private static bool LoadCache()
{
try
{
if (InitializeCache())
{
Console.WriteLine("Loading products into " + _cache.ToString() + "...");
Hashtable keyVals = _db.LoadProducts();
String[] keys = new String[keyVals.Keys.Count];
CacheItem[] items = new CacheItem[keyVals.Keys.Count];
IDictionaryEnumerator ide = keyVals.GetEnumerator();
int i = 0;
while (ide.MoveNext())
{
keys[i] = ide.Key.ToString();
items[i++] = new CacheItem(ide.Value);
}
_cache.AddBulk(keys, items);
}
else
{
return(false);
}
}
catch (Exception ex)
{
Console.WriteLine("Exception : " + ex.Message);
return(false);
}
return(true);
}
public override IDictionary AddBulk(string[] keys, CacheItem[] items)
{
IDictionary iDict = null;
string exceptionMessage = null;
try
{
iDict = _webCache.AddBulk(keys, items);
}
catch (Exception e)
{
exceptionMessage = e.Message;
throw;
}
finally
{
try
{
if (_debugConfigurations.IsInLoggingInterval())
{
APILogItem logItem = new APILogItem();
logItem.Signature = "AddBulk(string[] keys, CacheItem[] items)";
logItem.NoOfKeys = keys.Length;
logItem.ExceptionMessage = exceptionMessage;
logItem.RuntimeAPILogItem = (RuntimeAPILogItem)_webCache.APILogHashTable[System.Threading.Thread.CurrentThread.ManagedThreadId];
_apiLogger.Log(logItem);
}
}
catch (Exception)
{ }
_webCache.APILogHashTable.Remove(System.Threading.Thread.CurrentThread.ManagedThreadId);
}
return(iDict);
}
/// <summary>
/// This method Adds objects to cache
/// </summary>
/// <returns>List of keys added to cache </returns>
private static string[] AddDataIntoCache()
{
List <Product> products = LoadProductsFromDatabase();
CacheItem[] items = new CacheItem[products.Count];
string[] keys = new String[products.Count];
for (int i = 0; i < products.Count; i++)
{
keys[i] = products[i].Id.ToString();
CacheItem item = new CacheItem(products[i]);
item.Dependency = new CacheDependency(new Dependency(products[i].Id, _connectionString));
items[i] = item;
}
_cache.AddBulk(keys, items, DSWriteOption.None, null);
// Print output on console
Console.WriteLine("Items are added to Cache.");
return(keys);
}
/// <summary>
/// This method adds multiple objects in the cache using bulk api
/// </summary>
/// <param name="keys"> List of string keys that will be inserted in the cache </param>
/// <param name="products"> products that will be inserted in the cache </param>
private static void AddMultipleObjectsToCache(string[] keys, Product[] products)
{
// Adding Bulk Items
// Bulk operation returns
IDictionary result = _cache.AddBulk(keys, new CacheItem[] { new CacheItem(products[0]), new CacheItem(products[1]), new CacheItem(products[2]), new CacheItem(products[3]) });
if (result.Count == 0)
{
// Print output on console
Console.WriteLine("\nAll items are successfully added to cache.");
}
else
{
// Print output on console
Console.WriteLine("\nOne or more items could not be added to the cache. Iterate hashmap for details.");
// Iterate hashmap
for (IEnumerator iter = result.Values.GetEnumerator(); iter.MoveNext();)
{
Product product = (Product)iter;
PrintProductDetails(product);
}
}
}
