On 5 May 2012 15:35, Geoffrey De Smet <ge0ffrey.spam@gmail.com> wrote:

Op 05-05-12 08:50, Nurlan schreef:

Hi guys!
I'm using drools-planner-*5.4.0.CR1*...

Let's say I have some solution(NOT FINAL BEST SOLUTION) which done by human
manually and I want get list of broken contraints for that solution, I've
tried

	this.scoreDirector.setWorkingSolution(someSolution);
	this.scoreDirector.calculateScore();

Something like that should work. For the exact correct usage, see the new section for the 5.4.0.Final manual:
https://hudson.jboss.org/hudson/view/Drools%20jBPM/job/drools-planner/lastSuccessfulBuild/artifact/drools-planner-docs/target/docbook/publish/en-US/html_single/index.html#d0e3786
It should never return null. I do in the examples all the time.

There is a point though, that the code above still requires the creation of a Solver (but it doesn't you to actually run it):

ScoreDirectorFactory scoreDirectorFactory = solverFactory.buildSolver().getScoreDirectorFactory();
ScoreDirector guiScoreDirector = scoreDirectorFactory.buildScoreDirector();
guiScoreDirector.setWorkingSolution(solution);
Score score = guiScoreDirector.calculateScore();

Feel free to make a jira if you agree that it shouldn't be needed to do a ".buildSolver()" in that code.

it returns *null* since it isn't connected with Solver

then I've tried using Solver with
<termination><maximumStepCount>0</maximumStepCount></termination>:
	this.scoreDirector.setWorkingSolution(someSolution);
	this.solver.setPlanningProblem(this.scoreDirector.getWorkingSolution());
	
	this.solver.solve();
		
	this.scoreDirector.setWorkingSolution(this.solver.getBestSolution());
	this.scoreDirector.calculateScore();

then it shows *java.lang.UnsupportedOperationException* because there is no
best solution in Solver

java.lang.UnsupportedOperationException: StepCountTermination can only be
used for phase termination.
	at
org.drools.planner.core.termination.StepCountTermination.isSolverTerminated(StepCountTermination.java:40)
	at
org.drools.planner.core.termination.OrCompositeTermination.isSolverTerminated(OrCompositeTermination.java:42)
	at
org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:181)
	at
org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:151)


how can implement this task? or I have to implement setBestSolution in
Solver, i think this is bad idea...

bad idea indeed

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-- 
With kind regards,
Geoffrey De Smet

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