/// <summary>
/// Gets a single Virtual MTA Group.
/// </summary>
/// <param name="id">ID of the Virtual MTA Group to get.</param>
/// <returns>The Virtual MTA Group or NULL if none exist with ID</returns>
public static VirtualMtaGroup GetVirtualMtaGroup(int id)
{
VirtualMtaGroup grp = VirtualMtaGroupDB.GetVirtualMtaGroup(id);
grp.VirtualMtaCollection = VirtualMtaDB.GetVirtualMtasInVirtualMtaGroup(grp.ID);
return(grp);
}
/// <summary>
/// Get a collection of all of the Virtual MTA Groups.
/// </summary>
/// <returns></returns>
public static IList <VirtualMtaGroup> GetAllVirtualMtaGroups()
{
IList <VirtualMtaGroup> ipGroups = VirtualMtaGroupDB.GetVirtualMtaGroups();
// Get all the groups Virtual MTAs.
foreach (VirtualMtaGroup grp in ipGroups)
{
grp.VirtualMtaCollection = VirtualMtaDB.GetVirtualMtasInVirtualMtaGroup(grp.ID);
}
return(ipGroups);
}
/// <summary>
/// Gets the specfied MTA IP Group
/// </summary>
/// <param name="id">ID of the group to get.</param>
/// <returns>The IP Group or NULL if doesn't exist.</returns>
public static VirtualMtaGroup GetVirtualMtaGroup(int id)
{
VirtualMtaGroup group = null;
// Try and get IPGroup from the in memory collection.
if (_vmtaGroups.TryGetValue(id, out group))
{
// Only cache IP Groups for N minutes.
if (group.CreatedTimestamp.AddMinutes(MtaParameters.MTA_CACHE_MINUTES) > DateTime.UtcNow)
{
return(group);
}
}
// We need to goto the database to get the group. Lock!
lock (_MtaVirtualMtaGroupSyncLock)
{
// Check that something else didn't already load from the database.
// If it did then we can just return that.
_vmtaGroups.TryGetValue(id, out group);
if (group != null && group.CreatedTimestamp.AddMinutes(MtaParameters.MTA_CACHE_MINUTES) > DateTime.UtcNow)
{
return(group);
}
// Get group from the database.
group = VirtualMtaGroupDB.GetVirtualMtaGroup(id);
// Group doesn't exist, so don't try and get it's IPs
if (group == null)
{
return(null);
}
// Got the group, go get it's IPs.
group.VirtualMtaCollection = VirtualMtaDB.GetVirtualMtasInVirtualMtaGroup(id);
// Add the group to collection, so others can use it.
_vmtaGroups.AddOrUpdate(id, group, new Func <int, VirtualMtaGroup, VirtualMtaGroup>(delegate(int key, VirtualMtaGroup existing)
{
return(group);
}));
return(group);
}
}