public IntegerVariable[] generateRandomDurations(final int n) {
final IntegerVariable[] durations = new IntegerVariable[n];
final int gap = horizon / n;
int max = gap + horizon % n;
for (int i = 0; i < n - 1; i++) {
final int v = RANDOM.nextInt(max) + 1;
max += gap - v;
durations[i] = Choco.constant(v);
}
durations[n - 1] = Choco.constant(max);
return durations;
}
private IntegerVariable getVariableForAttributeOperand(AttributeOperand operand) {
IntegerVariable variable = null;
if (operand instanceof AttributeReference) {
AttributeReference attRef = (AttributeReference) operand;
Attribute attribute = attRef.getAttribute();
variable = getOrCreateVariable(attribute);
} else if (operand instanceof AttributeValue) {
AttributeValue value = (AttributeValue) operand;
int valueInt = value.getInt();
String valueName = value.getName();
if (valueName != null && valueName.length() > 0) {
AttributeOperand other = getOtherOperand(operand);
if (other instanceof AttributeReference) {
AttributeReference attRef = (AttributeReference) other;
Domain domain = attRef.getAttribute().getDomain();
if (domain instanceof DiscreteDomain) {
DiscreteDomain discreteDomain = (DiscreteDomain) domain;
EList<DomainValue> values = discreteDomain.getValues();
for (DomainValue domainValue : values) {
String name = domainValue.getName();
if (valueName.equals(name)) {
valueInt = domainValue.getInt();
break;
}
}
} else if (domain instanceof NumericalDomain) {
valueInt = Integer.decode(valueName);
}
}
}
variable = Choco.constant(valueInt);
}
return variable;
}