// 更新警员位置
// 返回警员位置变化状态，并同时返回警员位置变化异常状态结果
private bool UpgradeOfficerLocation(UpLoadDataPackage data, TagBindModel bdm, out UpgradeOfficerLocationResult result)
{
var handler = new OfficerLocationHandle(Repository);
var lc = handler.First(t => t.OfficerId == bdm.Officer.Id);
result = new UpgradeOfficerLocationResult {
PreLocation = lc, IsLocationException = false
};
var isEmpty = (null == lc);
// 首次进入基站
if (isEmpty && !data.IsOut)
{
lc = new OfficerLocation {
OfficerId = bdm.Officer.Id, EquipId = bdm.Equipment.Id, SiteId = data.SiteId, Status = (short)LocationStatus.In, UpTime = data.TTime
};
handler.Add(lc);
return(true);
}
// 进入基站，并且位置发生变化
if (!isEmpty && !data.IsOut && data.SiteId != lc.SiteId)
{
// 警员位置异常范围最小值
var tmin = lc.UpTime - OfficerLocationExceptionTimeRange;
// 警员位置异常范围最大 值
var tmax = lc.UpTime + OfficerLocationExceptionTimeRange;
// 进一步判断是否发生在异常时间内，并标识是否发生异常
result.IsLocationException = (tmin <= data.TTime && tmax >= data.TTime);
if (result.IsLocationException)
{
// 位置异常，中断执行后续处理，并触发位置异常处理
return(false);
}
// 位置没有发生异常，继续执行后续处理
lc.SiteId = data.SiteId;
lc.EquipId = bdm.Equipment.Id;
lc.Status = (short)LocationStatus.In;
lc.UpTime = data.TTime;
handler.Modify(lc);
return(true);
}
// 离开基站
if (!isEmpty && data.IsOut && lc.SiteId == data.SiteId)
{
lc.EquipId = bdm.Equipment.Id;
lc.Status = (short)LocationStatus.Out;
lc.UpTime = data.TTime;
handler.Modify(lc);
}
return(false);
}
// 矩形选择
public IEnumerable <OfficerDispatchQueryModel> RectangleSelect(double x1, double y1, double x2, double y2)
{
var lcHandler = new OfficerLocationHandle(Repository);
var ocHandler = new OfficerHandle(Repository);
var orgHandler = new OrganizationHandle(Repository);
var ptHandler = new PoliceTypeHandle(Repository);
var stHandler = new StationHandle(Repository);
var noDel = (short)DeleteStatus.No;
var query =
from lc in lcHandler.All(null)
join oc in ocHandler.All(t => t.IsDel == noDel) on lc.OfficerId equals oc.Id
join org in orgHandler.All(t => t.IsDel == noDel) on oc.OrgId equals org.Id
join ptp in ptHandler.All(t => t.IsDel == noDel) on oc.PtId equals ptp.Id
join sts in stHandler.All(t => t.IsDel == noDel) on lc.SiteId equals sts.SiteId into stas
from st in stas.DefaultIfEmpty(new Station {
})
select new { location = lc, officer = oc, org = org, ptp = ptp, station = st };
// 此处进一步查询
if (!User.IsSupperAdministrator)
{
var orgId = User.Organization.Id;
query = query.Where(t => t.org.Id == orgId);
}
var xmin = x1;
var xmax = x2;
if (x1 > x2)
{
xmax = x1;
xmin = x2;
}
var ymin = y1;
var ymax = y2;
if (y1 > y2)
{
ymin = y2;
ymax = y1;
}
var items = query.OrderByDescending(t => t.location.UpTime).ToArray()
.Select(t => {
OfficerDispatchQueryModel m = null;
if (string.IsNullOrWhiteSpace(t.station.SiteId) ||
(t.station.Lon >= xmin && t.station.Lon <= xmax && t.station.Lat >= ymin && t.station.Lat <= ymax)
)
{
m = new OfficerDispatchQueryModel
{
location = t.location,
officer = t.officer,
org = t.org,
ptp = t.ptp,
station = t.station
};
}
return(m);
}).Where(t => t != null).ToArray();
return(items);
}