private String getAttribute()

in saml-authentication-server/src/main/java/jetbrains/buildServer/auth/saml/plugin/SamlAuthenticationScheme.java [216:258]
41 lines of code
11 McCabe index (conditional complexity)

    private String getAttribute(@NotNull Auth saml, @NotNull SamlAttributeMappingSettings attributeMappingSettings) {
        switch (attributeMappingSettings.getMappingType()) {
            case SamlAttributeMappingSettings.TYPE_NONE: return "";
            case SamlAttributeMappingSettings.TYPE_NAME_ID: return saml.getNameId();
            case SamlAttributeMappingSettings.TYPE_OTHER:
                if (StringUtil.isEmpty(attributeMappingSettings.getCustomAttributeName())) {
                    LOG.warn("Custom attribute name is not set");
                    return "";
                }

                String attributeName = attributeMappingSettings.getCustomAttributeName();
                var attributeValue = saml.getAttribute(attributeName);
                if (attributeValue == null) {
                    LOG.warn(String.format("Attribute '%s' not found in SAML response", attributeName));
                    return "";
                }
                if (attributeValue.size() == 0) return "";

                return String.join(", ", attributeValue);
            case SamlAttributeMappingSettings.TYPE_EXPRESSION:
                if (StringUtil.isEmpty(attributeMappingSettings.getCustomAttributeName())) {
                    LOG.warn("Expression is not set");
                    return "";
                }
                var expression = attributeMappingSettings.getCustomAttributeName();
                var executor = new SpelExpressionExecutor();
                var context = new SpelExpressionContext(saml);
                try {
                    String result = executor.evaluate(expression, context);
                    if (StringUtils.isEmpty(result)) {
                        LOG.warn(String.format("Expression %s evaluated to empty value.", expression));
                    }
                    return result;
                } catch (Exception e) {
                    LOG.error(e.getMessage(), e);
                    LOG.warn(String.format("Available properties are: %s", context.getRootObjectAsMap().keySet().stream().collect(Collectors.joining(", "))));
                    return "";
                }
            default:
                LOG.warn(String.format("Unknown mapping type: %s", attributeMappingSettings.getMappingType()));
                return "";
        }
    }