306 lines
10 KiB
Java
306 lines
10 KiB
Java
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package com.google.common.base;
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import com.airbnb.deeplinkdispatch.UrlTreeKt;
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import java.io.Serializable;
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import java.util.concurrent.TimeUnit;
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/* loaded from: classes2.dex */
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public final class Suppliers {
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/* loaded from: classes2.dex */
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interface SupplierFunction<T> extends Function<Supplier<T>, T> {
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}
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private Suppliers() {
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}
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public static <F, T> Supplier<T> compose(Function<? super F, T> function, Supplier<F> supplier) {
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return new SupplierComposition(function, supplier);
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}
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/* loaded from: classes2.dex */
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static class SupplierComposition<F, T> implements Supplier<T>, Serializable {
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private static final long serialVersionUID = 0;
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final Function<? super F, T> function;
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final Supplier<F> supplier;
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SupplierComposition(Function<? super F, T> function, Supplier<F> supplier) {
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this.function = (Function) Preconditions.checkNotNull(function);
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this.supplier = (Supplier) Preconditions.checkNotNull(supplier);
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}
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@Override // com.google.common.base.Supplier
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public T get() {
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return this.function.apply(this.supplier.get());
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}
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public boolean equals(Object obj) {
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if (!(obj instanceof SupplierComposition)) {
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return false;
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}
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SupplierComposition supplierComposition = (SupplierComposition) obj;
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return this.function.equals(supplierComposition.function) && this.supplier.equals(supplierComposition.supplier);
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}
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public int hashCode() {
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return Objects.hashCode(this.function, this.supplier);
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}
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public String toString() {
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String valueOf = String.valueOf(this.function);
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String valueOf2 = String.valueOf(this.supplier);
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StringBuilder sb = new StringBuilder(String.valueOf(valueOf).length() + 21 + String.valueOf(valueOf2).length());
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sb.append("Suppliers.compose(");
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sb.append(valueOf);
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sb.append(", ");
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sb.append(valueOf2);
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sb.append(")");
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return sb.toString();
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}
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}
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public static <T> Supplier<T> memoize(Supplier<T> supplier) {
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if ((supplier instanceof NonSerializableMemoizingSupplier) || (supplier instanceof MemoizingSupplier)) {
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return supplier;
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}
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if (supplier instanceof Serializable) {
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return new MemoizingSupplier(supplier);
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}
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return new NonSerializableMemoizingSupplier(supplier);
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}
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/* loaded from: classes2.dex */
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static class MemoizingSupplier<T> implements Supplier<T>, Serializable {
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private static final long serialVersionUID = 0;
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final Supplier<T> delegate;
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volatile transient boolean initialized;
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transient T value;
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MemoizingSupplier(Supplier<T> supplier) {
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this.delegate = (Supplier) Preconditions.checkNotNull(supplier);
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}
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@Override // com.google.common.base.Supplier
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public T get() {
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if (!this.initialized) {
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synchronized (this) {
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if (!this.initialized) {
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T t = this.delegate.get();
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this.value = t;
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this.initialized = true;
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return t;
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}
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}
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}
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return this.value;
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}
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public String toString() {
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Object obj;
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if (this.initialized) {
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String valueOf = String.valueOf(this.value);
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StringBuilder sb = new StringBuilder(String.valueOf(valueOf).length() + 25);
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sb.append("<supplier that returned ");
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sb.append(valueOf);
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sb.append(UrlTreeKt.configurablePathSegmentSuffix);
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obj = sb.toString();
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} else {
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obj = this.delegate;
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}
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String valueOf2 = String.valueOf(obj);
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StringBuilder sb2 = new StringBuilder(String.valueOf(valueOf2).length() + 19);
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sb2.append("Suppliers.memoize(");
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sb2.append(valueOf2);
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sb2.append(")");
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return sb2.toString();
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}
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}
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/* loaded from: classes2.dex */
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static class NonSerializableMemoizingSupplier<T> implements Supplier<T> {
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volatile Supplier<T> delegate;
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volatile boolean initialized;
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T value;
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NonSerializableMemoizingSupplier(Supplier<T> supplier) {
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this.delegate = (Supplier) Preconditions.checkNotNull(supplier);
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}
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@Override // com.google.common.base.Supplier
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public T get() {
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if (!this.initialized) {
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synchronized (this) {
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if (!this.initialized) {
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T t = this.delegate.get();
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this.value = t;
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this.initialized = true;
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this.delegate = null;
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return t;
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}
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}
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}
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return this.value;
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}
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public String toString() {
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Object obj = this.delegate;
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if (obj == null) {
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String valueOf = String.valueOf(this.value);
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StringBuilder sb = new StringBuilder(String.valueOf(valueOf).length() + 25);
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sb.append("<supplier that returned ");
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sb.append(valueOf);
