for eventName, rules := range rulesMap {
		if nr := rules.Difference(rulesMap2[eventName]); len(nr) != 0 {
			rulesMap[eventName] = nr
		} else {
			delete(rulesMap, eventName)
		}
	}
}

// MatchSimple - returns true if matching object name and event name in rules map.
func (rulesMap RulesMap) MatchSimple(eventName Name, objectName string) bool {
	return rulesMap[eventName].MatchSimple(objectName)
}

	}

	pattern := event.NewPattern(prefix, suffix)

	var eventNames []event.Name
	var mask pubsub.Mask
	for _, s := range values[peerRESTListenEvents] {
		eventName, err := event.ParseName(s)
		if err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
		mask.MergeMaskable(eventName)
		eventNames = append(eventNames, eventName)
	}

	if bucketName != "" {

	}, "*", TargetID{"1", "webhook"})

	rulesMapCase3 := make(RulesMap)
	rulesMapCase3.add([]Name{ObjectRemovedDelete}, "2010*.jpg", TargetID{"1", "webhook"})

	testCases := []struct {
		eventNames     []Name
		pattern        string
		targetID       TargetID
		expectedResult RulesMap
	}{
		{[]Name{ObjectAccessedAll}, "", TargetID{"1", "webhook"}, rulesMapCase1},

	pattern := event.NewPattern(prefix, suffix)

	var eventNames []event.Name
	var mask pubsub.Mask
	for _, ev := range values[peerRESTListenEvents] {
		eventName, err := event.ParseName(ev)
		if err != nil {
			return grid.NewRemoteErr(err)
		}
		mask.MergeMaskable(eventName)
		eventNames = append(eventNames, eventName)
	}

	rulesMap := event.NewRulesMap(eventNames, pattern, event.TargetID{ID: mustGetUUID()})

	EventSource       string            `json:"eventSource"`
	AwsRegion         string            `json:"awsRegion"`
	EventTime         string            `json:"eventTime"`
	EventName         Name              `json:"eventName"`
	UserIdentity      Identity          `json:"userIdentity"`
	RequestParameters map[string]string `json:"requestParameters"`
	ResponseElements  map[string]string `json:"responseElements"`

			},
		},
		Source: event.Source{
			Host:      args.Host,
			UserAgent: args.UserAgent,
		},
	}

	isRemovedEvent := args.EventName == event.ObjectRemovedDelete ||
		args.EventName == event.ObjectRemovedDeleteMarkerCreated ||
		args.EventName == event.ObjectRemovedNoOP

	if !isRemovedEvent {
		newEvent.S3.Object.ETag = args.Object.ETag
		newEvent.S3.Object.Size = args.Object.Size

                logger.warn("Failed to publish event: eventName={}, status={}", eventName, response.getHttpStatusCode());
            }
        } catch (final Exception e) {
            logger.warn("Failed to publish event: eventName={}", eventName, e);
        }
    }

    /**
     * Registers an event handler for the specified event name.
     *
     * @param eventName the event name to handle.

func (name *Name) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	var s string
	if err := d.DecodeElement(&s, &start); err != nil {
		return err
	}

	eventName, err := ParseName(s)
	if err != nil {
		return err
	}

	*name = eventName
	return nil
}

// MarshalJSON - encodes to JSON data.
func (name Name) MarshalJSON() ([]byte, error) {
	return json.Marshal(name.String())
}

		return errors.New("missing event name(s)")
	}

	eventStringSet := set.NewStringSet()
	for _, eventName := range parsedQueue.Events {
		if eventStringSet.Contains(eventName.String()) {
			return &ErrDuplicateEventName{eventName}
		}

		eventStringSet.Add(eventName.String())
	}

	*q = Queue(parsedQueue)

	return nil
}

}

// ErrDuplicateEventName - duplicate event name error.
type ErrDuplicateEventName struct {
	EventName Name
}

func (err ErrDuplicateEventName) Error() string {
	return fmt.Sprintf("duplicate event name '%v' found", err.EventName)
}

// ErrUnsupportedConfiguration - unsupported configuration error.
type ErrUnsupportedConfiguration struct{}