222 lines
14 KiB
HTML
222 lines
14 KiB
HTML
<!DOCTYPE HTML>
|
|
<html lang="en">
|
|
<head>
|
|
<!-- Generated by javadoc (21) on Tue May 12 14:36:52 UTC 2026 -->
|
|
<title>TokenBucketStrategy (flash-parent 2.1.0-SNAPSHOT API)</title>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
|
<meta name="dc.created" content="2026-05-12">
|
|
<meta name="description" content="declaration: package: dev.relism.flash.ext.limiter.strategy, class: TokenBucketStrategy">
|
|
<meta name="generator" content="javadoc/ClassWriterImpl">
|
|
<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
|
|
<link rel="stylesheet" type="text/css" href="../../../../../../script-dir/jquery-ui.min.css" title="Style">
|
|
<script type="text/javascript" src="../../../../../../script.js"></script>
|
|
<script type="text/javascript" src="../../../../../../script-dir/jquery-3.7.1.min.js"></script>
|
|
<script type="text/javascript" src="../../../../../../script-dir/jquery-ui.min.js"></script>
|
|
</head>
|
|
<body class="class-declaration-page">
|
|
<script type="text/javascript">var pathtoroot = "../../../../../../";
|
|
loadScripts(document, 'script');</script>
|
|
<noscript>
|
|
<div>JavaScript is disabled on your browser.</div>
|
|
</noscript>
|
|
<div class="flex-box">
|
|
<header role="banner" class="flex-header">
|
|
<nav role="navigation">
|
|
<!-- ========= START OF TOP NAVBAR ======= -->
|
|
<div class="top-nav" id="navbar-top"><button id="navbar-toggle-button" aria-controls="navbar-top" aria-expanded="false" aria-label="Toggle navigation links"><span class="nav-bar-toggle-icon"> </span><span class="nav-bar-toggle-icon"> </span><span class="nav-bar-toggle-icon"> </span></button>
|
|
<div class="skip-nav"><a href="#skip-navbar-top" title="Skip navigation links">Skip navigation links</a></div>
|
|
<ul id="navbar-top-firstrow" class="nav-list" title="Navigation">
|
|
<li><a href="../../../../../../index.html">Overview</a></li>
|
|
<li><a href="package-summary.html">Package</a></li>
|
|
<li class="nav-bar-cell1-rev">Class</li>
|
|
<li><a href="class-use/TokenBucketStrategy.html">Use</a></li>
|
|
<li><a href="package-tree.html">Tree</a></li>
|
|
<li><a href="../../../../../../index-all.html">Index</a></li>
|
|
<li><a href="../../../../../../help-doc.html#class">Help</a></li>
|
|
</ul>
|
|
<ul class="sub-nav-list-small">
|
|
<li>
|
|
<p>Summary:</p>
|
|
<ul>
|
|
<li>Nested</li>
|
|
<li>Field</li>
|
|
<li><a href="#constructor-summary">Constr</a></li>
|
|
<li><a href="#method-summary">Method</a></li>
|
|
</ul>
|
|
</li>
|
|
<li>
|
|
<p>Detail:</p>
|
|
<ul>
|
|
<li>Field</li>
|
|
<li><a href="#constructor-detail">Constr</a></li>
|
|
<li><a href="#method-detail">Method</a></li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
<div class="sub-nav">
|
|
<div id="navbar-sub-list">
|
|
<ul class="sub-nav-list">
|
|
<li>Summary: </li>
|
|
<li>Nested | </li>
|
|
<li>Field | </li>
|
|
<li><a href="#constructor-summary">Constr</a> | </li>
|
|
<li><a href="#method-summary">Method</a></li>
|
|
</ul>
|
|
<ul class="sub-nav-list">
|
|
<li>Detail: </li>
|
|
<li>Field | </li>
|
|
<li><a href="#constructor-detail">Constr</a> | </li>
|
|
<li><a href="#method-detail">Method</a></li>
|
|
</ul>
|
|
</div>
|
|
<div class="nav-list-search"><a href="../../../../../../search.html">SEARCH</a>
|
|
<input type="text" id="search-input" disabled placeholder="Search">
|
|
<input type="reset" id="reset-button" disabled value="reset">
|
|
</div>
|
|
</div>
|
|
<!-- ========= END OF TOP NAVBAR ========= -->
|
|
<span class="skip-nav" id="skip-navbar-top"></span></nav>
|
|
</header>
|
|
<div class="flex-content">
|
|
