Implemented notify
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@ -4,7 +4,7 @@
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* 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.
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* All commands called asynchronously using promises and deferreds.
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* Push notifications from the bus to subscribers and listeners, such as progress or log/error messages. (WIP)
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* Push notifications from the bus to subscribers and listeners, such as progress or log/error messages.
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### Potential caveats
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44
examples/notify.php
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44
examples/notify.php
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@ -0,0 +1,44 @@
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<?php
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require_once __DIR__."/../vendor/autoload.php";
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use NoccyLabs\React\CommandBus\CommandBus;
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use NoccyLabs\React\CommandBus\CommandBusClient;
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use NoccyLabs\React\CommandBus\CommandRegistry;
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use NoccyLabs\React\CommandBus\Context;
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use React\EventLoop\Loop;
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use React\Promise\Promise;
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use React\Socket\SocketServer;
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// This example demonstrates notifications, so there are no commands here.
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// You can add whatever commands you like.
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$commands = new CommandRegistry();
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$bus = new CommandBus($commands);
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$server = new SocketServer("tcp://127.0.0.1:9999");
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$bus->addServer($server);
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$bus->on(CommandBus::EVENT_NOTIFY,
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function (string $event, array $data) {
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printf("notify event: %s %s\n", $event, json_encode($data, JSON_UNESCAPED_SLASHES));
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}
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);
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$client = new CommandBusClient();
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$client->connect("tcp://127.0.0.1:9999");
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$client->on(CommandBusClient::EVENT_NOTIFY,
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function (string $event, array $data) {
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printf("notify client: %s %s\n", $event, json_encode($data, JSON_UNESCAPED_SLASHES));
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}
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);
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// Wait for connections etc, before sending a notification.
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Loop::addTimer(1, function () use ($bus) {
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$bus->notify("hello", [ 'greet'=>"World" ]);
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});
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// Shutdown in 2 secs
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Loop::addTimer(2, function () use ($bus, $client) {
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$bus->close();
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$client->close();
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});
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@ -109,6 +109,16 @@ class CommandBus implements CommandBusInterface
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*/
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public function notify(string $event, array $data): void
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{
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$this->emit(self::EVENT_NOTIFY, [ $event, $data ]);
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$json = (new Message(Message::MSGTYPE_NOTIFY, [
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'event' => $event,
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'data' => $data
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]))->toJson();
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foreach ($this->connections as $client) {
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$client->write($json."\n");
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}
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}
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}
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@ -84,7 +84,7 @@ class CommandBusClient implements CommandBusInterface
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private function onServerMessage(Message $message): void
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{
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// fprintf(STDERR, "onServerMessage: %s\n", $message->toJson());
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//fprintf(STDERR, "onServerMessage: %s\n", $message->toJson());
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switch ($message->getType()) {
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case Message::MSGTYPE_EXECUTE: // server call to execute command
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// TODO implement me
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@ -97,8 +97,10 @@ class CommandBusClient implements CommandBusInterface
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unset($this->pending[$uuid]);
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}
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break;
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case Message::MSGTYPE_REGISTRY: // command registry actions
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// TODO implement me
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case Message::MSGTYPE_NOTIFY: // notify
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$event = $message->getData()['event']??null;
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$data = (array)($message->getData()['data']??[]);
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$this->emit(self::EVENT_NOTIFY, [ $event, $data ]);
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break;
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default:
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$this->connection->end('{"msg":"error","data":{"error":"Unexpected message type"}}');
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