public void AddOrUpdate(string prefix, string url, out bool updated)
{
lock (this)
{
var existing = this.database.QueryOver <InterwikiPrefix>()
.Where(x => x.Prefix == prefix)
.SingleOrDefault();
updated = true;
if (existing == null)
{
updated = false;
existing = new InterwikiPrefix {
Prefix = prefix
};
}
existing.Url = url;
this.database.SaveOrUpdate(existing);
this.database.Flush();
}
}
public (int upToDate, int created, int updated, int deleted) Import(IMediaWikiApi mediaWikiApi)
{
lock (this)
{
this.logger.Debug("Fetching existing prefixes");
var allPrefixes = this.database.QueryOver <InterwikiPrefix>()
.List().ToDictionary(x => x.Prefix);
this.logger.Debug("Marking existing as absent");
foreach (var prefix in allPrefixes)
{
prefix.Value.AbsentFromLastImport = true;
prefix.Value.CreatedSinceLast = false;
}
this.logger.Debug("Downloading latest map");
var prefixesToImport = mediaWikiApi.GetInterwikiPrefixes().ToList();
int deletedIw = 0, createdIw = 0, updatedIw = 0, upToDateIw = 0;
this.logger.Debug("Iterating import");
int i = 0;
foreach (var prefix in prefixesToImport)
{
this.logger.DebugFormat(
" processed {0} of {1} - {2}%",
i,
prefixesToImport.Count,
i / prefixesToImport.Count * 100);
i++;
if (allPrefixes.ContainsKey(prefix.Prefix))
{
allPrefixes[prefix.Prefix].AbsentFromLastImport = false;
// present, are we up-to-date?
if (allPrefixes[prefix.Prefix].Url == prefix.Url)
{
// yes
upToDateIw++;
continue;
}
var existingImport = this.database.QueryOver <InterwikiPrefix>()
.Where(x => x.ImportedAs == prefix.Prefix)
.SingleOrDefault();
if (existingImport == null)
{
existingImport = new InterwikiPrefix();
}
existingImport.Prefix = prefix.Prefix + "-import";
existingImport.ImportedAs = prefix.Prefix;
existingImport.Url = prefix.Url;
existingImport.AbsentFromLastImport = false;
this.database.SaveOrUpdate(existingImport);
updatedIw++;
}
else
{
this.database.Save(
new InterwikiPrefix
{
Prefix = prefix.Prefix, Url = prefix.Url,
AbsentFromLastImport = false, CreatedSinceLast = true
});
createdIw++;
}
}
this.logger.Debug("Saving absent prefixes");
foreach (var prefix in allPrefixes.Where(x => x.Value.AbsentFromLastImport))
{
deletedIw++;
this.database.Update(prefix.Value);
}
this.logger.Debug("Flushing session");
this.database.Flush();
return(upToDateIw, createdIw, updatedIw, deletedIw);
}
}
