/// <summary>
/// Adds an special cache dependency for the file (used by custom tags or FM sources)
/// </summary>
/// <param name="cd">The CacheDependency class to add as a dependency</param>
internal void AddCacheDependency(CacheDependency cd)
{
if (this.SpecialDependencies == null)
{
this.SpecialDependencies = new List <CacheDependency> {
cd
};
}
else
{
//CHeck if it's already added
bool alreadyPresent = this.SpecialDependencies.Any(
item => item.GetUniqueID() == cd.GetUniqueID()
);
if (!alreadyPresent)
{
this.SpecialDependencies.Add(cd);
}
}
}
private void UpdateFromDependencies(HttpResponse response)
{
CacheDependency dep = null;
if ((this._etag == null) && this._generateEtagFromFiles)
{
dep = response.CreateCacheDependencyForResponse();
if (dep == null)
{
return;
}
string uniqueID = dep.GetUniqueID();
if (uniqueID == null)
{
throw new HttpException(System.Web.SR.GetString("No_UniqueId_Cache_Dependency"));
}
DateTime time = this.UpdateLastModifiedTimeFromDependency(dep);
StringBuilder builder = new StringBuilder(0x100);
builder.Append(HttpRuntime.AppDomainIdInternal);
builder.Append(uniqueID);
builder.Append("+LM");
builder.Append(time.Ticks.ToString(CultureInfo.InvariantCulture));
this._etag = MachineKeySection.HashAndBase64EncodeString(builder.ToString());
this._etag = "\"" + this._etag + "\"";
}
if (this._generateLastModifiedFromFiles)
{
if (dep == null)
{
dep = response.CreateCacheDependencyForResponse();
if (dep == null)
{
return;
}
}
DateTime utcDate = this.UpdateLastModifiedTimeFromDependency(dep);
this.UtcSetLastModified(utcDate);
}
}
private static T LoadInternal(Guid siteId)
{
T config = new T();
config.siteId = siteId;
using (SPSite elevatedSite = new SPSite(siteId, SPUserToken.SystemAccount)) {
SiteConfigProviderAttribute attribute = typeof(T).GetCustomAttribute <SiteConfigProviderAttribute>(false);
ISiteConfigProvider provider;
if (attribute == null)
{
provider = new SiteConfigProvider();
}
else
{
provider = (ISiteConfigProvider)attribute.ProviderType.CreateInstance();
}
provider.Initialize(elevatedSite);
foreach (PropertyDescriptor pd in TypeDescriptor.GetProperties(config))
{
ISiteConfigEntry entry = provider.GetEntry(pd.Name);
bool needUpdate = false;
bool needCreate = false;
if (entry == null || entry.UseDefaultValue)
{
string defaultValueString = String.Empty;
try {
pd.ResetValue(config);
defaultValueString = Convert.ToString(pd.GetValue(config));
} catch (ArgumentException) {
DefaultValueAttribute defaultValueAttribute = (DefaultValueAttribute)pd.Attributes[typeof(DefaultValueAttribute)];
if (defaultValueAttribute != null && defaultValueAttribute.Value != null)
{
object defaultValue = ParseValue(pd, defaultValueAttribute.Value);
pd.SetValue(config, defaultValue);
defaultValueString = Convert.ToString(defaultValueAttribute.Value);
}
}
if (entry == null)
{
needCreate = true;
entry = (pd.PropertyType == typeof(SecureString)) ? new SecureEntry()
{
Key = pd.Name
} : new Entry()
{
Key = pd.Name
};
}
if (!CompareString(entry.Value, defaultValueString))
{
entry.Value = defaultValueString;
needUpdate |= CompareString(entry.Value, defaultValueString);
}
}
else
{
object typedValue = ParseValueFromEntry(pd, entry);
pd.SetValue(config, typedValue);
}
if (!CompareString(entry.Category, pd.Category))
{
entry.Category = pd.Category;
needUpdate |= CompareString(entry.Category, pd.Category);
}
if (!CompareString(entry.Description, pd.Description))
{
entry.Description = pd.Description;
needUpdate |= CompareString(entry.Description, pd.Description);
}
if (needCreate)
{
provider.CreateEntry(entry);
}
else if (needUpdate)
{
provider.UpdateEntry(entry);
}
if (pd.GetValue(config) == null && pd.PropertyType.GetConstructor(new Type[0]) != null)
{
pd.SetValue(config, Activator.CreateInstance(pd.PropertyType));
}
}
provider.CommitChanges();
if (HttpContext.Current != null)
{
CacheDependency cacheDependency = provider.GetCacheDependency();
if (cacheDependency != null)
{
HttpContext.Current.Cache.Add(cacheDependency.GetUniqueID(), new object(), cacheDependency, Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, CacheItemPriority.Normal, (k, v, r) => {
Logger.Info("Site config ({0}) flushed due to cache dependency.", typeof(T).FullName);
Invalidate(siteId);
});
}
}
}
return(config);
}
