| 1 | /** |
| 2 | * |
| 3 | */ |
| 4 | package de.uka.ipd.sdq.spa.basicsolver.visitor.perfhandler; |
| 5 | |
| 6 | import java.util.Hashtable; |
| 7 | |
| 8 | import de.uka.ipd.sdq.probfunction.math.IProbabilityDensityFunction; |
| 9 | import de.uka.ipd.sdq.probfunction.math.exception.FunctionsInDifferenDomainsException; |
| 10 | import de.uka.ipd.sdq.probfunction.math.exception.IncompatibleUnitsException; |
| 11 | import de.uka.ipd.sdq.probfunction.math.exception.UnknownPDFTypeException; |
| 12 | import de.uka.ipd.sdq.spa.basicsolver.visitor.AlternativeHandler; |
| 13 | import de.uka.ipd.sdq.spa.expression.Alternative; |
| 14 | import de.uka.ipd.sdq.spa.expression.Expression; |
| 15 | |
| 16 | /** |
| 17 | * @author Ihssane |
| 18 | * |
| 19 | */ |
| 20 | public class PerformanceAlternativeHandler implements AlternativeHandler { |
| 21 | |
| 22 | private Hashtable<Expression, IProbabilityDensityFunction> pdfTable; |
| 23 | |
| 24 | protected PerformanceAlternativeHandler( |
| 25 | Hashtable<Expression, IProbabilityDensityFunction> pdfTable) { |
| 26 | this.pdfTable = pdfTable; |
| 27 | } |
| 28 | |
| 29 | public void handle(Alternative alt) { |
| 30 | try { |
| 31 | IProbabilityDensityFunction leftDF = pdfTable.get(alt.getLeftOption() |
| 32 | .getRegexp()); |
| 33 | IProbabilityDensityFunction rightDF = pdfTable.get(alt.getRightOption() |
| 34 | .getRegexp()); |
| 35 | double rightProb = alt.getRightOption().getProbability(); |
| 36 | double leftProb = alt.getLeftOption().getProbability(); |
| 37 | |
| 38 | IProbabilityDensityFunction altPDF = leftDF.scale(leftProb).add( |
| 39 | rightDF.scale(rightProb)); |
| 40 | pdfTable.put(alt, altPDF); |
| 41 | } catch (FunctionsInDifferenDomainsException e) { |
| 42 | e.printStackTrace(); |
| 43 | System.exit(1); |
| 44 | } catch (UnknownPDFTypeException e) { |
| 45 | e.printStackTrace(); |
| 46 | System.exit(1); |
| 47 | } catch (IncompatibleUnitsException e) { |
| 48 | e.printStackTrace(); |
| 49 | System.exit(1); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | public Hashtable<Expression, IProbabilityDensityFunction> getPdfTable() { |
| 54 | return pdfTable; |
| 55 | } |
| 56 | |
| 57 | public void setPdfTable( |
| 58 | Hashtable<Expression, IProbabilityDensityFunction> pdfTable) { |
| 59 | this.pdfTable = pdfTable; |
| 60 | } |
| 61 | |
| 62 | public PerformanceAlternativeHandler() { |
| 63 | super(); |
| 64 | } |
| 65 | |
| 66 | } |