/// <summary>
/// 单向数据同步，将外部数据导入到任务系统
/// </summary>
public IEnumerable <TLocalData> GetDataFromSyncSource()
{
List <TLocalData> localDataList = new List <TLocalData>();
IList <TSyncData> syncDataList = _syncDataService.GetSyncDataList();
foreach (var syncData in syncDataList)
{
var localData = _localDataService.CreateFrom(syncData);
localDataList.Add(localData);
}
return(localDataList);
}
/// <summary>
/// 双向数据同步
/// </summary>
public TSyncResult ProcessTwoWaySynchronization(IEnumerable <TLocalData> localDataList, IEnumerable <SyncInfo> syncInfos)
{
TSyncResult syncResult = new TSyncResult();
int syncDataType = GetSyncDataType();
IList <TSyncData> syncDataList = _syncDataService.GetSyncDataList();
//先做日志记录，方便查找问题
_logger.InfoFormat("----外部同步数据, 总条数:{0}, 数据类型:{1}, 明细如下:", syncDataList.Count(), typeof(TSyncData).FullName);
foreach (var syncData in syncDataList)
{
LogSyncData(syncData);
}
//1. 以TLocalData为出发点，同步TSyncData
foreach (var localData in localDataList)
{
IEnumerable <SyncInfo> filterSyncInfos = syncInfos.Where(x => x.LocalDataId == localData.Id && x.SyncDataType == syncDataType);
if (filterSyncInfos.Count() == 0)
{
if (AllowAutoCreateSyncInfo)
{
//新增TSyncData
var syncData = _syncDataService.CreateFrom(localData);
syncData.SyncId = localData.Id;
syncData.SyncType = syncDataType;
syncResult.SyncDatasToCreate.Add(syncData);
}
}
else
{
foreach (var syncInfo in filterSyncInfos)
{
var syncData = syncDataList.SingleOrDefault(x => x.Id == syncInfo.SyncDataId);
if (syncData == null)
{
//删除localData
localData.SyncId = syncInfo.SyncDataId;
localData.SyncType = syncDataType;
syncResult.LocalDatasToDelete.Add(localData);
}
else if (syncData.IsFromDefault)
{
//比较最后更新时间，用晚更新的数据覆盖早更新的数据，比较时只精确到秒
DateTime localDataLastUpdateLocalTime =
new DateTime(
localData.LastUpdateLocalTime.Year,
localData.LastUpdateLocalTime.Month,
localData.LastUpdateLocalTime.Day,
localData.LastUpdateLocalTime.Hour,
localData.LastUpdateLocalTime.Minute,
localData.LastUpdateLocalTime.Second
);
DateTime syncDataLastUpdateLocalTime =
new DateTime(
syncData.LastUpdateLocalTime.Year,
syncData.LastUpdateLocalTime.Month,
syncData.LastUpdateLocalTime.Day,
syncData.LastUpdateLocalTime.Hour,
syncData.LastUpdateLocalTime.Minute,
syncData.LastUpdateLocalTime.Second
);
if (localDataLastUpdateLocalTime > syncDataLastUpdateLocalTime)
{
//更新TSyncData
_syncDataService.UpdateSyncData(syncData, localData);
syncData.SyncId = localData.Id;
syncResult.SyncDatasToUpdate.Add(syncData);
}
else if (localDataLastUpdateLocalTime < syncDataLastUpdateLocalTime)
{
//更新TLocalData
_localDataService.UpdateSyncData(localData, syncData);
localData.SyncId = syncData.Id;
localData.LastUpdateLocalTime = syncData.LastUpdateLocalTime;
syncResult.LocalDatasToUpdate.Add(localData);
}
}
}
}
}
//2. 以TSyncData为出发点，同步TLocalData
foreach (var syncData in syncDataList)
{
//先获取同步信息
IEnumerable <SyncInfo> filterSyncInfos = syncInfos.Where(x => x.SyncDataId == syncData.Id && x.SyncDataType == syncDataType);
if (filterSyncInfos.Count() == 0)
{
//新增TLocalData
var localData = _localDataService.CreateFrom(syncData);
localData.SyncId = syncData.Id;
localData.SyncType = syncDataType;
localData.LastUpdateLocalTime = syncData.LastUpdateLocalTime;
localData.IsFromDefault = syncData.IsFromDefault;
syncResult.LocalDatasToCreate.Add(localData);
}
else
{
foreach (var syncInfo in filterSyncInfos)
{
var localData = localDataList.SingleOrDefault(x => x.Id == syncInfo.LocalDataId);
if (localData == null)
{
//删除TSyncData
syncData.SyncId = syncInfo.LocalDataId;
syncData.SyncType = syncDataType;
syncResult.SyncDatasToDelete.Add(syncData);
}
}
}
}
return(syncResult);
}
