private static BuildXL.Cache.MemoizationStore.Interfaces.Caches.ICache CreateDistributedCache(ILogger logger, Config cacheConfig)
{
int cacheKeyBumpTimeMins = cacheConfig.CacheKeyBumpTimeMins;
if (cacheKeyBumpTimeMins <= 0)
{
logger.Debug("Config specified bump time in minutes is invalid {0}. Using default bump time {1}", cacheKeyBumpTimeMins, Config.DefaultCacheKeyBumpTimeMins);
cacheKeyBumpTimeMins = Config.DefaultCacheKeyBumpTimeMins;
}
TimeSpan keyBump = TimeSpan.FromMinutes(cacheKeyBumpTimeMins);
var metadataTracer = new DistributedCacheSessionTracer(logger, nameof(DistributedCache));
string metadataKeyspace = cacheConfig.CacheNamespace;
if (string.IsNullOrWhiteSpace(metadataKeyspace))
{
metadataKeyspace = DefaultMetadataKeyspace;
}
IMetadataCache metadataCache = RedisMetadataCacheFactory.Create(metadataTracer, keySpace: metadataKeyspace, cacheKeyBumpTime: keyBump);
var innerCache = cacheConfig.DisableContent
? new OneLevelCache(
contentStoreFunc: () => new ReadOnlyEmptyContentStore(),
memoizationStoreFunc: () => (BuildCacheCache)BuildCacheUtils.CreateBuildCacheCache(cacheConfig, logger, Environment.GetEnvironmentVariable("VSTSPERSONALACCESSTOKEN")),
id: Guid.NewGuid(),
passContentToMemoization: false)
: BuildCacheUtils.CreateBuildCacheCache(cacheConfig, logger, Environment.GetEnvironmentVariable("VSTSPERSONALACCESSTOKEN"));
ReadThroughMode readThroughMode = cacheConfig.SealUnbackedContentHashLists ? ReadThroughMode.ReadThrough : ReadThroughMode.None;
return(new DistributedCache(logger, innerCache, metadataCache, metadataTracer, readThroughMode));
}
internal static ICache CreateCache(
ILogger logger, ICache innerCache, string redisNamespace, string testClassName, ReadThroughMode readThroughMode)
{
var redisDb = RedisDatabases.GetOrAdd(redisNamespace, _ => new MockRedisDatabase(SystemClock.Instance));
RedisConnectionMultiplexer.TestConnectionMultiplexer = MockRedisDatabaseFactory.CreateConnection(redisDb);
var tracer = new DistributedCacheSessionTracer(TestGlobal.Logger, testClassName);
var metadataCache = new RedisMetadataCache(
new EnvironmentConnectionStringProvider(string.Empty), new RedisSerializer(), redisNamespace, tracer);
return(new DistributedCache(logger, innerCache, metadataCache, tracer, readThroughMode));
}
/// <summary>
/// Initializes a new instance of the <see cref="DistributedCache" /> class.
/// </summary>
public DistributedCache(ILogger logger, ICache innerICache, IMetadataCache metadataCache, DistributedCacheSessionTracer cacheTracer, ReadThroughMode readThroughMode)
{
Contract.Requires(logger != null);
Contract.Requires(innerICache != null);
Contract.Requires(metadataCache != null);
_logger = logger;
_innerICache = innerICache;
_metadataCache = metadataCache;
_tracer = cacheTracer;
_readThroughMode = readThroughMode;
}
private async Task RunTest(MockRedisDatabase redisDb, Func <Context, IMetadataCache, MockRedisDatabase, Task> test)
{
var context = new Context(TestGlobal.Logger);
RedisConnectionMultiplexer.TestConnectionMultiplexer = MockRedisDatabaseFactory.CreateConnection(redisDb);
var tracer = new DistributedCacheSessionTracer(TestGlobal.Logger, nameof(MemoryMetadataCacheTests));
var metadataCache = new RedisMetadataCache(new EnvironmentConnectionStringProvider(string.Empty), new RedisSerializer(), RedisNameSpace, tracer);
await metadataCache.StartupAsync(context).ShouldBeSuccess();
await test(context, metadataCache, redisDb);
await metadataCache.ShutdownAsync(context).ShouldBeSuccess();
}
