pstlab / PLATINUm

import it.cnr.istc.pst.platinum.ai.deliberative.heuristic.pipeline.PipelineFlawSelectionHeuristic;

import it.cnr.istc.pst.platinum.ai.deliberative.solver.PseudoControllabilityAwareSolver;

import it.cnr.istc.pst.platinum.ai.deliberative.solver.SearchSpaceNode;

import it.cnr.istc.pst.platinum.ai.deliberative.solver.Solver;

import it.cnr.istc.pst.platinum.ai.deliberative.strategy.DepthFirstSearchStrategy;

import it.cnr.istc.pst.platinum.ai.framework.domain.component.PlanDataBase;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.FrameworkObject;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.annotation.cfg.FrameworkLoggerConfiguration;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.annotation.cfg.deliberative.FlawSelectionHeuristicsConfiguration;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.annotation.cfg.deliberative.PlannerSolverConfiguration;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.annotation.cfg.deliberative.SearchStrategyConfiguration;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.annotation.inject.deliberative.PlannerSolverPlaceholder;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.annotation.inject.framework.PlanDataBasePlaceholder;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.lang.ex.NoSolutionFoundException;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.lang.plan.PlanControllabilityType;

import it.cnr.istc.pst.platinum.ai.framework.microkernel.lang.plan.SolutionPlan;

import it.cnr.istc.pst.platinum.ai.framework.utils.log.FrameworkLoggingLevel;

/**

 * 

 * @author anacleto

 *

 */

@PlannerSolverConfiguration(

		solver = PseudoControllabilityAwareSolver.class,

		timeout = 180000

)

@FlawSelectionHeuristicsConfiguration(

		heuristics = PipelineFlawSelectionHeuristic.class

)

@SearchStrategyConfiguration(

		strategy = DepthFirstSearchStrategy.class

)

@FrameworkLoggerConfiguration(		

		// set logging level

		level = FrameworkLoggingLevel.INFO

)

public class Planner extends FrameworkObject 

{

	@PlanDataBasePlaceholder

	protected PlanDataBase pdb;

	@PlannerSolverPlaceholder

	protected Solver solver;

	protected SearchSpaceNode currentSolution;			// current solution found		

	/**

	 * 

	 */

	protected Planner() {

		super();

		this.currentSolution = null;

	}

	/**

	 * Display the current plan

	 */

	public void display() {

		// display the current plan

		this.pdb.display();

	}

	/**

	 * The method starts the planning process and return the solution plan if any.

	 * 

	 * If no solution plan is found the method throws an exception

	 * 

	 * @return

	 * @throws NoSolutionFoundException

	 */

	public SolutionPlan plan() 

			throws NoSolutionFoundException 

	{

		// get time 

		long start = System.currentTimeMillis();

		// find a solution to the planning problem

		this.currentSolution = this.solver.solve();

		// extract solution plan

		SolutionPlan plan = this.pdb.getSolutionPlan();

		plan.setControllability(PlanControllabilityType.PSEUDO_CONTROLLABILITY);

		// check solving time 

		long time = System.currentTimeMillis() - start;

		plan.setSolvingTime(time);

		// get the solution plan

		return plan;

	}

	/**

	 * The method returns a structure representing the current plan. 

	 * 

	 * @return

	 */

	public SolutionPlan getCurrentPlan() {

		// get current plan

		return this.pdb.getSolutionPlan();

	}

	/**

	 * 

	 * @return

	 */

	public SearchSpaceNode getCurrentNode() {

		return this.currentSolution;

	}

	/**

	 * 

	 * @return

	 */

	@Override

	public String toString() {

		// get a description of the plan data base

		return this.pdb.toString();

	}

	/**

	 * 

	 */

}