Token expiration added

buisnesslogic/src/main/java/com/plannaplan/entities/User.java

@@ -1,6 +1,7 @@
 package com.plannaplan.entities;
 
-import java.sql.Date;
+import java.sql.Timestamp;
+import java.util.concurrent.TimeUnit;
 
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
@@ -11,6 +12,8 @@ import com.plannaplan.types.UserRoles;
 
 @Entity
 public class User {
+    private static final float TOKEN_EXPIRE_MINUTES = 15;
+
     @Id
     @GeneratedValue(strategy = GenerationType.AUTO)
     private Long id;
@@ -19,7 +22,7 @@ public class User {
     private String email;
     private UserRoles role;
     private String token;
-    private Date tokenCreatedDate;
+    private Timestamp tokenUsageDate;
 
     public User() {
     }
@@ -39,8 +42,8 @@ public class User {
         this.email = email;
     }
 
-    public Date getTokenCreatedDate() {
-        return tokenCreatedDate;
+    public Timestamp getTokenUsageDate() {
+        return tokenUsageDate;
     }
 
     public String getToken() {
@@ -48,7 +51,7 @@ public class User {
     }
 
     public void setToken(String token) {
-        this.tokenCreatedDate = new Date(System.currentTimeMillis());
+        this.tokenUsageDate = new Timestamp(System.currentTimeMillis());
         this.token = token;
     }
 
@@ -79,4 +82,16 @@ public class User {
     public Long getId() {
         return this.id;
     }
+
+    public boolean isCredentialsNonExpired() {
+        final long diffInMilliseconds = Math
+                .abs(this.tokenUsageDate.getTime() - new Timestamp(System.currentTimeMillis()).getTime());
+        final long minutes = TimeUnit.MILLISECONDS.toMinutes(diffInMilliseconds);
+
+        if (minutes > TOKEN_EXPIRE_MINUTES) {
+            return false;
+        }
+        this.tokenUsageDate = new Timestamp(System.currentTimeMillis());
+        return true;
+    }
 }