PHP code example of dromok / yii2-daemon

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

dromok / yii2-daemon example snippets

php composer.phar 

namespace console\controllers;

class WatcherDaemonController extends \dromok\daemon\controllers\WatcherDaemonController
{
    /**
     * @return array
     */
    protected function defineJobs()
    {
        sleep($this->sleep);
        //TODO: modify list, or get it from config, it does not matter
        $daemons = [
            ['className' => 'OneDaemonController', 'enabled' => true],
            ['className' => 'AnotherDaemonController', 'enabled' => false]
        ];
        return $daemons;
    }
}

namespace console\controllers;

use \dromok\daemon\DaemonController;

class {NAME}DaemonController extends DaemonController
{
    /**
     * @return array
     */
    protected function defineJobs()
    {
        /*
        TODO: return task list, extracted from DB, queue managers and so on. 
        Extract tasks in small portions, to reduce memory usage.
        */
    }
    /**
     * @return jobtype
     */
    protected function doJob($job)
    {
        /*
        TODO: implement you logic
        Don't forget to mark task as completed in your task source
        */
    }
}

namespace console\controllers\daemons;

use console\components\controllers\BaseDaemonController;
use PhpAmqpLib\Channel\AMQPChannel;
use PhpAmqpLib\Connection\AMQPStreamConnection;
use PhpAmqpLib\Message\AMQPMessage;

/**
 * Class SomeRabbitQueueController
 */
class SomeRabbitQueueController extends BaseDaemonController
{
    /**
     *  @var $connection AMQPStreamConnection
     */
    protected $connection;

    /**
     *  @var $connection AMQPChannel
     */
    protected $channel;


    /**
     * @return array|bool
     */
    protected function defineJobs()
    {
        $channel = $this->getQueue();
        while (count($channel->callbacks)) {
            try {
                $channel->wait(null, true, 5);
            } catch (\PhpAmqpLib\Exception\AMQPTimeoutException $timeout) {

            } catch (\PhpAmqpLib\Exception\AMQPRuntimeException $runtime) {
                \Yii::error($runtime->getMessage());
                $this->channel = null;
                $this->connection = null;
            }
        }
        return false;
    }

    /**
     * @param AMQPMessage $job
     * @return bool
     * @throws NotSupportedException
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    protected function doJob($job)
    {
        $result = false;

        //do somethink here and set $result

        if ($result) {
            $this->ask($job);
        } else {
            $this->nask($job);
        }
        return $result;
    }


    /**
     * @return AMQPChannel
     * @throws InvalidParamException
     */
    protected function getQueue()
    {
        if ($this->channel == null) {
            if ($this->connection == null) {
                if (isset(\Yii::$app->params['rabbit'])) {
                    $rabbit = \Yii::$app->params['rabbit'];
                } else {
                    throw new InvalidParamException('Bad config RabbitMQ');
                }
                $this->connection = new AMQPStreamConnection($rabbit['host'], $rabbit['port'], $rabbit['user'], $rabbit['password']);
            }

            $this->channel = $this->connection->channel();

            $this->channel->exchange_declare($this->exchange, $this->type, false, true, false);

            $args = [];

            if ($this->dlx) {
                $args['x-dead-letter-exchange'] = ['S', $this->exchange];
                $args['x-dead-letter-routing-key'] = ['S',$this->dlx];
            }
            if ($this->max_length) {
                $args['x-max-length'] = ['I', $this->max_length];
            }
            if ($this->max_bytes) {
                $args['x-max-length-bytes'] = ['I', $this->max_bytes];
            }
            if ($this->max_priority) {
                $args['x-max-priority'] = ['I', $this->max_priority];
            }

            list($queue_name, ,) = $this->channel->queue_declare($this->queue_name, false, true, false, false, false, $args);

            foreach ($this->binding_keys as $binding_key) {
                $this->channel->queue_bind($queue_name, $this->exchange, $binding_key);
            }

            $this->channel->basic_consume($queue_name, '', false, false, false, false, [$this, 'doJob']);
        }

        return $this->channel;
    }


    /**
     * @param $job
     */
    protected function ask($job)
    {
        $job->delivery_info['channel']->basic_ack($job->delivery_info['delivery_tag']);
    }

    /**
     * @param $job
     */
    protected function nask($job)
    {
        $job->delivery_info['channel']->basic_nack($job->delivery_info['delivery_tag']);
    }
}

    /**
     * Adjusting logger. You can override it.
     */
    protected function initLogger()
    {

        $targets = \Yii::$app->getLog()->targets;
        foreach ($targets as $name => $target) {
            $target->enabled = false;
        }
        $config = [
            'levels' => ['error', 'warning', 'trace', 'info'],
            'logFile' => \Yii::getAlias($this->logDir) . DIRECTORY_SEPARATOR . $this->shortClassName() . '.log',
            'logVars'=>[], // Don't log all variables
            'exportInterval'=>1, // Write each message to disk
            'except' => [
                'yii\db\*', // Don't 

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