Package org.palladiosimulator.reliability.solver.sensitivity

Class MarkovSensitivity

    • Field Detail

      • LOGGER

        protected static final org.apache.log4j.Logger LOGGER
        A logger to give detailed information about the PCM instance transformation.

      • calculator

        protected SensitivityCalculator calculator
        A calculator for variations and steps during the sensitivity analysis.

      • helper

        protected EMFHelper helper
        Provides EMF utility functions.

      • logWriter

        protected BufferedWriter logWriter
        Provides a writer to the log file.

      • model

        protected org.palladiosimulator.solver.models.PCMInstance model
        The model on which sensitivity analysis is based.

      • name

        protected String name
        The name of this sensitivity (for logging).

      • numberOfSteps

        protected int numberOfSteps
        The number of steps to take during sensitivity analysis.

    • Constructor Detail

      • MarkovSensitivity

        protected MarkovSensitivity​(String name,
                            SensitivityParameterVariation variation)
        The constructor. Only to be invoked by concrete sub classes.
        Parameters:
        name - the name of the sensitivity analysis
        variation - the parameter variation

    • Method Detail

      • alterModel

        protected abstract boolean alterModel()
        Alters the model according to the next sensitivity analysis step.
        Returns:
        indicates if the model could be successfully altered

      • extractSensitivityInformation

        protected abstract void extractSensitivityInformation()
        Extracts the relevant sensitivity information from the given model.

      • finalize

        public void finalize()
        Finalizes the sensitivity analysis.
        Overrides:
        finalize in class Object

      • getCurrentStepNumber

        protected int getCurrentStepNumber()
        Retrieves the current step number.
        Returns:
        the current step number

      • getDoubleVariation

        protected DoubleParameterVariation getDoubleVariation()
        Returns the double parameter variation.
        Returns:
        the double parameter variation

      • getLogHeadingsMulti

        protected abstract List<List<String>> getLogHeadingsMulti()
        Builds the headings strings for logging.
        Returns:
        the log headings strings

      • getLogSingleResults

        protected List<String> getLogSingleResults​(List<MarkovTransformationResult> markovResults)
        Builds the results strings for sensitivity logging.
        Parameters:
        markovResults - the Markov transformation results
        Returns:
        the results strings

      • getLogSingleResultsMulti

        protected abstract List<String> getLogSingleResultsMulti()
        Builds the results string for sensitivity logging.
        Returns:
        the results strings

      • getModel

        protected org.palladiosimulator.solver.models.PCMInstance getModel()
        Retrieves the PCM instance.
        Returns:
        the PCM instance

      • getNextModel

        public org.palladiosimulator.solver.models.PCMInstance getNextModel()
        Retrieves the model to be used for the next step in the sensitivity analysis.
        Returns:
        the model

      • getStringSequence

        protected StringParameterSequence getStringSequence()
        Returns the string parameter sequence.
        Returns:
        the string parameter sequence

      • increaseCurrentStepNumber

        protected boolean increaseCurrentStepNumber()
        Increases the current step number.
        Returns:
        indicates an overflow

      • initialize

        public void initialize​(org.palladiosimulator.solver.models.PCMInstance model)
        Initializes the sensitivity analysis.
        Parameters:
        model - the PCM instance

      • logResults

        public void logResults​(List<MarkovTransformationResult> markovResults)
        Logs the results of the current sensitivity analysis step.
        Parameters:
        markovResults - the markov transformation results

      • resetCurrentStepNumber

        protected void resetCurrentStepNumber()
        Resets the current step number.

      • setLogFileName

        public void setLogFileName​(String logFileName)
        Sets the result log file name.
        Parameters:
        logFileName - the log file name

      • setModel

        protected void setModel​(org.palladiosimulator.solver.models.PCMInstance model)
        Sets the PCM instance.
        Parameters:
        model - the PCM instance

      • setResultSpecifications

        public void setResultSpecifications​(EList<SensitivityResultSpecification> resultSpecifications)
        Specifies the relevant Markov analysis results.
        Parameters:
        resultSpecifications - specification of results