gov.bnl.star.offline.scheduler.policy.copyselector
Interface CopySelector

All Known Implementing Classes:

AllCopiesSelector, MinMaxSingleCopySelector, RootdMinMaxSingleCopySelector, SingleCopySelector, XrootdMinMaxSingleCopySelector

public interface CopySelector

Process the result of a query and selected the actual copies to run the job on. This is part of the SelectorAssignmentStrategy, which is a non optimal but reasonable strategy. Refer the strategy documentation for more information

Author:

Gabriele Carcassi

Method Summary

int	selectCopy(QueryResult list, CatalogQuery query, FileAssignment assignment) Selects the physical copies from the query result according to the parameters of the query, and puts them in the assignment.

Method Detail

selectCopy

int selectCopy(QueryResult list,
               CatalogQuery query,
               FileAssignment assignment)

Selects the physical copies from the query result according to the parameters of the query, and puts them in the assignment. The selector has to guarantee not to remove files from the received assignment, but only add them.

Parameters:

list - the result of the query

query - the query that generated the result

assignment - the assignment where to add the copies

Returns:

the number of files added to the assignment