bool IReadOnlyDictionary <TDestinationKey, TDestination> .ContainsKey(TDestinationKey key) => InnerDictionary.ContainsKey((TSourceKey)key);
/// <summary>
/// Checks if the collection contains a value
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public bool Contains(TValue value)
{
return(InnerDictionary.ContainsKey(KeySelector.Invoke(value)));
}
/// <summary>
/// Tries to add a value to the collection
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public bool TryAdd(TValue value)
{
return(InnerDictionary.TryAdd(KeySelector.Invoke(value), value));
}
/// <inheritdoc />
public override bool Equals(object obj)
{
using (writeLock.LockRead())
return(InnerDictionary.Equals(obj));
}
public AvatarInventoryItemEquippedModifier(Guid itemId, bool equipped)
{
dictionary = new InnerDictionary();
dictionary.Value.Add(new JsonConvertibleGuid(itemId), equipped);
}
/// <inheritdoc />
public bool Remove(KeyValuePair <TKey, TValue> item)
{
using (writeLock.LockWrite())
return(InnerDictionary.Remove(item));
}
/// <inheritdoc />
public bool TryGetValue(TKey key, out TValue value)
{
using (writeLock.LockRead())
return(InnerDictionary.TryGetValue(key, out value));
}
public bool ContainsKey(string key)
{
return(InnerDictionary.ContainsKey(key));
}
public bool TryGetValue(string key, out MethodParameterValue value)
{
return(InnerDictionary.TryGetValue(key, out value));
}
/// <summary>
/// 删除Cache项
/// </summary>
/// <param name="key">Cache项键值</param>
/// <param name="item">Cache项</param>
private void InnerRemove(TKey key, CacheItem <TKey, TValue> item)
{
InnerDictionary.Remove(key);
item.Dispose();
}
protected override IEnumerator <KeyValuePair <keyˈ, valueˈ> > GetEnumerator() => InnerDictionary.Where(kvp => kvp.Case(Filter)).GetEnumerator();
/// <summary>
/// 通过Cache项的key获取Cache项Value的索引器
/// </summary>
/// <param name="key">cache项key</param>
/// <returns>cache项Value</returns>
/// <remarks>
/// <code source="..\Framework\TestProjects\DeluxeWorks.Library.Test\Caching\CacheQueueTest.cs" region="GetCacheItemTest" lang="cs" title="通过Cache项的key获取Cache项Value" />
/// </remarks>
public TValue this[TKey key]
{
get
{
CacheItem <TKey, TValue> item = null;
this.TotalCounters.HitRatioBaseCounter.Increment();
this.Counters.HitRatioBaseCounter.Increment();
try
{
this.rWLock.AcquireReaderLock(this.lockTimeout);
try
{
item = InnerDictionary[key];
}
finally
{
this.rWLock.ReleaseReaderLock();
}
this.rWLock.AcquireWriterLock(this.lockTimeout);
try
{
//如果Cache项过期则抛出异常
if (this.CheckDependencyChanged(key, item))
{
throw new DependencyChangedException(string.Format(Resource.DependencyChanged, key, item.Dependency));
}
//重置cache项的最后访问时间
if (item.Dependency != null)
{
item.Dependency.UtcLastAccessTime = DateTime.UtcNow;
}
}
finally
{
this.rWLock.ReleaseWriterLock();
}
this.TotalCounters.HitsCounter.Increment();
this.TotalCounters.HitRatioCounter.Increment();
this.Counters.HitsCounter.Increment();
this.Counters.HitRatioCounter.Increment();
return(InnerDictionary[key].Value);
}
catch (System.Exception)
{
this.TotalCounters.MissesCounter.Increment();
this.Counters.MissesCounter.Increment();
throw;
}
}
set
{
this.rWLock.AcquireWriterLock(this.lockTimeout);
try
{
CacheItem <TKey, TValue> item;
if (InnerDictionary.TryGetValue(key, out item) == false)
{
this.Add(key, value);
item = InnerDictionary[key];
}
else
{
item.Value = value;
}
item.UpdateDependencyLastModifyTime();
}
finally
{
this.rWLock.ReleaseWriterLock();
}
}
}
/// <summary>
/// 通过key，获取Cache项的value，如果相应的cache项存在的话
/// 则将cache项的value作为输出参数，返回给客户端代码
/// </summary>
/// <param name="key">cache项的key</param>
/// <param name="data">cache项的value</param>
/// <returns>如果CacheQueue中包含此Cache项，则返回true，否则返回false</returns>
/// <remarks>
