Override setGlobalTo of Laravel Mailer| Laravel Message Sending listener | Laravel Mail Sending Listener | How to create Event for Mail sending in Laravel 5

We need to create event listener for "Illuminate\Mail\Events\MessageSending" event. So our listener file would be under "project/app/Listeners" as below.

<?php namespace App\Listeners; use Illuminate\Support\Facades\Log; use Illuminate\Mail\Events\MessageSending; class MessageSendingListener { public function __construct() { } public function handle(MessageSending $swiftMessage) { $server = env("MODE", "LIVE"); if ($server != "LIVE") { $swiftMessage->message->setSubject($swiftMessage->message->getSubject() . " ($server)"); } Log::info("SENDING EMAIL=".$swiftMessage->message->getSubject()); } }

The above file will be called before each mail be send. So we can modify or check anything as global option.

Now we require to register event on EventServiceProvider.php file so, open app/Providers/EventServiceProvider.php and copy this code and put in your file.

<?php namespace App\Providers; use Illuminate\Contracts\Events\Dispatcher as DispatcherContract; use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider; class EventServiceProvider extends ServiceProvider { /** * The event listener mappings for the application. * * @var array */ protected $listen = [ 'App\Events\SomeEvent' => [ 'App\Listeners\EventListener', ], 'Illuminate\Mail\Events\MessageSending' => [ 'App\Listeners\MessageSendingListener', ], ]; /** * Register any other events for your application. * * @param \Illuminate\Contracts\Events\Dispatcher $events * @return void */ public function boot(DispatcherContract $events) { parent::boot($events); // } }

This is all.

File Change Listener Implementation Using Java

package com.pritom.kumar;

import java.io.File;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardWatchEventKinds;
import java.nio.file.WatchEvent;
import java.nio.file.WatchKey;
import java.nio.file.WatchService;
import java.util.List;

/**
 * Created by pritom on 25/09/2016.
 */
public class ChangeFileListener {
    public static void main(String[] args) throws Exception {
        startWatch("C:/tmp");
    }

    public static void startWatch(String location) {
        try {
            Path directory = Paths.get(location);
            println("Start listening directory: [" + location + "]");
            final WatchService watchService = directory.getFileSystem().newWatchService();
            directory.register(watchService, StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_DELETE, StandardWatchEventKinds.ENTRY_MODIFY);

            while (true) {
                final WatchKey watchKey = watchService.take();
                handleWatchTriggered(location, watchKey);
                boolean valid = watchKey.reset();
                if (!valid) {
                    throw new Exception("Watcher failed for listen [" + location + "]");
                }
            }
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    private static void handleWatchTriggered(String location, WatchKey watchKey) throws Exception {
        List<WatchEvent<?>> watchEventList = watchKey.pollEvents();
        for (WatchEvent watchEvent : watchEventList) {
            if (watchEvent.kind() == StandardWatchEventKinds.ENTRY_CREATE) {
                println("Created: [" + watchEvent.context().toString() + "]");
                File fileCreated = new File(location + "/" + watchEvent.context().toString());
            }
            else if (watchEvent.kind() == StandardWatchEventKinds.ENTRY_DELETE) {
                println("Deleted: [" + watchEvent.context().toString() + "]");
            }
            else if (watchEvent.kind() == StandardWatchEventKinds.ENTRY_MODIFY) {
                println("Modified: [" + watchEvent.context().toString() + "]");
            }
        }
    }

    public static void println(Object o) {
        System.out.println("" + o);
    }
}