HexUtil.smali

.class public Lcom/utils/HexUtil;
.super Ljava/lang/Object;
.source "HexUtil.java"


# direct methods
.method public constructor <init>()V
    .registers 1

    .prologue
    .line 6
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static HexString2Bytes(Ljava/lang/String;)[B
    .registers 6

    .prologue
    const/4 v0, 0x0

    .line 59
    invoke-virtual {p0}, Ljava/lang/String;->length()I

    move-result v1

    div-int/lit8 v1, v1, 0x2

    new-array v2, v1, [B

    move v1, v0

    .line 61
    :goto_a
    array-length v3, v2

    if-ge v0, v3, :cond_2a

    .line 62
    add-int/lit8 v3, v1, 0x1

    invoke-virtual {p0, v1}, Ljava/lang/String;->charAt(I)C

    move-result v4

    .line 63
    add-int/lit8 v1, v3, 0x1

    invoke-virtual {p0, v3}, Ljava/lang/String;->charAt(I)C

    move-result v3

    .line 64
    invoke-static {v4}, Lcom/utils/HexUtil;->parse(C)I

    move-result v4

    shl-int/lit8 v4, v4, 0x4

    invoke-static {v3}, Lcom/utils/HexUtil;->parse(C)I

    move-result v3

    or-int/2addr v3, v4

    int-to-byte v3, v3

    aput-byte v3, v2, v0

    .line 61
    add-int/lit8 v0, v0, 0x1

    goto :goto_a

    .line 66
    :cond_2a
    return-object v2
.end method

.method private static charToByte(C)B
    .registers 2

    .prologue
    .line 55
    const-string v0, "0123456789ABCDEF"

    invoke-virtual {v0, p0}, Ljava/lang/String;->indexOf(I)I

    move-result v0

    int-to-byte v0, v0

    return v0
.end method

.method private static parse(C)I
    .registers 2

    .prologue
    .line 71
    const/16 v0, 0x61

    if-lt p0, v0, :cond_b

    add-int/lit8 v0, p0, -0x61

    add-int/lit8 v0, v0, 0xa

    and-int/lit8 v0, v0, 0xf

    .line 73
    :goto_a
    return v0

    .line 72
    :cond_b
    const/16 v0, 0x41

    if-lt p0, v0, :cond_16

    add-int/lit8 v0, p0, -0x41

    add-int/lit8 v0, v0, 0xa

    and-int/lit8 v0, v0, 0xf

    goto :goto_a

    .line 73
    :cond_16
    add-int/lit8 v0, p0, -0x30

    and-int/lit8 v0, v0, 0xf

    goto :goto_a
.end method

.method public static toHexByte(Ljava/lang/String;)[B
    .registers 7

    .prologue
    .line 34
    if-eqz p0, :cond_a

    const-string v0, ""

    invoke-virtual {p0, v0}, Ljava/lang/String;->equals(Ljava/lang/Object;)Z

    move-result v0

    if-eqz v0, :cond_c

    .line 35
    :cond_a
    const/4 v0, 0x0

    .line 45
    :cond_b
    return-object v0

    .line 37
    :cond_c
    invoke-virtual {p0}, Ljava/lang/String;->toUpperCase()Ljava/lang/String;

    move-result-object v0

    .line 38
    invoke-virtual {v0}, Ljava/lang/String;->length()I

    move-result v1

    div-int/lit8 v2, v1, 0x2

    .line 39
    invoke-virtual {v0}, Ljava/lang/String;->toCharArray()[C

    move-result-object v3

    .line 40
    new-array v0, v2, [B

    .line 41
    const/4 v1, 0x0

    :goto_1d
    if-ge v1, v2, :cond_b

    .line 42
    mul-int/lit8 v4, v1, 0x2

    .line 43
    aget-char v5, v3, v4

    invoke-static {v5}, Lcom/utils/HexUtil;->charToByte(C)B

    move-result v5

    shl-int/lit8 v5, v5, 0x4

    add-int/lit8 v4, v4, 0x1

    aget-char v4, v3, v4

    invoke-static {v4}, Lcom/utils/HexUtil;->charToByte(C)B

    move-result v4

    or-int/2addr v4, v5

    int-to-byte v4, v4

    aput-byte v4, v0, v1

    .line 41
    add-int/lit8 v1, v1, 0x1

    goto :goto_1d
.end method

.method public static toHexString([B)Ljava/lang/String;
    .registers 7

    .prologue
    const/4 v1, 0x0

    .line 12
    new-instance v2, Ljava/lang/StringBuilder;

    const-string v0, ""

    invoke-direct {v2, v0}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    .line 13
    if-eqz p0, :cond_d

    array-length v0, p0

    if-gtz v0, :cond_f

    .line 14
    :cond_d
    const/4 v0, 0x0

    .line 24
    :goto_e
    return-object v0

    :cond_f
    move v0, v1

    .line 16
    :goto_10
    array-length v3, p0

    if-ge v0, v3, :cond_2b

    .line 17
    aget-byte v3, p0, v0

    and-int/lit16 v3, v3, 0xff

    .line 18
    invoke-static {v3}, Ljava/lang/Integer;->toHexString(I)Ljava/lang/String;

    move-result-object v3

    .line 19
    invoke-virtual {v3}, Ljava/lang/String;->length()I

    move-result v4

    const/4 v5, 0x2

    if-ge v4, v5, :cond_25

    .line 20
    invoke-virtual {v2, v1}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    .line 22
    :cond_25
    invoke-virtual {v2, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    .line 16
    add-int/lit8 v0, v0, 0x1

    goto :goto_10

    .line 24
    :cond_2b
    invoke-virtual {v2}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

    goto :goto_e
.end method