protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
try
{
while (!stoppingToken.IsCancellationRequested)
{
lock (thisLock)
{
using (var db = new DataContext(AppEtl.Db))
{
var tableLink = DataSchema.TableLink(db);
BaseLog.SaveLog("开始抽取", "FastEtlService");
var list = IFast.Query <Data_Business>(a => a.Id != null).ToList <Data_Business>(db);
foreach (var item in list)
{
var isExec = item.UpdateTime == DateTime.Now.Hour;
if (item.UpdateTime == 99)
{
isExec = true;
}
if (DataSchema.IsExistsTable(db, item.TableName) && isExec)
{
Parallel.Invoke(() =>
{
var leaf = IFast.Query <Data_Business_Details>(a => a.Id == item.Id).ToList <Data_Business_Details>(db) ?? new List <Data_Business_Details>();
if (leaf.Count > 0 && leaf.Exists(a => a.Key.ToStr() != ""))
{
var isAdd = true;
var dt = DataSchema.GetTable(tableLink, item.TableName);
var columnName = dt.Columns[2].ColumnName.ToLower();
if (leaf.Exists(a => a.FieldName.ToLower() == columnName))
{
DataSchema.ExpireData(db, item);
//第一列
var link = DataSchema.InitColLink(leaf, db, IFast);
var tempLeaf = leaf.Find(a => a.FieldName.ToLower() == columnName);
var pageInfo = DataSchema.GetTableCount(tempLeaf, item);
for (var i = 1; i <= pageInfo.pageCount; i++)
{
var log = new Data_Log();
log.Id = Guid.NewGuid().ToStr();
log.TableName = string.Format("{0}_page_{1}", item.TableName, i);
log.BeginDateTime = DateTime.Now;
pageInfo.pageId = i;
var tempLink = link.Find(a => a.GetValue("id").ToStr() == tempLeaf.DataSourceId);
var pageData = DataSchema.GetFirstColumnData(tempLink, tempLeaf, item, pageInfo);
//遍历填充table
for (var row = 0; row < pageData.list.Count; row++)
{
var dtRow = dt.NewRow();
dtRow["EtlAddTime"] = DateTime.Now;
dtRow["EtlKey"] = pageData.list[row].GetValue("key");
dtRow[columnName] = pageData.list[row].GetValue("data");
//字典对照
if (!string.IsNullOrEmpty(tempLeaf.Dic))
{
dtRow[columnName] = IFast.Query <Data_Dic_Details>(a => a.Value.ToLower() == dtRow[columnName].ToStr().ToLower() && a.DicId == tempLeaf.Dic, a => new { a.ContrastValue }).ToDic(db).GetValue("ContrastValue");
}
//数据策略
isAdd = DataSchema.DataPolicy(db, item, dtRow["EtlKey"], columnName, dtRow[columnName]);
for (var col = 2; col < dt.Columns.Count; col++)
{
columnName = dt.Columns[col].ColumnName.ToLower();
if (leaf.Exists(a => a.FieldName.ToLower() == columnName))
{
tempLeaf = leaf.Find(a => a.FieldName.ToLower() == columnName);
tempLink = link.Find(a => a.GetValue("id").ToStr() == tempLeaf.DataSourceId);
dtRow[columnName] = DataSchema.GetColumnData(tempLink, tempLeaf, dtRow["EtlKey"]);
//字典对照
if (!string.IsNullOrEmpty(tempLeaf.Dic))
{
dtRow[columnName] = IFast.Query <Data_Dic_Details>(a => a.Value.ToLower() == dtRow[columnName].ToStr().ToLower() && a.DicId == tempLeaf.Dic, a => new { a.ContrastValue }).ToDic(db).GetValue("ContrastValue");
}
//数据策略
if (item.Policy == "2")
{
isAdd = DataSchema.DataPolicy(db, item, dtRow["EtlKey"], columnName, dtRow[columnName]);
}
}
}
if (isAdd)
{
dt.Rows.Add(dtRow);
}
}
if (dt.Rows.Count > 0)
{
DataSchema.AddList(db, dt, ref log);
}
db.Add(log);
dt.Clear();
}
DataSchema.CloseLink(link);
item.LastUpdateTime = DateTime.Now;
IFast.Update <Data_Business>(item, a => a.Id == item.Id, a => new { a.LastUpdateTime }, db);
}
}
});
}
}
BaseLog.SaveLog("结束抽取", "FastEtlService");
DataSchema.CloseTableLink(tableLink);
}
}
await Task.Delay(1000 * 60 * 30, stoppingToken);
}
}
catch (Exception ex)
{
BaseLog.SaveLog(ex.ToString(), "FastEtlServiceError");
}
}