few notes:
use dispatch map
our $dispatch_map = {
xml => 'My::XML',
json => 'My::JSON',
};
sub new {
...
die unless exists $dispatch_map->{$args{source}};
my $class = $dispatch_map->{$args{source}}
Module::Load::load ($class);
$self->{engine} = $class; # or $class->new ($self);
}
you can call foreign methods ...
$self->My::JSON::_init;
# or
my $method = $self->{engine} . '::_init';
$self->$method;
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Want more info? How to link
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