protected Map populateEntriesFromPreviousFailedPost()

in src/main/java/org/apache/sling/starter/access/models/Ace.java [324:362]
34 lines of code
8 McCabe index (conditional complexity)

    protected Map<String, String[]> populateEntriesFromPreviousFailedPost(Map<String, List<RestrictionItem>> allowMap,
            Map<String, List<RestrictionItem>> denyMap,
            Map<String, RestrictionDefinition> srMap) {
        Map<String, String[]> toDeleteFieldValues = getFieldValuesForPattern(RESTRICTION_PATTERN_DELETE);
        Map<String, String[]> fieldValues = getFieldValuesForPattern(RESTRICTION_PATTERN);
        Set<Entry<String, String[]>> fieldValuesEntrySet = fieldValues.entrySet();
        for (Entry<String, String[]> entry : fieldValuesEntrySet) {
            String deleteKey = String.format("%s%s", entry.getKey(), SlingPostConstants.SUFFIX_DELETE);
            if (toDeleteFieldValues.containsKey(deleteKey)) {
                //it was requested to be deleted in the previous POST attempt
                continue;
            }

            Matcher matcher = RESTRICTION_PATTERN.matcher(entry.getKey());
            if (matcher.matches()) {
                String privilegeName = matcher.group(1);
                String restrictionName = matcher.group(2);
                boolean isAllow = "Allow".equals(matcher.group(3));

                RestrictionDefinition rd = srMap.get(restrictionName);
                if (rd != null) {
                    Object value = entry.getValue();
                    String[] strings = entry.getValue();
                    if (rd.getRequiredType().isArray()) {
                        value = strings;
                    } else if (strings.length > 0) {
                        //use the first one?
                        value = strings[0];
                    }

                    RestrictionItem ri = new RestrictionItem(rd, value, false);
                    Map<String, List<RestrictionItem>> map = isAllow ? allowMap : denyMap;
                    List<RestrictionItem> list = map.computeIfAbsent(privilegeName, n -> new ArrayList<>());
                    list.add(ri);
                }
            }
        }
        return fieldValues;
    }