public void InitializeCache(string cache)
{
_cache = Alachisoft.NCache.Web.Caching.NCache.InitializeCache(cache);
}
public async Task <Author> GetAuthor(int id)
{
_cache = NCache.InitializeCache("CacheName");
var cacheKey = "Key";
Author author = null;
if (_cache != null)
{
author = _cache.Get(cacheKey) as Author;
}
if (author == null) //Data not available in the cache
{
//Write code here to fetch the author
// object from the database
if (author != null)
{
if (_cache != null)
{
_cache.Insert(cacheKey, author, null,
Alachisoft.NCache.Web.Caching.Cache.NoAbsoluteExpiration,
TimeSpan.FromMinutes(10),
Alachisoft.NCache.Runtime.
CacheItemPriority.Default);
}
}
}
return(author);
}
public void Add(string key, object value)
{
Alachisoft.NCache.Web.Caching.Cache cache = (Alachisoft.NCache.Web.Caching.Cache)_caches[_primaryCache];
if (cache != null)
{
cache.Add(key, TagUtil.CreateTaggedCacheItem(value));
}
}
public void Dispose()
{
if (_cache == null)
return;
_cache.Dispose();
_cache = null;
}
public void Dispose()
{
if (_cache == null)
{
return;
}
_cache.Dispose();
_cache = null;
}
public void InsertAsync(string sessionId, string key, object value, CacheDependency dependency, DateTime absoluteExpiration, TimeSpan slidingExpiration, CacheItemPriority priority)
{
Alachisoft.NCache.Web.Caching.Cache cache = null;
object obj = null;
GetCache(sessionId, key, out obj, "", "", out cache, false);
if (cache != null)
{
cache.InsertAsync(key, TagUtil.CreateTaggedCacheItem(value, dependency, absoluteExpiration, slidingExpiration, priority), DSWriteOption.None, null);
}
}
public void InsertAsync(string sessionId, string key, object value)
{
Alachisoft.NCache.Web.Caching.Cache cache = null;
object obj = null;
GetCache(sessionId, key, out obj, "", "", out cache, false);
if (cache != null)
{
cache.InsertAsync(key, TagUtil.CreateTaggedCacheItem(value), null, null, null);
}
}
public void RemoveAsync(string sessionId, string key)
{
Alachisoft.NCache.Web.Caching.Cache cache = null;
object obj = null;
GetCache(sessionId, key, out obj, "", "", out cache, false);
if (cache != null)
{
cache.RemoveAsync(key, null, DSWriteOption.None, null);
}
}
public bool Contains(string sessionId, string key)
{
Alachisoft.NCache.Web.Caching.Cache cache = null;
object obj = null;
GetCache(sessionId, key, out obj, "", "", out cache, false);
if (cache != null)
{
return(cache.Contains(key));
}
return(false);
}
public bool Contains(string key)
{
Alachisoft.NCache.Web.Caching.Cache cache = (Alachisoft.NCache.Web.Caching.Cache)_caches[_primaryCache];
if (cache != null)
{
return(cache.Contains(key));
}
else
{
return(false);
}
}
public IEnumerator GetEnumerator()
{
Alachisoft.NCache.Web.Caching.Cache cache = (Alachisoft.NCache.Web.Caching.Cache)_caches[_primaryCache];
if (cache != null)
{
return(cache.GetEnumerator());
}
else
{
return(null);
}
}
public void InsertAsync(string sessionId, string key, CacheItem item, string group, string subGroup)
{
Alachisoft.NCache.Web.Caching.Cache cache = null;
object obj = null;
GetCache(sessionId, key, out obj, group, subGroup, out cache, false);
if (cache != null)
{
item.Tags = new Runtime.Caching.Tag[] { new Runtime.Caching.Tag(TagUtil.SESSION_TAG) };
cache.InsertAsync(key, item, DSWriteOption.None, null);
}
}
public object Remove(string key)
{
Alachisoft.NCache.Web.Caching.Cache cache = (Alachisoft.NCache.Web.Caching.Cache)_caches[_primaryCache];
if (cache != null)
{
return(cache.Remove(key));
