gistfile1.java

if (namedParameters != null && !namedParameters.isEmpty()) {
            // fall back on simple document if no type defined on page provider
            if (searchDocumentModel == null) {
                searchDocumentModel = new SimpleDocumentModel();
            }
            for (Map.Entry<String, String> entry : namedParameters.entrySet()) {
                String key = entry.getKey();
                String value = entry.getValue();
                try {
                    DocumentHelper.setProperty(session, searchDocumentModel, key, value, true);
                } catch (PropertyNotFoundException | IOException e) {
                    // assume this is a "pure" named parameter, not part of the search doc schema
                    continue;
                }
            }
            searchDocumentModel.putContextData(PageProviderService.NAMED_PARAMETERS, namedParameters);
        }