J-WatchList/src/main/network/StockJson.java

package network;

import javax.json.Json;
import javax.json.JsonObject;
import javax.json.JsonReader;
import javax.json.JsonNumber;
import java.io.InputStream;
import java.io.IOException;

//Json library from https://docs.oracle.com/javaee/7/api/javax/json/Json.html
public class StockJson {
    public static JsonObject inputStreamToJson(InputStream istream) {
        JsonReader jreader = Json.createReader(istream);
        JsonObject jobj = jreader.readObject();
        jreader.close();
        return jobj;
    }

    public static JsonObject urlToJson(String url) throws IOException {
        try {
            return inputStreamToJson(Net.urlToInputStream(url));
        } catch (IOException e) {
            throw e;
        }
    }

    public static double doubleGetter(JsonObject jobj, String name) {
        return jobj.getJsonNumber(name).doubleValue();
    }

    public static JsonObject jsonInJson(JsonObject jobj, String name) {
        return jobj.getJsonObject(name);
    }

    public static String stringGetter(JsonObject jobj, String name) {
        return jobj.getString(name);
    }

    public static double doublePercent(JsonObject jobj, String name) {
        String temp = stringGetter(jobj, name);
        return Double.parseDouble(temp.split("%")[0]);
    }
}