From 1c8eabfc08da8131c8f2b63d230abf1117c2d85c Mon Sep 17 00:00:00 2001
From: Anton Romanov <a.romanov@ulstu.ru>
Date: Mon, 11 Sep 2023 18:22:00 +0400
Subject: [PATCH] #3 -- Config of fuzzy engine

---
 .../java/ru/ulstu/fc/config/FuzzyEngine.java   | 16 ++++++++++++++++
 .../fc/rule/service/FuzzyInferenceService.java | 18 ++++++++----------
 2 files changed, 24 insertions(+), 10 deletions(-)
 create mode 100644 src/main/java/ru/ulstu/fc/config/FuzzyEngine.java

diff --git a/src/main/java/ru/ulstu/fc/config/FuzzyEngine.java b/src/main/java/ru/ulstu/fc/config/FuzzyEngine.java
new file mode 100644
index 0000000..15b1e76
--- /dev/null
+++ b/src/main/java/ru/ulstu/fc/config/FuzzyEngine.java
@@ -0,0 +1,16 @@
+package ru.ulstu.fc.config;
+
+import com.fuzzylite.Engine;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class FuzzyEngine {
+    @Bean
+    public Engine getFuzzyEngine() {
+        Engine engine = new Engine();
+        engine.setName("Fuzzy rules");
+        engine.setDescription("");
+        return engine;
+    }
+}
diff --git a/src/main/java/ru/ulstu/fc/rule/service/FuzzyInferenceService.java b/src/main/java/ru/ulstu/fc/rule/service/FuzzyInferenceService.java
index 518a9e5..231b644 100644
--- a/src/main/java/ru/ulstu/fc/rule/service/FuzzyInferenceService.java
+++ b/src/main/java/ru/ulstu/fc/rule/service/FuzzyInferenceService.java
@@ -30,6 +30,7 @@ public class FuzzyInferenceService {
             + OUTPUT_VARIABLE_NAME
             + " is %s";
     private final static String NO_RESULT = "Нет результата";
+    private final Engine fuzzyEngine;
 
     private Map<String, List<Entry<String, Integer>>> inputFuzzyTerms = Map.of(
             "возраст",
@@ -48,6 +49,10 @@ public class FuzzyInferenceService {
                     new AbstractMap.SimpleEntry("средний", 100000),
                     new AbstractMap.SimpleEntry("большой", 1000000)));
 
+    public FuzzyInferenceService(Engine fuzzyEngine) {
+        this.fuzzyEngine = fuzzyEngine;
+    }
+
     private List<String> getDemoRules() {
         return List.of(
                 String.format(RULE_TEMPLATE, "возраст", "молодой", "доход", "высокий", "большой"),
@@ -112,13 +117,6 @@ public class FuzzyInferenceService {
         return mamdani;
     }
 
-    private Engine getFuzzyEngine() {
-        Engine engine = new Engine();
-        engine.setName("Fuzzy rules");
-        engine.setDescription("");
-        return engine;
-    }
-
     private Map<String, Double> getConsequent(Engine engine, Map<String, Double> variableValues) {
         OutputVariable outputVariable = engine.getOutputVariable(OUTPUT_VARIABLE_NAME);
         for (Map.Entry<String, Double> variableValue : variableValues.entrySet()) {
@@ -135,9 +133,9 @@ public class FuzzyInferenceService {
     }
 
     public Map<String, Double> getFuzzyInference() {
-        Engine engine = getFuzzyEngine();
-        engine.addRuleBlock(getRuleBlock(engine, getDemoRules()));
-        return getConsequent(engine, Map.of("возраст", 20.0, "доход", 250000.0));
+        fuzzyEngine.getRuleBlocks().clear();
+        fuzzyEngine.addRuleBlock(getRuleBlock(fuzzyEngine, getDemoRules()));
+        return getConsequent(fuzzyEngine, Map.of("возраст", 20.0, "доход", 250000.0));
     }
 
 }