kivitendo/SL/Helper/Csv/Dispatcher.pm @ 01a4e61c
| 17d58914 | Sven Schöling | package SL::Helper::Csv::Dispatcher;
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use strict;
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use Data::Dumper;
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use Carp;
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use Scalar::Util qw(weaken);
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| 7ec8b55e | Bernd Bleßmann | use List::MoreUtils qw(all pairwise);
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| 17d58914 | Sven Schöling | use Rose::Object::MakeMethods::Generic scalar => [ qw(
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| 7ec8b55e | Bernd Bleßmann | _specs _row_class _row_spec _errors
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| 17d58914 | Sven Schöling | ) ];
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| c46898c7 | Sven Schöling | use SL::Helper::Csv::Error;
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| 17d58914 | Sven Schöling | sub new {
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my ($class, $parent) = @_;
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my $self = bless { }, $class;
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weaken($self->{_csv} = $parent);
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$self->_errors([]);
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return $self;
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}
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sub dispatch {
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| c8473408 | Bernd Bleßmann | my ($self, $line) = @_;
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| af205393 | Bernd Bleßmann | my $class = $self->_class_by_line($line);
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croak 'no class given' unless $class;
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| 17d58914 | Sven Schöling | |||
| af205393 | Bernd Bleßmann | eval "require " . $class;
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my $obj = $class->new;
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my $specs = $self->_specs_by_line($line);
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for my $spec (@{ $specs }) {
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| 17d58914 | Sven Schöling | $self->apply($obj, $spec, $line->{$spec->{key}});
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}
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| c8473408 | Bernd Bleßmann | |||
return $obj;
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| 17d58914 | Sven Schöling | }
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| af205393 | Bernd Bleßmann | sub _class_by_line {
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my ($self, $line) = @_;
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| 7ec8b55e | Bernd Bleßmann | # initialize lookup hash if not already done
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if ($self->_csv->is_multiplexed && ! defined $self->_row_class ) {
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$self->_row_class({ map { $_->{row_ident} => $_->{class} } @{ $self->_csv->profile } });
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}
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| af205393 | Bernd Bleßmann | if ($self->_csv->is_multiplexed) {
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| 7ec8b55e | Bernd Bleßmann | return $self->_row_class->{$line->{datatype}};
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| af205393 | Bernd Bleßmann | } else {
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| 7ec8b55e | Bernd Bleßmann | return $self->_csv->profile->[0]->{class};
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| af205393 | Bernd Bleßmann | }
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}
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sub _specs_by_line {
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my ($self, $line) = @_;
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| 7ec8b55e | Bernd Bleßmann | # initialize lookup hash if not already done
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if ($self->_csv->is_multiplexed && ! defined $self->_row_spec ) {
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| d161c66c | Bernd Bleßmann | $self->_row_spec({ pairwise { no warnings 'once'; $a->{row_ident} => $b } @{ $self->_csv->profile }, @{ $self->_specs } });
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| 7ec8b55e | Bernd Bleßmann | }
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| af205393 | Bernd Bleßmann | if ($self->_csv->is_multiplexed) {
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| 7ec8b55e | Bernd Bleßmann | return $self->_row_spec->{$line->{datatype}};
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| af205393 | Bernd Bleßmann | } else {
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| 7ec8b55e | Bernd Bleßmann | return $self->_specs->[0];
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| af205393 | Bernd Bleßmann | }
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}
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| 17d58914 | Sven Schöling | sub apply {
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my ($self, $obj, $spec, $value) = @_;
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return unless $value;
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for my $step (@{ $spec->{steps} }) {
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| 90af0ce7 | Sven Schöling | my ($acc, $class, $index) = @$step;
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| 17d58914 | Sven Schöling | if ($class) {
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| 90af0ce7 | Sven Schöling | |||
# autovifify
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if (defined $index) {
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if (! $obj->$acc || !$obj->$acc->[$index]) {
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my @objects = $obj->$acc;
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$obj->$acc(@objects, map { $class->new } 0 .. $index - @objects);
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}
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$obj = $obj->$acc->[$index];
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} else {
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if (! $obj->$acc) {
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$obj->$acc($class->new);
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}
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$obj = $obj->$acc;
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}
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| 17d58914 | Sven Schöling | } else {
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$obj->$acc($value);
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}
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}
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}
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sub is_known {
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my ($self, $col) = @_;
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return grep { $col eq $_->{key} } $self->_specs;
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}
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sub parse_profile {
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my ($self, %params) = @_;
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| af205393 | Bernd Bleßmann | my @specs;
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| 8ad3a60e | Bernd Bleßmann | my $csv_profile = $self->_csv->profile;
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| af205393 | Bernd Bleßmann | my $i = 0;
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| 048a6eb7 | Bernd Bleßmann | foreach my $header (@{ $self->_csv->header }) {
