67 lines
2.4 KiB
Java
67 lines
2.4 KiB
Java
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package com.google.common.hash;
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import com.google.common.base.Preconditions;
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import java.io.Serializable;
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import java.util.zip.Checksum;
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/* JADX INFO: Access modifiers changed from: package-private */
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/* loaded from: classes2.dex */
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public final class ChecksumHashFunction extends AbstractHashFunction implements Serializable {
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private static final long serialVersionUID = 0;
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private final int bits;
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private final ImmutableSupplier<? extends Checksum> checksumSupplier;
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private final String toString;
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/* JADX INFO: Access modifiers changed from: package-private */
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public ChecksumHashFunction(ImmutableSupplier<? extends Checksum> immutableSupplier, int i, String str) {
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this.checksumSupplier = (ImmutableSupplier) Preconditions.checkNotNull(immutableSupplier);
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Preconditions.checkArgument(i == 32 || i == 64, "bits (%s) must be either 32 or 64", i);
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this.bits = i;
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this.toString = (String) Preconditions.checkNotNull(str);
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}
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@Override // com.google.common.hash.HashFunction
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public final Hasher newHasher() {
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return new ChecksumHasher(this.checksumSupplier.get());
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}
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/* loaded from: classes2.dex */
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final class ChecksumHasher extends AbstractByteHasher {
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private final Checksum checksum;
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final ChecksumHashFunction this$0;
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private ChecksumHasher(ChecksumHashFunction checksumHashFunction, Checksum checksum) {
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this.this$0 = checksumHashFunction;
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this.checksum = (Checksum) Preconditions.checkNotNull(checksum);
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}
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@Override // com.google.common.hash.AbstractByteHasher
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protected final void update(byte b) {
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this.checksum.update(b);
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}
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@Override // com.google.common.hash.AbstractByteHasher
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protected final void update(byte[] bArr, int i, int i2) {
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this.checksum.update(bArr, i, i2);
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}
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@Override // com.google.common.hash.Hasher
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public final HashCode hash() {
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long value = this.checksum.getValue();
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if (this.this$0.bits == 32) {
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return HashCode.fromInt((int) value);
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}
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return HashCode.fromLong(value);
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}
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}
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public final String toString() {
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return this.toString;
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}
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@Override // com.google.common.hash.HashFunction
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public final int bits() {
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return this.bits;
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}
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}
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