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ScopedCacheClient.cs
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ScopedCacheClient.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Foundatio.Utility;
using Microsoft.Extensions.Logging;
namespace Foundatio.Caching;
public class ScopedHybridCacheClient : ScopedCacheClient, IHybridCacheClient
{
public ScopedHybridCacheClient(IHybridCacheClient client, string scope = null) : base(client, scope) { }
}
public class ScopedCacheClient : ICacheClient, IHaveLogger, IHaveTimeProvider
{
private string _keyPrefix;
private bool _isLocked;
private readonly object _lock = new();
public ScopedCacheClient(ICacheClient client, string scope = null)
{
UnscopedCache = client ?? new NullCacheClient();
_isLocked = scope != null;
Scope = !String.IsNullOrWhiteSpace(scope) ? scope.Trim() : null;
_keyPrefix = Scope != null ? String.Concat(Scope, ":") : String.Empty;
}
public ICacheClient UnscopedCache { get; private set; }
public string Scope { get; private set; }
ILogger IHaveLogger.Logger => UnscopedCache.GetLogger();
TimeProvider IHaveTimeProvider.TimeProvider => UnscopedCache.GetTimeProvider();
public void SetScope(string scope)
{
if (_isLocked)
throw new InvalidOperationException("Scope can't be changed after it has been set");
lock (_lock)
{
if (_isLocked)
throw new InvalidOperationException("Scope can't be changed after it has been set");
_isLocked = true;
Scope = !String.IsNullOrWhiteSpace(scope) ? scope.Trim() : null;
_keyPrefix = Scope != null ? String.Concat(Scope, ":") : String.Empty;
}
}
protected string GetUnscopedCacheKey(string key)
{
return String.Concat(_keyPrefix, key);
}
protected IEnumerable<string> GetUnscopedCacheKeys(IEnumerable<string> keys)
{
return keys?.Select(GetUnscopedCacheKey);
}
protected string GetScopedCacheKey(string unscopedKey)
{
return unscopedKey?.Substring(_keyPrefix.Length);
}
public Task<bool> RemoveAsync(string key)
{
return UnscopedCache.RemoveAsync(GetUnscopedCacheKey(key));
}
public Task<bool> RemoveIfEqualAsync<T>(string key, T expected)
{
return UnscopedCache.RemoveIfEqualAsync(GetUnscopedCacheKey(key), expected);
}
public Task<int> RemoveAllAsync(IEnumerable<string> keys = null)
{
if (keys == null)
return RemoveByPrefixAsync(String.Empty);
return UnscopedCache.RemoveAllAsync(GetUnscopedCacheKeys(keys));
}
public Task<int> RemoveByPrefixAsync(string prefix)
{
return UnscopedCache.RemoveByPrefixAsync(GetUnscopedCacheKey(prefix));
}
public Task<CacheValue<T>> GetAsync<T>(string key)
{
return UnscopedCache.GetAsync<T>(GetUnscopedCacheKey(key));
}
public async Task<IDictionary<string, CacheValue<T>>> GetAllAsync<T>(IEnumerable<string> keys)
{
var scopedDictionary = await UnscopedCache.GetAllAsync<T>(GetUnscopedCacheKeys(keys)).AnyContext();
return scopedDictionary.ToDictionary(kvp => GetScopedCacheKey(kvp.Key), kvp => kvp.Value);
}
public Task<bool> AddAsync<T>(string key, T value, TimeSpan? expiresIn = null)
{
return UnscopedCache.AddAsync(GetUnscopedCacheKey(key), value, expiresIn);
}
public Task<bool> SetAsync<T>(string key, T value, TimeSpan? expiresIn = null)
{
return UnscopedCache.SetAsync(GetUnscopedCacheKey(key), value, expiresIn);
}
public Task<int> SetAllAsync<T>(IDictionary<string, T> values, TimeSpan? expiresIn = null)
{
return UnscopedCache.SetAllAsync(values?.ToDictionary(kvp => GetUnscopedCacheKey(kvp.Key), kvp => kvp.Value), expiresIn);
}
public Task<bool> ReplaceAsync<T>(string key, T value, TimeSpan? expiresIn = null)
{
return UnscopedCache.ReplaceAsync(GetUnscopedCacheKey(key), value, expiresIn);
}
public Task<bool> ReplaceIfEqualAsync<T>(string key, T value, T expected, TimeSpan? expiresIn = null)
{
return UnscopedCache.ReplaceIfEqualAsync(GetUnscopedCacheKey(key), value, expected, expiresIn);
}
public Task<double> IncrementAsync(string key, double amount, TimeSpan? expiresIn = null)
{
return UnscopedCache.IncrementAsync(GetUnscopedCacheKey(key), amount, expiresIn);
}
public Task<long> IncrementAsync(string key, long amount, TimeSpan? expiresIn = null)
{
return UnscopedCache.IncrementAsync(GetUnscopedCacheKey(key), amount, expiresIn);
}
public Task<bool> ExistsAsync(string key)
{
return UnscopedCache.ExistsAsync(GetUnscopedCacheKey(key));
}
public Task<TimeSpan?> GetExpirationAsync(string key)
{
return UnscopedCache.GetExpirationAsync(GetUnscopedCacheKey(key));
}
public Task SetExpirationAsync(string key, TimeSpan expiresIn)
{
return UnscopedCache.SetExpirationAsync(GetUnscopedCacheKey(key), expiresIn);
}
public Task<double> SetIfHigherAsync(string key, double value, TimeSpan? expiresIn = null)
{
return UnscopedCache.SetIfHigherAsync(GetUnscopedCacheKey(key), value, expiresIn);
}
public Task<long> SetIfHigherAsync(string key, long value, TimeSpan? expiresIn = null)
{
return UnscopedCache.SetIfHigherAsync(GetUnscopedCacheKey(key), value, expiresIn);
}
public Task<double> SetIfLowerAsync(string key, double value, TimeSpan? expiresIn = null)
{
return UnscopedCache.SetIfLowerAsync(GetUnscopedCacheKey(key), value, expiresIn);
}
public Task<long> SetIfLowerAsync(string key, long value, TimeSpan? expiresIn = null)
{
return UnscopedCache.SetIfLowerAsync(GetUnscopedCacheKey(key), value, expiresIn);
}
public Task<long> ListAddAsync<T>(string key, IEnumerable<T> values, TimeSpan? expiresIn = null)
{
return UnscopedCache.ListAddAsync(GetUnscopedCacheKey(key), values, expiresIn);
}
public Task<long> ListRemoveAsync<T>(string key, IEnumerable<T> values, TimeSpan? expiresIn = null)
{
return UnscopedCache.ListRemoveAsync(GetUnscopedCacheKey(key), values, expiresIn);
}
public Task<CacheValue<ICollection<T>>> GetListAsync<T>(string key, int? page = null, int pageSize = 100)
{
return UnscopedCache.GetListAsync<T>(GetUnscopedCacheKey(key), page, pageSize);
}
public void Dispose() { }
}