From 13e45139f416af94064ea259ada49d20dd9e2daa Mon Sep 17 00:00:00 2001
From: dartwata <dartwata@yandex.ru>
Date: Wed, 13 Jul 2016 16:39:51 +0800
Subject: [PATCH] Message filter for TelegramLongPollingCommandBot

---
 .../bots/TelegramLongPollingCommandBot.java       | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/telegram/telegrambots/bots/TelegramLongPollingCommandBot.java b/src/main/java/org/telegram/telegrambots/bots/TelegramLongPollingCommandBot.java
index f9f8091f..d9c81d35 100644
--- a/src/main/java/org/telegram/telegrambots/bots/TelegramLongPollingCommandBot.java
+++ b/src/main/java/org/telegram/telegrambots/bots/TelegramLongPollingCommandBot.java
@@ -32,7 +32,7 @@ public abstract class TelegramLongPollingCommandBot extends TelegramLongPollingB
     public final void onUpdateReceived(Update update) {
         if (update.hasMessage()) {
             Message message = update.getMessage();
-            if (message.isCommand()) {
+            if ((message.isCommand()) && (filter(message))) {
                 if (commandRegistry.executeCommand(this, message)) {
                     return;
                 }
@@ -41,6 +41,19 @@ public abstract class TelegramLongPollingCommandBot extends TelegramLongPollingB
         processNonCommandUpdate(update);
     }
 
+    /**
+     * function message filter.
+     * Override this function in your bot implementation to filter messages with commands
+     *
+     * For example, if you want to prevent commands execution incoming from group chat:
+     *   #
+     *   # return !message.getChat().isGroupChat();
+     *   #
+     */
+    protected boolean filter(Message message) {
+       return true;
+    }
+
     @Override
     public final boolean register(BotCommand botCommand) {
         return commandRegistry.register(botCommand);