com.carrotsearch.ant.tasks.junit4.balancers
Class ExecutionTimeBalancer

java.lang.Object
  org.apache.tools.ant.ProjectComponent
      com.carrotsearch.ant.tasks.junit4.balancers.ExecutionTimeBalancer

All Implemented Interfaces:

SuiteBalancer, Cloneable

public class ExecutionTimeBalancer
extends org.apache.tools.ant.ProjectComponent
implements SuiteBalancer

A test suite balancer based on past execution times saved using ExecutionTimesReport.

Nested Class Summary

Nested classes/interfaces inherited from interface com.carrotsearch.ant.tasks.junit4.SuiteBalancer

SuiteBalancer.Assignment

Field Summary

Fields inherited from class org.apache.tools.ant.ProjectComponent

description, location, project

Constructor Summary

ExecutionTimeBalancer()

Method Summary

void	add(org.apache.tools.ant.types.ResourceCollection rc) Adds a resource collection with execution hints.
List<SuiteBalancer.Assignment>	assign(Collection<String> suiteNames, int slaves, long seed) Assign based on execution time history.
void	setOwner(JUnit4 owner) Sets the owner task (for logging mostly).
void	setVerbose(boolean verbose) Be verbose about estimated times etc.

Methods inherited from class org.apache.tools.ant.ProjectComponent

clone, getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutionTimeBalancer

public ExecutionTimeBalancer()

Method Detail

setVerbose

public void setVerbose(boolean verbose)

Be verbose about estimated times etc.

add

public void add(org.apache.tools.ant.types.ResourceCollection rc)

Adds a resource collection with execution hints.

assign

public List<SuiteBalancer.Assignment> assign(Collection<String> suiteNames,
                                             int slaves,
                                             long seed)

Assign based on execution time history. The algorithm is a greedy heuristic assigning the longest remaining test to the slave with the shortest-completion time so far. This is not optimal but fast and provides a decent average assignment.

Specified by:

assign in interface SuiteBalancer

Returns:

Returns an ordered list with assignments. Any suite name not present in the keys of the returned map will be assigned by following balancers (or randomly).

setOwner

public void setOwner(JUnit4 owner)

Description copied from interface: SuiteBalancer

Sets the owner task (for logging mostly).

Specified by:

setOwner in interface SuiteBalancer