private void initializePositions()

in resolver/src/main/java/org/apache/james/jspf/parser/RFC4408SPF1Parser.java [161:216]
48 lines of code
8 McCabe index (conditional complexity)

    private void initializePositions() {
        ArrayList<TermDefinition> matchResultPositions = new ArrayList<TermDefinition>();

        // FULL MATCH
        int posIndex = 0;
        matchResultPositions.ensureCapacity(posIndex + 1);
        matchResultPositions.add(posIndex, null);

        Iterator<TermDefinition> i;

        TERM_STEP_REGEX_MODIFIER_POS = ++posIndex;
        matchResultPositions.ensureCapacity(posIndex + 1);
        matchResultPositions.add(TERM_STEP_REGEX_MODIFIER_POS, null);
        i = termsFactory.getModifiersCollection().iterator();
        while (i.hasNext()) {
            TermDefinition td = i.next();
            int size = td.getMatchSize() + 1;
            for (int k = 0; k < size; k++) {
                posIndex++;
                matchResultPositions.ensureCapacity(posIndex + 1);
                matchResultPositions.add(posIndex, td);
            }
        }

        TERM_STEP_REGEX_QUALIFIER_POS = ++posIndex;
        matchResultPositions.ensureCapacity(posIndex + 1);
        matchResultPositions.add(posIndex, null);

        TERM_STEP_REGEX_MECHANISM_POS = ++posIndex;
        matchResultPositions.ensureCapacity(posIndex + 1);
        matchResultPositions.add(TERM_STEP_REGEX_MECHANISM_POS, null);
        i = termsFactory.getMechanismsCollection().iterator();
        while (i.hasNext()) {
            TermDefinition td = i.next();
            int size = td.getMatchSize() + 1;
            for (int k = 0; k < size; k++) {
                posIndex++;
                matchResultPositions.ensureCapacity(posIndex + 1);
                matchResultPositions.add(posIndex, td);
            }
        }

        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Parsing catch group positions: Modifiers[{}] Qualifier[{}] Mechanism[{}]",
                TERM_STEP_REGEX_MODIFIER_POS, TERM_STEP_REGEX_QUALIFIER_POS, TERM_STEP_REGEX_MECHANISM_POS);
            for (int k = 0; k < matchResultPositions.size(); k++) {
                LOGGER
                        .debug("{}) {}", k,
                            (matchResultPositions.get(k) != null ? ((TermDefinition) matchResultPositions
                                        .get(k)).getPattern().pattern()
                                        : null));
            }
        }
        
        this.matchResultPositions = Collections.synchronizedList(matchResultPositions);
    }