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Apply improvements to the caches in AbstractContextManager (#929)

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Luck 2018-04-25 21:14:16 +01:00
parent 97121bc719
commit 4cdff14c7c
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1 changed files with 7 additions and 11 deletions
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18
common/src/main/java/me/lucko/luckperms/common/contexts/AbstractContextManager.java
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@ -28,6 +28,8 @@ package me.lucko.luckperms.common.contexts;
import com.github.benmanes.caffeine.cache.CacheLoader;
import com.github.benmanes.caffeine.cache.Caffeine;
import com.github.benmanes.caffeine.cache.LoadingCache;
import com.google.common.base.Supplier;
import com.google.common.base.Suppliers;
import com.google.common.collect.ImmutableList;
import me.lucko.luckperms.api.Contexts;
@ -64,18 +66,12 @@ public abstract class AbstractContextManager<T> implements ContextManager<T> {
// caches context lookups
private final LoadingCache<T, Contexts> lookupCache = Caffeine.newBuilder()
.weakKeys()
.expireAfterWrite(50L, TimeUnit.MILLISECONDS) // expire roughly every tick
.build(new Loader());
// caches static context lookups
private final LoadingCache<Object, Contexts> staticLookupCache = Caffeine.newBuilder()
.initialCapacity(1)
.expireAfterWrite(50L, TimeUnit.MILLISECONDS) // expire roughly every tick
.build(new StaticLoader());
// the single key used in the static lookup cache
private final Object staticCacheKey = new Object();
@SuppressWarnings("Guava")
private final Supplier<Contexts> staticLookupCache = Suppliers.memoizeWithExpiration(new StaticLoader(), 50L, TimeUnit.MILLISECONDS);
protected AbstractContextManager(LuckPermsPlugin plugin, Class<T> subjectClass) {
this.plugin = plugin;
@ -125,7 +121,7 @@ public abstract class AbstractContextManager<T> implements ContextManager<T> {
@Override
public Contexts getStaticContexts() {
return this.staticLookupCache.get(this.staticCacheKey);
return this.staticLookupCache.get();
}
@Override
@ -211,9 +207,9 @@ public abstract class AbstractContextManager<T> implements ContextManager<T> {
}
}
private final class StaticLoader implements CacheLoader<Object, Contexts> {
private final class StaticLoader implements Supplier<Contexts> {
@Override
public Contexts load(@Nonnull Object o) {
public Contexts get() {
MutableContextSet accumulator = MutableContextSet.create();
for (StaticContextCalculator calculator : AbstractContextManager.this.staticCalculators) {