public void ExecuteEvictionLogsEvictionResultIfDebugIsEnabled()
{
// given
var configuration = new BeaconCacheConfiguration(1000L, 1000L, 2000L);
var target = new SpaceEvictionStrategy(mockLogger, mockBeaconCache, configuration, isShutdownFunc);
mockBeaconCache.NumBytesInCache.Returns(configuration.CacheSizeUpperBound + 1,
configuration.CacheSizeUpperBound + 1,
configuration.CacheSizeUpperBound + 1,
configuration.CacheSizeUpperBound + 1,
0L);
mockBeaconCache.BeaconIDs.Returns(new HashSet <int> {
42, 1
});
mockBeaconCache.EvictRecordsByNumber(1, Arg.Any <int>()).Returns(5);
mockBeaconCache.EvictRecordsByNumber(42, Arg.Any <int>()).Returns(1);
mockLogger.IsDebugEnabled.Returns(true);
// when executing the first time
target.Execute();
// then
var tmp = mockLogger.Received(3).IsDebugEnabled;
mockLogger.Received(1).Debug("Removed 5 records from Beacon with ID 1");
mockLogger.Received(1).Debug("Removed 1 records from Beacon with ID 42");
}
public void ExecuteEvictionLogsEvictionResultIfDebugIsEnabled()
{
// given
var configuration = MockBeaconCacheConfig(1000L, 1000L, 2000L);
var target = CreateSpaceEvictionStrategyWith(configuration);
mockBeaconCache.NumBytesInCache.Returns(configuration.CacheSizeUpperBound + 1,
configuration.CacheSizeUpperBound + 1,
configuration.CacheSizeUpperBound + 1,
configuration.CacheSizeUpperBound + 1,
0L);
var keyOne = new BeaconKey(42, 0);
var keyTwo = new BeaconKey(1, 0);
mockBeaconCache.BeaconKeys.Returns(new HashSet <BeaconKey> {
keyOne, keyTwo
});
mockBeaconCache.EvictRecordsByNumber(keyTwo, Arg.Any <int>()).Returns(5);
mockBeaconCache.EvictRecordsByNumber(keyOne, Arg.Any <int>()).Returns(1);
mockLogger.IsDebugEnabled.Returns(true);
// when executing the first time
target.Execute();
// then
_ = mockLogger.Received(3).IsDebugEnabled;
mockLogger.Received(1).Debug($"{target.GetType().Name} - Removed 1 records from Beacon with key {keyOne}");
mockLogger.Received(1).Debug($"{target.GetType().Name} - Removed 5 records from Beacon with key {keyTwo}");
}
/// <summary>
/// Performs execution of strategy.
/// </summary>
private void DoExecute()
{
var removedRecordsPerBeacon = new Dictionary <BeaconKey, int>();
while (!isShutdownFunc() && beaconCache.NumBytesInCache > configuration.CacheSizeLowerBound)
{
var beaconKeys = beaconCache.BeaconKeys;
using (IEnumerator <BeaconKey> iterator = beaconKeys.GetEnumerator())
{
while (!isShutdownFunc() && iterator.MoveNext() &&
beaconCache.NumBytesInCache > configuration.CacheSizeLowerBound)
{
var beaconKey = iterator.Current;
// remove 1 record from Beacon cache for given beaconKey
// the result is the number of records removed, which might be in range [0, numRecords=1]
var numRecordsRemoved = beaconCache.EvictRecordsByNumber(beaconKey, 1);
if (!logger.IsDebugEnabled)
{
continue;
}
if (!removedRecordsPerBeacon.ContainsKey(beaconKey))
{
removedRecordsPerBeacon.Add(beaconKey, numRecordsRemoved);
}
else
{
removedRecordsPerBeacon[beaconKey] += numRecordsRemoved;
}
}
}
}
if (logger.IsDebugEnabled)
{
foreach (var entry in removedRecordsPerBeacon)
{
logger.Debug($"{GetType().Name} - Removed {entry.Value.ToInvariantString()} records from Beacon with key {entry.Key}");
}
}
}
/// <summary>
/// Performs execution of strategy.
/// </summary>
private void DoExecute()
{
var removedRecordsPerBeacon = new Dictionary <int, int>();
while (!isShutdownFunc() && beaconCache.NumBytesInCache > configuration.CacheSizeLowerBound)
{
var beaconIDs = beaconCache.BeaconIDs;
IEnumerator <int> iterator = beaconIDs.GetEnumerator();
while (!isShutdownFunc() && iterator.MoveNext() && beaconCache.NumBytesInCache > configuration.CacheSizeLowerBound)
{
var beaconID = iterator.Current;
// remove 1 record from Beacon cache for given beaconID
// the result is the number of records removed, which might be in range [0, numRecords=1]
int numRecordsRemoved = beaconCache.EvictRecordsByNumber(beaconID, 1);
if (logger.IsDebugEnabled)
{
if (!removedRecordsPerBeacon.ContainsKey(beaconID))
{
removedRecordsPerBeacon.Add(beaconID, numRecordsRemoved);
}
else
{
removedRecordsPerBeacon[beaconID] += numRecordsRemoved;
}
}
}
}
if (logger.IsDebugEnabled)
{
foreach (var entry in removedRecordsPerBeacon)
{
logger.Debug("Removed " + entry.Value + " records from Beacon with ID " + entry.Key);
}
}
}