public void SaveAll()
{
lock (saveQueue)
{
using (LogEventDataContext logDBContext = new LogEventDataContext(MainPage.ConnectionString))
{
logDBContext.addEvents(saveQueue.ToList().AsReadOnly());
saveQueue = new Queue<LogEvent>();
}
}
}
private void deleteFromDB(LogEvent logevent)
{
using (LogEventDataContext logDb = new LogEventDataContext(LogEventDataContext.ConnectionString))
{
if (!logDb.DatabaseExists())
{
System.Diagnostics.Debug.WriteLine(this.GetType().Name + ": DB does not exist");
return;
}
logDb.DeleteLogEvent(logevent.EventId);
}
}
private void SendMessages()
{
System.Diagnostics.Debug.WriteLine(this.GetType().Name + ".SendMessages");
using (LogEventDataContext logDb = new LogEventDataContext(LogEventDataContext.ConnectionString))
{
if (!logDb.DatabaseExists())
{
System.Diagnostics.Debug.WriteLine(this.GetType().Name + ": DB does not exist");
return;
}
List<LogEvent> events = logDb.GetLogEvents();
foreach (LogEvent e in events)
{
SendMessage(e);
}
}
System.Diagnostics.Debug.WriteLine(this.GetType().Name + ".AsyncSendMessages event handler finished");
}
public List<LogEvent> GetLogEvents()
{
List<LogEvent> logEventList = null;
using (LogEventDataContext context = new LogEventDataContext(ConnectionString))
{
IQueryable<LogEvent> query =
from le in context.LogEvents
select le;
try
{
logEventList = query.ToList();
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("At LogDatabase: " + e.Message);
}
}
return logEventList;
}
public void DeleteLogEvent(int id)
{
//LogEventDataContext context;
using (LogEventDataContext context = new LogEventDataContext(ConnectionString))
{
IQueryable<LogEvent> query =
from le in context.LogEvents
where le.EventId == id
select le;
LogEvent leToDelete = query.FirstOrDefault();
//context.LogEvents.Attach(leToDelete);
context.LogEvents.DeleteOnSubmit(leToDelete);
context.SubmitChanges();
}
}
public void addEvents(IList<LogEvent> events)
{
using (LogEventDataContext context = new LogEventDataContext(ConnectionString))
{
foreach (LogEvent e in events)
{
LogEvent le = new LogEvent();
e.Time = DeviceTools.GetUnixTime(DateTime.Now);
// add the new logEvent to the context
context.LogEvents.InsertOnSubmit(e);
}
context.SubmitChanges();
}
}
public void addEvent(JObject sensorEvent, String url)
{
using (LogEventDataContext context = new LogEventDataContext(ConnectionString))
{
// create a new LogEvent instance
LogEvent le = new LogEvent();
le.sensorEvent = sensorEvent.ToString();
le.Time = DeviceTools.GetUnixTime(DateTime.Now);
le.relativeUrl = url;
// add the new logEvent to the context
context.LogEvents.InsertOnSubmit(le);
try
{
// save changes to the database
context.SubmitChanges();
}
catch (System.SystemException e)
{
System.Diagnostics.Debug.WriteLine("SQLException" + e);
}
}
}
/// <summary>
/// Creates and adds a few ItemViewModel objects into the Items collection.
/// </summary>
public void GetLogData()
{
const string ConnectionString = @"Data Source = 'isostore:/LogEventDB.sdf';";
using (LogEventDataContext logDBContext = new LogEventDataContext(ConnectionString))
{
if (!logDBContext.DatabaseExists())
{
// create database if it does not exist
try
{
logDBContext.CreateDatabase();
}
catch (InvalidOperationException ioe)
{
System.Diagnostics.Debug.WriteLine("InvalidOperationException while creating database..." + ioe);
}
}
GetLogEvents(logDBContext);
}
}
private void GetLogEvents(LogEventDataContext logDBContext)
{
List<LogEvent> list = logDBContext.GetLogEvents();
if (list != null)
{
LogData.Clear();
int listCount = list.Count;
for (int i = listCount - 1; i >= 0; i--)
{
LogEvent e = list[i];
LogData.Add(new LogData()
{
LogDataHeading = DeviceTools.GetDateTime(e.Time).ToString(),
LogDataContent = e.sensorEvent.ToString()
});
}
}
}
