dk.netarkivet.common.distribute.indexserver

Interface JobIndexCache

All Known Implementing Classes:

CDXIndexCache, CrawlLogIndexCache, DedupCrawlLogIndexCache, FullCrawlLogIndexCache, IndexRequestClient, TrivialJobIndexCache

public interface JobIndexCache

An interface to a cache of data for jobs.

Method Summary

Modifier and Type	Method and Description
Index<Set<Long>>	getIndex(Set<Long> jobIDs) Get an index for the given list of job IDs.
void	requestIndex(Set<Long> jobSet, Long harvestId) Request an index from the indexserver.

Method Detail

getIndex

Index<Set<Long>> getIndex(Set<Long> jobIDs)

Get an index for the given list of job IDs. The resulting file contains a suitably sorted list. This method should always be safe for asynchronous calling. This method may use a cached version of the file.

Parameters:

jobIDs - Set of job IDs to generate index for.

Returns:

An index, consisting of a file and the set this is an index for. This file must not be modified or deleted, since it is part of the cache of data.

requestIndex

void requestIndex(Set<Long> jobSet,
                  Long harvestId)

Request an index from the indexserver. Prepare the index but don't give it to me.

Parameters:

jobSet - Set of job IDs to generate index for.

harvestId - Harvestdefinition associated with this set of jobs