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SXForce

"Grand Exchange" script

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For script writers. I made this for myself. It gets the current price in Zybez for a given item.

public class Exchange {

    private final String BASE_URL = "http://forums.zybez.net/runescape-2007-prices/api/";

    public double getPrice(String itemName) {
        String json = getJSON(BASE_URL + getFormattedStringForUrl(itemName));
        return getPriceFromJson(json);
    }

    private String getFormattedStringForUrl(String string) {
        while(string.contains(" ")) {
            string = string.replace(" ", "+");
        }
        return string;
    }

    private double getPriceFromJson(String json) {
        int startPosition = json.indexOf("average\":\"") + "average\":\"".length();
        int endPosition = json.indexOf("\",\"", startPosition);
        return Double.parseDouble(json.substring(startPosition, endPosition));
    }

    private String getJSON(String url) {
        try {
            URL u = new URL(url);
            HttpURLConnection c = (HttpURLConnection) u.openConnection();
            c.setRequestMethod("GET");
            c.setRequestProperty("Content-length", "0");
            c.setUseCaches(false);
            c.setAllowUserInteraction(false);
            c.setConnectTimeout(3000);
            c.setReadTimeout(3000);
            c.connect();
            int status = c.getResponseCode();

            switch (status) {
                case 200:
                case 201:
                    BufferedReader br = new BufferedReader(new InputStreamReader(c.getInputStream()));
                    StringBuilder sb = new StringBuilder();
                    String line;
                    while ((line = br.readLine()) != null) {
                        sb.append(line+"\n");
                    }
                    br.close();
                    return sb.toString();
            }

        } catch (MalformedURLException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return null;
    }
}

Usage

Paste this file in your script as INNER CLASS. Like:

public class SXSomeScript extends Script {

    @Override
    public void onStart() {
        // Your things here
    }

    @Override
    public int onLoop() {
        // Your things here
    }

    // Copy above class, this is just an example.
    public class Exchange {
        ...
    }
}

Then use it as follows in your class.

Note: Use the onStart() to get the prices, not the onLoop()!

Exchange exchange = new Exchange();
exchange.getPrice("dragon chainbody"); // Returns 13735000.0 (a double)
Edited by SXForce
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