
||
|
|
// 对于复杂类型或JsonElement，可能需要特殊处理
|
||
|
|
if (value is JsonElement je && targetType == typeof(string)) return je.ToString();
|
||
|
|
// 添加更多转换逻辑...
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 值转换器接口 (用于字典翻译、类型转换等)
|
||
|
|
/// </summary>
|
||
|
|
public interface IValueConverter
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// 执行值转换
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="sourceValue">源值</param>
|
||
|
|
/// <param name="sourceType">源类型字符串 (来自配置)</param>
|
||
|
|
/// <param name="targetType">目标类型字符串 (来自配置)</param>
|
||
|
|
/// <param name="sourceDictName">源字典名称 (来自配置)</param>
|
||
|
|
/// <param name="targetDictName">目标字典名称 (来自配置)</param>
|
||
|
|
/// <param name="paramDirection">参数方向 (1入参，2出参)</param>
|
||
|
|
/// <returns>转换后的值</returns>
|
||
|
|
object Convert(object sourceValue, string sourceType, string targetType, string sourceDictName, string targetDictName, int paramDirection);
|
||
|
|
object Convert(object sourceValue, decimal? oBJECT_FIELD_TYPE, decimal? sYSTEM_FIELD_TYPE, string oBJECT_DICT_NAME, string sYSTEM_DICT_NAME, int pARAMETR_TYPE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// 默认的值转换器实现 (简单类型转换，无字典转换)
|
||
|
|
/// </summary>
|
||
|
|
public class DefaultValueConverter : IValueConverter
|
||
|
|
{
|
||
|
|
public object Convert(object sourceValue, string sourceType, string targetType, string sourceDictName, string targetDictName, int paramDirection)
|
||
|
|
{
|
||
|
|
// 简单示例：如果类型字符串匹配C#类型，尝试转换
|
||
|
|
if (sourceValue == null) return null;
|
||
|
|
|
||
|
|
try
|
||
|
|
{
|
||
|
|
Type targetTypeResolved = Type.GetType(targetType) ?? typeof(object);
|
||
|
|
return System.Convert.ChangeType(sourceValue, targetTypeResolved);
|
||
|
|
}
|
||
|
|
catch
|
||
|
|
{
|
||
|
|
return sourceValue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public object Convert(object sourceValue, decimal? objectFieldType, decimal? systemFieldType, string objectDictName, string systemDictName, int paramDirection)
|
||
|
|
{
|
||
|
|
// 示例实现：直接返回源值，实际应用中需要根据字段类型和字典名称进行转换
|
||
|
|
return sourceValue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|