+ my $plugins = $pdata->{plugins};
+
+ my $props = {};
+
+ my $copy_property = sub {
+ my ($src) = @_;
+
+ my $res = {};
+ foreach my $k (keys %$src) {
+ $res->{$k} = $src->{$k};
+ }
+
+ return $res;
+ };
+
+ foreach my $p (keys %$propertyList) {
+ if (!$propertyList->{$p}->{optional}) {
+ $props->{$p} = $propertyList->{$p};
+ next;
+ }
+
+ my $required = 1;
+
+ my $copts = $class->options();
+ $required = 0 if defined($copts->{$p}) && $copts->{$p}->{optional};
+
+ foreach my $t (keys %$plugins) {
+ my $opts = $pdata->{options}->{$t} || {};
+ $required = 0 if !defined($opts->{$p}) || $opts->{$p}->{optional};
+ }
+
+ if ($required) {
+ # make a copy, because we modify the optional property
+ my $res = &$copy_property($propertyList->{$p});
+ $res->{optional} = 0;
+ $props->{$p} = $res;
+ } else {
+ $props->{$p} = $propertyList->{$p};
+ }
+ }