120 lines
4.3 KiB
C#
120 lines
4.3 KiB
C#
using AutoMapper;
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using DMS.Core.Interfaces;
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using DMS.Core.Models;
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using DMS.Application.DTOs;
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using DMS.Application.Interfaces;
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namespace DMS.Application.Services;
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/// <summary>
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/// 变量应用服务，负责处理变量相关的业务逻辑。
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/// 实现 <see cref="IVariableAppService"/> 接口。
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/// </summary>
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public class VariableAppService : IVariableAppService
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{
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private readonly IRepositoryManager _repoManager;
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private readonly IMapper _mapper;
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/// <summary>
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/// 构造函数，通过依赖注入获取仓储管理器和AutoMapper实例。
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/// </summary>
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/// <param name="repoManager">仓储管理器实例。</param>
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/// <param name="mapper">AutoMapper 实例。</param>
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public VariableAppService(IRepositoryManager repoManager, IMapper mapper)
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{
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_repoManager = repoManager;
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_mapper = mapper;
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}
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/// <summary>
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/// 异步根据ID获取变量数据传输对象。
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/// </summary>
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/// <param name="id">变量ID。</param>
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/// <returns>变量数据传输对象。</returns>
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public async Task<VariableDto> GetVariableByIdAsync(int id)
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{
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var variable = await _repoManager.Variables.GetByIdAsync(id);
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return _mapper.Map<VariableDto>(variable);
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}
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/// <summary>
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/// 异步获取所有变量数据传输对象列表。
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/// </summary>
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/// <returns>变量数据传输对象列表。</returns>
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public async Task<List<VariableDto>> GetAllVariablesAsync()
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{
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var variables = await _repoManager.Variables.GetAllAsync();
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return _mapper.Map<List<VariableDto>>(variables);
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}
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/// <summary>
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/// 异步创建一个新变量（事务性操作）。
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/// </summary>
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/// <param name="variableDto">要创建的变量数据传输对象。</param>
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/// <returns>新创建变量的ID。</returns>
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/// <exception cref="ApplicationException">如果创建变量时发生错误。</exception>
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public async Task<int> CreateVariableAsync(VariableDto variableDto)
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{
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try
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{
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await _repoManager.BeginTranAsync();
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var variable = _mapper.Map<Variable>(variableDto);
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await _repoManager.Variables.AddAsync(variable);
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await _repoManager.CommitAsync();
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return variable.Id;
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}
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catch (Exception ex)
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{
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await _repoManager.RollbackAsync();
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throw new ApplicationException("创建变量时发生错误，操作已回滚。", ex);
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}
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}
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/// <summary>
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/// 异步更新一个已存在的变量（事务性操作）。
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/// </summary>
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/// <param name="variableDto">要更新的变量数据传输对象。</param>
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/// <returns>表示异步操作的任务。</returns>
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/// <exception cref="ApplicationException">如果找不到变量或更新变量时发生错误。</exception>
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public async Task UpdateVariableAsync(VariableDto variableDto)
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{
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try
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{
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await _repoManager.BeginTranAsync();
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var variable = await _repoManager.Variables.GetByIdAsync(variableDto.Id);
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if (variable == null)
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{
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throw new ApplicationException($"Variable with ID {variableDto.Id} not found.");
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}
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_mapper.Map(variableDto, variable);
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await _repoManager.Variables.UpdateAsync(variable);
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await _repoManager.CommitAsync();
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}
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catch (Exception ex)
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{
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await _repoManager.RollbackAsync();
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throw new ApplicationException("更新变量时发生错误，操作已回滚。", ex);
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}
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}
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/// <summary>
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/// 异步删除一个变量（事务性操作）。
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/// </summary>
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/// <param name="id">要删除变量的ID。</param>
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/// <returns>表示异步操作的任务。</returns>
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/// <exception cref="ApplicationException">如果删除变量时发生错误。</exception>
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public async Task DeleteVariableAsync(int id)
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{
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try
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{
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await _repoManager.BeginTranAsync();
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await _repoManager.Variables.DeleteByIdAsync(id);
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await _repoManager.CommitAsync();
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}
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catch (Exception ex)
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{
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await _repoManager.RollbackAsync();
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throw new ApplicationException("删除变量时发生错误，操作已回滚。", ex);
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}
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}
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} |