| 1 | package de.uka.ipd.sdq.spa.basicsolver.visitor; |
| 2 | |
| 3 | import java.util.Hashtable; |
| 4 | |
| 5 | import de.uka.ipd.sdq.probfunction.math.IProbabilityDensityFunction; |
| 6 | import de.uka.ipd.sdq.probfunction.math.exception.FunctionNotInFrequencyDomainException; |
| 7 | import de.uka.ipd.sdq.spa.basicsolver.visitor.perfhandler.PerformanceAlternativeHandler; |
| 8 | import de.uka.ipd.sdq.spa.basicsolver.visitor.perfhandler.PerformanceHandlerFactory; |
| 9 | import de.uka.ipd.sdq.spa.basicsolver.visitor.perfhandler.PerformanceLoopHandler; |
| 10 | import de.uka.ipd.sdq.spa.basicsolver.visitor.perfhandler.PerformanceSequenceHandler; |
| 11 | import de.uka.ipd.sdq.spa.basicsolver.visitor.perfhandler.PerformanceSymbolHandler; |
| 12 | import de.uka.ipd.sdq.spa.expression.Alternative; |
| 13 | import de.uka.ipd.sdq.spa.expression.Expression; |
| 14 | import de.uka.ipd.sdq.spa.expression.Loop; |
| 15 | import de.uka.ipd.sdq.spa.expression.Sequence; |
| 16 | import de.uka.ipd.sdq.spa.expression.Symbol; |
| 17 | import de.uka.ipd.sdq.spa.expression.util.ExpressionSwitch; |
| 18 | |
| 19 | public class PerformanceVisitor { |
| 20 | |
| 21 | private PerformanceAlternativeHandler altHandler; |
| 22 | |
| 23 | private PerformanceLoopHandler loopHandler; |
| 24 | |
| 25 | private PerformanceSequenceHandler seqHandler; |
| 26 | |
| 27 | private PerformanceSymbolHandler symHandler; |
| 28 | |
| 29 | private Hashtable<Expression, IProbabilityDensityFunction> pdfTable; |
| 30 | |
| 31 | private ExpressionSwitch exprswitch = new ExpressionSwitch() { |
| 32 | |
| 33 | @Override |
| 34 | public Object caseAlternative(Alternative alternative) { |
| 35 | doSwitch(alternative.getLeftOption().getRegexp()); |
| 36 | doSwitch(alternative.getRightOption().getRegexp()); |
| 37 | altHandler.handle(alternative); |
| 38 | return alternative; |
| 39 | } |
| 40 | |
| 41 | @Override |
| 42 | public Object caseLoop(Loop loop) { |
| 43 | doSwitch(loop.getRegExp()); |
| 44 | loopHandler.handle(loop); |
| 45 | return loop; |
| 46 | } |
| 47 | |
| 48 | @Override |
| 49 | public Object caseSequence(Sequence sequence) { |
| 50 | doSwitch(sequence.getLeftRegExp()); |
| 51 | doSwitch(sequence.getRightRegExp()); |
| 52 | seqHandler.handle(sequence); |
| 53 | return sequence; |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public Object caseSymbol(Symbol symbol) { |
| 58 | symHandler.handle(symbol); |
| 59 | return symbol; |
| 60 | } |
| 61 | |
| 62 | }; |
| 63 | |
| 64 | |
| 65 | private PerformanceVisitor(){ |
| 66 | super(); |
| 67 | } |
| 68 | |
| 69 | public PerformanceVisitor(PerformanceAlternativeHandler altHandler, |
| 70 | PerformanceLoopHandler loopHandler, |
| 71 | PerformanceSequenceHandler seqHandler, |
| 72 | PerformanceSymbolHandler symHandler, Hashtable<Expression, IProbabilityDensityFunction> pdfTable) { |
| 73 | this(); |
| 74 | this.altHandler = altHandler; |
| 75 | this.loopHandler = loopHandler; |
| 76 | this.seqHandler = seqHandler; |
| 77 | this.symHandler = symHandler; |
| 78 | this.pdfTable = pdfTable; |
| 79 | } |
| 80 | |
| 81 | public PerformanceVisitor(PerformanceHandlerFactory factory) { |
| 82 | this(); |
| 83 | this.altHandler = factory.createAlternativeHandler(); |
| 84 | this.seqHandler = factory.createSequenceHandler(); |
| 85 | this.loopHandler = factory.createLoopHandler(); |
| 86 | this.symHandler = factory.createSymbolHandler(); |
| 87 | pdfTable = factory.getPdfTable(); |
| 88 | } |
| 89 | |
| 90 | public IProbabilityDensityFunction getResponseTime( |
| 91 | Expression expression) { |
| 92 | try { |
| 93 | if (pdfTable.get(expression) == null) { |
| 94 | exprswitch.doSwitch(expression); |
| 95 | } |
| 96 | return pdfTable.get(expression).getInverseFourierTransform(); |
| 97 | } catch (FunctionNotInFrequencyDomainException e) { |
| 98 | e.printStackTrace(); |
| 99 | System.exit(1); |
| 100 | } |
| 101 | return null; |
| 102 | } |
| 103 | |
| 104 | public void reset() { |
| 105 | pdfTable.clear(); |
| 106 | } |
| 107 | |
| 108 | public void setPDFTable( |
| 109 | Hashtable<Expression, IProbabilityDensityFunction> pdfTable) { |
| 110 | this.pdfTable = pdfTable; |
| 111 | loopHandler.setPdfTable(pdfTable); |
| 112 | altHandler.setPdfTable(pdfTable); |
| 113 | seqHandler.setPdfTable(pdfTable); |
| 114 | symHandler.setPdfTable(pdfTable); |
| 115 | } |
| 116 | |
| 117 | public AlternativeHandler getAltHandler() { |
| 118 | return altHandler; |
| 119 | } |
| 120 | |
| 121 | public void setAltHandler(PerformanceAlternativeHandler altHandler) { |
| 122 | this.altHandler = altHandler; |
| 123 | } |
| 124 | |
| 125 | public LoopHandler getLoopHandler() { |
| 126 | return loopHandler; |
| 127 | } |
| 128 | |
| 129 | public void setLoopHandler(PerformanceLoopHandler loopHandler) { |
| 130 | this.loopHandler = loopHandler; |
| 131 | } |
| 132 | |
| 133 | public SequenceHandler getSeqHandler() { |
| 134 | return seqHandler; |
| 135 | } |
| 136 | |
| 137 | public void setSeqHandler(PerformanceSequenceHandler seqHandler) { |
| 138 | this.seqHandler = seqHandler; |
| 139 | } |
| 140 | |
| 141 | public SymbolHandler getSymHandler() { |
| 142 | return symHandler; |
| 143 | } |
| 144 | |
| 145 | public void setSymHandler(PerformanceSymbolHandler symHandler) { |
| 146 | this.symHandler = symHandler; |
| 147 | } |
| 148 | } |