private CachedOrds GetCachedOrds(AtomicReaderContext context)
{
object cacheKey = context.Reader.CoreCacheKey;
#if FEATURE_CONDITIONALWEAKTABLE_ENUMERATOR
return(ordsCache.GetValue(cacheKey, (cacheKey) => new CachedOrds(source.GetReader(context), context.Reader.MaxDoc)));
#else
CachedOrds ords;
syncLock.EnterReadLock();
try
{
if (ordsCache.TryGetValue(cacheKey, out ords))
{
return(ords);
}
}
finally
{
syncLock.ExitReadLock();
}
ords = new CachedOrds(source.GetReader(context), context.Reader.MaxDoc);
syncLock.EnterWriteLock();
try
{
ordsCache[cacheKey] = ords;
}
finally
{
syncLock.ExitWriteLock();
}
return(ords);
#endif
}
private CachedOrds GetCachedOrds(AtomicReaderContext context)
{
// LUCENENET NOTE: Since ConditionalWeakTable doesn't synchronize on enumeration in the RamBytesUsed() method,
// the lock is still required here despite it being a threadsafe collection.
UninterruptableMonitor.Enter(syncLock);
try
{
object cacheKey = context.Reader.CoreCacheKey;
if (!ordsCache.TryGetValue(cacheKey, out CachedOrds ords))
{
ords = new CachedOrds(source.GetReader(context), context.Reader.MaxDoc);
// LUCENENET specific: Since this is the only thread that can modify ordsCache
// and we just checked that the value doesn't exist above, we can simplify this to Add()
// which also means we don't need conditional compilation because ConditionalWeakTable
// doesn't support this[index].
ordsCache.Add(cacheKey, ords);
}
return(ords);
}
finally
{
UninterruptableMonitor.Exit(syncLock);
}
}
private CachedOrds GetCachedOrds(AtomicReaderContext context)
{
// LUCENENET NOTE: Since ConditionalWeakTable doesn't synchronize on enumeration in the RamBytesUsed() method,
// the lock is still required here despite it being a threadsafe collection.
UninterruptableMonitor.Enter(syncLock);
try
{
object cacheKey = context.Reader.CoreCacheKey;
if (!ordsCache.TryGetValue(cacheKey, out CachedOrds ords))
{
ords = new CachedOrds(source.GetReader(context), context.Reader.MaxDoc);
// LUCENENET specific: Since this is the only thread that can modify ordsCache
// and we just checked that the value doesn't exist above, we can simplify this to Add()
// which also means we don't need conditional compilation because ConditionalWeakTable
// doesn't support this[index].
ordsCache.Add(cacheKey, ords);
#if !FEATURE_CONDITIONALWEAKTABLE_ENUMERATOR
// LUCENENET specific: Add weak event handler for .NET Standard 2.0 and .NET Framework, since we don't have an enumerator to use
context.Reader.SubscribeToGetCacheKeysEvent(eventAggregator.GetEvent <Events.GetCacheKeysEvent>());
#endif
}
return(ords);
}
finally
{
UninterruptableMonitor.Exit(syncLock);
}
}
private CachedOrds GetCachedOrds(AtomicReaderContext context)
{
lock (this)
{
object cacheKey = context.Reader.CoreCacheKey;
if (!ordsCache.TryGetValue(cacheKey, out CachedOrds ords) || ords == null)
{
ords = new CachedOrds(source.GetReader(context), context.Reader.MaxDoc);
ordsCache[cacheKey] = ords;
}
return(ords);
}
}
private CachedOrds GetCachedOrds(AtomicReaderContext context)
{
lock (this)
{
object cacheKey = context.Reader.CoreCacheKey;
CachedOrds ords = ordsCache[cacheKey];
if (ords == null)
{
ords = new CachedOrds(source.GetReader(context), context.Reader.MaxDoc);
ordsCache[cacheKey] = ords;
}
return ords;
}
}
private CachedOrds GetCachedOrds(AtomicReaderContext context)
{
object cacheKey = context.Reader.CoreCacheKey;
#if FEATURE_CONDITIONALWEAKTABLE_ENUMERATOR
return(ordsCache.GetValue(cacheKey, (cacheKey) => new CachedOrds(source.GetReader(context), context.Reader.MaxDoc)));
#else
lock (this)
{
if (!ordsCache.TryGetValue(cacheKey, out CachedOrds ords) || ords == null)
{
ords = new CachedOrds(source.GetReader(context), context.Reader.MaxDoc);
ordsCache[cacheKey] = ords;
}
return(ords);
}
#endif
}
public override OrdinalsSegmentReader GetReader(AtomicReaderContext context)
{
CachedOrds cachedOrds = GetCachedOrds(context);
return(new OrdinalsSegmentReaderAnonymousInnerClassHelper(this, cachedOrds));
}
public OrdinalsSegmentReaderAnonymousClass(CachedOrds cachedOrds)
{
this.cachedOrds = cachedOrds;
}
public OrdinalsSegmentReaderAnonymousInnerClassHelper(CachedOrds cachedOrds)
{
this.cachedOrds = cachedOrds;
}
