/// <summary>
/// Standart constructor.
/// </summary>
/// <param name="local">Local change.</param>
/// <param name="remote">Remote change.</param>
internal SideChooseForm(Change local, Change remote)
{
this.Text = "Výběr: " + local.TimeEventHash;
InitializeComponent();
DialogResult = DialogResult.Cancel;
labelHash.Text = local.TimeEventHash;
TimeEvent localTe = local.TimeEvent;
TimeEvent remoteTe = remote.TimeEvent;
switch (local.Type)
{
case Change.ChangeType.Add:
labelLocalChange.Text = "Přidána událost:";
setLocaleValues(localTe);
break;
case Change.ChangeType.Edit:
labelLocalChange.Text = "Editována událost:";
setLocaleValues(localTe);
break;
case Change.ChangeType.Del:
labelLocalChange.Text = "Smazána událost:";
hideLocalValues();
break;
default:
break;
}
switch (remote.Type)
{
case Change.ChangeType.Add:
labelRemoteChange.Text = "Přidána událost:";
setRemoteValues(remoteTe);
break;
case Change.ChangeType.Edit:
labelRemoteChange.Text = "Editována událost:";
setRemoteValues(remoteTe);
break;
case Change.ChangeType.Del:
labelRemoteChange.Text = "Smazána událost:";
hideRemoteValues();
break;
default:
break;
}
}
/// <summary>
/// Write content of change cache into Database.
/// </summary>
public void WriteCaches(Queue<TimeEvent> newTimeEvents, Queue<Change> newChanges)
{
lock (newTimeEvents)
{
TimeEvent[] timeEvents = new TimeEvent[newTimeEvents.Count];
int i = 0;
while (true)
{
if (newTimeEvents.Count == 0)
break;
timeEvents[i] = newTimeEvents.Dequeue();
i++;
}
lock (db)
if (timeEvents.Length != 0)
db.ExecuteAddEditChanges(timeEvents);
newTimeEvents.Clear();
}
lock (newChanges)
{
Change[] changes = new Change[newChanges.Count];
int i = 0;
while (true)
{
if (newChanges.Count == 0)
break;
Change c = newChanges.Dequeue();
c.ChangeDate = DateTime.Now;
changes[i] = c;
i++;
}
lock (db)
if (changes.Length != 0)
db.InsertChange(changes);
newChanges.Clear();
}
}
/// <summary>
/// Execute new change in local.
/// </summary>
/// <param name="c">Change that should be executed.</param>
/// <param name="te">TimeEvent that should be executed.</param>
public void ExecuteChange(Change c, Queue<TimeEvent> newTimeEvents, Queue<Change> newChanges)
{
lock (db)
switch (c.Type)
{
case Change.ChangeType.Add:
case Change.ChangeType.Edit:
if (c.TimeEvent == null)
throw new NullReferenceException();
lock (newTimeEvents)
newTimeEvents.Enqueue(c.TimeEvent);
break;
case Change.ChangeType.Del:
db.ExecuteDelChange(c.TimeEventHash);
break;
}
lock (newChanges)
newChanges.Enqueue(c);
}
/// <summary>
/// Add to result and change its side if it's necessary.
/// </summary>
/// <param name="local">Local change.</param>
/// <param name="remote">Remote change.</param>
/// <returns>True if it is neccesary to decide, False otherwise.</returns>
public bool AddToResultsAndReturnIfItIsNecessary(Change local, Change remote)
{
lock (resultChanges)
if (local.Type == Change.ChangeType.Del && (remote.Type == Change.ChangeType.Add || remote.Type == Change.ChangeType.Edit))
{
resultChanges[local.TimeEventHash] = ChangeSide.NotDecided;
return true;
}
else if ((local.Type == Change.ChangeType.Add || local.Type == Change.ChangeType.Edit) && remote.Type == Change.ChangeType.Del)
{
resultChanges[local.TimeEventHash] = ChangeSide.NotDecided;
return true;
}
else if (local.Type == Change.ChangeType.Del && remote.Type == Change.ChangeType.Del)
{
resultChanges[local.TimeEventHash] = ChangeSide.NotNecessaryUpdate;
return false;
}
else if (local.TimeEvent.HasSameDataAs(remote.TimeEvent))
{
resultChanges[local.TimeEventHash] = ChangeSide.NotNecessaryUpdate;
return false;
}
else
{
resultChanges[local.TimeEventHash] = ChangeSide.NotDecided;
return true;
}
}
/// <summary>
/// Parse Record received by connection into Chnage and TimeEvent.
/// </summary>
/// <param name="record">String that should be parsed.</param>
/// <param name="c">Change, that was parsed.</param>
/// <param name="te">TimeEvent, that was parsed</param>
public void ParseRecord(string record, out Change c, out TimeEvent te)
{
var items = record.Split('*');
c = Change.Parse(items[0]);
if (items[1] == "null")
te = null;
else
te = TimeEvent.Parse(items[1]);
}
/// <summary>
/// Send Changes to writer.
/// </summary>
/// <param name="writer">Where should be chnage send through.</param>
/// <param name="c">Which change should be send.</param>
/// <param name="te">Which TimeEvent should be send.</param>
public void SendChange(TextWriter writer, Change c, TimeEvent te)
{
if (c.Type == Change.ChangeType.Del)
writer.WriteLine(c.GetSynchronizationString() + "*" + "null" + "*?");
else
writer.WriteLine(c.GetSynchronizationString() + "*" + te.GetSynchronizationString() + "*?");
}
