Examples with Facts org.jeasy.rules.api.Facts used on opensource projects

Example 16 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class Launcher method main.

public static void main(String[] args) {
    // define facts
    Facts facts = new Facts();
    facts.put("rain", true);
    // define rules
    WeatherRule weatherRule = new WeatherRule();
    Rules rules = new Rules();
    rules.register(weatherRule);
    // fire rules on known facts
    RulesEngine rulesEngine = new DefaultRulesEngine();
    rulesEngine.fire(rules, facts);
}

Example 17 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class SuspiciousRequestFilter method doFilter.

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException {
    Facts facts = new Facts();
    facts.put("request", request);
    rulesEngine.fire(rules, facts);
    filterChain.doFilter(request, response);
}

Example 18 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class Launcher method main.

public static void main(String[] args) {
    // define facts
    Facts facts = new Facts();
    facts.put("temperature", 30);
    // define rules
    Rule airConditioningRule = new RuleBuilder().name("air conditioning rule").when(itIsHot()).then(decreaseTemperature()).build();
    Rules rules = new Rules();
    rules.register(airConditioningRule);
    // fire rules on known facts
    RulesEngine rulesEngine = new InferenceRulesEngine();
    rulesEngine.fire(rules, facts);
}

Example 19 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class FizzBuzzWithEasyRules method main.

public static void main(String[] args) {
    // create rules engine
    RulesEngineParameters parameters = new RulesEngineParameters().skipOnFirstAppliedRule(true);
    RulesEngine fizzBuzzEngine = new DefaultRulesEngine(parameters);
    // create rules
    Rules rules = new Rules();
    rules.register(new FizzRule());
    rules.register(new BuzzRule());
    rules.register(new FizzBuzzRule(new FizzRule(), new BuzzRule()));
    rules.register(new NonFizzBuzzRule());
    // fire rules
    Facts facts = new Facts();
    for (int i = 1; i <= 100; i++) {
        facts.put("number", i);
        fizzBuzzEngine.fire(rules, facts);
        System.out.println();
    }
}

Example 20 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class Launcher method main.

public static void main(String[] args) {
    // create facts
    Facts facts = new Facts();
    // create rules
    Rules rules = new Rules();
    rules.register(new HelloWorldRule());
    // create a rules engine and fire rules on known facts
    RulesEngine rulesEngine = new DefaultRulesEngine();
    rulesEngine.fire(rules, facts);
}