Package com.linecorp.armeria.server.throttling.bucket4j

Class TokenBucket

java.lang.Object

com.linecorp.armeria.server.throttling.bucket4j.TokenBucket

@UnstableApi
public final class TokenBucket
extends Object

Stores configuration of the Token-Bucket algorithm, comprised of multiple limits.

Method Summary

Modifier and Type	Method	Description
static TokenBucketBuilder	builder()	Returns a newly created TokenBucketBuilder.
BandwidthLimit[]	limits()	Returns multiple limits applied to the bucket.
static TokenBucket	of(long limit, Duration period)	Returns a newly created TokenBucket with a single simple BandwidthLimit.
static TokenBucket	of(String specification)	Returns a newly created TokenBucket.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

builder

public static TokenBucketBuilder builder()

Returns a newly created TokenBucketBuilder.

of

public static TokenBucket of(String specification)

Returns a newly created TokenBucket. Computes a set of BandwidthLimit out of a comma-separated specification string that conforms to the following format, as per RateLimit Header Fields for HTTP:

 <bandwidth limit 1>[, <bandwidth limit 2>[, etc.]]
 

The order of elements inside specification is not defined. For example:

• 100;window=60;burst=1000, 50000;window=3600

Parameters:

specification - the specification used to create a BandwidthLimit

See Also:

• TokenBucketSpec.parseTokenBucket(String)

of

public static TokenBucket of(long limit,
 Duration period)

Returns a newly created TokenBucket with a single simple BandwidthLimit. Specifies easy limitation of limit tokens per period time window.

Parameters:

limit - the bucket size - defines the maximum count of tokens which can be held by the bucket and defines the speed at which tokens are regenerated in the bucket

period - the time window, during which the tokens will be regenerated

Returns:

Newly created TokenBucket

See Also:

• BandwidthLimit.of(long, Duration)

limits

public BandwidthLimit[] limits()

Returns multiple limits applied to the bucket. This may be empty.

Returns:

An array of BandwidthLimit

toString

public String toString()

Overrides:

toString in class Object