feat: SRP changes

src/oops/SOLID/singleResponsibilityPrinciple/before/Employee.java

@@ -1,10 +1,4 @@
 package oops.SOLID.singleResponsibilityPrinciple.before;
-
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-
 /*
 Models an employee form a business perspective
  */
@@ -63,32 +57,5 @@ public String getFullName(){
         return this.firstName + " " + this.lastName;
     }
 
-    public  void save(){
-        try {
-        	Employee employee =this;
-            StringBuilder sb = new StringBuilder();
-            sb.append("### EMPLOYEE RECORD ####");
-            sb.append(System.lineSeparator());
-            sb.append("NAME: ");
-            sb.append(employee.firstName + " " + employee.lastName);
-            sb.append(System.lineSeparator());
-            sb.append("POSITION: ");
-            sb.append(employee.getClass().getTypeName());
-            sb.append(System.lineSeparator());
-            sb.append("EMAIL: ");
-            sb.append(employee.getEmail());
-            sb.append(System.lineSeparator());
-            sb.append("MONTHLY WAGE: ");
-            sb.append(employee.monthlyIncome);
-            sb.append(System.lineSeparator());
-
-            Path path = Paths.get(employee.getFullName()
-                    .replace(" ","_") + ".rec");
-            Files.write(path, sb.toString().getBytes());
-
-            System.out.println("Saved employee " + employee.toString());
-        } catch (IOException e){
-            System.out.println("ERROR: Could not save employee. " + e);
-        }
-    }
+
 }

src/oops/SOLID/singleResponsibilityPrinciple/before/EmployeeDetailsFilePersistence.java

@@ -0,0 +1,42 @@
+package oops.SOLID.singleResponsibilityPrinciple.before;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class EmployeeDetailsFilePersistence implements EmployeeDetailsPersistence{
+    Employee employee;
+
+    public EmployeeDetailsFilePersistence(Employee employee){
+        this.employee = employee;
+    }
+
+    public  void save(){
+        try {
+            StringBuilder sb = new StringBuilder();
+            sb.append("### EMPLOYEE RECORD ####");
+            sb.append(System.lineSeparator());
+            sb.append("NAME: ");
+            sb.append(employee.getFullName());
+            sb.append(System.lineSeparator());
+            sb.append("POSITION: ");
+            sb.append(employee.getClass().getTypeName());
+            sb.append(System.lineSeparator());
+            sb.append("EMAIL: ");
+            sb.append(employee.getEmail());
+            sb.append(System.lineSeparator());
+            sb.append("MONTHLY WAGE: ");
+            sb.append(employee.getMonthlyIncome());
+            sb.append(System.lineSeparator());
+
+            Path path = Paths.get(employee.getFullName()
+                    .replace(" ","_") + ".rec");
+            Files.write(path, sb.toString().getBytes());
+
+            System.out.println("Saved employee " + employee.toString());
+        } catch (IOException e){
+            System.out.println("ERROR: Could not save employee. " + e);
+        }
+    }
+}

src/oops/SOLID/singleResponsibilityPrinciple/before/EmployeeDetailsPersistence.java

@@ -0,0 +1,5 @@
+package oops.SOLID.singleResponsibilityPrinciple.before;
+
+public interface EmployeeDetailsPersistence {
+    void save();
+}

src/oops/SOLID/singleResponsibilityPrinciple/before/SaveEmployeesMain.java

@@ -10,7 +10,8 @@ public static void main(String[] args) {
 
         // Save all
         for (Employee e : employees){
-            e.save();
+            EmployeeDetailsPersistence edp = new EmployeeDetailsFilePersistence(e);
+            edp.save();
         }
     }
 }