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sb.append(UrlTreeKt.configurablePathSegmentSuffix);
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obj = sb.toString();
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}
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String valueOf2 = String.valueOf(obj);
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StringBuilder sb2 = new StringBuilder(String.valueOf(valueOf2).length() + 19);
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sb2.append("Suppliers.memoize(");
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sb2.append(valueOf2);
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sb2.append(")");
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return sb2.toString();
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}
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}
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public static <T> Supplier<T> memoizeWithExpiration(Supplier<T> supplier, long j, TimeUnit timeUnit) {
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return new ExpiringMemoizingSupplier(supplier, j, timeUnit);
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}
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/* loaded from: classes2.dex */
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static class ExpiringMemoizingSupplier<T> implements Supplier<T>, Serializable {
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private static final long serialVersionUID = 0;
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final Supplier<T> delegate;
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final long durationNanos;
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volatile transient long expirationNanos;
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volatile transient T value;
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ExpiringMemoizingSupplier(Supplier<T> supplier, long j, TimeUnit timeUnit) {
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this.delegate = (Supplier) Preconditions.checkNotNull(supplier);
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this.durationNanos = timeUnit.toNanos(j);
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Preconditions.checkArgument(j > 0, "duration (%s %s) must be > 0", j, timeUnit);
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}
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@Override // com.google.common.base.Supplier
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public T get() {
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long j = this.expirationNanos;
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long systemNanoTime = Platform.systemNanoTime();
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if (j == 0 || systemNanoTime - j >= 0) {
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synchronized (this) {
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if (j == this.expirationNanos) {
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T t = this.delegate.get();
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this.value = t;
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long j2 = systemNanoTime + this.durationNanos;
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if (j2 == 0) {
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j2 = 1;
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}
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this.expirationNanos = j2;
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return t;
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}
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}
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}
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return this.value;
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}
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public String toString() {
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String valueOf = String.valueOf(this.delegate);
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long j = this.durationNanos;
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StringBuilder sb = new StringBuilder(String.valueOf(valueOf).length() + 62);
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sb.append("Suppliers.memoizeWithExpiration(");
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sb.append(valueOf);
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sb.append(", ");
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sb.append(j);
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sb.append(", NANOS)");
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return sb.toString();
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}
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}
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public static <T> Supplier<T> ofInstance(T t) {
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return new SupplierOfInstance(t);
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}
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/* loaded from: classes2.dex */
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static class SupplierOfInstance<T> implements Supplier<T>, Serializable {
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private static final long serialVersionUID = 0;
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final T instance;
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SupplierOfInstance(T t) {
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this.instance = t;
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}
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public boolean equals(Object obj) {
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if (obj instanceof SupplierOfInstance) {
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return Objects.equal(this.instance, ((SupplierOfInstance) obj).instance);
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}
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return false;
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}
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public int hashCode() {
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return Objects.hashCode(this.instance);
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}
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public String toString() {
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String valueOf = String.valueOf(this.instance);
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StringBuilder sb = new StringBuilder(String.valueOf(valueOf).length() + 22);
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sb.append("Suppliers.ofInstance(");
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sb.append(valueOf);
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sb.append(")");
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return sb.toString();
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}
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@Override // com.google.common.base.Supplier
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public T get() {
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return this.instance;
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}
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}
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public static <T> Supplier<T> synchronizedSupplier(Supplier<T> supplier) {
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return new ThreadSafeSupplier(supplier);
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}
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/* loaded from: classes2.dex */
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static class ThreadSafeSupplier<T> implements Supplier<T>, Serializable {
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private static final long serialVersionUID = 0;
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final Supplier<T> delegate;
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ThreadSafeSupplier(Supplier<T> supplier) {
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this.delegate = (Supplier) Preconditions.checkNotNull(supplier);
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}
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@Override // com.google.common.base.Supplier
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public T get() {
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T t;
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synchronized (this.delegate) {
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t = this.delegate.get();
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}
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return t;
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}
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public String toString() {
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String valueOf = String.valueOf(this.delegate);
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StringBuilder sb = new StringBuilder(String.valueOf(valueOf).length() + 32);
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sb.append("Suppliers.synchronizedSupplier(");
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sb.append(valueOf);
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sb.append(")");
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return sb.toString();
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}
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}
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public static <T> Function<Supplier<T>, T> supplierFunction() {
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return SupplierFunctionImpl.INSTANCE;
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}
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/* loaded from: classes2.dex */
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enum SupplierFunctionImpl implements SupplierFunction<Object> {
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INSTANCE;
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@Override // com.google.common.base.Function
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public final Object apply(Supplier<Object> supplier) {
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return supplier.get();
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}
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@Override // java.lang.Enum
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public final String toString() {
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return "Suppliers.supplierFunction()";
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}
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}
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}
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