src/main/java/wtf/metio/reguloj/LimitedRuleEngine.java

   1 /*
   2  * This file is part of reguloj. It is subject to the license terms in the LICENSE file found in the top-level
   3  * directory of this distribution and at https://creativecommons.org/publicdomain/zero/1.0/. No part of reguloj,
   4  * including this file, may be copied, modified, propagated, or distributed except according to the terms contained
   5  * in the LICENSE file.
   6  */
   7
   8 package wtf.metio.reguloj;
   9
  10 import java.util.Collection;
  11
  12 /**
  13  * Limits the total number of runs to a user supplied maximum.
  14  *
  15  * @param <CONTEXT> The type of the context.
  16  * @see ChainedRuleEngine
  17  * @see FirstWinsRuleEngine
  18  */
  19 final class LimitedRuleEngine<CONTEXT extends Context<?>> extends AbstractRuleEngine<CONTEXT> {
  20
  21   private final int maximumNumberOfRuns;
  22
  23   LimitedRuleEngine(final int maximumNumberOfRuns) {
  24     this.maximumNumberOfRuns = maximumNumberOfRuns;
  25   }
  26
  27   @Override
  28   public void infer(final Collection<Rule<CONTEXT>> rules, final CONTEXT context) {
  29     int currentRuns = 0;
  30     while (currentRuns++ < maximumNumberOfRuns && analyze(rules, context)) {
  31       rules.forEach(rule -> rule.run(context));
  32     }
  33   }
  34
  35 }