void getXmlnsAttr()

in src/main/java/org/apache/xml/security/c14n/implementations/XmlAttrStack.java [85:168]
82 lines of code
25 McCabe index (conditional complexity)

    void getXmlnsAttr(Collection<Attr> col) {
        int size = levels.size() - 1;
        if (cur == null) {
            cur = new XmlsStackElement();
            cur.level = currentLevel;
            lastlevel = currentLevel;
            levels.add(cur);
        }
        boolean parentRendered = false;
        XmlsStackElement e = null;
        if (size == -1) {
            parentRendered = true;
        } else {
            e = levels.get(size);
            if (e.rendered && e.level + 1 == currentLevel) {
                parentRendered = true;
            }
        }
        if (parentRendered) {
            col.addAll(cur.nodes);
            cur.rendered = true;
            return;
        }

        Map<String, Attr> loa = new HashMap<>();
        if (c14n11) {
            List<Attr> baseAttrs = new ArrayList<>();
            boolean successiveOmitted = true;
            for (; size >= 0; size--) {
                e = levels.get(size);
                if (e.rendered) {
                    successiveOmitted = false;
                }
                Iterator<Attr> it = e.nodes.iterator();
                while (it.hasNext() && successiveOmitted) {
                    Attr n = it.next();
                    if ("base".equals(n.getLocalName()) && !e.rendered) {
                        baseAttrs.add(n);
                    } else if (!loa.containsKey(n.getName())) {
                        loa.put(n.getName(), n);
                    }
                }
            }
            if (!baseAttrs.isEmpty()) {
                String base = null;
                Attr baseAttr = null;
                for (Attr n : col) {
                    if ("base".equals(n.getLocalName())) {
                        base = n.getValue();
                        baseAttr = n;
                        break;
                    }
                }
                for (Attr n : baseAttrs) {
                    if (base == null) {
                        base = n.getValue();
                        baseAttr = n;
                    } else {
                        try {
                            base = joinURI(n.getValue(), base);
                        } catch (URISyntaxException ue) {
                            LOG.log(Level.DEBUG, ue.getMessage(), ue);
                        }
                    }
                }
                if (base != null && base.length() != 0) {
                    baseAttr.setValue(base);
                    col.add(baseAttr);
                }
            }
        } else {
            for (; size >= 0; size--) {
                e = levels.get(size);
                for (Attr n : e.nodes) {
                    if (!loa.containsKey(n.getName())) {
                        loa.put(n.getName(), n);
                    }
                }
            }
        }

        cur.rendered = true;
        col.addAll(loa.values());
    }