BlockFileLoader.smali

.class public Lorg/bitcoinj/utils/BlockFileLoader;
.super Ljava/lang/Object;
.source "BlockFileLoader.java"

# interfaces
.implements Ljava/lang/Iterable;
.implements Ljava/util/Iterator;


# annotations
.annotation system Ldalvik/annotation/Signature;
    value = {
        "Ljava/lang/Object;",
        "Ljava/lang/Iterable",
        "<",
        "Lorg/bitcoinj/core/Block;",
        ">;",
        "Ljava/util/Iterator",
        "<",
        "Lorg/bitcoinj/core/Block;",
        ">;"
    }
.end annotation


# instance fields
.field private currentFileStream:Ljava/io/FileInputStream;

.field private fileIt:Ljava/util/Iterator;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Ljava/util/Iterator",
            "<",
            "Ljava/io/File;",
            ">;"
        }
    .end annotation
.end field

.field private nextBlock:Lorg/bitcoinj/core/Block;

.field private params:Lorg/bitcoinj/core/NetworkParameters;


# direct methods
.method public constructor <init>(Lorg/bitcoinj/core/NetworkParameters;Ljava/util/List;)V
    .registers 4
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Lorg/bitcoinj/core/NetworkParameters;",
            "Ljava/util/List",
            "<",
            "Ljava/io/File;",
            ">;)V"
        }
    .end annotation

    .prologue
    const/4 v0, 0x0

    .line 79
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 75
    iput-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    .line 76
    iput-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->nextBlock:Lorg/bitcoinj/core/Block;

    .line 80
    invoke-interface {p2}, Ljava/util/List;->iterator()Ljava/util/Iterator;

    move-result-object v0

    iput-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->fileIt:Ljava/util/Iterator;

    .line 81
    iput-object p1, p0, Lorg/bitcoinj/utils/BlockFileLoader;->params:Lorg/bitcoinj/core/NetworkParameters;

    .line 82
    return-void
.end method

.method public static getReferenceClientBlockFileList()Ljava/util/List;
    .registers 10
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "()",
            "Ljava/util/List",
            "<",
            "Ljava/io/File;",
            ">;"
        }
    .end annotation

    .prologue
    const/4 v2, 0x0

    .line 55
    const-string v0, "os.name"

    invoke-static {v0}, Ljava/lang/System;->getProperty(Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/String;->toLowerCase()Ljava/lang/String;

    move-result-object v0

    .line 56
    const-string v1, "win"

    invoke-virtual {v0, v1}, Ljava/lang/String;->indexOf(Ljava/lang/String;)I

    move-result v1

    if-ltz v1, :cond_65

    .line 57
    new-instance v0, Ljava/lang/StringBuilder;

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

    const-string v1, "APPDATA"

    invoke-static {v1}, Ljava/lang/System;->getenv(Ljava/lang/String;)Ljava/lang/String;

    move-result-object v1

    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

    const-string v1, "\\.bitcoin\\blocks\\"

    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

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

    move-result-object v0

    .line 64
    :goto_2c
    new-instance v3, Ljava/util/LinkedList;

    invoke-direct {v3}, Ljava/util/LinkedList;-><init>()V

    move v1, v2

    .line 66
    :goto_32
    new-instance v4, Ljava/io/File;

    new-instance v5, Ljava/lang/StringBuilder;

    invoke-direct {v5}, Ljava/lang/StringBuilder;-><init>()V

    invoke-virtual {v5, v0}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v5

    sget-object v6, Ljava/util/Locale;->US:Ljava/util/Locale;

    const-string v7, "blk%05d.dat"

    const/4 v8, 0x1

    new-array v8, v8, [Ljava/lang/Object;

    invoke-static {v1}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object v9

    aput-object v9, v8, v2

    invoke-static {v6, v7, v8}, Ljava/lang/String;->format(Ljava/util/Locale;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;

    move-result-object v6

    invoke-virtual {v5, v6}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v5

    invoke-virtual {v5}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v5

    invoke-direct {v4, v5}, Ljava/io/File;-><init>(Ljava/lang/String;)V

    .line 67
    invoke-virtual {v4}, Ljava/io/File;->exists()Z

    move-result v5

    if-eqz v5, :cond_a9

    .line 69
    invoke-interface {v3, v4}, Ljava/util/List;->add(Ljava/lang/Object;)Z