}
else
{
return(null);
}
}
/// <summary>
/// Constructor
/// </summary>
public ThreadContainer(Cache cache, int totalLoopCount, int testCaseIterations, int testCaseIterationDelay, int getsPerIteration, int updatesPerIteration, int dataSize, int expiration, int threadCount, int reportingInterval, int threadIndex)
{
_cache = cache;
_totalLoopCount = totalLoopCount;
_testCaseIterations = testCaseIterations;
_testCaseIterationDelay = testCaseIterationDelay;
_getsPerIteration = getsPerIteration;
_updatesPerIteration = updatesPerIteration;
_dataSize = dataSize;
_expiration = expiration;
_threadCount = threadCount;
_reportingInterval = reportingInterval;
_threadIndex = threadIndex;
_pid = System.Diagnostics.Process.GetCurrentProcess().Id;
}
public object Get(string sessionId, string key, string group, string subGroup)
{
object obj = null;
Alachisoft.NCache.Web.Caching.Cache cache = null;
_sync.AcquireReaderLock(Timeout.Infinite);
try
{
GetCache(sessionId, key, out obj, group, subGroup, out cache, true);
return(obj);
}
finally
{
_sync.ReleaseReaderLock();
}
}
public object Get(string sessionId, string key, ref LockHandle lockHandle, bool acquireLock, bool enableRetry)
{
object obj = null;
Alachisoft.NCache.Web.Caching.Cache cache = null;
_sync.AcquireReaderLock(Timeout.Infinite);
try
{
GetCache(sessionId, key, out obj, null, null, out cache, true, ref lockHandle, acquireLock);
return(obj);
}
finally
{
_sync.ReleaseReaderLock();
}
}
public NCacheWrapper(MemoryCacheOptions options)
{
if (!NCacheConfiguration.IsConfigured)
{
throw new Exception("NCache initialization configuration is not provided. Please use Alachisoft.NCache.EntityFrameworkCore.NCacheConfiguration.Configure() method to configure NCache before using it.");
}
if (NCacheConfiguration.InitParams != null)
{
_nCache = Web.Caching.NCache.InitializeCache(NCacheConfiguration.CacheId, NCacheConfiguration.InitParams);
}
else
{
_nCache = Web.Caching.NCache.InitializeCache(NCacheConfiguration.CacheId);
}
_defaultKeyGen = new DefaultKeyGenerator();
}
public void Insert(string sessionId, string key, CacheItem item, LockHandle lockHandle, bool releaseLock, bool enableRetry)
{
Alachisoft.NCache.Web.Caching.Cache cache = null;
object obj = null;
_sync.AcquireReaderLock(Timeout.Infinite);
try
{
GetCache(sessionId, key, out obj, "", "", out cache, false);
if (cache != null)
{
item.Tags = new Runtime.Caching.Tag[] { new Runtime.Caching.Tag(TagUtil.SESSION_TAG) };
cache.Insert(key, item, lockHandle, releaseLock);
}
}
finally
{
_sync.ReleaseReaderLock();
}
}
public void Unlock(string sessionId, string key)
{
object obj = null;
Alachisoft.NCache.Web.Caching.Cache cache = null;
_sync.AcquireReaderLock(Timeout.Infinite);
try
{
GetCache(sessionId, key, out obj, null, null, out cache, true);
if (cache != null)
{
cache.Unlock(key);
}
}
finally
{
_sync.ReleaseReaderLock();
}
}
public object Remove(string sessionId, string key, bool enableRetry)
{
Alachisoft.NCache.Web.Caching.Cache cache = null;
object obj = null;
_sync.AcquireReaderLock(Timeout.Infinite);
try
{
GetCache(sessionId, key, out obj, "", "", out cache, false);
if (cache != null)
{
return(cache.Remove(key));
}
}
finally
{
_sync.ReleaseReaderLock();
}
return(null);
}
public void Insert(string sessionId, string key, CacheItem item, string group, string subGroup)
{
Alachisoft.NCache.Web.Caching.Cache cache = null;
object obj = null;
_sync.AcquireReaderLock(Timeout.Infinite);
try
{
