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package Iterator::File::Status; |
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## $Id: Status.pm,v 1.11 2008/06/18 06:47:51 wdr1 Exp $ |
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42951
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use 5.006; |
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use strict; |
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use warnings; |
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use UNIVERSAL 'can'; |
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our $VERSION = substr(q$Revision: 1.11 $, 10); |
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our %default_config = |
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( |
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'_status_scale' => 1, |
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'status_line_interval' => 10, |
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'status_time_interval' => 2, |
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'status_line' => "Processing row '%d'...\n", |
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'status_filehandle' => \*STDERR, |
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'status_method' => 'emit_status_logarithmic', |
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'_status_time_last' => time, |
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); |
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sub new { |
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my ($class, %config) = @_; |
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%config = (%default_config, %config); |
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my $self = bless(\%config, $class); |
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unless (can( __PACKAGE__, $config{'status_method'} )) { |
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confess($default_config{'status_method'} . |
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" is not a valid status_method arguement!"); |
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} |
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return $self; |
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} |
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sub emit_status_logarithmic { |
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my ($self, $marker) = @_; |
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my $status = ""; |
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my $scale = $self->{_status_scale}; |
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return if ($marker % $scale); |
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if ($marker >= $self->{_status_scale} * 10) { |
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$self->{_status_scale} *= 10; |
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} |
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$self->emit_status_line( $marker ); |
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} |
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sub emit_status_fixed_line_interval { |
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my ($self, $marker) = @_; |
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my $status = ""; |
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my $interval = $self->{status_line_interval}; |
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return if ($marker % $interval); |
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$self->emit_status_line( $marker ); |
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} |
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sub emit_status_fixed_time_interval { |
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my ($self, $marker) = @_; |
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return unless (time - $self->{'_status_time_last'} >= $self->{'status_time_interval'}); |
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$self->{'_status_time_last'} = time; |
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$self->emit_status_line( $marker ); |
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} |
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80
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81
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sub emit_status_line { |
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my ($self, $marker) = @_; |
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my $fh = $self->{'status_filehandle'}; |
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printf $fh $self->{'status_line'}, $marker; |
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} |
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sub emit_status { |
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my $self = shift; |
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my $method = $self->{'status_method'}; |
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$self->$method( @_ ); |
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} |
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1; |
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__END__ |