public IEnumerable<KeysDataRow> EnumerateTemplates()
{
string templatesFolder = TemplateCashProvider.TemplatesFolder();
foreach (string path in Directory.EnumerateFiles(templatesFolder, "*.dbo"))
{
Guid id;
if (!Guid.TryParse(Path.GetFileNameWithoutExtension(path), out id))
this._log.Warn((object) ("Unable to parse id from file name" + Path.GetFileName(path)));
KeysDataRow template = this.TryReadTemplateFromCache(id);
if (template != null)
yield return template;
}
}
public bool TryAdd(KeysDataRow templateData)
{
try
{
using (FileStream fileStream = new FileStream(TemplateCashProvider.GetCachedTemplateFileName(templateData.Id), FileMode.Create, FileAccess.Write))
new BinaryFormatter().Serialize((Stream) fileStream, (object) templateData);
return true;
}
catch (Exception ex)
{
this._log.Warn((object) ex.Message);
return false;
}
}
private KeysDataRow TryReadTemplateFromCache(Guid id)
{
string templateFileName = TemplateCashProvider.GetCachedTemplateFileName(id);
try
{
using (FileStream fileStream = new FileStream(templateFileName, FileMode.Open, FileAccess.Read))
return new BinaryFormatter().Deserialize((Stream) fileStream) as KeysDataRow;
}
catch (SerializationException ex)
{
this._log.Warn((object) ("Delete invalid template file " + Path.GetFileName(templateFileName)));
this.TryDeleteFile(templateFileName);
return (KeysDataRow) null;
}
}
public bool TryRemove(Guid id)
{
try
{
string templateFileName = TemplateCashProvider.GetCachedTemplateFileName(id);
if (File.Exists(templateFileName))
File.Delete(templateFileName);
return true;
}
catch (Exception ex)
{
this._log.Warn((object) ex.Message);
return false;
}
}