Examples with AndExpr org.batfish.z3.expr.AndExpr used on opensource projects

Example 11 with AndExpr

use of org.batfish.z3.expr.AndExpr in project batfish by batfish.

the class SimplifierTest method testSimplifyEmptyAnd.

/**
 * Test that an empty AND node is simplified to true (the identity under AND).
 */
@Test
public void testSimplifyEmptyAnd() {
    AndExpr and = new AndExpr(of());
    assertThat(simplifyBooleanExpr(and), equalTo(TrueExpr.INSTANCE));
}

Example 12 with AndExpr

use of org.batfish.z3.expr.AndExpr in project batfish by batfish.

the class SimplifierTest method testSimplifyAndExprNestedConjuncts.

/**
 * Test that nested ANDs get flattened into one AND.
 */
@Test
public void testSimplifyAndExprNestedConjuncts() {
    BooleanExpr p1 = newAtom();
    BooleanExpr p2 = newAtom();
    BooleanExpr p3 = newAtom();
    AndExpr leftNested = new AndExpr(of(new AndExpr(of(p1, p2)), p3));
    AndExpr rightNested = new AndExpr(of(p1, new AndExpr(of(p2, p3))));
    assertThat(leftNested, not(equalTo(rightNested)));
    assertThat(simplifyBooleanExpr(leftNested), equalTo(new AndExpr(of(p1, p2, p3))));
    assertThat(simplifyBooleanExpr(rightNested), equalTo(new AndExpr(of(p1, p2, p3))));
}

Example 13 with AndExpr

use of org.batfish.z3.expr.AndExpr in project batfish by batfish.

the class ExprPrinter method visitAndExpr.

@Override
public void visitAndExpr(AndExpr andExpr) {
    List<Expr> subExpressions = ImmutableList.<Expr>builder().add(new IdExpr("and")).addAll(andExpr.getConjuncts()).build();
    printExpandedComplexExpr(subExpressions);
}

Example 14 with AndExpr

use of org.batfish.z3.expr.AndExpr in project batfish by batfish.

the class IpSpaceBooleanExprTransformer method visitIpWildcardSetIpSpace.

@Override
public BooleanExpr visitIpWildcardSetIpSpace(IpWildcardSetIpSpace ipWildcardSetIpSpace) {
    BooleanExpr matchBlacklist = HeaderSpaceMatchExpr.matchIp(ipWildcardSetIpSpace.getBlacklist(), _useSrc, _useDst);
    BooleanExpr matchWhitelist = HeaderSpaceMatchExpr.matchIp(ipWildcardSetIpSpace.getWhitelist(), _useSrc, _useDst);
    return new AndExpr(ImmutableList.of(new NotExpr(matchBlacklist), matchWhitelist));
}

Example 15 with AndExpr

use of org.batfish.z3.expr.AndExpr in project batfish by batfish.

the class StandardReachabilityQuerySynthesizer method getReachabilityProgram.

@Override
public ReachabilityProgram getReachabilityProgram(SynthesizerInput input) {
    ImmutableList.Builder<RuleStatement> rules = ImmutableList.builder();
    List<StateExpr> finalActions = computeFinalActions();
    ImmutableList.Builder<BooleanExpr> queryPreconditions = ImmutableList.<BooleanExpr>builder().add(SaneExpr.INSTANCE).add(getSrcNattedConstraint());
    finalActions.stream().map(finalAction -> new BasicRuleStatement(new AndExpr(queryPreconditions.build()), ImmutableSet.of(finalAction), Query.INSTANCE)).forEach(rules::add);
    addOriginateRules(rules);
    return ReachabilityProgram.builder().setInput(input).setQueries(ImmutableList.of(new QueryStatement(Query.INSTANCE))).setRules(rules.build()).build();
}