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#!/usr/bin/perl |
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|
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## ------------------------------------------------------------------------ |
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## $Id: File.pm,v 1.4 2003/02/11 05:15:45 joko Exp $ |
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## ------------------------------------------------------------------------ |
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## $Log: File.pm,v $ |
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## Revision 1.4 2003/02/11 05:15:45 joko |
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## - no Exporter any more |
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## |
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## Revision 1.3 2003/02/09 04:54:27 joko |
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## - refactored lots of code to Data::Storage::Handler::File::Basic |
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## - sorry! |
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## |
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## ------------------------------------------------------------------------ |
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|
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|
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package Data::Storage::Handler::File; |
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|
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use strict; |
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use warnings; |
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|
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use base qw( DesignPattern::Object ); |
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|
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|
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use Data::Storage::Handler::File::Basic qw( s2f a2f f2s ); |
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|
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sub constructor { |
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my $self = shift; |
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# patch - backward compatibility |
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if (!$self->{filename} && $self->{path}) { |
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$self->{filename} = $self->{path}; |
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} |
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} |
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|
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sub _stat { |
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my $self = shift; |
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if (-e $self->{filename}) { |
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$self->{_meta}->{exists} = 1; |
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} else { |
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$self->{_meta}->{exists} = 0; |
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} |
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} |
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|
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sub _read { |
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my $self = shift; |
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$self->_stat(); |
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if ($self->exists()) { |
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$self->{_buffer} = f2s($self->{filename}); |
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} |
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#$self->{_buffer_orig} = f2s($self->{filename}); |
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} |
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|
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sub toString { |
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my $self = shift; |
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$self->_read(); |
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return $self->{_buffer}; |
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} |
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|
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sub addSuffix { |
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my $self = shift; |
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my $suffix = shift; |
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$self->{filename} .= ".$suffix"; |
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} |
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|
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sub save { |
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my $self = shift; |
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if ($self->{_buffer}) { |
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s2f($self->{filename}, $self->{_buffer}); |
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} else { |
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print "please load $self->{filename} before saving.", "\n"; |
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} |
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} |
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|
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sub backup { |
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my $self = shift; |
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my $options = shift; |
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my $path = $self->{filename}; |
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$path .= '.' . $options->{suffix} if $options->{suffix}; |
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s2f($path, $self->{_buffer_orig}); |
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} |
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|
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sub matches { |
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my $self = shift; |
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my $pattern = shift; |
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$self->_read(); |
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my $eval = '$self->{_buffer} =~ ' . $pattern . ';'; |
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if (eval($eval)) { return 1; } |
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} |
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|
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sub exists { |
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my $self = shift; |
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$self->_stat(); |
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return $self->{_meta}->{exists}; |
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} |
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|
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1; |
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__END__ |
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