GetCache(sessionId, key, out obj, group, subGroup, out cache, false);
if (cache != null)
{
item.Group = group;
item.SubGroup = subGroup;
item.Tags = new Runtime.Caching.Tag[] { new Runtime.Caching.Tag(TagUtil.SESSION_TAG) };
cache.Insert(key, item, DSWriteOption.None, null);
}
}
finally
{
_sync.ReleaseReaderLock();
}
}
public void Dispose()
{
if (_connectionRecycler != null)
{
_connectionRecycler.Dispose();
_connectionRecycler = null;
}
if (_caches == null)
{
return;
}
foreach (DictionaryEntry entry in _caches)
{
Alachisoft.NCache.Web.Caching.Cache cache = entry.Value as Alachisoft.NCache.Web.Caching.Cache;
if (cache != null)
{
cache.Dispose();
}
}
_caches.Clear();
_caches = null;
}
public OperationResult InitCache(string cacheID)
{
if (string.IsNullOrEmpty(cacheID))
ThrowInvalidArgumentsException();
OperationResult returnObject = new OperationResult();
try
{
_cache = Alachisoft.NCache.Web.Caching.NCache.InitializeCache(cacheID);
if (!_cache.Contains(ItemVersionKey))
{
_cache.Add(ItemVersionKey, ItemVersionValue);
}
returnObject = CreateReturnObject(Result.SUCCESS, null);
}
catch (Exception e)
{
ThrowCacheRuntimeException(e);
}
return returnObject;
}
public void Dispose()
{
_nCache = null;
}
private static bool InitializeCache()
{
string cacheName = ConfigurationSettings.AppSettings["CacheName"].ToString();
try
{
_cache = NCache.InitializeCache(cacheName);
_cache.Clear();
return true;
}
catch(Exception e)
{
Console.WriteLine("Error occured while trying to initialize Cache named: [" + cacheName + "] \n"
+ "Exception: " + e.Message);
return false;
}
}
internal void AddCache(string cacheId, Cache cache)
{
_caches[cacheId.ToLower()] = cache;
}
void GetCache(string sessionId, string key, out object value, string group, string subGroup, out Alachisoft.NCache.Web.Caching.Cache cache, bool isGet, ref LockHandle lockHandle, bool acquireLock)
{
value = null;
//Implementation For Raiynair cookieless robots
string sidPrefix = string.Empty;
sidPrefix = sessionId.Substring(0, 4);
if (!_settings.PrimaryCache.Contains(sidPrefix) && _isSessionCookieless)
{
_isSessionCookieless = false;
cache = null;
return;
}
_isSessionCookieless = false;
cache = _caches[GetCache(sessionId)] as Alachisoft.NCache.Web.Caching.Cache;
if (cache != null)
{
if (isGet)
{
value = cache.Get(key, Alachisoft.NCache.Web.Caching.Cache.NoLockExpiration, ref lockHandle, acquireLock);
}
}
else
{
if (_currentSessionCache == null || _currentSessionCache == string.Empty)
{
IDictionaryEnumerator cacheDic = _caches.GetEnumerator();
do
{
/// This code will ensure that primary cache is used first to be lookedin.
if (cache == null)
{
cache = _caches[_primaryCache] as Alachisoft.NCache.Web.Caching.Cache;
}
else
{
cache = (Alachisoft.NCache.Web.Caching.Cache)cacheDic.Value;// select the cache from enumerator.
// primary cache is already traversed so no need to do it again.
if (cache.ToString().Equals(_primaryCache))
{
continue;
}
}
if (isGet)
{
value = cache.Get(key, Alachisoft.NCache.Web.Caching.Cache.NoLockExpiration, ref lockHandle, acquireLock);
}
else
{
if (cache.Contains(key))
{
value = new object();
break;
}
}
} while (cacheDic.MoveNext() && value == null);
if (value != null) // value was found from one of the caches. so use that cache for all further operations during this HTTP request.
{
_currentSessionCache = cache.ToString();
}
else// value wasn't found from any of the caches. thus use hte primary cache for all further operations.
