.class public abstract Lcom/google/firebase/messaging/ByteStreams;
.super Ljava/lang/Object;
.source "SourceFile"


# annotations
.annotation system Ldalvik/annotation/MemberClasses;
    value = {
        Lcom/google/firebase/messaging/ByteStreams$LimitedInputStream;
    }
.end annotation


# direct methods
.method public static combineBuffers(Ljava/util/Queue;I)[B
    .locals 6

    .line 97
    invoke-interface {p0}, Ljava/util/Collection;->isEmpty()Z

    move-result v0

    const/4 v1, 0x0

    if-eqz v0, :cond_0

    new-array p0, v1, [B

    return-object p0

    .line 100
    :cond_0
    invoke-interface {p0}, Ljava/util/Queue;->remove()Ljava/lang/Object;

    move-result-object v0

    check-cast v0, [B

    .line 101
    array-length v2, v0

    if-ne v2, p1, :cond_1

    return-object v0

    .line 104
    :cond_1
    array-length v2, v0

    sub-int v2, p1, v2

    .line 105
    invoke-static {v0, p1}, Ljava/util/Arrays;->copyOf([BI)[B

    move-result-object v0

    :goto_0
    if-lez v2, :cond_2

    .line 107
    invoke-interface {p0}, Ljava/util/Queue;->remove()Ljava/lang/Object;

    move-result-object v3

    check-cast v3, [B

    .line 108
    array-length v4, v3

    invoke-static {v2, v4}, Ljava/lang/Math;->min(II)I

    move-result v4

    sub-int v5, p1, v2

    .line 110
    invoke-static {v3, v1, v0, v5, v4}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    sub-int/2addr v2, v4

    goto :goto_0

    :cond_2
    return-object v0
.end method

.method public static limit(Ljava/io/InputStream;J)Ljava/io/InputStream;
    .locals 1

    .line 128
    new-instance v0, Lcom/google/firebase/messaging/ByteStreams$LimitedInputStream;

    invoke-direct {v0, p0, p1, p2}, Lcom/google/firebase/messaging/ByteStreams$LimitedInputStream;-><init>(Ljava/io/InputStream;J)V

    return-object v0
.end method

.method public static saturatedCast(J)I
    .locals 2

    const-wide/32 v0, 0x7fffffff

    cmp-long v0, p0, v0

    if-lez v0, :cond_0

    const p0, 0x7fffffff

    return p0

    :cond_0
    const-wide/32 v0, -0x80000000

    cmp-long v0, p0, v0

    if-gez v0, :cond_1

    const/high16 p0, -0x80000000

    return p0

    :cond_1
    long-to-int p0, p0

    return p0
.end method

.method public static toByteArray(Ljava/io/InputStream;)[B
    .locals 2

    .line 124
    new-instance v0, Ljava/util/ArrayDeque;

    const/16 v1, 0x14

    invoke-direct {v0, v1}, Ljava/util/ArrayDeque;-><init>(I)V

    const/4 v1, 0x0

    invoke-static {p0, v0, v1}, Lcom/google/firebase/messaging/ByteStreams;->toByteArrayInternal(Ljava/io/InputStream;Ljava/util/Queue;I)[B

    move-result-object p0

    return-object p0
.end method

.method public static toByteArrayInternal(Ljava/io/InputStream;Ljava/util/Queue;I)[B
    .locals 7

    .line 64
    invoke-static {p2}, Ljava/lang/Integer;->highestOneBit(I)I

    move-result v0

    const/4 v1, 0x2

    mul-int/2addr v0, v1

    const/16 v2, 0x80

    invoke-static {v2, v0}, Ljava/lang/Math;->max(II)I

    move-result v0

    const/16 v2, 0x2000

    invoke-static {v2, v0}, Ljava/lang/Math;->min(II)I

    move-result v0

    :goto_0
    const/4 v2, -0x1

    const v3, 0x7ffffff7

    if-ge p2, v3, :cond_3

    sub-int/2addr v3, p2

    .line 73
    invoke-static {v0, v3}, Ljava/lang/Math;->min(II)I

    move-result v3

    new-array v4, v3, [B

    .line 74
    invoke-interface {p1, v4}, Ljava/util/Queue;->add(Ljava/lang/Object;)Z

    const/4 v5, 0x0

    :goto_1
    if-ge v5, v3, :cond_1

    sub-int v6, v3, v5

    .line 78
    invoke-virtual {p0, v4, v5, v6}, Ljava/io/InputStream;->read([BII)I

    move-result v6

    if-ne v6, v2, :cond_0

    .line 80
    invoke-static {p1, p2}, Lcom/google/firebase/messaging/ByteStreams;->combineBuffers(Ljava/util/Queue;I)[B

    move-result-object p0

    return-object p0

    :cond_0
    add-int/2addr v5, v6

    add-int/2addr p2, v6

    goto :goto_1

    :cond_1
    int-to-long v2, v0

    const/16 v4, 0x1000

    if-ge v0, v4, :cond_2

    const/4 v0, 0x4

    goto :goto_2

    :cond_2
    move v0, v1

    :goto_2
    int-to-long v4, v0

    mul-long/2addr v2, v4

    .line 72
    invoke-static {v2, v3}, Lcom/google/firebase/messaging/ByteStreams;->saturatedCast(J)I

    move-result v0

    goto :goto_0

    .line 88
    :cond_3
    invoke-virtual {p0}, Ljava/io/InputStream;->read()I

    move-result p0

    if-ne p0, v2, :cond_4

    .line 90
    invoke-static {p1, v3}, Lcom/google/firebase/messaging/ByteStreams;->combineBuffers(Ljava/util/Queue;I)[B

    move-result-object p0

    return-object p0

    .line 92
    :cond_4
    new-instance p0, Ljava/lang/OutOfMemoryError;

    const-string p1, "input is too large to fit in a byte array"

    invoke-direct {p0, p1}, Ljava/lang/OutOfMemoryError;-><init>(Ljava/lang/String;)V

    throw p0
.end method