public void failurePruning(int failure_time) {
super.failurePruning(failure_time);
this.counterMoves = 0;
this.g = new DelegateForest<MetaVariable, ConstraintNetwork>();
this.resolvers.clear();
this.metaVarsToMetaCons.clear();
}
/**
* Service method for backtracking with serialization-based saving of {@link ConstraintNetwork}s.
* This method backs up {@link ConstraintNetwork}s before branching.
*/
private HashMap<ConstraintSolver, byte[]> backupCNs(MultiConstraintSolver conSol) {
// Here we want to save the CNs
ByteArrayOutputStream bos = null;
ObjectOutputStream oos = null;
HashMap<ConstraintSolver, byte[]> currentLevel = new HashMap<ConstraintSolver, byte[]>();
try {
bos = new ByteArrayOutputStream();
oos = new ObjectOutputStream(bos);
for (ConstraintSolver cs : conSol.getConstraintSolvers()) {
logger.finest("Backing up CN of " + cs.getClass().getSimpleName());
ConstraintNetwork cn = cs.getConstraintNetwork();
oos.writeObject(cn);
byte[] backup = bos.toByteArray();
currentLevel.put(cs, backup);
if (cs instanceof MultiConstraintSolver) {
// System.out.println("RECURSIVE on " + cs.getClass().getSimpleName());
HashMap<ConstraintSolver, byte[]> lower = backupCNs((MultiConstraintSolver) cs);
currentLevel.putAll(lower);
}
}
return currentLevel;
} catch (NotSerializableException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}