eu.mais_h.mathsync

Class SummarizerFromJson

java.lang.Object

eu.mais_h.mathsync.SummarizerFromJson

All Implemented Interfaces:

Summarizer

public class SummarizerFromJson
extends Object
implements Summarizer

Summarizer which deserializes JSON payloads from a remote source.

Method Summary

Methods

Modifier and Type	Method and Description
static <T> Summarizer	custom(Function<Integer,String> producer, Digester digester, BucketSelector selector) Builds a custom summarizer.
static <T> Summarizer	simple(Function<Integer,String> producer) Builds a simple summarizer.
Summary	summarize(int level) Produces a summary at a given level of detail.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

summarize

public Summary summarize(int level)

Description copied from interface: Summarizer

Produces a summary at a given level of detail.

The larger detail level is, the bigger summary will consume on the wire, but the more information it conveys.

Specified by:

summarize in interface Summarizer

Parameters:

level - the level of detail.

Returns:

a summary of the current state at the requested level of detail.

simple

public static <T> Summarizer simple(Function<Integer,String> producer)

Builds a simple summarizer.

Parameters:

producer - function which fetches the JSON payload corresponding to a given level.

Returns:

a summarizer with SHA-1 digester and default bucket selector.

custom

public static <T> Summarizer custom(Function<Integer,String> producer,
                    Digester digester,
                    BucketSelector selector)

Builds a custom summarizer.

Parameters:

producer - function which fetches the JSON payload corresponding to a given level.

digester - the custom digester to use.

selector - the strategy to choose buckets to store items in.

Returns:

a summarizer corresponding to the input.