<main role="main">
|
|
<!-- ======== START OF CLASS DATA ======== -->
|
|
<div class="header">
|
|
<div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">dev.relism.flash.ext.limiter.strategy</a></div>
|
|
<h1 title="Class TokenBucketStrategy" class="title">Class TokenBucketStrategy</h1>
|
|
</div>
|
|
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
|
|
<div class="inheritance">dev.relism.flash.ext.limiter.strategy.TokenBucketStrategy</div>
|
|
</div>
|
|
<section class="class-description" id="class-description">
|
|
<dl class="notes">
|
|
<dt>All Implemented Interfaces:</dt>
|
|
<dd><code><a href="../RateLimitStrategy.html" title="interface in dev.relism.flash.ext.limiter">RateLimitStrategy</a></code></dd>
|
|
</dl>
|
|
<hr>
|
|
<div class="type-signature"><span class="modifiers">public final class </span><span class="element-name type-name-label">TokenBucketStrategy</span>
|
|
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
|
|
implements <a href="../RateLimitStrategy.html" title="interface in dev.relism.flash.ext.limiter">RateLimitStrategy</a></span></div>
|
|
<div class="block">Token-bucket rate limit: tokens refill continuously at a rate of
|
|
<code>limit / windowMs</code> tokens per millisecond, up to a maximum of <code>limit</code> tokens.
|
|
Each request consumes one token. Burst traffic is absorbed until the bucket empties.
|
|
|
|
<h3 id="implementation-heading">Implementation</h3>
|
|
<ul>
|
|
<li><a href="../Bucket.html#slot0"><code>Bucket.slot0</code></a> — current token count scaled by 1000L
|
|
(allows sub-token precision without floating-point). Starts at 0; treated as
|
|
<code>maxScaled</code> when <a href="../Bucket.html#slot1"><code>Bucket.slot1</code></a> is 0 (first call → bucket starts full).</li>
|
|
<li><a href="../Bucket.html#slot1"><code>Bucket.slot1</code></a> — last-refill timestamp in ms. 0 = not yet initialised.</li>
|
|
</ul>
|
|
|
|
<p>Each request CAS-loops on <code>slot0</code>; <code>slot1</code> is advanced monotonically via CAS
|
|
after a successful token consumption — never regresses to an older timestamp under concurrent load.</div>
|
|
</section>
|
|
<section class="summary">
|
|
<ul class="summary-list">
|
|
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
|
|
<li>
|
|
<section class="constructor-summary" id="constructor-summary">
|
|
<h2>Constructor Summary</h2>
|
|
<div class="caption"><span>Constructors</span></div>
|
|
<div class="summary-table two-column-summary">
|
|
<div class="table-header col-first">Constructor</div>
|
|
<div class="table-header col-last">Description</div>
|
|
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">TokenBucketStrategy</a>()</code></div>
|
|
<div class="col-last even-row-color"> </div>
|
|
</div>
|
|
</section>
|
|
</li>
|
|
<!-- ========== METHOD SUMMARY =========== -->
|
|
<li>
|
|
<section class="method-summary" id="method-summary">
|
|
<h2>Method Summary</h2>
|
|
<div id="method-summary-table">
|
|
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
|
|
<div id="method-summary-table.tabpanel" role="tabpanel" aria-labelledby="method-summary-table-tab0">
|
|
<div class="summary-table three-column-summary">
|
|
<div class="table-header col-first">Modifier and Type</div>
|
|
<div class="table-header col-second">Method</div>
|
|
<div class="table-header col-last">Description</div>
|
|
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div>
|
|
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#check(dev.relism.flash.ext.limiter.Bucket,dev.relism.flash.ext.limiter.LimitConfig,long%5B%5D)" class="member-name-link">check</a><wbr>(<a href="../Bucket.html" title="class in dev.relism.flash.ext.limiter">Bucket</a> bucket,
