/// <summary>
/// 设备曲线数据读取器。
/// </summary>
/// <param name="device">设备集合中的第一次访问的设备对象。</param>
/// <param name="startDate">访问数据的起始日期，如果未设置过 DateRange 日期范围则以该日期作为数据筛选的起始日期。</param>
/// <param name="endDate">访问数据的结束日期，如果未设置过 DateRange 日期范围则以该日期作为数据筛选的结束日期。</param>
/// <param name="curvePoint">是否将曲线数据强制转换为指定的点数。如果该值为 0 则表示不转换，设备曲线数据点数使用各设备的默认值。</param>
/// <param name="mergeOption">当转换后的点数小于目前曲线点数时，如何合并目前的数据。</param>
/// <param name="splitOption">当转换后的点数大于目前曲线点数时，如何拆分目前的数据。</param>
/// <param name="tableNameF">96及以下点数数据表名。</param>
/// <param name="tableNameS">96以上点数数据表名。</param>
public DeviceCurveDataReader(Device device, DateTime startDate, DateTime endDate, int curvePoint, CurveMergeOptions mergeOption, CurveSplitOptions splitOption, string tableNameF, string tableNameS)
{
this.m_CurvePoint = curvePoint;
this.m_FirstDevice = device;
if (device.DateRange != null && device.DateRange.ContainsDay(startDate, endDate))
{
this.m_DateRange = device.DateRange;
}
else
{
this.m_DateRange = new DateRange(startDate, endDate);
}
string strDeviceIdWhereF = "";
string strDeviceIdWhereS = "";
if (device.Source != null && device.Source.Contains(device))
{
foreach (Device device1 in device.Source)
{
CurvePointOptions _CurvePoint = this.GetDeviceCurvePoint(device1);
if (_CurvePoint <= CurvePointOptions.Point96 || (curvePoint > 0 && curvePoint < (int)CurvePointOptions.Point96))
{
strDeviceIdWhereF += "," + device1.DeviceId;
}
else
{
strDeviceIdWhereS += "," + device1.DeviceId;
}
if (device1.DateRange == null || device1.DateRange.UniqueId != this.m_DateRange.UniqueId)
{
device1.DateRange = this.m_DateRange;
}
this.SetReader(device1);
}
if (strDeviceIdWhereF.Length > 0)
{
strDeviceIdWhereF = " IN (" + strDeviceIdWhereF.Substring(1) + ")";
}
if (strDeviceIdWhereS.Length > 0)
{
strDeviceIdWhereS = " IN (" + strDeviceIdWhereS.Substring(1) + ")";
}
}
else
{
CurvePointOptions _CurvePoint = this.GetDeviceCurvePoint(device);
if (_CurvePoint <= CurvePointOptions.Point96 || (curvePoint > 0 && curvePoint < (int)CurvePointOptions.Point96))
{
strDeviceIdWhereF = "=" + device.DeviceId;
}
else
{
strDeviceIdWhereS = "=" + device.DeviceId;
}
if (device.DateRange == null || device.DateRange.UniqueId != this.m_DateRange.UniqueId)
{
device.DateRange = this.m_DateRange;
}
this.SetReader(device);
}
AC.Base.Database.DbConnection dbConn = device.Application.GetDbConnection();
if (dbConn != null)
{
try
{
foreach (DateRange.MonthlyForDayRange range in this.DateRange.GetMonthRanges())
{
if (strDeviceIdWhereF.Length > 0)
{
string strTableName = Database.DbConnection.GetMonthlyName(tableNameF, range.Date.Year, range.Date.Month);
if (dbConn.TableIsExist(strTableName))
{
string strSqlDate = range.GetSqlWhere("DateNum");
if (strSqlDate.Length > 0)
{
strSqlDate = " AND " + strSqlDate;
}
string strSql = "SELECT * FROM " + strTableName + " WHERE DeviceId" + strDeviceIdWhereF + strSqlDate;
System.Data.IDataReader dr = dbConn.ExecuteReader(strSql);
while (dr.Read())
{
Device deviceF = this.GetDevice(Function.ToInt(dr["DeviceId"]));
