@Override
public void run() throws LPModelException {
try {
int vertexClasses = (int) model().getLPConstant(FixedConstants.CIRCUIT_CLASSES).getValue();
LPNameGenerator dynCircuitNameGenerator =
model().getLPVarGroup(VarGroups.DYN_CIRCUITS).getNameGenerator();
LPConstraintGroup group = model().getLPConstraintGroup(this.getGroup().getIdentifier());
for (String s : vertices) {
for (String d : vertices) {
// for all distinct pair of vertices, routing can only use a link that exists : r(s,d,i,j)
// <= LE (i,j)
if (s.equals(d)) continue;
LPExpression lhs = new LPExpression(model());
for (int n = 1; n <= vertexClasses; n++) {
lhs.addTerm(model().getLPVar(dynCircuitNameGenerator.getName(n, s, d)));
}
LPExpression rhs = new LPExpression(model());
rhs.addTerm(model().getLPConstant(FixedConstants.DYN_CIRTUITS_MAX).getValue());
model().addConstraint(generator().getName(s, d), lhs, LPOperator.LESS_EQUAL, rhs, group);
}
}
} catch (LPNameException e) {
log.error("Variable name not found: " + e.getMessage());
throw new LPModelException("Variable name not found: " + e.getMessage());
}
}
@Override
public void run() throws LPModelException {
try {
LPNameGenerator routingNameGenerator =
model().getLPVarGroup(VarGroups.ROUTING).getNameGenerator();
LPConstraintGroup group = model().getLPConstraintGroup(this.getGroup().getIdentifier());
for (String s : vertices) {
for (String d : vertices) {
// Take a single s, d pair and create symmetric routing rules for all i,j pairs
if (s.compareTo(d) <= 0) continue;
for (String i : vertices) {
for (String j : vertices) {
if (i.equals(j)) continue;
LPExpression lhs = new LPExpression(model());
lhs.addTerm(model().getLPVar(routingNameGenerator.getName(s, d, i, j)));
LPExpression rhs = new LPExpression(model());
rhs.addTerm(model().getLPVar(routingNameGenerator.getName(d, s, j, i)));
model()
.addConstraint(
generator().getName(s, d, i, j), lhs, LPOperator.EQUAL, rhs, group);
}
}
}
}
} catch (LPNameException e) {
log.error("Variable name not found: " + e.getMessage());
throw new LPModelException("Variable name not found: " + e.getMessage());
}
}