{
_currentSessionCache = _primaryCache;
}
}
else
{
cache = _caches[_currentSessionCache] as Alachisoft.NCache.Web.Caching.Cache;
if (isGet)
{
value = cache.Get(key, Alachisoft.NCache.Web.Caching.Cache.NoLockExpiration, ref lockHandle, acquireLock);
}
}
}
}
public NCacheQueryProvider(Cache cache)
{
_cache = cache;
}
public bool Load()
{
reloadTimer.Stop();
bool loaded = true;
try
{
cache = NCache.Web.Caching.NCache.InitializeCache(cacheName);
}
catch (Exception ex)
{
loaded = false;
FileBasedTraceProvider.Current.WriteTrace(TraceSeverity.Exception, "Could not initialize cache due to exception: {0}", ex.Message);
}
Loaded = loaded;
if (!loaded)
ScheduleReload();
return loaded;
}
void ScheduleReload()
{
Loaded = false;
if (cache != null)
cache.Dispose();
cache = null;
if (RetryInterval > 0)
{
reloadTimer.Interval = RetryInterval * 1000; // convert to miliseconds
reloadTimer.Start();
}
}
public void InitializeCache(string cache)
{
_cache = Alachisoft.NCache.Web.Caching.NCache.InitializeCache(cache);
}
public BulkInsertCommand(string[] keys, CacheItem[] items, Cache parent, string cacheId)
{
base.name = "BulkInsertCommand";
_parent = parent;
base.BulkKeys = keys;
_bulkInsertCommand = new Alachisoft.NCache.Common.Protobuf.BulkInsertCommand();
_bulkInsertCommand.requestId = base.RequestId;
for (int i = 0; i < keys.Length; i++)
{
CacheItem item = items[i];
_insertCommand = new Alachisoft.NCache.Common.Protobuf.InsertCommand();
_insertCommand.key = keys[i];
Alachisoft.NCache.Caching.UserBinaryObject ubObject = Alachisoft.NCache.Caching.UserBinaryObject.CreateUserBinaryObject((byte[])item.Value);
_insertCommand.data.AddRange(ubObject.DataList);
if (item.AbsoluteExpiration != Cache.NoAbsoluteExpiration)
_insertCommand.absExpiration = item.AbsoluteExpiration.Ticks;
if (item.SlidingExpiration != Cache.NoSlidingExpiration)
_insertCommand.sldExpiration = item.SlidingExpiration.Ticks;
_insertCommand.flag = item.FlagMap.Data;
_insertCommand.priority = (int)item.Priority;
// Updated in Version 4.2 [Dated 20-Nov-2013; Author: Sami]
ObjectQueryInfo objectQueryInfo = new ObjectQueryInfo();
if (item.QueryInfo["query-info"] != null)
objectQueryInfo.queryInfo = ProtobufHelper.GetQueryInfoObj(item.QueryInfo["query-info"] as Hashtable);
_insertCommand.objectQueryInfo = objectQueryInfo;
short removeCallbackId = -1;
short updateCallbackId = -1;
EventDataFilter itemUpdateDataFilter = EventDataFilter.None;
EventDataFilter itemRemovedDataFilter = EventDataFilter.None;
if (item.CacheItemRemovedCallback != null)
{
itemRemovedDataFilter = item.ItemRemovedCallabackDataFilter;
short[] callabackIds = _parent.EventManager.RegisterSelectiveEvent(item.CacheItemRemovedCallback, EventType.ItemRemoved, itemRemovedDataFilter);
removeCallbackId = callabackIds[1];
}
if (item.CacheItemUpdatedCallback != null)
{
itemUpdateDataFilter = item.ItemUpdatedCallabackDataFilter;
short[] callabackIds = _parent.EventManager.RegisterSelectiveEvent(item.CacheItemUpdatedCallback, EventType.ItemUpdated, itemUpdateDataFilter);
updateCallbackId = callabackIds[0];
}
_insertCommand.removeCallbackId = removeCallbackId;
_insertCommand.updateCallbackId = updateCallbackId;
_insertCommand.updateDataFilter = (short)itemUpdateDataFilter;
_insertCommand.removeDataFilter = (short)itemRemovedDataFilter;
_bulkInsertCommand.insertCommand.Add(_insertCommand);
}
}
private short _updateEventRegisrationSequenceId = REFSTART; //Significant difference from old callback numbers
#endregion Fields
#region Constructors
internal EventManager(string cacheName, NCacheLogger logger,Cache cache)
{
_cacheName = cacheName;
_logger = logger;
_cache = cache;
}
public BulkAddCommand(string[] keys, CacheItem[] items, short onDsItemsAddedCallback,
Alachisoft.NCache.Web.Caching.Cache parent, string providerName, string cacheId, int methodOverload,
string clientId, short updateCallbackId, short removedCallbackId, EventDataFilter updateCallbackFilter,
EventDataFilter removeCallabackFilter, bool returnVersions,
CallbackType callbackType = Runtime.Events.CallbackType.PushBasedNotification)
{
base.name = "BulkAddCommand";
_parent = parent;
