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91 lines
2.7 KiB
91 lines
2.7 KiB
//==============================================================================
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//
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// Copyright (c) 2002-
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// Authors:
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// * Dave Parker <david.parker@comlab.ox.ac.uk> (University of Oxford)
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// * Christian von Essen <christian.vonessen@imag.fr> (Verimag, Grenoble)
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//
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//------------------------------------------------------------------------------
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//
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// This file is part of PRISM.
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//
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// PRISM is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// PRISM is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with PRISM; if not, write to the Free Software Foundation,
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// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//==============================================================================
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package explicit;
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import java.util.HashSet;
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import prism.PrismUtils;
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import strat.MDStrategy;
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/**
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* Base class for explicit-state representations of an MDP.
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*/
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public abstract class MDPExplicit extends ModelExplicit implements MDP
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{
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// Accessors (for Model)
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@Override
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public String infoString()
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{
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String s = "";
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s += numStates + " states (" + getNumInitialStates() + " initial)";
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s += ", " + getNumTransitions() + " transitions";
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s += ", " + getNumChoices() + " choices";
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s += ", dist max/avg = " + getMaxNumChoices() + "/" + PrismUtils.formatDouble2dp(((double) getNumChoices()) / numStates);
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return s;
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}
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@Override
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public String infoStringTable()
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{
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String s = "";
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s += "States: " + numStates + " (" + getNumInitialStates() + " initial)\n";
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s += "Transitions: " + getNumTransitions() + "\n";
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s += "Choices: " + getNumChoices() + "\n";
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s += "Max/avg: " + getMaxNumChoices() + "/" + PrismUtils.formatDouble2dp(((double) getNumChoices()) / numStates) + "\n";
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return s;
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}
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// Accessors (for NondetModel)
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@Override
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public boolean areAllChoiceActionsUnique()
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{
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HashSet<Object> sActions = new HashSet<Object>();
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for (int s = 0; s < numStates; s++) {
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int n = getNumChoices(s);
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if (n > 1) {
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sActions.clear();
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for (int i = 0; i < n; i++) {
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if (!sActions.add(getAction(s, i))) {
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return false;
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}
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}
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}
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}
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return true;
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}
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// Accessors (for MDP)
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@Override
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public Model constructInducedModel(MDStrategy strat)
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{
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return new DTMCFromMDPAndMDStrategy(this, strat);
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}
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}
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