OVERVIEW

This sample shows a workflow that can be used to run tasks periodically.

PREREQUISITES

1. You must have a valid Amazon Web Services developer account.
2. Requires the AWS SDK for PHP. For more information on the AWS SDK for PHP, see http://aws.amazon.com/sdkforphp.
3. You must be signed up for Amazon Simple Workflow Service (SWF). For more information, see http://aws.amazon.com/swf.

RUNNING THE SAMPLE

• Download aws-sdk-php code
• Replace folder _samples/AmazonSimpleWorkflow/cron by this repository folder
• Config aws CFCredentials in config.inc.php
• Config your swf info in _samples/AmazonSimpleWorkflow/cron/Config.php
• Create the your workflow domain,name,activity ... in Amazon Simple Workflow Service (SWF)
• To run this sample, you need to execute three scripts from the command line in separate terminal/console windows

  1. Start the decider, which periodically schedules an activity task, using the command: php -f _samples/AmazonSimpleWorkflow/cron/workflow_decider_workers.php Once successfully started, the decider will start polling for decision tasks.

  2. Start the activity worker to perform the tasks using the command: php -f _samples/AmazonSimpleWorkflow/cron/first_activity_workers.php Once successfully started, the activity worker will start polling for first activity tasks.

  3. Start the activity worker to perform the tasks using the command: php -f _samples/AmazonSimpleWorkflow/cron/second_activity_workers.php Once successfully started, the activity worker will start polling for second activity tasks.

  4. Start a workflow execution using the command: php -f _samples/AmazonSimpleWorkflow/cron/example_workflow_execute.php After an execution has been started, the decider and activity worker will start processing tasks.

The decider will print a message to the console each time it completes a decision task and the activity worker will print a message to the console each time it completes an activity task.

Note that the start_cron_example_workflow.php script will exit quickly while the decider and activity worker scripts keep running until you manually terminate them.