Unable to get an Observable List using Gluon Connect - Multiple Exceptions - rest

Question

I'm trying to populate multiple tables with JSON streaming data. News, Twitter and Forex Data.
I am trying to populate a list or table with REST data using Gluon Connect.
I've followed the documentation to the letter but i am not getting anywhere. From what i can see, REST client connects successfully, but is unable to return an Observable List.
I've followed the sample code from the documentation, I've included a piece of the sample code.
// create a RestClient to the specific URL
RestClient restClient = RestClient.create()
.method("GET")
.host("https://api.stackexchange.com")
.path("/2.2/errors");
// create a custom converter
InputStreamIterableInputConverter<Error> converter = new ItemsIterableInputConverter<>(Error.class);
// retrieve a list from the DataProvider using the custom converter
GluonObservableList<Error> errors = DataProvider.retrieveList(restClient.createListDataReader(converter));
//ItemsIterableInputConverter is not a valid command, Ive tried InterableInputConverter and JsonInputIterableConverter, non of which wo
//JSON Output Looks like this
{
"status": "ok",
"totalResults": 70,
-"articles": [
-{
-"source": {
"id": null,
"name": "Marketwatch.com"
},
"author": "Greg Robb",
"title": "Fed officials shied away ...",
"description": "Federal Reserve officials ...",
"url": "https://www.marketwatch.com/",
"urlToImage": "http://s.20190821101018.jpg",
"publishedAt": "2019-08-21T18:24:00Z",
"content": "President Trumps criticism of ...+2840 chars]"
},
My POJO:
Article.java
package app;
import lombok.Getter;
import lombok.Setter;
import org.apache.commons.lang3.builder.ToStringBuilder;
#Getter
#Setter
public class Article {
private Source source;
private String author;
private String title;
private String description;
private String url;
private String urlToImage;
private String publishedAt;
private String content;
/**
* No args constructor for use in serialization
*/
public Article() {
}
public Article(Source source, String author, String title, String description, String url, String urlToImage, String publishedAt, String content) {
super();
this.source = source;
this.author = author;
this.title = title;
this.description = description;
this.url = url;
this.urlToImage = urlToImage;
this.publishedAt = publishedAt;
this.content = content;
}
JavaFX - NewsController
#FXML
private ListView<Article> newsList;
// create a RestClient to the specific URL
RestClient restClient = RestClient.create()
.method("GET")
.host("https://newsapi.org")
.path("//v2/everything?q=GBP_USD&from=2019-08-21&to=2019-08-21&sortBy=popularity&apiKey=API_KEY");
InputStreamIterableInputConverter<Article> converter = new JsonIterableInputConverter<>(Article.class);
GluonObservableList<Article> articles = DataProvider.retrieveList(restClient.createListDataReader(converter));
articles.initializedProperty().addListener((obv,ov,nv)-> {
newsList.setItems(articles);
}
);
//Here I tried to use a TableView instead
// newsTbl.setItems(articles);
//
// newsDateCol.setCellValueFactory(new PropertyValueFactory<>("newsDateCol"));
// newsPublisherCol.setCellValueFactory(new PropertyValueFactory<>("newsPublisherCol"));
// newsHeadlineCol.setCellValueFactory(new PropertyValueFactory<>("newsHeadlineCol"));
// newsLinkCol.setCellValueFactory(new PropertyValueFactory<>("newsLinkCol"));
This is my output
Task :App.main()
Connection Successful
Exception in thread "DataProviderThread-0" java.lang.ExceptionInInitializerError
at com.gluonhq.connect.converter.JsonIterableInputConverter.iterator(JsonIterableInputConverter.java:136)
at com.gluonhq.connect.provider.RestListDataReader.iterator(RestListDataReader.java:80)
at com.gluonhq.connect.provider.DataProvider.lambda$retrieveList$23(DataProvider.java:206)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:835)
Caused by: javax.json.JsonException: Provider org.glassfish.json.JsonProviderImpl not found
at javax.json.spi.JsonProvider.provider(JsonProvider.java:75)
at javax.json.Json.createReaderFactory(Json.java:215)
at com.gluonhq.impl.connect.converter.JsonUtil.<clinit>(JsonUtil.java:48)
... 6 more
Caused by: java.lang.ClassNotFoundException: org.glassfish.json.JsonProviderImpl
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:332)
at javax.json.spi.JsonProvider.provider(JsonProvider.java:72)
... 8 more
Task :App.main() FAILED
Update :
My build.gradle file.
plugins {
id 'java'
id 'application'
id 'org.openjfx.javafxplugin' version '0.0.8'
}
version '1.0-SNAPSHOT'
sourceCompatibility = 12
repositories {
mavenCentral()
}
javafx {
version = "12.0.2"
modules =["javafx.controls","javafx.fxml"]
}
dependencies {
testCompile group: 'junit', name: 'junit', version: '4.12'
compile group: 'com.jfoenix', name: 'jfoenix', version: '9.0.2'
compile group: 'mysql', name: 'mysql-connector-java', version: '8.0.17'
compile group: 'org.twitter4j', name: 'twitter4j-core', version: '4.0.7'
compileOnly 'org.projectlombok:lombok:1.18.8'
annotationProcessor 'org.projectlombok:lombok:1.18.8'
compile group: 'com.gluonhq', name: 'connect', version: '2.0.1'
compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.0'
compile 'org.apache.httpcomponents:httpclient:4.5.9'
compile group: 'com.fasterxml', name: 'jackson-module-json-org', version: '0.9.1'
}
task Customrun(type: JavaExec, dependsOn: classes) {
mainClassName = 'app.App'
classpath = sourceSets.main.runtimeClasspath
}
I've taken Jose's advice and imported the 'org.glassfish', name: 'javax.json', version: '1.0.4', which cleared up the Error.
Table is still not populating, so i did a System.out.println on the ObservableList 'articles' and only receive empty brackets []. The default "no content in table" has disapeared which seems like it did work, only thing is i receive a empty list.
UPDATE :
Created a custom converter class ArticlesIterableInputConverter
// modified the Iterator Method
#Override
public Iterator<E> iterator() {
index = 0;
try (JsonReader reader = Json.createReader(getInputStream())) {
JsonObject jsonObject = reader.readObject();
jsonArray = jsonObject.getJsonArray("articles");
}
return this;
}
REST CLient Call and GluonObservable List Creation
// create a RestClient to the specific URL
RestClient restClient = RestClient.create()
.method("GET")
.host("https://newsapi.org")
.path("//v2/everything?q=GBP_USD&from=2019-08-21&to=2019-08-21&sortBy=popularity&apiKey=9a7a9daab76f440fb796350c83db0694");
InputStreamIterableInputConverter<Article> converter = new ArticlesIterableInputConverter<>(Article.class);
GluonObservableList<Article> articles = DataProvider.retrieveList(restClient.createListDataReader(converter));
articles.initializedProperty().addListener((obv,ov,nv)-> {
newsList.setItems(articles);
}
);
Screenshot of List Output
*** Need to figure out how to format the output into the fields I actually need.
Added a toString Method to the Article Class
#Override
public String toString() {
return new ToStringBuilder(this).append("publishedAt", publishedAt).append("name", source.name).append("title", title).append("url", url).toString();
}
New Output :
Output after adding toString Method