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worker-bundle

by Riverline

The WorkerBundle add abstraction to queue providers and allow to create Workers to consume queue workload.

README

Build Status

What is Riverline\WorkerBundle

Riverline\WorkerBundle add abstraction to queue providers and allow to create Workers to consume queue workload.

Requirements

  • PHP 5.3
  • Symfony 2.x

Installation

Riverline\WorkerBundle is compatible with composer and any prs-0 autoloader

Configuration

riverline_worker:
    providers:
        predis:
            class: Riverline\WorkerBundle\Provider\PRedis
            arguments:
                - { host: redis.example.com }
        sqs: #v1
            class: Riverline\WorkerBundle\Provider\AwsSQS
            arguments:
                - { key: xxxxxx, secret: xxxxx }
                - sqs.eu-west-1.amazonaws.com
        sqs: #v3
            class: Riverline\WorkerBundle\Provider\AwsSQSv3
            arguments:
                -
                    version: "latest"
                    region: "us-west-2"
                    credentials:
                        key: "xxxxxx"
                        secret: "xxxxxx"
        gearman:
            class: Riverline\WorkerBundle\Provider\Gearman
            arguments:
                - [ gearman1.example.com, gearman2.examplet.com ]
        amqp: ## WIP
            class: Riverline\WorkerBundle\Provider\AMQP
        semaphore:
            class: Riverline\WorkerBundle\Provider\Semaphore
    queues:
        queue1:
            name: ThisIsMyQueue
            provider: predis
        queue2:
            name: https://eu-west-1.queue.amazonaws.com/xxxxxx/xxxx
            provider: sqs

Usage

You can access any configured provider or queue through the Symfony Container

<?php

$provider = $this->get('riverline_worker.provider.predis');
$provider->put('ThisIsMyQueue', 'Hello World');

$queue = $this->get('riverline_worker.queue.queue1');
echo $queue->count()." item(s) in the queue";

You can easily create Workers

<?php

// src/Acme/DemoBundle/Command/DemoWorkerCommand.php

namespace Acme\DemoBundle\Command;

use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Riverline\WorkerBundle\Command\Worker;
use Riverline\WorkerBundle\Command\WorkerControlCodes;

class DemoWorkerCommand extends Worker
{
    protected function configureWorker()
    {
        $this
            // Queue name from the configuration
            ->setQueueName('queue1')

            // Inhered Command methods
            ->setName('demo-worker')
            ->setDescription('Test a worker')
        ;
    }

    protected function executeWorker(InputInterface $input, OutputInterface $output, $workload)
    {
        $output->writeln($workload);

        // Stop worker and dot not process other workloads
        if ($someReasonToStopAndExit)
        {
            return WorkerControlCodes::STOP_EXECUTION;
        }

        // else continue
        return WorkerControlCodes::CAN_CONTINUE;
    }
}

Then you can launch your worker like any other command

$ php app/console demo-worker
Hello World

You can pass options.

$ php app/console --worker-wait-timeout=60 --worker-limit=10 --memory-limit=128 --worker-exit-on-exception

This command wait 60 seconds for a workload from the queue, will process a maximum of 10 workloads or exit when usaed memory exceed 128Mb and exit if the executeWorker() throw an exception.

Copyright (c) 2004-2012 Romain Cambien

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.