openaire-library/sharedComponents/schema2jsonld/service/jsonld-document-serializer....

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import { Injectable } from "@angular/core";
import { JsonldDocument, Identifier, Person, License, Citation, Dataset, Organization } from "../model/jsonld-document";
import * as _ from "lodash";
@Injectable()
export class JsonldDocumentSerializerService {
constructor() { }
serializeOrganization(doc: Organization): any {
const buffer = {};
buffer["@type"] = "Organization";
this.serializeDocument(doc, buffer);
if(doc.areaServed){
buffer["areaServed"] = doc.areaServed;
}
if(doc.legalName){
buffer["legalName"] = doc.legalName;
}
if(doc.funder ){
buffer["funder"] = this.serializeOrganization(doc.funder );
}
return buffer;
}
serializeDocument(doc:JsonldDocument, buffer):any{
buffer["@context"] = "http://schema.org";
buffer["@id"] = doc.id;
this.serializeName(doc, buffer);
this.serializeDescription(doc, buffer);
this.serializeIdentifier(doc, buffer);
this.serializeURL(doc, buffer);
this.serializeSameAs(doc, buffer);
}
serializeDataset(doc: Dataset): any {
var buffer = {};
buffer["@context"] = "http://schema.org";
buffer["@type"] = "Dataset";
this.serializeDocument(doc, buffer);
if(doc.headline){
buffer["headline"] = doc.headline;
}
if(doc.alternativeHeadline){
buffer["alternativeHeadline"] = doc.alternativeHeadline;
}
if(doc.issn){
buffer["issn"] = doc.issn;
}
if (doc.creator && doc.creator.length == 1) {
buffer["creator"] = this.buildCreator(doc.creator[0]);
}
else if (doc.creator && doc.creator.length > 1) {
const array = new Array<any>();
for (var i = 0; i < doc.creator.length; i += 1) {
array.push(this.buildCreator(doc.creator[i]));
}
buffer["creator"] = array;
}
if (doc.dateCreated && doc.dateCreated.length == 1) {
buffer["dateCreated"] = doc.dateCreated[0];
}
else if (doc.dateCreated && doc.dateCreated.length > 1) {
buffer["dateCreated"] = doc.dateCreated;
}
if (doc.dateModified && doc.dateModified.length == 1) {
buffer["dateModified"] = doc.dateModified[0];
}
else if (doc.dateModified && doc.dateModified.length > 1) {
buffer["dateModified"] = doc.dateModified;
}
if (doc.license && doc.license.length == 1) {
buffer["license"] = this.buildLicense(doc.license[0]);
}
else if (doc.license && doc.license.length > 1) {
const array = new Array<any>();
for (var i = 0; i < doc.license.length; i += 1) {
array.push(this.buildLicense(doc.license[i]));
}
buffer["license"] = array;
}
if (doc.keyword && doc.keyword.length == 1) {
buffer["keywords"] = doc.keyword[0];
}
else if (doc.keyword && doc.keyword.length > 1) {
buffer["keywords"] = _.join(doc.keyword, ", ");
}
if(doc.isPartOf && doc.isPartOf.length > 0){
buffer["isPartOf"] = doc.isPartOf;
}
if (doc.citation && doc.citation.length == 1) {
buffer["citation"] = this.buildCitation(doc.citation[0]);
}
else if (doc.citation && doc.citation.length > 1) {
const array = new Array<any>();
for (var i = 0; i < doc.citation.length; i += 1) {
array.push(this.buildCitation(doc.citation[i]));
}
buffer["citation"] = array;
}
return buffer;
// return JSON.stringify(buffer, (key, value) => {
// if (value !== null) return value
// }, 4);
}
serializeName(doc, buffer){
if (doc.title && doc.title.length == 1) {
buffer["name"] = doc.title[0];
}
else if (doc.title && doc.title.length > 1) {
buffer["name"] = doc.title;
}
}
serializeDescription(doc, buffer){
if(doc.description) {
buffer["description"] = doc.description;
}
}
serializeIdentifier(doc, buffer){
if (doc.identifier && doc.identifier.length == 1) {
buffer["identifier"] = this.buildIdentifier(doc.identifier[0]);
}
else if (doc.identifier && doc.identifier.length > 1) {
const array = new Array<any>();
for (var i = 0; i < doc.identifier.length; i += 1) {
array.push(this.buildIdentifier(doc.identifier[i]));
}
buffer["identifier"] = array;
}
}
serializeURL(doc, buffer){
if (doc.url && doc.url.length == 1) {
buffer["URL"] = doc.url[0];
}
else if (doc.url && doc.url.length > 1) {
buffer["URL"] = doc.url;
}
}
serializeSameAs(doc, buffer){
if (doc.sameAs && doc.sameAs.length == 1) {
buffer["sameAs"] = doc.sameAs[0];
}
else if (doc.sameAs && doc.sameAs.length > 1) {
buffer["sameAs"] = doc.sameAs;
}
}
buildIdentifier(item: Identifier): any {
return {
"@type": "PropertyValue",
"propertyID": item.schema,
"value": item.id
};
}
buildCreator(item: Person): any {
var person ={};
person["@type"] = "Person";
if(item.givenName){
person["givenName"] = item.givenName;
}
if(item.familyName){
person["familyName"] = item.familyName;
}
person["name"] = item.name;
return person;
// return {
// "@type": "Person",
// "givenName": item.givenName,
// "familyName": item.familyName,
// "name": item.name
// };
}
buildLicense(item: License): any {
const licenseBuffer = {
"@type": "CreativeWork"
};
if (item.title && item.title.length == 1) {
licenseBuffer["name"] = item.title[0];
}
else if (item.title && item.title.length > 1) {
licenseBuffer["name"] = item.title;
}
if (item.identifier && item.identifier.length == 1) {
licenseBuffer["identifier"] = this.buildIdentifier(item.identifier[0]);
}
else if (item.identifier && item.identifier.length > 1) {
const array = new Array<any>();
for (var i = 0; i < item.identifier.length; i += 1) {
array.push(this.buildIdentifier(item.identifier[i]));
}
licenseBuffer["identifier"] = array;
}
return licenseBuffer;
}
buildCitation(item: Citation): any {
const citationBuffer = {
"@type": "CreativeWork"
};
if (item.title && item.title.length == 1) {
citationBuffer["name"] = item.title[0];
}
else if (item.title && item.title.length > 1) {
citationBuffer["name"] = item.title;
}
if (item.identifier && item.identifier.length == 1) {
citationBuffer["identifier"] = this.buildIdentifier(item.identifier[0]);
}
else if (item.identifier && item.identifier.length > 1) {
const array = new Array<any>();
for (var i = 0; i < item.identifier.length; i += 1) {
array.push(this.buildIdentifier(item.identifier[i]));
}
citationBuffer["identifier"] = array;
}
return citationBuffer;
}
}