Sistema di Login teoricamente completo. Nel main la classe LoginData si occupa di fare tutto. Per richiamare chi è loggato basta chiamare il metodo .getUserName. Per richiamre il tipo di account .getType. Per stamapre le info di chi è loggato .getUserDataInfo

it/unisa/info13d/Login/Access.java

@@ -1,6 +1,7 @@
 package it.unisa.info13d.Login;
 
-import java.io.InputStreamReader;
+import java.io.*;
+import java.util.ArrayList;
 import java.util.Scanner;
 
 /**
@@ -16,7 +17,7 @@ public class Access {
      * @param set_user_logged_here dove memorizzare il nome dell'utente loggato o registrato
      * @return false se Amministratore, true se Utente
      */
-    public static boolean get_access (String set_user_logged_here){
+    public static boolean get_access (LoggedUser set_user_logged_here) throws  FileNotFoundException,IOException,ClassNotFoundException{
 
         System.out.println("Benvenuto");
         Scanner reader = new Scanner(System.in);
@@ -40,7 +41,7 @@ public class Access {
 
 
 
-    protected static boolean login(String set_user_logged_here){
+    protected static boolean login(LoggedUser set_user_logged_here) throws  FileNotFoundException,IOException,ClassNotFoundException{
 
         Scanner reader = new Scanner(System.in);
         String name;
@@ -52,7 +53,7 @@ public class Access {
         password = reader.nextLine();
 
         for (; !(search_username (name,password)) ;){
-            System.out.println("Dati non trovati. Vuoi Registrarti ?: Y/N");
+            System.out.println("Username e/o password non trovati. Vuoi Registrarti ?: Y/N");
 
             String choice;
             choice = reader.nextLine();
@@ -72,12 +73,13 @@ public class Access {
             password = reader.nextLine();
         }
 
-      set_user_logged_here = name;
+      set_user_logged_here.logged_user = name;
+        System.out.println("Logged");
       return getAccountType(name);
 
     }
 
-    protected static boolean register( String set_user_logged_here ){
+    protected static boolean register ( LoggedUser set_user_logged_here ) throws  FileNotFoundException,IOException,ClassNotFoundException{
 
         Scanner reader = new Scanner(System.in);
         String name;
@@ -92,8 +94,8 @@ public class Access {
         store_data(name,password);
         System.out.println("Registered and Logged");
 
-        set_user_logged_here = name;
+        set_user_logged_here.logged_user = name;
-        return false;
+        return true;
 
     }
 
@@ -103,10 +105,27 @@ public class Access {
      * @param in_password
      * @return    true if math found, false elsewhere
      */
-    protected static boolean search_username (String in_name, String in_password){
+    protected static boolean search_username (String in_name, String in_password) throws  FileNotFoundException,IOException,ClassNotFoundException{
 
-         return false;
+        File f_data = new File("user_db");
+        if (  (f_data.exists())){
+            ObjectInputStream reader = new ObjectInputStream(new FileInputStream(f_data));
+            ArrayList<Entry> database = (ArrayList<Entry>) reader.readObject();
+            for (int i = 0 ; i < database.size();++i){
+                if  (
+                        database.get(i).getUser().equals( in_name) &&
+                        database.get(i).getPassword().equals(in_password)
+                    )
+                {
+                 reader.close();
+                 return true;
 
+                }
+            }
+            reader.close();
+
+        }
+            return false;
 
     }
 
@@ -115,9 +134,24 @@ public class Access {
      * @param in_name
      * @return   type of account (admin or user)
      */
-    protected static boolean getAccountType(String in_name){
+    protected static boolean getAccountType(String in_name) throws  FileNotFoundException,IOException,ClassNotFoundException{
 
-        return true;
+        File f_data = new File("user_db");
+        if (  (f_data.exists())){
+            ObjectInputStream reader = new ObjectInputStream(new FileInputStream(f_data));
+            ArrayList<Entry> database = (ArrayList<Entry>) reader.readObject();
+            for (int i = 0 ; i < database.size();++i){
+                if  (  database.get(i).getUser().equals( in_name)   )
+                {
+                    reader.close();
+                    return database.get(i).getType();
+
+                }
+            }
+            reader.close();
+
+        }
+        return false;
     }
 
