public AzureOutputCacheStorageProvider(ShellSettings shellSettings, IAzureOutputCacheHolder cacheHolder)
{
var region = shellSettings.Name;
// Azure Cache supports only alphanumeric strings for regions, but Orchard supports some
// non-alphanumeric characters in tenant names. Remove all non-alphanumering characters
// from the region, and append the hash code of the original string to mitigate the risk
// of two distinct original region strings yielding the same transformed region string.
_regionAlphaNumeric = new String(Array.FindAll(region.ToCharArray(), Char.IsLetterOrDigit)) + region.GetHashCode().ToString(CultureInfo.InvariantCulture);
_cache = cacheHolder.TryGetDataCache(() => {
CacheClientConfiguration cacheConfig;
try {
cacheConfig = CacheClientConfiguration.FromPlatformConfiguration(shellSettings.Name, Constants.OutputCacheSettingNamePrefix);
cacheConfig.Validate();
}
catch (Exception ex) {
throw new Exception(String.Format("The {0} configuration settings are missing or invalid.", Constants.OutputCacheFeatureName), ex);
}
var cache = cacheConfig.CreateCache();
cache.CreateRegion(_regionAlphaNumeric);
return(cache);
});
}
public AzureOutputCacheStorageProvider(ShellSettings shellSettings, IAzureOutputCacheHolder cacheHolder) {
var region = shellSettings.Name;
// Azure Cache supports only alphanumeric strings for regions, but Orchard supports some
// non-alphanumeric characters in tenant names. Remove all non-alphanumering characters
// from the region, and append the hash code of the original string to mitigate the risk
// of two distinct original region strings yielding the same transformed region string.
_regionAlphaNumeric = new String(Array.FindAll(region.ToCharArray(), Char.IsLetterOrDigit)) + region.GetHashCode().ToString(CultureInfo.InvariantCulture);
_cache = cacheHolder.TryGetDataCache(() => {
CacheClientConfiguration cacheConfig;
try {
cacheConfig = CacheClientConfiguration.FromPlatformConfiguration(shellSettings.Name, Constants.OutputCacheSettingNamePrefix);
cacheConfig.Validate();
}
catch (Exception ex) {
throw new Exception(String.Format("The {0} configuration settings are missing or invalid.", Constants.OutputCacheFeatureName), ex);
}
var cache = cacheConfig.CreateCache();
cache.CreateRegion(_regionAlphaNumeric);
return cache;
});
}
