Ejemplo n.º 1
0
        public DatabaseQueryProcessor(DatabaseQueryProcessorSettings settingsIn = null)
        {
            if (settingsIn == null)
            {
                settingsIn = DatabaseQueryProcessorSettings.GenerateDefaultSettings();
            }

            KeywordTagger = AveragedPerceptronTagger.GetTagger();

            var keywordPredictorType = Type.GetType("OldManInTheShopServer.Models.KeywordPrediction." + settingsIn.KeywordPredictorIdString);

            if (keywordPredictorType == null)
            {
                throw new NullReferenceException("Type string " + settingsIn.KeywordPredictorIdString + " was not found matching a known class in KeywordPrediction");
            }
            try
            {
                KeywordPredictor = keywordPredictorType.GetMethod("GetGlobalModel").Invoke(null, null) as IKeywordPredictor;
            } catch (NullReferenceException e)
            {
                Console.WriteLine("Type " + settingsIn.KeywordPredictorIdString + " did not contain a GetGlobalModel method. It needs to have one.");
                throw e;
            }
            if (KeywordPredictor == null)
            {
                throw new InvalidCastException("Loaded class could not be cast to IKeywordPredictor");
            }

            var keywordClustererType = Type.GetType("OldManInTheShopServer.Models.KeywordClustering." + settingsIn.KeywordClustererIdString);

            if (keywordClustererType == null)
            {
                throw new NullReferenceException("Type string " + settingsIn.KeywordClustererIdString + " was not found matching a known class in KeywordClustering");
            }
            KeywordClusterer = keywordClustererType.GetConstructor(new Type[0]).Invoke(null) as IDatabaseKeywordClusterer;
            if (KeywordClusterer == null)
            {
                throw new InvalidCastException("Loaded class could not be cast to IDatabaseKeywordClusterer");
            }

            var problemPredictorType = Type.GetType("OldManInTheShopServer.Models.QueryProblemPrediction." + settingsIn.ProblemPredictorIdString);

            if (keywordPredictorType == null)
            {
                throw new NullReferenceException("Type string " + settingsIn.ProblemPredictorIdString + " was not found matching a known class in QueryProblemPrediction");
            }
            ProblemPredictor = problemPredictorType.GetConstructor(new Type[0]).Invoke(null) as IDatabaseQueryProblemPredictor;
            if (ProblemPredictor == null)
            {
                throw new InvalidCastException("Loaded class could not be cast to IDatabaseQueryProblemPredictor");
            }
        }
Ejemplo n.º 2
0
        public static DatabaseQueryProcessorSettings GenerateDefaultSettings()
        {
            DatabaseQueryProcessorSettings ret = new DatabaseQueryProcessorSettings()
            {
                TaggerFilePath           = "InitialData/averaged_perceptron_tagger.ans",
                KeywordPredictorFilePath = "InitialData/nb_keyword_predictor.ans",
                KeywordClustererIdString = "DatabaseKeywordSimilarityClusterer",
                KeywordPredictorIdString = "NaiveBayesKeywordPredictor",
                ProblemPredictorIdString = "DatabaseQueryProblemPredictor"
            };

            return(ret);
        }
Ejemplo n.º 3
0
        public static DatabaseQueryProcessorSettings RetrieveCompanySettings(MySqlDataManipulator manipulator, int companyId)
        {
            DatabaseQueryProcessorSettings companySettings = new DatabaseQueryProcessorSettings();
            List <CompanySettingsEntry>    settings        = manipulator.GetCompanySettings(companyId);

            foreach (CompanySettingsEntry setting in settings)
            {
                if (CompanySettingsKey.KeywordClusterer.Equals(setting.SettingKey))
                {
                    if (setting.SettingValue.Equals("Similarity"))
                    {
                        companySettings.KeywordClustererIdString = "DatabaseKeywordSimilarityClusterer";
                    }
                    else
                    {
                        companySettings.KeywordClustererIdString = "DatabaseKeywordSimilarityClusterer";
                    }
                }
                else if (CompanySettingsKey.KeywordPredictor.Equals(setting.SettingKey))
                {
                    if (setting.SettingValue.Equals("Bayesian"))
                    {
                        companySettings.KeywordPredictorIdString = "NaiveBayesKeywordPredictor";
                    }
                    else
                    {
                        companySettings.KeywordPredictorIdString = "NaiveBayesKeywordPredictor";
                    }
                }
                else if (CompanySettingsKey.ProblemPredictor.Equals(setting.SettingKey))
                {
                    if (setting.SettingValue.Equals("Database"))
                    {
                        companySettings.ProblemPredictorIdString = "DatabaseQueryProblemPredictor";
                    }
                    else
                    {
                        companySettings.ProblemPredictorIdString = "DatabaseQueryProblemPredictor";
                    }
                }
            }
            return(companySettings);
        }