_methodOverload = methodOverload;
_bulkAddCommand = new Alachisoft.NCache.Common.Protobuf.BulkAddCommand();
_bulkAddCommand.datasourceItemAddedCallbackId = onDsItemsAddedCallback;
_bulkAddCommand.providerName = providerName;
_bulkAddCommand.returnVersions = returnVersions;
_bulkAddCommand.requestId = base.RequestId;
base.BulkKeys = keys;
for (int i = 0; i < keys.Length; i++)
{
CacheItem item = items[i];
_addCommand = new Alachisoft.NCache.Common.Protobuf.AddCommand();
_addCommand.key = keys[i];
Alachisoft.NCache.Caching.UserBinaryObject ubObject =
Alachisoft.NCache.Caching.UserBinaryObject.CreateUserBinaryObject((byte[])item.Value);
_addCommand.data.AddRange(ubObject.DataList);
if (item.AbsoluteExpiration.Equals(Caching.Cache.DefaultAbsolute.ToUniversalTime()))
{
_addCommand.absExpiration = 1;
}
else if (item.AbsoluteExpiration.Equals(Caching.Cache.DefaultAbsoluteLonger.ToUniversalTime()))
{
_addCommand.absExpiration = 2;
}
else if (item.AbsoluteExpiration != Caching.Cache.NoAbsoluteExpiration)
{
_addCommand.absExpiration = item.AbsoluteExpiration.Ticks;
}
if (item.SlidingExpiration.Equals(Caching.Cache.DefaultSliding))
{
_addCommand.sldExpiration = 1;
}
else if (item.SlidingExpiration.Equals(Caching.Cache.DefaultSlidingLonger))
{
_addCommand.sldExpiration = 2;
}
else if (item.SlidingExpiration != Caching.Cache.NoSlidingExpiration)
{
_addCommand.sldExpiration = item.SlidingExpiration.Ticks;
}
_addCommand.flag = item.FlagMap.Data;
_addCommand.group = item.Group;
_addCommand.subGroup = item.SubGroup;
_addCommand.isResync = item.IsResyncExpiredItems;
_addCommand.priority = (int)item.Priority;
_addCommand.dependency = item.Dependency == null
? null
: Alachisoft.NCache.Common.Util.DependencyHelper.GetProtoBufDependency(item.Dependency);
_addCommand.clientID = clientId;
_addCommand.CallbackType = CallbackType(callbackType);
ObjectQueryInfo objectQueryInfo = new ObjectQueryInfo();
if (item.QueryInfo["query-info"] != null)
{
objectQueryInfo.queryInfo =
ProtobufHelper.GetQueryInfoObj(item.QueryInfo["query-info"] as Hashtable);
}
if (item.QueryInfo["tag-info"] != null)
{
objectQueryInfo.tagInfo = ProtobufHelper.GetTagInfoObj(item.QueryInfo["tag-info"] as Hashtable);
}
if (item.QueryInfo["named-tag-info"] != null)
{
objectQueryInfo.namedTagInfo =
ProtobufHelper.GetNamedTagInfoObj(item.QueryInfo["named-tag-info"] as Hashtable, true);
}
_addCommand.objectQueryInfo = objectQueryInfo;
EventDataFilter itemUpdateDataFilter = updateCallbackFilter;
EventDataFilter itemRemovedDataFilter = removeCallabackFilter;
if (item.CacheItemRemovedCallback != null)
{
itemRemovedDataFilter = item.ItemRemovedCallabackDataFilter;
short[] callabackIds = _parent.EventManager.RegisterSelectiveEvent(item.CacheItemRemovedCallback,
EventType.ItemRemoved, itemRemovedDataFilter);
removedCallbackId = callabackIds[1];
}
else if (item.ItemRemoveCallback != null)
{
removedCallbackId = _parent.GetCallbackId(item.ItemRemoveCallback);
itemRemovedDataFilter = EventDataFilter.DataWithMetadata;
}
if (item.CacheItemUpdatedCallback != null)
{
itemUpdateDataFilter = item.ItemUpdatedCallabackDataFilter;
short[] callabackIds = _parent.EventManager.RegisterSelectiveEvent(item.CacheItemUpdatedCallback,
EventType.ItemUpdated, itemUpdateDataFilter);
updateCallbackId = callabackIds[0];
}
else if (item.ItemUpdateCallback != null)
{
updateCallbackId = _parent.GetCallbackId(item.ItemUpdateCallback);
itemUpdateDataFilter = EventDataFilter.None;
}
_addCommand.removeCallbackId = removedCallbackId;
_addCommand.updateCallbackId = updateCallbackId;
_addCommand.updateDataFilter = (short)itemUpdateDataFilter;
_addCommand.removeDataFilter = (short)itemRemovedDataFilter;
_addCommand.resyncProviderName = item.ResyncProviderName;
if (item.SyncDependency != null)
{
_addCommand.syncDependency = new Alachisoft.NCache.Common.Protobuf.SyncDependency();
_addCommand.syncDependency.key = item.SyncDependency.Key;
_addCommand.syncDependency.cacheId = item.SyncDependency.CacheId;
_addCommand.syncDependency.server = item.SyncDependency.Server;
_addCommand.syncDependency.port = item.SyncDependency.Port;
}
_bulkAddCommand.addCommand.Add(_addCommand);
}
}
