85 lines
2.4 KiB
Java
85 lines
2.4 KiB
Java
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package Classes.api;
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import java.text.ParseException;
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import java.util.ArrayList;
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import java.util.Date;
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import org.json.JSONArray;
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import org.json.JSONObject;
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import Classes.Event;
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import Interfaces.Callback;
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import model.NewsListModel;
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import model.NewsModel;
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public class fetchArticles implements Callback{
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private NewsListModel context;
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private String nextQuery;
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public fetchArticles(NewsListModel context, String nextQuery){
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this.context = context;
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this.nextQuery = nextQuery;
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}
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@Override
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public void onSuccess(JSONObject response){
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/* (1) Création des NewsModel depuis le json
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---------------------------------------------------------*/
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/* (1) Init. news list */
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ArrayList<NewsModel> newsArr = new ArrayList<NewsModel>();
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/* (2) Get article list */
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JSONArray article_list = response.getJSONArray("articles");
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/* (3) For each article -> create corresponding NewsModel */
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for( int i = 0, il = article_list.length() ; i < il ; i++ ){
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// {3.1} Get local copy of the JSON //
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JSONObject news_i = (JSONObject) article_list.get(i);
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// {3.2} Create new NewsModel //
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NewsModel news = new NewsModel();
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// {3.3} Set attributes //
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news.setAuthor( news_i.getString("author") )
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.setDescription( news_i.getString("description") )
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.setTitle( news_i.getString("title") )
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.setNewsURL( news_i.getString("url") )
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.setImageURL( news_i.getString("urlToImage") )
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.setSource( news_i.getJSONObject("source").getString("name") )
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.addTag( this.context.getCategory() );
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// {3.4} Add the date (can throw Ex) //
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try { news.setDate(news_i.getString("publishedAt")); }
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catch( ParseException e ){ news.setDate(new Date()); }
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// {3.5} Add to the set //
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newsArr.add(news);
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}
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/* (4) Apply to Context */
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this.context.setNews( newsArr );
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this.context.setQuery( this.nextQuery );
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/* (5) Remove observers */
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this.context.removeObserver("newsApiCall");
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this.context.notifyObservers(new Event("NewsModel","NewsQuerySuccess"));
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}
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@Override
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public void onError(String errDesc) {
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System.out.println("Error: "+errDesc);
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this.context.removeObserver("newsApiCall");
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this.context.notifyObservers(new Event("NewsModel","NewsQueryFailed"));
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}
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}
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