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Use a BiMap in UuidCache

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Luck 2016-09-19 21:13:45 +01:00
parent b1e34b55f8
commit 50fd954599
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1 changed files with 7 additions and 14 deletions
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21
common/src/main/java/me/lucko/luckperms/core/UuidCache.java
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@ -22,12 +22,12 @@
package me.lucko.luckperms.core;
import com.google.common.collect.BiMap;
import com.google.common.collect.HashBiMap;
import com.google.common.collect.Maps;
import lombok.Getter;
import java.util.Map;
import java.util.Optional;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
/**
* @see me.lucko.luckperms.api.UuidCache for docs
@ -35,7 +35,7 @@ import java.util.concurrent.ConcurrentHashMap;
public class UuidCache {
// External UUID --> Internal UUID
private Map<UUID, UUID> cache;
private BiMap<UUID, UUID> cache;
@Getter
private final boolean onlineMode;
@ -44,23 +44,16 @@ public class UuidCache {
this.onlineMode = onlineMode;
if (!onlineMode) {
cache = new ConcurrentHashMap<>();
cache = Maps.synchronizedBiMap(HashBiMap.create());
}
}
public UUID getUUID(UUID external) {
return onlineMode ? external : (cache.containsKey(external) ? cache.get(external) : external);
return onlineMode ? external : cache.getOrDefault(external, external);
}
public UUID getExternalUUID(UUID internal) {
if (onlineMode) return internal;
Optional<UUID> external = cache.entrySet().stream()
.filter(e -> e.getValue().equals(internal))
.map(Map.Entry::getKey)
.findFirst();
return external.isPresent() ? external.get() : internal;
return onlineMode ? internal : cache.inverse().getOrDefault(internal, internal);
}
public void addToCache(UUID external, UUID internal) {