CurvePointOptions _DeviceCurvePointF = this.GetDeviceCurvePoint(deviceF);
if (_DeviceCurvePointF > CurvePointOptions.Point96)
{
_DeviceCurvePointF = CurvePointOptions.Point96; //如果设备默认的曲线数据点数大于96点，则使用96点数据。
}
decimal?[] decValues = new decimal?[_DeviceCurvePointF.GetPointCount()];
for (int intPointIndex = 0; intPointIndex < _DeviceCurvePointF.GetPointCount(); intPointIndex++)
{
string strColumnName = "Value" + (intPointIndex * (96 / _DeviceCurvePointF.GetPointCount()) + 1);
decValues[intPointIndex] = Function.ToDecimalNull(dr[strColumnName]);
}
if (curvePoint != 0 && curvePoint != (int)_DeviceCurvePointF)
{
//需要对曲线数据进行转换
decValues = CurveValue.ConvertTo(decValues, (CurvePointOptions)curvePoint, mergeOption, splitOption);
}
this.DoDataReaderF(deviceF, dr, decValues);
}
dr.Close();
}
}
if (strDeviceIdWhereS.Length > 0)
{
string strTableName = Database.DbConnection.GetMonthlyName(tableNameS, range.Date.Year, range.Date.Month);
if (dbConn.TableIsExist(strTableName))
{
string strSqlDate = range.GetSqlWhere("DateNum");
if (strSqlDate.Length > 0)
{
strSqlDate = " AND " + strSqlDate;
}
string strSql = "SELECT * FROM " + strTableName + " WHERE DeviceId" + strDeviceIdWhereS + strSqlDate;
System.Data.IDataReader dr = dbConn.ExecuteReader(strSql);
while (dr.Read())
{
this.DoDataReaderS(this.GetDevice(Function.ToInt(dr["DeviceId"])), dr);
}
dr.Close();
}
}
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
dbConn.Close();
}
if (curvePoint > 0 && strDeviceIdWhereS.Length > 0)
{
//通知继承的曲线读取器转换分秒数据点数。
this.DoConvertS();
}
}
}
/// <summary>
/// 搜索指定页数的曲线数据。
/// </summary>
/// <param name="pageNum">搜索第几页的数据。</param>
/// <returns></returns>
public IList <V> Search(int pageNum)
{
List <V> lstValues = new List <V>();
this.PageNum = pageNum;
this.RecordsetCount = 0;
this.PageCount = 0;
Database.DbConnection dbConn = this.Application.GetDbConnection();
if (dbConn == null)
{
throw new Exception("当前系统未配置数据库连接，无法使用搜索功能。");
}
try
{
if (dbConn.TableIsExist(this.GetDataTableName()))
{
string strWhere = Tables.Device.TableName + "." + Tables.Device.DeviceId + "=" + this.GetDataTableName() + ".DeviceId";
if (this.StartDate == this.EndDate)
{
strWhere += " AND " + this.GetDataTableName() + ".DateNum=" + Function.ToIntDate(this.StartDate);
}
else
{
strWhere += " AND " + this.GetDataTableName() + ".DateNum>=" + Function.ToIntDate(this.StartDate) + " AND " + this.GetDataTableName() + ".DateNum<=" + Function.ToIntDate(this.EndDate);
}
strWhere += this.GetSqlWhere();
if (this.Filters.Count > 0)
{
string strFilterWhere = this.Filters.GetFilterSql(true);
if (strFilterWhere != null && strFilterWhere.Length > 0)
{
strWhere += " AND (" + strFilterWhere + ")";
}
}
if (strWhere.Length > 0)
{
strWhere = " WHERE " + strWhere;
}
string strTableNames = "";
if (this.m_TableNames != null && this.m_TableNames.Length > 0)
{
foreach (string name in this.m_TableNames)
{
strTableNames += "," + name;
}
}
string strSql;
// 查询结果记录集总数。
strSql = "SELECT COUNT(" + this.GetDataTableName() + ".DeviceId) FROM " + Tables.Device.TableName + strTableNames + "," + this.GetDataTableName() + strWhere;
