FileMD5.smali

.class public Lcom/FF/voiceengine/mgr/FileMD5;
.super Ljava/lang/Object;
.source "SourceFile"


# static fields
.field protected static hexDigits:[C

.field protected static messageDigest:Ljava/security/MessageDigest;


# direct methods
.method static constructor <clinit>()V
    .registers 1

    const/16 v0, 0x10

    new-array v0, v0, [C

    fill-array-data v0, :array_1a

    sput-object v0, Lcom/FF/voiceengine/mgr/FileMD5;->hexDigits:[C

    const/4 v0, 0x0

    sput-object v0, Lcom/FF/voiceengine/mgr/FileMD5;->messageDigest:Ljava/security/MessageDigest;

    :try_start_c
    const-string v0, "MD5"

    invoke-static {v0}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v0

    sput-object v0, Lcom/FF/voiceengine/mgr/FileMD5;->messageDigest:Ljava/security/MessageDigest;
    :try_end_14
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_c .. :try_end_14} :catch_15

    goto :goto_19

    :catch_15
    move-exception v0

    invoke-virtual {v0}, Ljava/lang/Throwable;->printStackTrace()V

    :goto_19
    return-void

    :array_1a
    .array-data 2
        0x30s
        0x31s
        0x32s
        0x33s
        0x34s
        0x35s
        0x36s
        0x37s
        0x38s
        0x39s
        0x61s
        0x62s
        0x63s
        0x64s
        0x65s
        0x66s
    .end array-data
.end method

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

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

    return-void
.end method

.method private static appendHexPair(BLjava/lang/StringBuffer;)V
    .registers 4

    sget-object v0, Lcom/FF/voiceengine/mgr/FileMD5;->hexDigits:[C

    and-int/lit16 v1, p0, 0xf0

    shr-int/lit8 v1, v1, 0x4

    aget-char v1, v0, v1

    and-int/lit8 p0, p0, 0xf

    aget-char p0, v0, p0

    invoke-virtual {p1, v1}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    invoke-virtual {p1, p0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    return-void
.end method

.method private static bufferToHex([B)Ljava/lang/String;
    .registers 3

    array-length v0, p0

    const/4 v1, 0x0

    invoke-static {p0, v1, v0}, Lcom/FF/voiceengine/mgr/FileMD5;->bufferToHex([BII)Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

.method private static bufferToHex([BII)Ljava/lang/String;
    .registers 5

    new-instance v0, Ljava/lang/StringBuffer;

    mul-int/lit8 v1, p2, 0x2

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

    add-int/2addr p2, p1

    :goto_8
    if-ge p1, p2, :cond_12

    aget-byte v1, p0, p1

    invoke-static {v1, v0}, Lcom/FF/voiceengine/mgr/FileMD5;->appendHexPair(BLjava/lang/StringBuffer;)V

    add-int/lit8 p1, p1, 0x1

    goto :goto_8

    :cond_12
    invoke-virtual {v0}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

.method public static getFileMD5String(Ljava/io/File;)Ljava/lang/String;
    .registers 8

    new-instance v0, Ljava/io/FileInputStream;

    invoke-direct {v0, p0}, Ljava/io/FileInputStream;-><init>(Ljava/io/File;)V

    invoke-virtual {v0}, Ljava/io/FileInputStream;->getChannel()Ljava/nio/channels/FileChannel;

    move-result-object v1

    sget-object v2, Ljava/nio/channels/FileChannel$MapMode;->READ_ONLY:Ljava/nio/channels/FileChannel$MapMode;

    const-wide/16 v3, 0x0

    invoke-virtual {p0}, Ljava/io/File;->length()J

    move-result-wide v5

    invoke-virtual/range {v1 .. v6}, Ljava/nio/channels/FileChannel;->map(Ljava/nio/channels/FileChannel$MapMode;JJ)Ljava/nio/MappedByteBuffer;

    move-result-object p0

    sget-object v1, Lcom/FF/voiceengine/mgr/FileMD5;->messageDigest:Ljava/security/MessageDigest;

    invoke-virtual {v1, p0}, Ljava/security/MessageDigest;->update(Ljava/nio/ByteBuffer;)V

    invoke-virtual {v0}, Ljava/io/FileInputStream;->close()V

    sget-object p0, Lcom/FF/voiceengine/mgr/FileMD5;->messageDigest:Ljava/security/MessageDigest;

    invoke-virtual {p0}, Ljava/security/MessageDigest;->digest()[B

    move-result-object p0

    invoke-static {p0}, Lcom/FF/voiceengine/mgr/FileMD5;->bufferToHex([B)Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

.method public static getFileMD5String(Ljava/lang/String;)Ljava/lang/String;
    .registers 2

    new-instance v0, Ljava/io/File;

    invoke-direct {v0, p0}, Ljava/io/File;-><init>(Ljava/lang/String;)V

    invoke-static {v0}, Lcom/FF/voiceengine/mgr/FileMD5;->getFileMD5String(Ljava/io/File;)Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

.method public static main([Ljava/lang/String;)V
    .registers 1

    invoke-static {}, Ljava/lang/System;->currentTimeMillis()J

    invoke-static {}, Ljava/lang/System;->currentTimeMillis()J

    return-void
.end method