Async Development - Task Chain - Java Control Flow for Bukkit

Async Development – Task Chain – Java Control Flow for Bukkit

July 26, 2015 in Bukkit, Java, Programming

Reposting because Google has bugged out and ended up dropping this from Google :/ So making it look new to get it back on Google.

So as any Bukkit developer knows, the API is not thread safe! And to make matters worse, there is no concrete Java Control Flow API in Bukkit.

However at Empire Minecraft our server very heavily depends on our MySQL Database to provide features. So running database queries on the main thread is common but undesired, and Java control flow is needed.

Running queries async creates complicated java control flow issues, need to run this query… now need to access the bukkit api, so return to Sync processing, oh wait, now I need to act again with another database query!

Easy to avoid all that java control flow trouble by running everything sync – but then performance can be hurt.

Node.JS / JavaScript has this problem in great detail, and turns code into call back hell, so there are plenty of Flow Control libraries out there like Q, Async, Chainsaw and more.

Therefor, to avoid Java running into this same callback mess, I wrote an elegant Java Flow Control system on top of the Bukkit Scheduler.

Feel free to use however you need! (Licensed under MIT)

TaskChain – Bukkit Java Control Flow

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<html>
  <head>
    <meta http-equiv="Content-type" content="text/html; charset=utf-8">
    <title>Server Error &middot; Gist</title>
    <style type="text/css" media="screen">
      body {
        background: #f1f1f1;
        font-family: "HelveticaNeue-Light", Helvetica, Arial, sans-serif;
        text-rendering: optimizeLegibility;
        -webkit-font-smoothing: antialiased; }

      .container { margin: 100px auto; width: 600px; text-align: center; }

      a { color: #4183c4; text-decoration: none; }
      a:visited { color: #4183c4 }
      a:hover { text-decoration: none; }

      h1 { letter-spacing: -1px; line-height: 60px; font-size: 60px; font-weight: 100; margin: 0px; text-shadow: 0 1px 0 #fff; }
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      li { display: table-cell; font-weight: bold; width: 1%; }
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    <div class="container">
      <h1>OH NOES, 404.</h1>
      <p>We seem to have missed the <em>gist</em> of that <em>gist</em> you were looking for.</p>
      <ul id="error-suggestions">
          <li><a href="https://github.com/contact">Contact Support</a></li>
          <li><a href="https://status.github.com">Status Site</a></li>
          <li><a href="https://twitter.com/github">@github</a></li>
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      <p><img src="https://github.s3.amazonaws.com/media/maint-logo.png" alt="GitHub"></p>
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Daniel Ennis (Aikar)

I am very passionate about development, and communities. I am now living my dream of running my own gaming company, as I have now founded Starlis LLC and operate the Empire Minecraft service, the place where I met my lovely wife Mia!

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