this.RecordsetCount = Function.ToInt(dbConn.ExecuteScalar(strSql));
// 计算总页数并检查当前页是否在页数范围内。
if (this.RecordsetCount == 0)
{
this.PageCount = 0;
this.PageNum = 0;
}
else
{
if (this.PageSize > 0)
{
this.PageCount = this.RecordsetCount / this.PageSize;
if ((this.RecordsetCount % this.PageSize) > 0)
{
this.PageCount++;
}
if (this.PageNum < 1)
{
this.PageNum = 1;
}
if (this.PageNum > this.PageCount)
{
this.PageNum = this.PageCount;
}
}
else
{
this.PageNum = 1;
this.PageCount = 1;
}
System.Data.IDataReader dr = null;
if (this.PageCount == 1)
{
strSql = "SELECT " + this.GetSelectColumn() + " FROM " + Tables.Device.TableName + strTableNames + "," + this.GetDataTableName() + strWhere + this.GetOrder(true, this.IsAscend ? false : true);
dr = dbConn.ExecuteReader(strSql);
}
else if (this.PageCount > 1)
{
if (this.PageNum == 1)
{
dr = dbConn.GetDataReader(this.PageSize, this.GetSelectColumn(), Tables.Device.TableName + strTableNames + "," + this.GetDataTableName(), strWhere, this.GetOrder(true, this.IsAscend ? false : true));
}
else if (this.PageNum == this.PageCount)
{
dr = dbConn.GetDataReader(this.PageSize, this.RecordsetCount, this.GetSelectColumn(), Tables.Device.TableName + strTableNames + "," + this.GetDataTableName(), strWhere, this.GetOrder(true, this.IsAscend ? true : false), this.GetOrder(false, this.IsAscend ? false : true));
}
else
{
dr = dbConn.GetDataReader(this.PageSize, this.PageNum, this.GetSelectColumn(), Tables.Device.TableName + strTableNames + "," + this.GetDataTableName(), strWhere, this.GetOrder(true, this.IsAscend ? false : true), this.GetOrder(false, this.IsAscend ? true : false), this.GetOrder(false, this.IsAscend ? false : true));
}
}
if (dr != null)
{
DeviceCollection devices = new DeviceCollection(true);
while (dr.Read())
{
int intDeviceId = Function.ToInt(dr[Tables.Device.DeviceId]);
Device device = this.Application.GetDeviceInstance(intDeviceId);
if (device != null)
{
device.SetDataReader(dr);
}
else
{
DeviceType deviceType = this.Application.DeviceTypeSort.GetDeviceType(Function.ToString(dr[Tables.Device.DeviceType]));
if (deviceType != null)
{
device = deviceType.CreateDevice();
device.SetApplication(this.Application);
device.SetDataReader(dr);
this.Application.SetDeviceInstance(device);
}
}
if (device != null)
{
devices.Add(device);
decimal?[] decValues = new decimal?[CurvePointOptions.Point96.GetPointCount()];
for (int intPointIndex = 0; intPointIndex < CurvePointOptions.Point96.GetPointCount(); intPointIndex++)
{
string strColumnName = "Value" + (intPointIndex + 1);
decValues[intPointIndex] = Function.ToDecimalNull(dr[strColumnName]);
}
if (this.CurvePoint != CurvePointOptions.Point96)
{
//需要对曲线数据进行转换
decValues = CurveValue.ConvertTo(decValues, (CurvePointOptions)this.CurvePoint, this.CurveMerge, CurveSplitOptions.Copy);
}
lstValues.Add(this.DoDataReader(device, dr, decValues));
}
}
dr.Close();
}
}
}
else
{
this.RecordsetCount = 0;
this.PageCount = 0;
this.PageNum = 0;
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
dbConn.Close();
}
return(lstValues);
}