<dependency> <groupId>com.example</groupId> <artifactId>material-feature-targeting</artifactId> <version>1.0.0</version> </dependency> TargetingRule rule = new TargetingRule(); rule.addCondition(new GeoLocationCondition("country", Operator.EQUALS, "China")); TargetingEngine engine = new TargetingEngine(); boolean isMatched = engine.isMatched(user, rule); TargetingMonitor monitor = new TargetingMonitor(); monitor.trackDisplay(user, ad); monitor.trackClick(user, ad);