Implemented notify

This commit is contained in:
Chris 2024-03-01 15:20:54 +01:00
parent f849ac481a
commit 6f49b69a66
4 changed files with 60 additions and 4 deletions

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@ -4,7 +4,7 @@
* Can run monolithic (create a bus and use as is), or distributed (create bus and use clients), or in a hybrid setup. The CommandBus functions identical with or without clients.
* All commands called asynchronously using promises and deferreds.
* Push notifications from the bus to subscribers and listeners, such as progress or log/error messages. (WIP)
* Push notifications from the bus to subscribers and listeners, such as progress or log/error messages.
### Potential caveats

44
examples/notify.php Normal file
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@ -0,0 +1,44 @@
<?php
require_once __DIR__."/../vendor/autoload.php";
use NoccyLabs\React\CommandBus\CommandBus;
use NoccyLabs\React\CommandBus\CommandBusClient;
use NoccyLabs\React\CommandBus\CommandRegistry;
use NoccyLabs\React\CommandBus\Context;
use React\EventLoop\Loop;
use React\Promise\Promise;
use React\Socket\SocketServer;
// This example demonstrates notifications, so there are no commands here.
// You can add whatever commands you like.
$commands = new CommandRegistry();
$bus = new CommandBus($commands);
$server = new SocketServer("tcp://127.0.0.1:9999");
$bus->addServer($server);
$bus->on(CommandBus::EVENT_NOTIFY,
function (string $event, array $data) {
printf("notify event: %s %s\n", $event, json_encode($data, JSON_UNESCAPED_SLASHES));
}
);
$client = new CommandBusClient();
$client->connect("tcp://127.0.0.1:9999");
$client->on(CommandBusClient::EVENT_NOTIFY,
function (string $event, array $data) {
printf("notify client: %s %s\n", $event, json_encode($data, JSON_UNESCAPED_SLASHES));
}
);
// Wait for connections etc, before sending a notification.
Loop::addTimer(1, function () use ($bus) {
$bus->notify("hello", [ 'greet'=>"World" ]);
});
// Shutdown in 2 secs
Loop::addTimer(2, function () use ($bus, $client) {
$bus->close();
$client->close();
});

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@ -109,6 +109,16 @@ class CommandBus implements CommandBusInterface
*/
public function notify(string $event, array $data): void
{
$this->emit(self::EVENT_NOTIFY, [ $event, $data ]);
$json = (new Message(Message::MSGTYPE_NOTIFY, [
'event' => $event,
'data' => $data
]))->toJson();
foreach ($this->connections as $client) {
$client->write($json."\n");
}
}
}

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@ -97,8 +97,10 @@ class CommandBusClient implements CommandBusInterface
unset($this->pending[$uuid]);
}
break;
case Message::MSGTYPE_REGISTRY: // command registry actions
// TODO implement me
case Message::MSGTYPE_NOTIFY: // notify
$event = $message->getData()['event']??null;
$data = (array)($message->getData()['data']??[]);
$this->emit(self::EVENT_NOTIFY, [ $event, $data ]);
break;
default:
$this->connection->end('{"msg":"error","data":{"error":"Unexpected message type"}}');