    .line 65
    add-int/lit8 v1, v1, 0x1

    goto :goto_32

    .line 58
    :cond_65
    const-string v1, "mac"

    invoke-virtual {v0, v1}, Ljava/lang/String;->indexOf(Ljava/lang/String;)I

    move-result v1

    if-gez v1, :cond_75

    const-string v1, "darwin"

    invoke-virtual {v0, v1}, Ljava/lang/String;->indexOf(Ljava/lang/String;)I

    move-result v0

    if-ltz v0, :cond_8f

    .line 59
    :cond_75
    new-instance v0, Ljava/lang/StringBuilder;

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

    const-string v1, "user.home"

    invoke-static {v1}, Ljava/lang/System;->getProperty(Ljava/lang/String;)Ljava/lang/String;

    move-result-object v1

    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

    const-string v1, "/Library/Application Support/Bitcoin/blocks/"

    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

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

    move-result-object v0

    goto :goto_2c

    .line 61
    :cond_8f
    new-instance v0, Ljava/lang/StringBuilder;

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

    const-string v1, "user.home"

    invoke-static {v1}, Ljava/lang/System;->getProperty(Ljava/lang/String;)Ljava/lang/String;

    move-result-object v1

    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

    const-string v1, "/.bitcoin/blocks/"

    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

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

    move-result-object v0

    goto :goto_2c

    .line 71
    :cond_a9
    return-object v3
.end method

.method private loadNextBlock()V
    .registers 11

    .prologue
    const-wide/16 v8, 0xff

    const/4 v6, 0x0

    .line 103
    :cond_3
    :goto_3
    :try_start_3
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->fileIt:Ljava/util/Iterator;

    invoke-interface {v0}, Ljava/util/Iterator;->hasNext()Z

    move-result v0

    if-nez v0, :cond_23

    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    if-eqz v0, :cond_17

    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    invoke-virtual {v0}, Ljava/io/FileInputStream;->available()I
    :try_end_14
    .catch Ljava/io/IOException; {:try_start_3 .. :try_end_14} :catch_18

    move-result v0

    if-gtz v0, :cond_23

    .line 165
    :cond_17
    :goto_17
    return-void

    .line 106
    :catch_18
    move-exception v0

    iput-object v6, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    .line 107
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->fileIt:Ljava/util/Iterator;

    invoke-interface {v0}, Ljava/util/Iterator;->hasNext()Z

    move-result v0

    if-eqz v0, :cond_17

    .line 112
    :cond_23
    :goto_23
    :try_start_23
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    if-eqz v0, :cond_51

    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    invoke-virtual {v0}, Ljava/io/FileInputStream;->available()I
    :try_end_2c
    .catch Ljava/io/IOException; {:try_start_23 .. :try_end_2c} :catch_4e

    move-result v0

    if-lez v0, :cond_51

    .line 129
    :try_start_2f
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

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

    move-result v0

    .line 130
    :cond_35
    :goto_35
    const/4 v1, -0x1

    if-eq v0, v1, :cond_ae

    .line 131
    int-to-long v0, v0

    iget-object v2, p0, Lorg/bitcoinj/utils/BlockFileLoader;->params:Lorg/bitcoinj/core/NetworkParameters;

    invoke-virtual {v2}, Lorg/bitcoinj/core/NetworkParameters;->getPacketMagic()J

    move-result-wide v2

    const/16 v4, 0x18

    ushr-long/2addr v2, v4

    and-long/2addr v2, v8

    cmp-long v0, v0, v2

    if-eqz v0, :cond_72

    .line 132
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    invoke-virtual {v0}, Ljava/io/FileInputStream;->read()I
    :try_end_4c
    .catch Ljava/io/IOException; {:try_start_2f .. :try_end_4c} :catch_ec

