PhabricatorTimelineEvent.php
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	<?php

	final class PhabricatorTimelineEvent extends PhabricatorTimelineDAO {

	protected $type;
	protected $dataID;

	private $data;

	public function __construct($type, $data = null) {
	parent::__construct();

	if (strlen($type) !== 4) {
	throw new Exception("Event types must be exactly 4 characters long.");
	}

	$this->type = $type;
	$this->data = $data;
	}

	public function getConfiguration() {
	return array(
	self::CONFIG_TIMESTAMPS => false,
	) + parent::getConfiguration();
	}

	public function recordEvent() {
	if ($this->getID()) {
	throw new Exception("Event has already been recorded!");
	}

	// Save the data first and point to it from the event to avoid a race
	// condition where we insert the event before the data and a consumer reads
	// it immediately.
	if ($this->data !== null) {
	$data = new PhabricatorTimelineEventData();
	$data->setEventData($this->data);
	$data->save();

	$this->setDataID($data->getID());
	}

	$this->save();
	}

	public function setData($data) {
	$this->data = $data;
	return $this;
	}

	public function getData() {
	return $this->data;
	}

	}