59 lines
1.8 KiB
Java
59 lines
1.8 KiB
Java
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package com.google.firebase.components;
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import com.google.firebase.inject.Provider;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.Iterator;
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import java.util.Set;
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import java.util.concurrent.ConcurrentHashMap;
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/* JADX INFO: Access modifiers changed from: package-private */
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/* loaded from: classes.dex */
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public class LazySet<T> implements Provider<Set<T>> {
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private volatile Set<T> actualSet = null;
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private volatile Set<Provider<T>> providers = Collections.newSetFromMap(new ConcurrentHashMap());
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LazySet(Collection<Provider<T>> collection) {
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this.providers.addAll(collection);
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public static LazySet<?> fromCollection(Collection<Provider<?>> collection) {
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return new LazySet<>((Set) collection);
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}
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@Override // com.google.firebase.inject.Provider
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public Set<T> get() {
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if (this.actualSet == null) {
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synchronized (this) {
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if (this.actualSet == null) {
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this.actualSet = Collections.newSetFromMap(new ConcurrentHashMap());
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updateSet();
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}
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}
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}
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return Collections.unmodifiableSet(this.actualSet);
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public void add(Provider<T> provider) {
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synchronized (this) {
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if (this.actualSet == null) {
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this.providers.add(provider);
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} else {
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this.actualSet.add(provider.get());
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}
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}
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}
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private void updateSet() {
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synchronized (this) {
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Iterator<Provider<T>> it = this.providers.iterator();
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while (it.hasNext()) {
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this.actualSet.add(it.next().get());
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}
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this.providers = null;
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}
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}
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}
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