    move-result v0

    goto :goto_35

    .line 115
    :catch_4e
    move-exception v0

    iput-object v6, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    .line 117
    :cond_51
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->fileIt:Ljava/util/Iterator;

    invoke-interface {v0}, Ljava/util/Iterator;->hasNext()Z

    move-result v0

    if-nez v0, :cond_5e

    .line 118
    iput-object v6, p0, Lorg/bitcoinj/utils/BlockFileLoader;->nextBlock:Lorg/bitcoinj/core/Block;

    .line 119
    iput-object v6, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    goto :goto_17

    .line 123
    :cond_5e
    :try_start_5e
    new-instance v1, Ljava/io/FileInputStream;

    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->fileIt:Ljava/util/Iterator;

    invoke-interface {v0}, Ljava/util/Iterator;->next()Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Ljava/io/File;

    invoke-direct {v1, v0}, Ljava/io/FileInputStream;-><init>(Ljava/io/File;)V

    iput-object v1, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;
    :try_end_6d
    .catch Ljava/io/FileNotFoundException; {:try_start_5e .. :try_end_6d} :catch_6e

    goto :goto_23

    .line 125
    :catch_6e
    move-exception v0

    iput-object v6, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    goto :goto_23

    .line 135
    :cond_72
    :try_start_72
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

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

    move-result v0

    .line 136
    int-to-long v2, v0

    iget-object v1, p0, Lorg/bitcoinj/utils/BlockFileLoader;->params:Lorg/bitcoinj/core/NetworkParameters;

    invoke-virtual {v1}, Lorg/bitcoinj/core/NetworkParameters;->getPacketMagic()J

    move-result-wide v4

    const/16 v1, 0x10

    ushr-long/2addr v4, v1

    and-long/2addr v4, v8

    cmp-long v1, v2, v4

    if-nez v1, :cond_35

    .line 138
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

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

    move-result v0

    .line 139
    int-to-long v2, v0

    iget-object v1, p0, Lorg/bitcoinj/utils/BlockFileLoader;->params:Lorg/bitcoinj/core/NetworkParameters;

    invoke-virtual {v1}, Lorg/bitcoinj/core/NetworkParameters;->getPacketMagic()J

    move-result-wide v4

    const/16 v1, 0x8

    ushr-long/2addr v4, v1

    and-long/2addr v4, v8

    cmp-long v1, v2, v4

    if-nez v1, :cond_35

    .line 141
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

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

    move-result v0

    .line 142
    int-to-long v2, v0

    iget-object v1, p0, Lorg/bitcoinj/utils/BlockFileLoader;->params:Lorg/bitcoinj/core/NetworkParameters;

    invoke-virtual {v1}, Lorg/bitcoinj/core/NetworkParameters;->getPacketMagic()J

    move-result-wide v4

    and-long/2addr v4, v8

    cmp-long v1, v2, v4

    if-nez v1, :cond_35

    .line 145
    :cond_ae
    const/4 v0, 0x4

    new-array v0, v0, [B

    .line 146
    iget-object v1, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    const/4 v2, 0x0

    const/4 v3, 0x4

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

    .line 147
    invoke-static {v0}, Lorg/bitcoinj/core/Utils;->reverseBytes([B)[B

    move-result-object v0

    const/4 v1, 0x0

    invoke-static {v0, v1}, Lorg/bitcoinj/core/Utils;->readUint32BE([BI)J

    move-result-wide v0

    .line 149
    const-wide/32 v2, 0x1e8480

    cmp-long v2, v0, v2

    if-gtz v2, :cond_3

    const-wide/16 v2, 0x0

    cmp-long v2, v0, v2

    if-lez v2, :cond_3

    .line 151
    long-to-int v2, v0

    new-array v2, v2, [B

    .line 152
    iget-object v3, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    const/4 v4, 0x0

    long-to-int v0, v0

    invoke-virtual {v3, v2, v4, v0}, Ljava/io/FileInputStream;->read([BII)I
    :try_end_d8
    .catch Ljava/io/IOException; {:try_start_72 .. :try_end_d8} :catch_ec

