public LeastFrequentlyUsedJournalEntry(JournalEntry entry, CacheAge age, int hitCount, int newerVersionCount)
{
Entry = entry;
Age = age;
HitCount = hitCount;
NewerVersionCount = newerVersionCount;
}
public void WhenAJournalEntryIsCommittedAndRetrieved_ThenItShouldBeEquivalentToTheOriginal()
{
var journalPath = Path.Combine(testDir, "PackageRetentionJournal.json");
var thePackage = CreatePackageIdentity("TestPackage", "0.0.1");
var cacheAge = new CacheAge(10);
var serverTaskId = new ServerTaskId("TaskID-1");
var journalEntry = new JournalEntry(thePackage, 1);
journalEntry.AddLock(serverTaskId, cacheAge);
journalEntry.AddUsage(serverTaskId, cacheAge);
var writeRepository = new JsonJournalRepository(TestCalamariPhysicalFileSystem.GetPhysicalFileSystem(), new StaticJsonJournalPathProvider(journalPath), Substitute.For <ILog>());
writeRepository.AddJournalEntry(journalEntry);
writeRepository.Commit();
var readRepository = new JsonJournalRepository(TestCalamariPhysicalFileSystem.GetPhysicalFileSystem(), new StaticJsonJournalPathProvider(journalPath), Substitute.For <ILog>());
readRepository.Load();
readRepository.TryGetJournalEntry(thePackage, out var retrieved).Should().BeTrue();
retrieved.Package.Should().BeEquivalentTo(journalEntry.Package);
retrieved.GetLockDetails().Should().BeEquivalentTo(journalEntry.GetLockDetails());
retrieved.GetUsageDetails().Should().BeEquivalentTo(journalEntry.GetUsageDetails());
}
IEnumerable <LeastFrequentlyUsedJournalEntry> OrderByValue(IList <JournalEntry> journalEntries, CacheAge currentCacheAge)
{
if (!journalEntries.Any())
{
return(new LeastFrequentlyUsedJournalEntry[0]);
}
var details = CreateLeastFrequentlyUsedJournalEntries(journalEntries).ToList();
var hitCountRange = GetHitCountRange(details);
var cacheAgeRange = GetCacheAgeRange(details, currentCacheAge);
var newVersionCountRange = GetVersionCountRange(details);
decimal CalculateValue(LeastFrequentlyUsedJournalEntry pi) =>
Normalise(pi.HitCount, hitCountRange) * hitFactor
- Normalise(currentCacheAge.Value - pi.Age.Value, cacheAgeRange) * ageFactor
- Normalise(pi.NewerVersionCount, newVersionCountRange) * newerVersionFactor;
return(details.OrderBy(CalculateValue));
}
public PackageCache(CacheAge cacheAge)
{
CacheAge = cacheAge;
}
public PackageCache(int cacheAge)
{
CacheAge = new CacheAge(cacheAge);
}
public void AddLock(ServerTaskId deploymentTaskId, CacheAge cacheAge)
{
locks.Add(new UsageDetails(deploymentTaskId, cacheAge));
}
public void AddUsage(ServerTaskId deploymentTaskId, CacheAge cacheAge)
{
usages.Add(new UsageDetails(deploymentTaskId, cacheAge));
}
public UsageDetails(ServerTaskId deploymentTaskId, CacheAge cacheAgeAtUsage, DateTime dateTime)
{
CacheAgeAtUsage = cacheAgeAtUsage;
DateTime = dateTime;
DeploymentTaskId = deploymentTaskId;
}
/// <summary> Defaults DateTime to DateTime.Now </summary>
public UsageDetails(ServerTaskId deploymentTaskId, CacheAge cacheAge)
: this(deploymentTaskId, cacheAge, DateTime.Now)
{
}
