feat(post): création de la classe post

chat/src/main/java/rtgre/chat/ChatController.java

@@ -194,10 +194,12 @@ public class ChatController implements Initializable {
     }
 
     public String getSelectedContactLogin() {
+        Contact contact;
         String login;
         try {
-            login = contactsListView.getSelectionModel().getSelectedItem().toString();
-        } catch (java.lang.NullPointerException e) {
+            contact = (Contact) contactsListView.getSelectionModel().getSelectedItem();
+            login = contact.getLogin();
+        } catch (Exception e) {
             login = null;
         }
         LOGGER.info("Selected login: " + login);

chat/src/main/java/rtgre/modeles/Post.java

@@ -0,0 +1,77 @@
+package rtgre.modeles;
+
+import org.json.JSONObject;
+
+import java.util.Date;
+import java.util.UUID;
+public class Post extends Message {
+
+    protected UUID id;
+    protected long timestamp;
+    protected String from;
+
+
+    public Post(UUID id, long timestamp, String from, String to, String body) {
+        /**
+         * Crée un objet Post
+         * @param: UUID id
+         * @param: long timestamp
+         * @param: String from
+         * @param: String to,
+         * @param: String body
+         */
+        super(to, body);
+        this.id = id;
+        this.timestamp = timestamp;
+        this.from = from;
+    }
+
+    public Post(String from, String to, String body) {
+        super(to, body);
+        this.from = from;
+        this.id = UUID.randomUUID();
+        this.timestamp = new Date().getTime();
+    }
+
+    public UUID getId() {
+        return id;
+    }
+
+    public long getTimestamp() {
+        return timestamp;
+    }
+
+    public String getFrom() {
+        return from;
+    }
+
+    @Override
+    public String toString() {
+        return "Post{" +
+                "id=" + id +
+                ", timestamp=" + timestamp +
+                ", from=" + from +
+                ", to=" + to +
+                ", body=" + body +
+                '}';
+    }
+
+    @Override
+    public String toJson() {
+        JSONObject json = toJsonObject()
+                .put("id", this.id)
+                .put("timestamp", this.timestamp)
+                .put("from", this.from);
+        return json.toString();
+    }
+
+    public static Post fromJson(JSONObject jsonObject) {
+        return new Post(
+                (UUID) jsonObject.get("id"),
+                jsonObject.getLong("timestamp"),
+                jsonObject.getString("from"),
+                jsonObject.getString("to"),
+                jsonObject.getString("body")
+                );
+    }
+}