public static User parse()

in src/main/java/org/opensearch/commons/authuser/User.java [133:174]
41 lines of code
10 McCabe index (conditional complexity)

    public static User parse(XContentParser parser) throws IOException {
        String name = "";
        List<String> backendRoles = new ArrayList<>();
        List<String> roles = new ArrayList<>();
        List<String> customAttNames = new ArrayList<>();
        String requestedTenant = null;

        ensureExpectedToken(XContentParser.Token.START_OBJECT, parser.currentToken(), parser);
        while (parser.nextToken() != XContentParser.Token.END_OBJECT) {
            String fieldName = parser.currentName();
            parser.nextToken();
            switch (fieldName) {
                case NAME_FIELD:
                    name = parser.text();
                    break;
                case BACKEND_ROLES_FIELD:
                    ensureExpectedToken(XContentParser.Token.START_ARRAY, parser.currentToken(), parser);
                    while (parser.nextToken() != XContentParser.Token.END_ARRAY) {
                        backendRoles.add(parser.text());
                    }
                    break;
                case ROLES_FIELD:
                    ensureExpectedToken(XContentParser.Token.START_ARRAY, parser.currentToken(), parser);
                    while (parser.nextToken() != XContentParser.Token.END_ARRAY) {
                        roles.add(parser.text());
                    }
                    break;
                case CUSTOM_ATTRIBUTE_NAMES_FIELD:
                    ensureExpectedToken(XContentParser.Token.START_ARRAY, parser.currentToken(), parser);
                    while (parser.nextToken() != XContentParser.Token.END_ARRAY) {
                        customAttNames.add(parser.text());
                    }
                    break;
                case REQUESTED_TENANT_FIELD:
                    requestedTenant = parser.textOrNull();
                    break;
                default:
                    break;
            }
        }
        return new User(name, backendRoles, roles, customAttNames, requestedTenant);
    }