UnicodeInputStream.smali

.class public Lio/dcloud/common/adapter/io/UnicodeInputStream;
.super Ljava/io/InputStream;


# static fields
.field private static final BOM_SIZE:I = 0x4


# instance fields
.field defaultEnc:Ljava/lang/String;

.field encoding:Ljava/lang/String;

.field internalIn:Ljava/io/PushbackInputStream;

.field isInited:Z


# direct methods
.method public constructor <init>(Ljava/io/InputStream;Ljava/lang/String;)V
    .registers 5

    .line 1
    invoke-direct {p0}, Ljava/io/InputStream;-><init>()V

    const/4 v0, 0x0

    .line 2
    iput-boolean v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->isInited:Z

    .line 9
    new-instance v0, Ljava/io/PushbackInputStream;

    const/4 v1, 0x4

    invoke-direct {v0, p1, v1}, Ljava/io/PushbackInputStream;-><init>(Ljava/io/InputStream;I)V

    iput-object v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->internalIn:Ljava/io/PushbackInputStream;

    .line 10
    iput-object p2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->defaultEnc:Ljava/lang/String;

    return-void
.end method


# virtual methods
.method public close()V
    .registers 2
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    const/4 v0, 0x1

    .line 1
    iput-boolean v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->isInited:Z

    .line 2
    iget-object v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->internalIn:Ljava/io/PushbackInputStream;

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

    return-void
.end method

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

    .line 1
    iget-object v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->defaultEnc:Ljava/lang/String;

    return-object v0
.end method

.method public getEncoding()Ljava/lang/String;
    .registers 3

    .line 1
    iget-boolean v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->isInited:Z

    if-nez v0, :cond_13

    .line 3
    :try_start_4
    invoke-virtual {p0}, Lio/dcloud/common/adapter/io/UnicodeInputStream;->init()V
    :try_end_7
    .catch Ljava/io/IOException; {:try_start_4 .. :try_end_7} :catch_8

    goto :goto_13

    .line 5
    :catch_8
    new-instance v0, Ljava/lang/IllegalStateException;

    const-string v1, "Init method failed."

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

    .line 7
    invoke-virtual {v0, v0}, Ljava/lang/IllegalStateException;->initCause(Ljava/lang/Throwable;)Ljava/lang/Throwable;

    .line 8
    throw v0

    .line 11
    :cond_13
    :goto_13
    iget-object v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->encoding:Ljava/lang/String;

    return-object v0
.end method

.method protected init()V
    .registers 10
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 1
    iget-boolean v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->isInited:Z

    if-eqz v0, :cond_5

    return-void

    :cond_5
    const/4 v0, 0x4

    new-array v1, v0, [B

    .line 6
    iget-object v2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->internalIn:Ljava/io/PushbackInputStream;

    const/4 v3, 0x0

    invoke-virtual {v2, v1, v3, v0}, Ljava/io/PushbackInputStream;->read([BII)I

    move-result v0

    .line 8
    aget-byte v2, v1, v3

    const/4 v4, 0x3

    const/4 v5, -0x2

    const/4 v6, -0x1

    const/4 v7, 0x2

    const/4 v8, 0x1

    if-nez v2, :cond_2b

    aget-byte v2, v1, v8

    if-nez v2, :cond_2b

    aget-byte v2, v1, v7

    if-ne v2, v5, :cond_2b

    aget-byte v2, v1, v4

    if-ne v2, v6, :cond_2b

    const-string v2, "UTF-32BE"

    .line 10
    iput-object v2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->encoding:Ljava/lang/String;

    :goto_28
    add-int/lit8 v2, v0, -0x4

    goto :goto_7a

    .line 12
    :cond_2b
    aget-byte v2, v1, v3

    if-ne v2, v6, :cond_40

    aget-byte v2, v1, v8

    if-ne v2, v5, :cond_40

    aget-byte v2, v1, v7

    if-nez v2, :cond_40

    aget-byte v2, v1, v4

    if-nez v2, :cond_40

    const-string v2, "UTF-32LE"

    .line 14
    iput-object v2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->encoding:Ljava/lang/String;

    goto :goto_28

    .line 16
    :cond_40
    aget-byte v2, v1, v3

    const/16 v4, -0x11

    if-ne v2, v4, :cond_59

    aget-byte v2, v1, v8

    const/16 v4, -0x45

    if-ne v2, v4, :cond_59

    aget-byte v2, v1, v7

    const/16 v4, -0x41

    if-ne v2, v4, :cond_59

    const-string v2, "UTF-8"

    .line 18
    iput-object v2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->encoding:Ljava/lang/String;

    add-int/lit8 v2, v0, -0x3

    goto :goto_7a

    .line 20
    :cond_59
    aget-byte v2, v1, v3

    if-ne v2, v5, :cond_68

    aget-byte v2, v1, v8

    if-ne v2, v6, :cond_68

    const-string v2, "UTF-16BE"

    .line 21
    iput-object v2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->encoding:Ljava/lang/String;

    :goto_65
    add-int/lit8 v2, v0, -0x2

    goto :goto_7a

    .line 23
    :cond_68
    aget-byte v2, v1, v3

    if-ne v2, v6, :cond_75

    aget-byte v2, v1, v8

    if-ne v2, v5, :cond_75

    const-string v2, "UTF-16LE"

    .line 24
    iput-object v2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->encoding:Ljava/lang/String;

    goto :goto_65

    .line 28
    :cond_75
    iget-object v2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->defaultEnc:Ljava/lang/String;

    iput-object v2, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->encoding:Ljava/lang/String;

    move v2, v0

    :goto_7a
    if-lez v2, :cond_82

    .line 34
    iget-object v3, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->internalIn:Ljava/io/PushbackInputStream;

    sub-int/2addr v0, v2

    invoke-virtual {v3, v1, v0, v2}, Ljava/io/PushbackInputStream;->unread([BII)V

    .line 36
    :cond_82
    iput-boolean v8, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->isInited:Z

    return-void
.end method

.method public read()I
    .registers 2
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 1
    invoke-virtual {p0}, Lio/dcloud/common/adapter/io/UnicodeInputStream;->init()V

    const/4 v0, 0x1

    .line 2
    iput-boolean v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->isInited:Z

    .line 3
    iget-object v0, p0, Lio/dcloud/common/adapter/io/UnicodeInputStream;->internalIn:Ljava/io/PushbackInputStream;

    invoke-virtual {v0}, Ljava/io/PushbackInputStream;->read()I

    move-result v0

    return v0
.end method