     /**
@@ -126,9 +160,31 @@ public class Access {
      * @param in_nome
      * @param in_password
      */
-    protected static void store_data (String in_nome, String in_password){
+    protected static void store_data (String in_nome, String in_password) throws  FileNotFoundException,IOException,ClassNotFoundException{
 
+        File f_data = new File("user_db");
+        if (  (f_data.exists())){
+            //aggiungi dati al database
+            ObjectInputStream reader = new ObjectInputStream(new FileInputStream(f_data));
+            ArrayList<Entry> database = (ArrayList<Entry>) reader.readObject();
+            database.add(new Entry(in_nome,in_password,true));
+            reader.close();
+            ObjectOutputStream writer = new ObjectOutputStream(new FileOutputStream(f_data));
+            writer.writeObject(database);
+            writer.close();
+        }else{
 
+           //crea nuovo database e poi memorizza
+
+            ArrayList<Entry> database = new ArrayList<Entry>();
+            database.add(new Entry("admin","admin",false));
+            database.add(new Entry(in_nome,in_password,true));
+
+            ObjectOutputStream writer = new ObjectOutputStream(new FileOutputStream(f_data));
+            writer.writeObject(database);
+            writer.close();
+
+        }
 
     }
 

it/unisa/info13d/Login/Entry.java

@@ -0,0 +1,35 @@
+package it.unisa.info13d.Login;
+
+import java.io.Serializable;
+
+/**
+ * Created with MONSTER.
+ * User: xgiovio
+ * Date: 17/12/13
+ * Time: 0.38
+ */
+public class Entry implements Serializable{
+
+    public Entry (String in_user, String in_password, boolean in_type) {
+        user = in_user;
+        password = in_password;
+        type = in_type;
+    }
+
+    public String getUser() {
+        return user;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public boolean getType() {
+        return type;
+    }
+
+    private String user;
+    private String password;
+    private boolean type;
+
+}

it/unisa/info13d/Login/LoggedUser.java

@@ -0,0 +1,11 @@
+package it.unisa.info13d.Login;
+
+/**
+ * Created with MONSTER.
+ * User: xgiovio
+ * Date: 17/12/13
+ * Time: 1.41
+ */
+public class LoggedUser {
+    public String logged_user = "null";
+}

it/unisa/info13d/Login/LoginData.java

@@ -0,0 +1,49 @@
+package it.unisa.info13d.Login;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+/**
+ * Created with MONSTER.
+ * User: xgiovio
+ * Date: 17/12/13
+ * Time: 1.47
+ */
+public class LoginData {
+
+    public LoginData () throws FileNotFoundException,IOException,ClassNotFoundException{
+
+        LoggedUser logged_user = new LoggedUser();
+        boolean AccountType = true;
+        AccountType = Access.get_access(logged_user);
+
+        type = convert_type (AccountType);
+        username = logged_user.logged_user;
+
+    }
+
+    protected String convert_type (boolean value){
+        if (value == false)
+            return "Admin";
+            return "Client";
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void getUserDataInfo (){
+
+        System.out.println("***************************************");
+        System.out.println("Utente Loggato : " + username);
+        System.out.println("AccoutType : " + type );
+        System.out.println("***************************************");
+    }
+
+    private String username;
+    private String type;
+}

it/unisa/info13d/Main.java

@@ -1,13 +1,19 @@
 package it.unisa.info13d;
 
 import it.unisa.info13d.Login.Access;
+import it.unisa.info13d.Login.LoggedUser;
+import it.unisa.info13d.Login.LoginData;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
 
 public class Main {
 
-    public static void main(String[] args) {
+    public static void main(String[] args) throws FileNotFoundException,IOException,ClassNotFoundException {
+
+        LoginData login = new LoginData();
+        login.getUserDataInfo();
 
-        String logged_user = "null";
-        Access.get_access(logged_user);
 
     }
 }