|
|
<a href="../LimitConfig.html" title="class in dev.relism.flash.ext.limiter">LimitConfig</a> cfg,
|
|
long[] out)</code></div>
|
|
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
|
|
<div class="block">Checks whether this request is within the limit and updates the bucket atomically.</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="inherited-list">
|
|
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
|
|
<code><a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
|
|
</section>
|
|
</li>
|
|
</ul>
|
|
</section>
|
|
<section class="details">
|
|
<ul class="details-list">
|
|
<!-- ========= CONSTRUCTOR DETAIL ======== -->
|
|
<li>
|
|
<section class="constructor-details" id="constructor-detail">
|
|
<h2>Constructor Details</h2>
|
|
<ul class="member-list">
|
|
<li>
|
|
<section class="detail" id="<init>()">
|
|
<h3>TokenBucketStrategy</h3>
|
|
<div class="member-signature"><span class="modifiers">public</span> <span class="element-name">TokenBucketStrategy</span>()</div>
|
|
</section>
|
|
</li>
|
|
</ul>
|
|
</section>
|
|
</li>
|
|
<!-- ============ METHOD DETAIL ========== -->
|
|
<li>
|
|
<section class="method-details" id="method-detail">
|
|
<h2>Method Details</h2>
|
|
<ul class="member-list">
|
|
<li>
|
|
<section class="detail" id="check(dev.relism.flash.ext.limiter.Bucket,dev.relism.flash.ext.limiter.LimitConfig,long[])">
|
|
<h3>check</h3>
|
|
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">boolean</span> <span class="element-name">check</span><wbr><span class="parameters">(<a href="../Bucket.html" title="class in dev.relism.flash.ext.limiter">Bucket</a> bucket,
|
|
<a href="../LimitConfig.html" title="class in dev.relism.flash.ext.limiter">LimitConfig</a> cfg,
|
|
long[] out)</span></div>
|
|
<div class="block"><span class="description-from-type-label">Description copied from interface: <code><a href="../RateLimitStrategy.html#check(dev.relism.flash.ext.limiter.Bucket,dev.relism.flash.ext.limiter.LimitConfig,long%5B%5D)">RateLimitStrategy</a></code></span></div>
|
|
<div class="block">Checks whether this request is within the limit and updates the bucket atomically.
|
|
|
|
<p>On return, <code>out</code> contains:
|
|
<ul>
|
|
<li><code>out[0]</code> — remaining allowed requests in the current window (≥ 0).</li>
|
|
<li><code>out[1]</code> — Unix epoch seconds at which the quota resets (for <code>X-RateLimit-Reset</code>
|
|
and <code>Retry-After</code> headers).</li>
|
|
</ul></div>
|
|
<dl class="notes">
|
|
<dt>Specified by:</dt>
|
|
<dd><code><a href="../RateLimitStrategy.html#check(dev.relism.flash.ext.limiter.Bucket,dev.relism.flash.ext.limiter.LimitConfig,long%5B%5D)">check</a></code> in interface <code><a href="../RateLimitStrategy.html" title="interface in dev.relism.flash.ext.limiter">RateLimitStrategy</a></code></dd>
|
|
<dt>Parameters:</dt>
|
|
<dd><code>bucket</code> - per-key state carrier (pre-allocated, never null)</dd>
|
|
<dd><code>cfg</code> - immutable rule configuration</dd>
|
|
<dd><code>out</code> - caller-supplied two-element array; values are overwritten on every call</dd>
|
|
<dt>Returns:</dt>
|
|
<dd><code>true</code> if the request is within the limit and should proceed</dd>
|
|
</dl>
|
|
</section>
|
|
</li>
|
|
</ul>
|
|
</section>
|
|
</li>
|
|
</ul>
|
|
</section>
|
|
<!-- ========= END OF CLASS DATA ========= -->
|
|
</main>
|
|
<footer role="contentinfo">
|
|
<hr>
|
|
<p class="legal-copy"><small>Copyright © 2026. All rights reserved.</small></p>
|
|
</footer>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|