/// <code source="..\Framework\TestProjects\DeluxeWorks.Library.Test\Caching\CacheQueueTest.cs" region="GetCacheItemTest" lang="cs" title="通过key，获取Cache项的value" />
/// </remarks>
public bool TryGetValue(TKey key, out TValue data)
{
data = default(TValue);
CacheItem <TKey, TValue> item;
bool result;
this.TotalCounters.HitRatioBaseCounter.Increment();
this.Counters.HitRatioBaseCounter.Increment();
this.rWLock.AcquireReaderLock(this.lockTimeout);
try
{
//读操作时，也会修改字典（调整次序），因此需要锁住字典，进行并发控制
lock (InnerDictionary.SyncRoot)
{
result = InnerDictionary.TryGetValue(key, out item);
}
}
finally
{
this.rWLock.ReleaseReaderLock();
}
if (result)
{
this.rWLock.AcquireWriterLock(this.lockTimeout);
try
{
//判断cache项是否过期
if (this.GetDependencyChanged(key, item))
{
result = false;
}
else
{
data = item.Value;
//修改Cache项的最后访问时间
if (item.Dependency != null)
{
item.Dependency.UtcLastAccessTime = DateTime.UtcNow;
}
}
}
finally
{
this.rWLock.ReleaseWriterLock();
}
}
if (result)
{
this.TotalCounters.HitsCounter.Increment();
this.TotalCounters.HitRatioCounter.Increment();
this.Counters.HitsCounter.Increment();
this.Counters.HitRatioCounter.Increment();
}
else
{
this.TotalCounters.MissesCounter.Increment();
this.Counters.MissesCounter.Increment();
}
return(result);
}
IEnumerator <KeyValuePair <TDestinationKey, TDestination> > IEnumerable <KeyValuePair <TDestinationKey, TDestination> > .GetEnumerator() => InnerDictionary.Select(item => new KeyValuePair <TDestinationKey, TDestination>(item.Key, item.Value)).GetEnumerator();
/// <inheritdoc />
public void CopyTo(KeyValuePair <TKey, TValue>[] array, int arrayIndex)
{
using (writeLock.LockRead())
InnerDictionary.CopyTo(array, arrayIndex);
}
void ICollection <KeyValuePair <string, MethodParameterValue> > .Clear()
{
InnerDictionary.Clear();
}
/// <inheritdoc />
public IEnumerator <KeyValuePair <TKey, TValue> > GetEnumerator()
{
using (writeLock.LockRead())
return(InnerDictionary.GetEnumerator());
}
public IEnumerator <KeyValuePair <string, MethodParameterValue> > GetEnumerator()
{
return(InnerDictionary.GetEnumerator());
}
/// <inheritdoc />
public bool Remove(TKey key)
{
using (writeLock.LockWrite())
return(InnerDictionary.Remove(key));
}
/// <inheritdoc />
public void Add(KeyValuePair <TKey, TValue> item)
{
using (writeLock.LockWrite())
InnerDictionary.Add(item);
}
/// <inheritdoc />
IEnumerator IEnumerable.GetEnumerator()
{
using (writeLock.LockRead())
return(InnerDictionary.GetEnumerator());
}
/// <inheritdoc />
public void Add(TKey key, TValue value)
{
using (writeLock.LockWrite())
InnerDictionary.Add(key, value);
}
/// <inheritdoc />
public override string ToString()
{
using (writeLock.LockRead())
return(InnerDictionary.ToString());
}
/// <inheritdoc />
public void Clear()
{
using (writeLock.LockWrite())
InnerDictionary.Clear();
}
/// <summary>
/// Tries to remove a value from the collection
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public bool Remove(TValue value)
{
return(InnerDictionary.TryRemove(KeySelector.Invoke(value), out var _));
}
/// <inheritdoc />
public bool Contains(KeyValuePair <TKey, TValue> item)
{
using (writeLock.LockRead())
return(InnerDictionary.Contains(item));
}
/// <summary>
/// Removes all values from the collection
/// </summary>
public void Clear()
{
InnerDictionary.Clear();
}
/// <inheritdoc />
public bool ContainsKey(TKey key)
{
using (writeLock.LockRead())
return(InnerDictionary.ContainsKey(key));
}
/// <summary>
/// Get the existing item or adds a new one matched by their keys
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public TValue GetOrAdd(TValue value)
{
return(InnerDictionary.GetOrAdd(KeySelector.Invoke(value), value));
}
/// <inheritdoc />
public void Clear()
{
EnsureWritable();
InnerDictionary.Clear();
}