<?php /* * Copyright 2012-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * http://aws.amazon.com/apache2.0 * * or in the "license" file accompanying this file. This file is distributed * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either * express or implied. See the License for the specific language governing * permissions and limitations under the License. */ require_once dirname(dirname(dirname(dirname(__FILE__)))) . DIRECTORY_SEPARATOR . 'sdk.class.php'; require_once 'BasicWorkflowWorker.php'; require_once 'cron_example_utils.php'; $swf = new AmazonSWF(); $domain = 'myDomain'; register_domain($swf, $domain, 'my domain', 7); register_workflow_type($swf, $domain, BasicWorkflowWorker::WORKFLOW_NAME, BasicWorkflowWorker::WORKFLOW_VERSION, 'Periodically runs stuff'); echo "Starting workflow worker polling\n"; $decider_task_list = 'deciderTaskList'; $workflow_worker = new BasicWorkflowWorker($swf, $domain, $decider_task_list); $workflow_worker->start();
protected static function _process_event($event, &$workflow_state, &$timer_opts, &$activity_opts, &$continue_as_new_opts, &$max_event_id)
{
$event_type = (string) $event->eventType;
$max_event_id = max($max_event_id, intval($event->eventId));
if (BasicWorkflowWorker::DEBUG) {
echo "event type: {$event_type}\n";
print_r($event);
}
switch ($event_type) {
case 'TimerStarted':
if ($workflow_state === BasicWorkflowWorkerStates::NOTHING_OPEN || $workflow_state === BasicWorkflowWorkerStates::START) {
$workflow_state = BasicWorkflowWorkerStates::TIMER_OPEN;
} else {
if ($workflow_state === BasicWorkflowWorkerStates::ACTIVITY_OPEN) {
$workflow_state = BasicWorkflowWorkerStates::TIMER_AND_ACTIVITY_OPEN;
}
}
break;
case 'TimerFired':
if ($workflow_state === BasicWorkflowWorkerStates::TIMER_OPEN) {
$workflow_state = BasicWorkflowWorkerStates::NOTHING_OPEN;
} else {
if ($workflow_state === BasicWorkflowWorkerStates::TIMER_AND_ACTIVITY_OPEN) {
$workflow_state = BasicWorkflowWorkerStates::ACTIVITY_OPEN;
}
}
break;
case 'ActivityTaskScheduled':
if ($workflow_state === BasicWorkflowWorkerStates::NOTHING_OPEN) {
$workflow_state = BasicWorkflowWorkerStates::ACTIVITY_OPEN;
} else {
if ($workflow_state === BasicWorkflowWorkerStates::TIMER_OPEN) {
$workflow_state = BasicWorkflowWorkerStates::TIMER_AND_ACTIVITY_OPEN;
}
}
break;
case 'ActivityTaskCanceled':
// add cancellation handling here
// add cancellation handling here
case 'ActivityTaskFailed':
// add failure handling here
// when an activity fails, a real application may want to retry it or report the incident
// add failure handling here
// when an activity fails, a real application may want to retry it or report the incident
case 'ActivityTaskTimedOut':
// add timeout handling here
// when an activity times out, a real application may want to retry it or report the incident
// add timeout handling here
// when an activity times out, a real application may want to retry it or report the incident
case 'ActivityTaskCompleted':
if ($workflow_state === BasicWorkflowWorkerStates::ACTIVITY_OPEN) {
$workflow_state = BasicWorkflowWorkerStates::NOTHING_OPEN;
} else {
if ($workflow_state === BasicWorkflowWorkerStates::TIMER_AND_ACTIVITY_OPEN) {
$workflow_state = BasicWorkflowWorkerStates::TIMER_OPEN;
}
}
break;
// This is the only case which doesn't only transition state;
// it also gathers the user's workflow input.
// This is the only case which doesn't only transition state;
// it also gathers the user's workflow input.
case 'WorkflowExecutionStarted':
$workflow_state = BasicWorkflowWorkerStates::START;
// gather gather gather
$event_attributes = $event->workflowExecutionStartedEventAttributes;
$workflow_input = json_decode($event_attributes->input, true);
if (BasicWorkflowWorker::DEBUG) {
echo 'Workflow input: ';
print_r($workflow_input);
}
$activity_opts = BasicWorkflowWorker::create_activity_opts_from_workflow_input($workflow_input);
$timer_opts = BasicWorkflowWorker::create_timer_opts_from_workflow_input($workflow_input);
$continue_as_new_opts = BasicWorkflowWorker::create_continue_as_new_opts_from_workflow_start($event_attributes);
break;
}
}
