| 1 | package de.uka.ipd.sdq.spa.basicsolver.visitor.perfhandler; |
| 2 | |
| 3 | import java.util.Hashtable; |
| 4 | |
| 5 | import de.uka.ipd.sdq.probfunction.math.IProbabilityDensityFunction; |
| 6 | import de.uka.ipd.sdq.probfunction.math.IProbabilityFunctionFactory; |
| 7 | import de.uka.ipd.sdq.probfunction.math.ISamplePDF; |
| 8 | import de.uka.ipd.sdq.probfunction.math.exception.ProbabilityFunctionException; |
| 9 | import de.uka.ipd.sdq.spa.basicsolver.visitor.SymbolHandler; |
| 10 | import de.uka.ipd.sdq.spa.expression.Expression; |
| 11 | import de.uka.ipd.sdq.spa.expression.Symbol; |
| 12 | import de.uka.ipd.sdq.spa.resourcemodel.ResourceUsage; |
| 13 | |
| 14 | /** |
| 15 | * @author Ihssane |
| 16 | * |
| 17 | */ |
| 18 | public class PerformanceSymbolHandler implements SymbolHandler { |
| 19 | |
| 20 | private Hashtable<Expression, IProbabilityDensityFunction> pdfTable; |
| 21 | |
| 22 | private IProbabilityFunctionFactory pfFactory = IProbabilityFunctionFactory.eINSTANCE; |
| 23 | |
| 24 | private int domainSize; |
| 25 | |
| 26 | protected PerformanceSymbolHandler( |
| 27 | Hashtable<Expression, IProbabilityDensityFunction> pdfTable, int domainSize) { |
| 28 | this(domainSize); |
| 29 | this.pdfTable = pdfTable; |
| 30 | } |
| 31 | |
| 32 | protected PerformanceSymbolHandler(int domainSize) { |
| 33 | super(); |
| 34 | this.domainSize = domainSize; |
| 35 | } |
| 36 | |
| 37 | public void handle(Symbol symbol) { |
| 38 | |
| 39 | try { |
| 40 | ResourceUsage resourceUsage = (ResourceUsage) symbol.getResourceUsages().get(0); |
| 41 | IProbabilityDensityFunction pdf = pfFactory.transformToPDF(resourceUsage.getUsageTime()); |
| 42 | ISamplePDF spdf = pfFactory.transformToSamplePDF(pdf); |
| 43 | spdf.expand(domainSize); |
| 44 | IProbabilityDensityFunction fftPDF = spdf.getFourierTransform(); |
| 45 | pdfTable.put(symbol, fftPDF); |
| 46 | } catch (ProbabilityFunctionException e) { |
| 47 | e.printStackTrace(); |
| 48 | System.exit(1); |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | public Hashtable<Expression, IProbabilityDensityFunction> getPdfTable() { |
| 53 | return pdfTable; |
| 54 | } |
| 55 | |
| 56 | public void setPdfTable( |
| 57 | Hashtable<Expression, IProbabilityDensityFunction> pdfTable) { |
| 58 | this.pdfTable = pdfTable; |
| 59 | } |
| 60 | |
| 61 | } |