    .line 154
    :try_start_d8
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->params:Lorg/bitcoinj/core/NetworkParameters;

    invoke-virtual {v0}, Lorg/bitcoinj/core/NetworkParameters;->getDefaultSerializer()Lorg/bitcoinj/core/MessageSerializer;

    move-result-object v0

    invoke-virtual {v0, v2}, Lorg/bitcoinj/core/MessageSerializer;->makeBlock([B)Lorg/bitcoinj/core/Block;

    move-result-object v0

    iput-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->nextBlock:Lorg/bitcoinj/core/Block;
    :try_end_e4
    .catch Lorg/bitcoinj/core/ProtocolException; {:try_start_d8 .. :try_end_e4} :catch_e6
    .catch Ljava/io/IOException; {:try_start_d8 .. :try_end_e4} :catch_ec

    goto/16 :goto_17

    .line 156
    :catch_e6
    move-exception v0

    const/4 v0, 0x0

    :try_start_e8
    iput-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->nextBlock:Lorg/bitcoinj/core/Block;
    :try_end_ea
    .catch Ljava/io/IOException; {:try_start_e8 .. :try_end_ea} :catch_ec

    goto/16 :goto_3

    .line 161
    :catch_ec
    move-exception v0

    iput-object v6, p0, Lorg/bitcoinj/utils/BlockFileLoader;->currentFileStream:Ljava/io/FileInputStream;

    goto/16 :goto_3
.end method


# virtual methods
.method public hasNext()Z
    .registers 2

    .prologue
    .line 86
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->nextBlock:Lorg/bitcoinj/core/Block;

    if-nez v0, :cond_7

    .line 87
    invoke-direct {p0}, Lorg/bitcoinj/utils/BlockFileLoader;->loadNextBlock()V

    .line 88
    :cond_7
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->nextBlock:Lorg/bitcoinj/core/Block;

    if-eqz v0, :cond_d

    const/4 v0, 0x1

    :goto_c
    return v0

    :cond_d
    const/4 v0, 0x0

    goto :goto_c
.end method

.method public iterator()Ljava/util/Iterator;
    .registers 1
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "()",
            "Ljava/util/Iterator",
            "<",
            "Lorg/bitcoinj/core/Block;",
            ">;"
        }
    .end annotation

    .prologue
    .line 174
    return-object p0
.end method

.method public bridge synthetic next()Ljava/lang/Object;
    .registers 2

    .prologue
    .line 49
    invoke-virtual {p0}, Lorg/bitcoinj/utils/BlockFileLoader;->next()Lorg/bitcoinj/core/Block;

    move-result-object v0

    return-object v0
.end method

.method public next()Lorg/bitcoinj/core/Block;
    .registers 3

    .prologue
    .line 93
    invoke-virtual {p0}, Lorg/bitcoinj/utils/BlockFileLoader;->hasNext()Z

    move-result v0

    if-nez v0, :cond_c

    .line 94
    new-instance v0, Ljava/util/NoSuchElementException;

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

    throw v0

    .line 95
    :cond_c
    iget-object v0, p0, Lorg/bitcoinj/utils/BlockFileLoader;->nextBlock:Lorg/bitcoinj/core/Block;

    .line 96
    const/4 v1, 0x0

    iput-object v1, p0, Lorg/bitcoinj/utils/BlockFileLoader;->nextBlock:Lorg/bitcoinj/core/Block;

    .line 97
    return-object v0
.end method

.method public remove()V
    .registers 2

    .prologue
    .line 169
    new-instance v0, Ljava/lang/UnsupportedOperationException;

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

    throw v0
.end method