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| 8ad3a60e | Bernd Bleßmann | my $spec = $self->_parse_profile(profile => $csv_profile->[$i]->{profile},
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class => $csv_profile->[$i]->{class},
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| af205393 | Bernd Bleßmann | header => $header);
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push @specs, $spec;
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$i++;
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}
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$self->_specs(\@specs);
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| c80cdcf8 | Bernd Bleßmann | $self->_csv->_push_error($self->errors);
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| af205393 | Bernd Bleßmann | return ! $self->errors;
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}
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sub _parse_profile {
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my ($self, %params) = @_;
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my $profile = $params{profile};
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my $class = $params{class};
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my $header = $params{header};
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| 17d58914 | Sven Schöling | my @specs;
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for my $col (@$header) {
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next unless $col;
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| 09294068 | Sven Schöling | if ($self->_csv->strict_profile) {
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if (exists $profile->{$col}) {
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| af205393 | Bernd Bleßmann | push @specs, $self->make_spec($col, $profile->{$col}, $class);
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| 09294068 | Sven Schöling | } else {
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$self->unknown_column($col, undef);
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}
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} else {
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| a54fc392 | Sven Schöling | if (exists $profile->{$col}) {
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| af205393 | Bernd Bleßmann | push @specs, $self->make_spec($col, $profile->{$col}, $class);
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| a54fc392 | Sven Schöling | } else {
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| af205393 | Bernd Bleßmann | push @specs, $self->make_spec($col, $col, $class);
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| a54fc392 | Sven Schöling | }
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| 09294068 | Sven Schöling | }
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| 17d58914 | Sven Schöling | }
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| af205393 | Bernd Bleßmann | return \@specs;
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| 17d58914 | Sven Schöling | }
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sub make_spec {
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| af205393 | Bernd Bleßmann | my ($self, $col, $path, $cur_class) = @_;
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| 17d58914 | Sven Schöling | |||
my $spec = { key => $col, steps => [] };
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| a54fc392 | Sven Schöling | |||
return unless $path;
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| 457ad636 | Sven Schöling | return unless $cur_class;
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| 90af0ce7 | Sven Schöling | for my $step_index ( split /\.(?!\d)/, $path ) {
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my ($step, $index) = split /\./, $step_index;
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| 17d58914 | Sven Schöling | if ($cur_class->can($step)) {
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| 45119ead | Sven Schöling | if (my $rel = $cur_class->meta->relationship($step)) { #a
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if ($index && ! $rel->isa('Rose::DB::Object::Metadata::Relationship::OneToMany')) {
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$self->_push_error([
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$path,
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undef,
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"Profile path error. Indexed relationship is not OneToMany around here: '$step_index'",
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undef,
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0,
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]);
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return;
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} else {
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my $next_class = $cur_class->meta->relationship($step)->class;
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push @{ $spec->{steps} }, [ $step, $next_class, $index ];
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$cur_class = $next_class;
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| 7358571b | Sven Schöling | eval "require $cur_class; 1" or die "could not load class '$cur_class'";
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| 45119ead | Sven Schöling | }
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| 17d58914 | Sven Schöling | } else { # simple dispatch
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push @{ $spec->{steps} }, [ $step ];
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last;
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}
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} else {
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$self->unknown_column($col, $path);
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}
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}
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return $spec;
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}
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sub unknown_column {
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my ($self, $col, $path) = @_;
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return if $self->_csv->ignore_unknown_columns;
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$self->_push_error([
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$col,
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undef,
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"header field '$col' is not recognized",
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undef,
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0,
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]);
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}
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sub _csv {
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$_[0]->{_csv};
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}
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sub errors {
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@{ $_[0]->_errors }
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}
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sub _push_error {
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my ($self, @errors) = @_;
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| c46898c7 | Sven Schöling | my @new_errors = ($self->errors, map { SL::Helper::Csv::Error->new(@$_) } @errors);
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| 17d58914 | Sven Schöling | $self->_errors(\@new_errors);
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}
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1;
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