private boolean productMatchesListing(Product p, Listing l) {
return l.getTitleKey().contains(p.getModelKey());
}
private Collection<Product> productsForManufacturer(Listing listing) {
if (!products.containsKey(listing.getManufacturerKey())) {
return new ArrayList<Product>();
}
return products.get(listing.getManufacturerKey());
}