Esempio n. 1
0
        /// <summary>
        ///   Generates all neighbors of the current.
        /// </summary>
        /// <param name = "current">The current.</param>
        /// <param name = "IncludingParent">if set to <c>true</c> [including parent].</param>
        /// <param name = "MaxNumber">The max number.</param>
        /// <returns></returns>
        public static List <candidate> GenerateAllNeighbors(candidate current, IList <ruleSet> Rulesets, Boolean IncludingParent = false,
                                                            bool InParallel = false, bool includeStopCondition = false, int MaxNumber = int.MaxValue)
        {
            var rand      = new Random();
            var neighbors = new List <candidate>();
            var ruleset   = Rulesets[current.activeRuleSetIndex];
            var options   = ruleset.recognize(current.graph, InParallel);

            if (options.Count == 0)
            {
                var noRuleCandidate = current.copy();
                noRuleCandidate.activeRuleSetIndex = ruleset.nextRuleSet(GenerationStatuses.NoRules);
                neighbors.Add(noRuleCandidate);
                return(neighbors);
            }
            while (MaxNumber < options.Count)
            {
                var i = rand.Next(options.Count);
                options.RemoveAt(i);
            }
            if (IncludingParent)
            {
                var parent = current.copy();
                parent.undoLastRule();
                neighbors.Add(parent);
            }
            if (InParallel)
            {
                Parallel.ForEach(options, opt =>
                {
                    var child = current.copy();
                    SearchProcess.transferLmappingToChild(child.graph, current.graph, opt);
                    opt.apply(child.graph, null);
                    child.addToRecipe(opt);
                    neighbors.Add(child);
                });
            }
            else
            {
                foreach (var opt in options)
                {
                    var child = current.copy();
                    SearchProcess.transferLmappingToChild(child.graph, current.graph, opt);
                    opt.apply(child.graph, null);
                    child.addToRecipe(opt);
                    neighbors.Add(child);
                    if (opt.ruleNumber == ruleset.TriggerRuleNum)
                    {
                        child.activeRuleSetIndex = ruleset.nextRuleSet(GenerationStatuses.TriggerRule);
                    }
                    else
                    {
                        child.activeRuleSetIndex = ruleset.nextRuleSet(GenerationStatuses.Normal);
                    }
                }
            }
            var stopCandidate = current.copy();

            stopCandidate.activeRuleSetIndex = ruleset.nextRuleSet(GenerationStatuses.Choice);
            neighbors.Add(stopCandidate);
            return(neighbors);
        }