GetChargingPilesQueryHandler.cs
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using AutoMapper;
using MassTransit;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Rcs.Application.Common;
using Rcs.Application.DTOs;
using Rcs.Application.MessageBus.Commands.ChargingPile;
using Rcs.Domain.Repositories;
namespace Rcs.Infrastructure.MessageBus.Handlers.Commands.ChargingPile
{
/// <summary>
/// Get charging pile list query handler.
/// </summary>
public class GetChargingPilesQueryHandler : IConsumer<GetChargingPilesQuery>
{
private readonly ILogger<GetChargingPilesQueryHandler> _logger;
private readonly IChargingPileRepository _repository;
private readonly IMapper _mapper;
public GetChargingPilesQueryHandler(
ILogger<GetChargingPilesQueryHandler> logger,
IChargingPileRepository repository,
IMapper mapper)
{
_logger = logger;
_repository = repository;
_mapper = mapper;
}
public async Task Consume(ConsumeContext<GetChargingPilesQuery> context)
{
var query = context.Message;
try
{
var queryable = _repository.GetQueryable();
if (!string.IsNullOrWhiteSpace(query.FilterModel))
{
queryable = FilterHelper.ApplyFilters(queryable, query.FilterModel);
}
if (!string.IsNullOrWhiteSpace(query.PileCode))
{
queryable = queryable.Where(x => x.PileCode.Contains(query.PileCode));
}
if (!string.IsNullOrWhiteSpace(query.PileName))
{
queryable = queryable.Where(x => x.PileName.Contains(query.PileName));
}
if (!string.IsNullOrWhiteSpace(query.IpAddress))
{
queryable = queryable.Where(x => x.IpAddress.Contains(query.IpAddress));
}
if (query.IsActive.HasValue)
{
queryable = queryable.Where(x => x.IsActive == query.IsActive.Value);
}
var totalCount = await queryable.CountAsync(context.CancellationToken);
var items = await queryable
.OrderByDescending(x => x.CreatedAt)
.Skip((query.PageNumber - 1) * query.PageSize)
.Take(query.PageSize)
.ToListAsync(context.CancellationToken);
var dtos = _mapper.Map<List<ChargingPileListItemDto>>(items);
await context.RespondAsync(
PagedResponse<ChargingPileListItemDto>.Successful(dtos, query.PageNumber, query.PageSize, totalCount));
}
catch (Exception ex)
{
_logger.LogError(ex, "Get charging pile list failed");
await context.RespondAsync(PagedResponse<ChargingPileListItemDto>.Failed(ex.Message));
}
}
}
}