public bool Equals(SerializableVersion sv)
{
// If parameter is null return false:
if ((object)sv == null)
{
return(false);
}
// Return true if the fields match:
return(this.Major == sv.Major && this.Minor == sv.Minor && this.Revision == sv.Revision && this.Build == sv.Build);
}
private IEnumerable <Type> FindUpdateClass(SerializableVersion currentFileVersion)
{
foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
{
foreach (Type type in assembly.GetTypes())
{
SerializableVersion upgradeFrom = type.GetCustomAttributes(typeof(SerializableVersion), true).FirstOrDefault() as SerializableVersion;
if (upgradeFrom == currentFileVersion)
{
yield return(type);
}
}
}
}
internal bool UpdateFile(SerializableVersion fromVersion, Tracker tracker)
{
if (fromVersion == null)
{
return(false);
}
IEnumerable <Type> updaterTypes = FindUpdateClass(fromVersion);
if (updaterTypes.Count() != 1)
{
//no updater found, or too many
return(false);
}
IFileUpdater updater = (IFileUpdater)Activator.CreateInstance(updaterTypes.First());
return(updater.UpdateFile(this.FullDataFilePath, tracker));
}
public static SerializableVersion ParseCurrentFileVersion(XmlNode versionNode)
{
if (versionNode == null)
{
return(null);
}
bool allOK = true;
SerializableVersion ret = new SerializableVersion();
allOK &= Int32.TryParse(versionNode.SelectSingleNode("Build")?.InnerText, out ret.Build);
allOK &= Int32.TryParse(versionNode.SelectSingleNode("Major")?.InnerText, out ret.Major);
allOK &= Int32.TryParse(versionNode.SelectSingleNode("Minor")?.InnerText, out ret.Minor);
allOK &= Int32.TryParse(versionNode.SelectSingleNode("Revision")?.InnerText, out ret.Revision);
if (!allOK)
{
//parse failed
return(null);
}
return(ret);
}