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Refactor weight lookups

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Luck 2017-08-18 11:14:03 +02:00
parent 07c38de44b
commit c02fcb6508
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1 changed files with 38 additions and 8 deletions
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46
common/src/main/java/me/lucko/luckperms/common/model/PermissionHolder.java
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@ -183,6 +183,17 @@ public abstract class PermissionHolder {
}
private final TransientNodesCache transientNodesCopy = new TransientNodesCache();
/**
* Caches the holders weight lookup
*/
private final class WeightCache extends Cache<OptionalInt> {
@Override
protected OptionalInt supply() {
return calculateWeight();
}
}
private final WeightCache weightCache = new WeightCache();
// used to ensure thread safe access to the backing transientNodes map
private final ReentrantLock transientNodesLock = new ReentrantLock();
@ -201,6 +212,7 @@ public abstract class PermissionHolder {
private void invalidateCache() {
nodesCopy.invalidate();
transientNodesCopy.invalidate();
weightCache.invalidate();
// Invalidate listeners
for (Runnable r : stateListeners) {
@ -1482,16 +1494,34 @@ public abstract class PermissionHolder {
}
public OptionalInt getWeight() {
return weightCache.get();
}
private OptionalInt calculateWeight() {
if (this instanceof User) return OptionalInt.empty();
OptionalInt weight = OptionalInt.empty();
try {
weight = getOwnNodes().stream()
.filter(n -> n.getPermission().startsWith("weight."))
.map(n -> n.getPermission().substring("weight.".length()))
.mapToInt(Integer::parseInt)
.max();
} catch (Exception ignored) {}
boolean seen = false;
int best = 0;
for (Node n : getOwnNodes()) {
if (!n.getPermission().startsWith("weight.")) {
continue;
}
String substring = n.getPermission().substring("weight.".length());
int i;
try {
i = Integer.parseInt(substring);
} catch (NumberFormatException e) {
continue;
}
if (!seen || i > best) {
seen = true;
best = i;
}
}
OptionalInt weight = seen ? OptionalInt.of(best) : OptionalInt.empty();
if (!weight.isPresent()) {
Integer w = plugin.getConfiguration().get(ConfigKeys.GROUP_WEIGHTS).get(getObjectName().toLowerCase());