GE Data (get price etc. by item name) no external libraries required

[Botre]

If I set references to the table with all of the data to null after pulling the information from it, will it free all allocated memory?

 

map.clear()

 

please.

[Redfr3sh]

how often is this updated every 15 minutes?

[Redfr3sh]

How do you change for average buy and average sell

soz double post

Edited August 31, 2016 by RedFr3sh

[Explv]

How do you change for average buy and average sell

soz double post

 

The data is retrieved in the format:

{"overall":369,"buying":372,"buyingQuantity":108551,"selling":367,"sellingQuantity":121543}

Using a URL such as: http://api.rsbuddy.com/grandExchange?a=guidePrice&i=1515

 

 

The following method retrieves the "overall" value:

private Optional<Integer> getRSBuddyPrice(){
    try {
        URL url = new URL("http://api.rsbuddy.com/grandExchange?a=guidePrice&i=" + id);
        URLConnection con = url.openConnection();
        con.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36");
        con.setUseCaches(true);
        BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String json = br.readLine();
        br.close();
        Matcher matcher = Pattern.compile("\"overall\"\\s*:\\s*(\\d*)").matcher(json);
        return matcher.find() ? Optional.of(Integer.parseInt(matcher.group(1))) : Optional.empty();
    } catch(Exception e){
        e.printStackTrace();
    }
    return Optional.empty();
}

If you wanted to retrieve all of these data items, you can just alter this method to instead return a Map<String, Integer>, and instead of just doing:

Matcher matcher = Pattern.compile("\"overall\"\\s*:\\s*(\\d*)").matcher(json);
return matcher.find() ? Optional.of(Integer.parseInt(matcher.group(1))) : Optional.empty();

Which gets the "overall" value, you can do this for "buying", "selling" etc. and add it to the Map.

 

I will write this up when I get home if you aren't sure how to do it.

[Redfr3sh]

can you write it up please bro if you could

do i need two different matches

[jython]

These snippets are wonderful. I was just getting around to writing a fighter and needed to write in my loot calculator. Thanks so much for sharing this.

[progamerz]

sigh perhaps you should read up on the Java Garbage Collector then.

 

If you are really concerned about memory usage, then perhaps you should use a profiler to see how much memory, and where the memory is being used.

 

It isn't really a concern though. It's just a Map containing a few objects..

How can i get only price?

[Juggles]

Great snippet

[Butters]

Any idea why this worked perfectly for me for a couple of first times and started not to find the items I'm looking for? Even tried by replacing the getRSBuddyPrice() method with getOSRScurrentPrice().

[Explv]

Any idea why this worked perfectly for me for a couple of first times and started not to find the items I'm looking for? Even tried by replacing the getRSBuddyPrice() method with getOSRScurrentPrice().

 

I noticed there was a slight error in one of the regex patterns, it may have been causing issues for you. I have fixed it in the original post.

[Trivial]

How can i get only price?

Map<String, ExchangeItem> exchangeItems = new RSExchange().getExchangeItems("Your item");
exchangeItems.get("Your item").getPrice();

[progamerz]

Map<String, ExchangeItem> exchangeItems = new RSExchange().getExchangeItems("Your item");
exchangeItems.get("Your item").getPrice();

i got it working long time ago, but anyways thanks.

[S3R0]

If I may ask, is there a reason why java.util.Optional is unresolveable? Maybe it's just me?

[Explv]

If I may ask, is there a reason why java.util.Optional is unresolveable? Maybe it's just me?

 

Make sure the language level of your IDE is set to Java 8, because Optionals were a new feature introduced in Java 8.

[S3R0]

Make sure the language level of your IDE is set to Java 8, because Optionals were a new feature introduced in Java 8.

 

Aha, that explains that then. I was still using 1.7.0. Thanks!