function getIcon()

in ui-modules/utils/icon-generator/icon-generator.js [135:194]
58 lines of code
18 McCabe index (conditional complexity)

    function getIcon(entityOrTypeId, doNotAutogenerate) {
        let deferred = $q.defer();

        let id;
        if (typeof entityOrTypeId === 'string') {
            id = entityOrTypeId;
        } else if (typeof entityOrTypeId === 'object') {
            if (entityOrTypeId.iconUrl) {
                deferred.resolve(entityOrTypeId.iconUrl);
                return deferred.promise;
            }
            if (entityOrTypeId.links && entityOrTypeId.links.iconUrl) {
                deferred.resolve(entityOrTypeId.links.iconUrl);
                return deferred.promise;
            }
            if (entityOrTypeId.catalogItemId) {
                id = entityOrTypeId.catalogItemId;
            } else if (entityOrTypeId.symbolicName) {
                id = entityOrTypeId.symbolicName;
            } else if (entityOrTypeId.type) {
                let entity = entityOrTypeId;
                id = entity.type;
                if (id === 'org.apache.brooklyn.entity.stock.BasicApplication' && entity.children && entity.children.length === 1) {
                    id = entity.children[0].catalogItemId || entity.children[0].type;
                }
            }
        }
        
        let icon;
        if (angular.isDefined(id)) {
            icon = cache.get(id);
        } else {
            $log.warn('No ID found for item, cannot make icon - '+entityOrTypeId, entityOrTypeId);
            deferred.reject('No ID found for item, cannot make icon - '+entityOrTypeId);
            return deferred.promise;
        }
        if (angular.isUndefined(icon)) {
            let path = id.split(':');
            $http({
                method: 'GET',
                cache: true,
                url: '/v1/catalog/entities/' + path[0] + '/' + (path[1] || 'latest')
            }).then((response)=> {
                if (response.data.hasOwnProperty('iconUrl')) {
                    icon = response.data.iconUrl;
                    cache.put(id, icon);
                } else if (doNotAutogenerate) {
                    icon = null;
                } else {
                    icon = iconGenerator(id);
                }
                deferred.resolve(icon)
            }, ()=> {
                deferred.resolve(iconGenerator(id));
            });
        } else {
            deferred.resolve(icon);
        }
        return deferred.promise;
    }