private Map getAllNamespaces()

in src/main/java/org/apache/maven/xinclude/stax/XIncludeStreamReader.java [469:500]

• 27 lines of code
• 8 McCabe index (conditional complexity)

    private Map<String, String> getAllNamespaces(Node element) {
        Map<String, String> namespaces = new LinkedHashMap<>();
        // Walk up the tree to collect all inherited namespaces
        Node current = element;
        while (current instanceof Element elem) {
            NamedNodeMap attributes = elem.getAttributes();
            // Check all attributes for namespace declarations
            for (int i = 0; i < attributes.getLength(); i++) {
                Attr attr = (Attr) attributes.item(i);
                String name = attr.getNodeName();
                // Handle xmlns:prefix declarations
                if (name.startsWith("xmlns:")) {
                    String prefix = name.substring(6); // length of "xmlns:"
                    if (!namespaces.containsKey(prefix)) {
                        namespaces.put(prefix, attr.getValue());
                    }
                }
                // Handle default namespace declaration
                else if ("xmlns".equals(name)) {
                    if (!namespaces.containsKey("")) {
                        namespaces.put("", attr.getValue());
                    }
                }
            }
            current = current.getParentNode();
        }
        // Add empty namespace
        if (!namespaces.containsKey("")) {
            namespaces.put("", "");
        }
        return namespaces;
    }