io.split.client

Class HttpSplitChangeFetcher

java.lang.Object

io.split.client.HttpSplitChangeFetcher

All Implemented Interfaces:

SplitChangeFetcher

public final class HttpSplitChangeFetcher
extends Object
implements SplitChangeFetcher

Created by adilaijaz on 5/30/15.

Method Summary

Modifier and Type	Method and Description
static HttpSplitChangeFetcher	create(org.apache.http.impl.client.CloseableHttpClient client, URI root)
static HttpSplitChangeFetcher	create(org.apache.http.impl.client.CloseableHttpClient client, URI root, Metrics metrics)
SplitChange	fetch(long since) The returned list should contain AT MOST one split per name.

Methods inherited from class java.lang.Object

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

Method Detail

create

public static HttpSplitChangeFetcher create(org.apache.http.impl.client.CloseableHttpClient client,
                                            URI root)
                                     throws URISyntaxException

Throws:

URISyntaxException

create

public static HttpSplitChangeFetcher create(org.apache.http.impl.client.CloseableHttpClient client,
                                            URI root,
                                            Metrics metrics)
                                     throws URISyntaxException

Throws:

URISyntaxException

fetch

public SplitChange fetch(long since)

Description copied from interface: SplitChangeFetcher

The returned list should contain AT MOST one split per name. Thus, in the time between requested change number and latest change number, if multiple changes have happened to partitions tied to a name, just return the latest change.

If no changes have every happened, then return the an empty list of changed partitions, with the latest change number set to a value less than 0.

If no changes have happened since the change number requested, then return an empty list of changed partitions with the latest change number being the same as the requested change number.

If the client is asking for split changes for the first time, implementations should only return active partitions. No need to return killed partitions.

Specified by:

fetch in interface SplitChangeFetcher

Parameters:

since - a value less than zero implies that the client is requesting information on partitions for the first time.

Returns:

SegmentChange