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# |
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# Description |
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# ----------- |
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< |
# Simple url->file lookup |
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> |
# Simple url->file lookup (persistent) |
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# |
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# Interface |
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# --------- |
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# new(cachedir) : A new URLcache object |
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> |
# new(cachedir) : A new URLcache object in a given directory |
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# store(url,file) : store a url/file combination |
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< |
# file(url) : retunr the file for a given url or "" if not there |
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> |
# file(url) : return the file for a given url |
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# delete(url) : remove from cache url |
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# clear() : clear cache |
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+ |
# filestore() : Return the directory to download files to |
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+ |
# filename(url) : return a unique file/dir in cache for the given url |
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+ |
# updatenumber(int) : return an integer number changed with each store |
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|
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package URL::URLcache; |
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require 5.004; |
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< |
use Utilities::HashDB; |
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< |
|
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< |
sub new { |
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< |
my $class=shift; |
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< |
$self={}; |
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bless $self, $class; |
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< |
$self->init(@_); |
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< |
return $self; |
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< |
} |
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< |
|
| 30 |
< |
sub init { |
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< |
my $self=shift; |
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< |
$self->{cachedir}=shift; |
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< |
|
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< |
$self->{cacheindex}=$self->{cachedir}."/index.db"; |
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< |
$self->{urlDB}=Utilities::HashDB->new(); |
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< |
if ( -f $self->{cacheindex} ) { |
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< |
$self->{urlDB}->restore($self->{cacheindex}); |
| 38 |
< |
} |
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< |
else { |
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< |
AddDir::adddir($self->{cachedir}); |
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< |
} |
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< |
} |
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< |
|
| 44 |
< |
sub file { |
| 45 |
< |
my $self=shift; |
| 46 |
< |
my $url=shift; |
| 47 |
< |
|
| 48 |
< |
my $found; |
| 49 |
< |
($found)=$self->{urlDB}->getdata($url); |
| 50 |
< |
return ( ($found eq "")?"":$found); |
| 51 |
< |
} |
| 52 |
< |
|
| 53 |
< |
sub delete { |
| 54 |
< |
my $self=shift; |
| 55 |
< |
my $url=shift; |
| 56 |
< |
$self->{urlDB}->deletedata($url); |
| 57 |
< |
$self->{urlDB}->store($self->{cacheindex}); |
| 58 |
< |
} |
| 59 |
< |
|
| 60 |
< |
sub store { |
| 61 |
< |
my $self=shift; |
| 62 |
< |
my $url=shift; |
| 63 |
< |
my $file=shift; |
| 64 |
< |
|
| 65 |
< |
$self->{urlDB}->deletedata($url); |
| 66 |
< |
$self->{urlDB}->setdata($file,$url); |
| 67 |
< |
$self->{urlDB}->store($self->{cacheindex}); |
| 68 |
< |
} |
| 69 |
< |
|
| 70 |
< |
sub clear { |
| 71 |
< |
my $self=shift; |
| 72 |
< |
unlink $self->{cacheindex}; |
| 73 |
< |
} |
| 23 |
> |
use Utilities::IndexedFileStore; |
| 24 |
> |
@ISA=qw(Utilities::IndexedFileStore) |
