public static HostsUpdateResult Added(HostsEntry entry)
{
return(new HostsUpdateResult(entry.HostName)
{
Status = HostsUpdateResultType.Added,
NewAddress = entry.Address,
OldAddress = IPAddress.None
});
}
public static HostsUpdateResult Updated(HostsEntry entry, IPAddress newAddress)
{
return(new HostsUpdateResult(entry.HostName)
{
Status = HostsUpdateResultType.Updated,
NewAddress = newAddress,
OldAddress = entry.Address
});
}
public static HostsUpdateResult NoChange(HostsEntry entry)
{
return(new HostsUpdateResult(entry.HostName)
{
Status = HostsUpdateResultType.Unchanged,
NewAddress = entry.Address,
OldAddress = entry.Address
});
}
public HostsUpdateResult Upsert(IPAddress address, string hostName, string comment = null)
{
Guard.IsNotNullOrWhiteSpace(hostName, nameof(hostName));
var existing = InternalEntries.SingleOrDefault(entry => entry.HostName == hostName);
if (existing != null)
{
if (existing.Address.Equals(address))
{
return(HostsUpdateResult.NoChange(existing));
}
InternalEntries.Remove(existing);
InternalEntries.Add(new HostsEntry(address, hostName, comment));
HasUnsavedChanges = true;
return(HostsUpdateResult.Updated(existing, address));
}
var addedEntry = new HostsEntry(address, hostName, comment);
InternalEntries.Add(addedEntry);
HasUnsavedChanges = true;
return(HostsUpdateResult.Added(addedEntry));
}
