protected void Page_Load(object sender, EventArgs e)
{
AlertController controller = new AlertController();
AlertSelectCriteria criteria = new AlertSelectCriteria();
criteria.AlertLevelEnum.EqualTo(AlertLevelEnum.Critical);
criteria.InsertTime.SortDesc(1);
AlertsCount.Text = controller.GetAlertsCount(criteria).ToString();
alerts = controller.GetAlerts(criteria);
if (alerts.Count > 0) {
int rows = 0;
foreach (Alert alert in alerts)
{
TableRow alertRow = new TableRow();
alertRow.Attributes.Add("class", "AlertTableCell");
TableCell component = new TableCell();
TableCell source = new TableCell();
TableCell description = new TableCell();
description.Wrap = false;
component.Text = alert.Component;
component.Wrap = false;
source.Text = alert.Source;
source.Wrap = false;
string content = alert.Content.GetElementsByTagName("Message").Item(0).InnerText;
description.Text = content.Length < 50 ? content : content.Substring(0, 50);
description.Text += " ...";
description.Wrap = false;
alertRow.Cells.Add(component);
alertRow.Cells.Add(source);
alertRow.Cells.Add(description);
AlertTable.Rows.Add(alertRow);
rows++;
if (rows == 5) break;
}
}
}
public AlertSelectCriteria(AlertSelectCriteria other)
: base(other)
{}
private bool ArchiveLogs(ServerFilesystemInfo archiveFs)
{
string archivePath = Path.Combine(archiveFs.Filesystem.FilesystemPath, "AlertLog");
DateTime cutOffTime = Platform.Time.Date.AddDays(ServiceLockSettings.Default.AlertCachedDays*-1);
AlertSelectCriteria criteria = new AlertSelectCriteria();
criteria.InsertTime.LessThan(cutOffTime);
criteria.InsertTime.SortAsc(0);
using (ServerExecutionContext context = new ServerExecutionContext())
{
IAlertEntityBroker broker = context.ReadContext.GetBroker<IAlertEntityBroker>();
ImageServerLogWriter<Alert> writer = new ImageServerLogWriter<Alert>(archivePath, "Alert");
List<ServerEntityKey> keyList = new List<ServerEntityKey>(500);
try
{
broker.Find(criteria, delegate(Alert result)
{
keyList.Add(result.Key);
// If configured, don't flush to disk. We just delete the contents of keyList below.
if (!ServiceLockSettings.Default.AlertDelete)
{
if (writer.WriteLog(result, result.InsertTime))
{
// The logs been flushed, delete the log entries cached.
using (
IUpdateContext update =
PersistentStoreRegistry.GetDefaultStore().OpenUpdateContext(UpdateContextSyncMode.Flush)
)
{
IApplicationLogEntityBroker updateBroker =
update.GetBroker<IApplicationLogEntityBroker>();
foreach (ServerEntityKey key in keyList)
updateBroker.Delete(key);
update.Commit();
}
keyList = new List<ServerEntityKey>();
}
}
});
writer.FlushLog();
if (keyList.Count > 0)
{
using (
IUpdateContext update =
PersistentStoreRegistry.GetDefaultStore().OpenUpdateContext(UpdateContextSyncMode.Flush))
{
IAlertEntityBroker updateBroker = update.GetBroker<IAlertEntityBroker>();
foreach (ServerEntityKey key in keyList)
updateBroker.Delete(key);
update.Commit();
}
}
}
catch (Exception e)
{
Platform.Log(LogLevel.Error, e, "Unexpected exception when purging Alert log files.");
writer.Dispose();
return false;
}
writer.Dispose();
return true;
}
}
public int GetAlertsCount(AlertSelectCriteria criteria)
{
return _adaptor.GetCount(criteria);
}
public IList<Alert> GetRangeAlerts(AlertSelectCriteria criteria, int startIndex, int maxRows)
{
return _adaptor.GetRange(criteria, startIndex, maxRows);
}
public IList<Alert> GetAlerts(AlertSelectCriteria criteria)
{
return _adaptor.Get(criteria);
}
public IList<Alert> GetAllAlerts()
{
AlertSelectCriteria searchCriteria = new AlertSelectCriteria();
searchCriteria.InsertTime.SortAsc(0);
return GetAlerts(searchCriteria);
}
private AlertSelectCriteria GetSelectCriteria()
{
var criteria = new AlertSelectCriteria();
QueryHelper.SetGuiStringCondition(criteria.Component, Component);
if (!String.IsNullOrEmpty(InsertTime))
{
DateTime lowerDate = DateTime.ParseExact(InsertTime, DateFormats, null);
DateTime upperDate = DateTime.ParseExact(InsertTime, DateFormats, null).Add(new TimeSpan(23, 59, 59));
criteria.InsertTime.Between(lowerDate, upperDate);
}
if (Level != null)
criteria.AlertLevelEnum.EqualTo(Level);
if (Category != null)
criteria.AlertCategoryEnum.EqualTo(Category);
return criteria;
}
public AlertSelectCriteria(AlertSelectCriteria other)
: base(other)
{
}