fix (parsing string with priority formula correct to int)

Testgenerator/src/main/java/de/fhmuenster/masterthesis/Testgenerator/prioritization/PrioritizationService.java

 package de.fhmuenster.masterthesis.Testgenerator.prioritization;
 
 import java.io.IOException;
+import java.math.BigDecimal;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.ArrayList;
@@ -15,6 +16,13 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.Scanner;
+
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+
+import com.udojava.evalex.Expression;
 
 import de.fhmuenster.masterthesis.Testgenerator.yaml.MigrationYaml;
 import de.fhmuenster.masterthesis.Testgenerator.yaml.YamlReader;
@@ -173,7 +181,7 @@ public class PrioritizationService {
 					int size = flow.getFlowSize();
 					int score = flow.getScore();
 					int dependency = flow.getDependency();
-					int finalScore = size + score + dependency;
+					int finalScore = PrioritizationService.sumTestPrioritiesByYAML(size, score, dependency);
 					
 					testPriorities.put(test.getName(), finalScore);
 				}
@@ -183,11 +191,34 @@ public class PrioritizationService {
 		return testPriorities;
 	}
 	
-	private void sumTestPrioritiesByYAML(int size, int score, int dependency) {
+	private static int sumTestPrioritiesByYAML(int size, int score, int dependency) {
 		YamlReader yamlReader = new YamlReader();
 		MigrationYaml yaml = yamlReader.loadMigrationYaml();
+		int sum = 0;
 		
+		try {
+			// factor is missing, static test prio is missing, createUpdate Test score is missing
+			
+			String expression = yaml.getPriority().getFormularPart2() + " " 
+								+ yaml.getPriority().getFormularPart3() + " " 
+								+ yaml.getPriority().getFormularPart4() + " " 
+								+ yaml.getPriority().getFormularPart5() + " " 
+								+ yaml.getPriority().getFormularPart6();
+			
+			expression = expression.replace("FlowSize", String.valueOf(size));
+			expression = expression.replace("FlowScore", String.valueOf(score));
+			expression = expression.replace("FlowDependency", String.valueOf(dependency));
+			
+			BigDecimal result = null;
+			result = new Expression(expression).eval();
+			sum = result.intValue();
+			
+		}
+		catch(Exception e) {
+			System.out.println(e.getMessage());
+		}
 		
+		return sum;
 	}
 	
 	/**

Testgenerator/src/main/resources/migration.yaml

@@ -164,7 +164,7 @@ priority:
   formularPart2: "FlowSize"
   formularPart3: "+"
   formularPart4: "FlowScore"
-  formularPart5: "/"
+  formularPart5: "+"
   formularPart6: "FlowDependency"
   factor: 2
   updateCreateScore: 200