File Coverage

lib/File/UStore.pm

Criterion	Covered	Total	%
statement	9	11	81.8
branch			n/a
condition			n/a
subroutine	4	4	100.0
pod			n/a
total	13	15	86.6

package File::UStore;

use strict;
use warnings;

# PODNAME: File::UStore

# ABSTRACT: UUID based File Storage Module.

our $VERSION = '0.16'; # VERSION

# Dependencies

use 5.006;
use UUID;
use File::Copy;
use File::Path;
use File::Spec;

require Exporter;
use AutoLoader qw(AUTOLOAD);

our @ISA = qw(Exporter);

our %EXPORT_TAGS = (
    'all' => [
        qw(

          )
    ]
);

our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );

our @EXPORT = qw( );


sub new {

    my ( $this, %params ) = @_;

    my $class = ref($this) || $this;
    my $self = {};
    bless $self, $class;

    if ( exists( $params{path} ) ) {
        $self->{path} = $params{path};
    }
    else {
        $self->{path} = "~/.ustore";
    }

    if ( exists( $params{prefix} ) ) {
        $self->{prefix} = $params{prefix};
    }
    else {
        $self->{prefix} = "";
    }

    if ( exists( $params{depth} ) ) {
        $self->{depth} = $params{depth};
        $self->{depth} = 35 if ( $params{depth} > 35 );

    }
    else {
        $self->{depth} = 3;
    }

    if ( !( -e $self->{path} ) ) {
        mkdir( $self->{path} )
          or die "Unable to create directory : $self->{path}";
    }

    return $self;
}


sub add {

    my ( $self, $file ) = @_;

    my ( $uuid, $uuidString );
    UUID::generate($uuid);
    UUID::unparse( $uuid, $uuidString );

    my $SSubDir;
    my @tempstr = split( //, $uuidString );
    my @dirtree;
    for ( 1 .. $self->{depth} ) {
        push @dirtree, shift @tempstr;
    }
    $SSubDir = File::Spec->catdir( $self->{path}, @dirtree );

    if ( !( -e $SSubDir ) ) {

        mkpath($SSubDir)
          or die "Unable to create subdirectories $SSubDir in the store";
    }

    my $destStoredFile =
      File::Spec->catfile( $SSubDir, $self->{prefix} . $uuidString );

    copy( $file, $destStoredFile )
      or die "Unable to copy file into ustore as $destStoredFile";

    return $uuidString;
}


sub remove {

    my ( $self, $id ) = @_;

    my $destStoredFile;

    if ( !( defined($id) ) ) { return; }

    my $SSubDir;
    my @tempstr = split( //, $id );
    my @dirtree;
    for ( 1 .. $self->{depth} ) {
        push @dirtree, shift @tempstr;
    }
    $SSubDir = File::Spec->catdir( $self->{path}, @dirtree );

    $destStoredFile = File::Spec->catfile( $SSubDir, $self->{prefix} . $id );

    if ( -e $destStoredFile ) {

        unlink($destStoredFile) or return;

    }
    else {
        return;
    }

}


sub get {

    my ( $self, $id ) = @_;

    my $destStoredFile;

    my $SSubDir;
    my @tempstr = split( //, $id );
    my @dirtree;
    for ( 1 .. $self->{depth} ) {
        push @dirtree, shift @tempstr;
    }
    $SSubDir = File::Spec->catdir( $self->{path}, @dirtree );

    $destStoredFile = File::Spec->catfile( $SSubDir, $self->{prefix} . $id );

    if ( -e $destStoredFile ) {
        open( my $fh, '<', $destStoredFile );
        return *$fh;
    }
    else {
        return;
    }
}


sub getPath {

    my ( $self, $id ) = @_;

    my $destStoredFile;

    my $SSubDir;
    my @tempstr = split( //, $id );
    my @dirtree;
    for ( 1 .. $self->{depth} ) {
        push @dirtree, shift @tempstr;
    }
    $SSubDir = File::Spec->catdir( $self->{path}, @dirtree );

    $destStoredFile = File::Spec->catfile( $SSubDir, $self->{prefix} . $id );

    if ( -e $destStoredFile ) {
        return $destStoredFile;
    }
    else {
        return;
    }
}

# local Function
sub _printPath {
    my ($self) = @_;

    return $self->{path};

}

1;

__END__