semantic-network
Version:
A utility library for manipulating a list of links that form a semantic interface to a network of resources.
171 lines • 9.01 kB
JavaScript
;
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Object.defineProperty(exports, "__esModule", { value: true });
exports.FieldLinksResolverUtil = void 0;
var semantic_link_1 = require("semantic-link");
var linkRelation_1 = require("../linkRelation");
var formUtil_1 = require("./formUtil");
var linkRelConvertUtil_1 = require("./linkRelConvertUtil");
var resourceMergeFactory_1 = require("../representation/resourceMergeFactory");
var anylogger_1 = __importDefault(require("anylogger"));
var log = (0, anylogger_1.default)('FieldLinksResolverUtil');
var FieldLinksResolverUtil = /** @class */ (function () {
function FieldLinksResolverUtil() {
}
/**
* On a resource, iterate through all the link relations that match the form items and resolve the reference
* to a value and attach onto the original resource.
*
* Note: while this treats a link rel as a uri-list, it doesn't current support multiple resolutions
*/
FieldLinksResolverUtil.resolveLinks = function (resource, form, options) {
return __awaiter(this, void 0, void 0, function () {
var defaultFields, linksToResolve, resourceResolver, linksToResolve_1, linksToResolve_1_1, rel, fieldName, formItem, fieldValue, e_1_1;
var e_1, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
if (!resource) {
log.warn('Document does not exist for form %s', semantic_link_1.LinkUtil.getUri(form, linkRelation_1.LinkRelation.Self));
return [2 /*return*/, undefined];
}
defaultFields = __assign({}, options).defaultFields;
linksToResolve = formUtil_1.FormUtil.linksToResolve(resource, form, defaultFields);
resourceResolver = __assign({}, options).resourceResolver;
_b.label = 1;
case 1:
_b.trys.push([1, 7, 8, 9]);
linksToResolve_1 = __values(linksToResolve), linksToResolve_1_1 = linksToResolve_1.next();
_b.label = 2;
case 2:
if (!!linksToResolve_1_1.done) return [3 /*break*/, 6];
rel = linksToResolve_1_1.value;
if (!(resourceResolver && rel)) return [3 /*break*/, 4];
// throw new Error('Resource resolver not implemented');
return [4 /*yield*/, resourceResolver(rel)(resource, options)];
case 3:
// throw new Error('Resource resolver not implemented');
_b.sent();
_b.label = 4;
case 4:
fieldName = linkRelConvertUtil_1.LinkRelConvertUtil.dashToCamel(rel);
formItem = formUtil_1.FormUtil.findByField(form, fieldName);
if (formItem) {
fieldValue = this.resolveFormItemToUri(resource, formItem, rel, options);
if (fieldValue) {
resource[fieldName] = fieldValue;
}
}
_b.label = 5;
case 5:
linksToResolve_1_1 = linksToResolve_1.next();
return [3 /*break*/, 2];
case 6: return [3 /*break*/, 9];
case 7:
e_1_1 = _b.sent();
e_1 = { error: e_1_1 };
return [3 /*break*/, 9];
case 8:
try {
if (linksToResolve_1_1 && !linksToResolve_1_1.done && (_a = linksToResolve_1.return)) _a.call(linksToResolve_1);
}
finally { if (e_1) throw e_1.error; }
return [7 /*endfinally*/];
case 9: return [2 /*return*/];
}
});
});
};
/**
* Filters all the links on the document based on the link relations and makes into a uri-list. However, based on the
* {@link FormItem.multiple} the uri-list may be a single (text) or multiple (array) return type.
*
* All uris are also resolved via optional {@link MergeOptions.resolver}
*
* Note: the {@link FormItem.multiple} overrides the single versus multiple and will pick the head of the array to
* return a single uri
*
* @param document
* @param formItem
* @param rel
* @param options?
* @returns the resolved {@link UriListValue}
*/
FieldLinksResolverUtil.resolveFormItemToUri = function (document, formItem, rel, options) {
var _a = __assign({}, options).resolver, resolver = _a === void 0 ? resourceMergeFactory_1.noopResolver : _a;
var links = semantic_link_1.LinkUtil.filter(document, rel);
var values = links.map(function (link) { return resolver.resolve(link.href); });
if (formItem.multiple) {
return values;
}
else { // single
if (values.length > 1) {
log.warn('More than one in array, returning first');
}
return values[0];
}
};
return FieldLinksResolverUtil;
}());
exports.FieldLinksResolverUtil = FieldLinksResolverUtil;
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