/**
* Constructor: build an STPG from an MDP. Data is copied directly from the MDP so take a copy
* first if you plan to keep/modify the MDP.
*/
public STPGAbstrSimple(MDPSimple m) {
DistributionSet set;
int i;
// TODO: actions?
initialise(m.getNumStates());
copyFrom(m);
for (i = 0; i < numStates; i++) {
set = newDistributionSet(null);
set.addAll(m.getChoices(i));
addDistributionSet(i, set);
}
}
/** Constructor: empty STPG. */
public STPGAbstrSimple() {
initialise(0);
}
/** Constructor: new STPG with fixed number of states. */
public STPGAbstrSimple(int numStates) {
initialise(numStates);
}
@Override
public void buildFromPrismExplicit(String filename) throws PrismException {
BufferedReader in;
Distribution distr;
DistributionSet distrs;
String s, ss[];
int i, j, k1, k2, iLast, k1Last, k2Last, n, lineNum = 0;
double prob;
try {
// Open file
in = new BufferedReader(new FileReader(new File(filename)));
// Parse first line to get num states
s = in.readLine();
lineNum = 1;
if (s == null) {
in.close();
throw new PrismException("Missing first line of .tra file");
}
ss = s.split(" ");
n = Integer.parseInt(ss[0]);
// Initialise
initialise(n);
// Go though list of transitions in file
iLast = -1;
k1Last = -1;
k2Last = -1;
distrs = null;
distr = null;
s = in.readLine();
lineNum++;
while (s != null) {
s = s.trim();
if (s.length() > 0) {
ss = s.split(" ");
i = Integer.parseInt(ss[0]);
k1 = Integer.parseInt(ss[1]);
k2 = Integer.parseInt(ss[2]);
j = Integer.parseInt(ss[3]);
prob = Double.parseDouble(ss[4]);
// For a new state or distribution set or distribution
if (i != iLast || k1 != k1Last || k2 != k2Last) {
// Add any previous distribution to the last set, create new one
if (distrs != null) {
distrs.add(distr);
}
distr = new Distribution();
// Only for a new state or distribution set...
if (i != iLast || k1 != k1Last) {
// Add any previous distribution set to the last state, create new one
if (distrs != null) {
addDistributionSet(iLast, distrs);
}
distrs = newDistributionSet(null);
}
}
// Add transition to the current distribution
distr.add(j, prob);
// Prepare for next iter
iLast = i;
k1Last = k1;
k2Last = k2;
}
s = in.readLine();
lineNum++;
}
// Add previous distribution to the last set
distrs.add(distr);
// Add previous distribution set to the last state
addDistributionSet(iLast, distrs);
// Close file
in.close();
} catch (IOException e) {
System.out.println(e);
System.exit(1);
} catch (NumberFormatException e) {
throw new PrismException("Problem in .tra file (line " + lineNum + ") for " + getModelType());
}
// Set initial state (assume 0)
initialStates.add(0);
}