* @param pattern
     *            The pattern string
     * @return The converted {@literal double}
     */
    public static double toPrimitiveDouble(final Object o, final String pattern) {
        if (o == null) {
            return 0;
        } else if (o instanceof Number) {
            return ((Number) o).doubleValue();
        } else if (o instanceof String) {
            return toPrimitiveDouble((String) o);

  static class FactoryMethodAcceptsNull {

    final String name;

    private FactoryMethodAcceptsNull(String name) {
      this.name = name;
    }

    static FactoryMethodAcceptsNull create(@Nullable String name) {
      return new FactoryMethodAcceptsNull(name);
    }
  }

  static class FactoryMethodDoesNotAcceptNull {

    final String name;

    public String toString() {
        return "Role [name=" + name + "]";
    }

    public Map<String, String> getAttributes() {
        return attributes;
    }

    public void setAttributes(final Map<String, String> attributes) {
        this.attributes = attributes;
    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = new HashMap<>();
        if (name != null) {

	ReflectValue         reflect.Value
	Clauses              map[string]clause.Clause
	BuildClauses         []string
	Distinct             bool
	Selects              []string          // selected columns
	Omits                []string          // omit columns
	ColumnMapping        map[string]string // map columns
	Joins                []join
	Preloads             map[string][]interface{}
	Settings             sync.Map
	ConnPool             ConnPool

    /** createdBy */
    protected String createdBy;

    /** createdTime */
    protected Long createdTime;

    /** expiredTime */
    protected Long expiredTime;

    /** name */
    protected String name;

    /** parameter_name */
    protected String parameterName;

    /** permissions */
    protected String[] permissions;

    /** token */
    protected String token;

        });
    }

    @Override
    public int load() {
        final Map<String, Pair<Map<String, String>, List<Pair<Pattern, String>>>> relatedContentMap = new HashMap<>();
        getAvailableRelatedContentList().stream().forEach(entity -> {
            final String key = getHostKey(entity);
            Pair<Map<String, String>, List<Pair<Pattern, String>>> pair = relatedContentMap.get(key);
            if (pair == null) {

     *
     * @param message the message to display
     * @param defaultReply the default reply value
     * @return the string entered by the user
     * @throws PrompterException if an exception occurs
     */
    @Nonnull
    default String prompt(@Nullable String message, @Nullable String defaultReply) throws PrompterException {
        return prompt(message, null, defaultReply);
    }

    Type t = aTypeVariable();
    assertEquals(String.class, new TypeResolver().where(t, String.class).resolveType(t));
  }

  public <T> void testWhere_indirectMapping() {
    Type t1 = new TypeCapture<T>() {}.capture();
    Type t2 = aTypeVariable();
    assertEquals(
        String.class, new TypeResolver().where(t1, t2).where(t2, String.class).resolveType(t1));
  }

//	s := "config/iam/users/foo/config.json"
//	prefix := "config/iam/users/"
//	suffix := "config.json"
//	result is foo
func extractPathPrefixAndSuffix(s string, prefix string, suffix string) string {
	return pathClean(strings.TrimSuffix(strings.TrimPrefix(s, prefix), suffix))
}

// IAMEtcdStore implements IAMStorageAPI
type IAMEtcdStore struct {
	sync.RWMutex

	*iamCache

	usersSysType UsersSysType

	client *etcd.Client
}

func (ruleList FilterRuleList) isEmpty() bool {
	return len(ruleList.Rules) == 0
}

// Pattern - returns pattern using prefix and suffix values.
func (ruleList FilterRuleList) Pattern() string {
	var prefix string
	var suffix string

	for _, rule := range ruleList.Rules {
		switch rule.Name {
		case "prefix":
			prefix = rule.Value
		case "suffix":
			suffix = rule.Value
		}
	}