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phorge/src/applications/fact/engine/PhabricatorChartRenderingEngine.php
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PhabricatorChartRenderingEngine.php
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<?php
final class PhabricatorChartRenderingEngine
extends Phobject {
private $viewer;
private $chart;
private $storedChart;
public function setViewer(PhabricatorUser $viewer) {
$this->viewer = $viewer;
return $this;
}
public function getViewer() {
return $this->viewer;
}
public function setChart(PhabricatorFactChart $chart) {
$this->chart = $chart;
return $this;
}
public function getChart() {
return $this->chart;
}
/**
* Load the chart by its key
* @param string $chart_key 12-character string identifier of chart to load
* @return PhabricatorFactChart
*/
public function loadChart($chart_key) {
$chart = id(new PhabricatorFactChart())->loadOneWhere(
'chartKey = %s',
$chart_key);
if ($chart) {
$this->setChart($chart);
}
return $chart;
}
/**
* Get the relative URI of the chart
* @param string $chart_key 12-character string identifier of chart to load
* @return string Relative URI of the chart, e.g. "fact/chart/a1b2c3d4e5f6/"
*/
public static function getChartURI($chart_key) {
return id(new PhabricatorFactChart())
->setChartKey($chart_key)
->getURI();
}
/**
* @return PhabricatorFactChart
*/
public function getStoredChart() {
if (!$this->storedChart) {
$chart = $this->getChart();
$chart_key = $chart->getChartKey();
if (!$chart_key) {
$chart_key = $chart->newChartKey();
$stored_chart = id(new PhabricatorFactChart())->loadOneWhere(
'chartKey = %s',
$chart_key);
if ($stored_chart) {
$chart = $stored_chart;
} else {
$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
try {
$chart->save();
} catch (AphrontDuplicateKeyQueryException $ex) {
$chart = id(new PhabricatorFactChart())->loadOneWhere(
'chartKey = %s',
$chart_key);
if (!$chart) {
throw new Exception(
pht(
'Failed to load chart with key "%s" after key collision. '.
'This should not be possible.',
$chart_key));
}
}
unset($unguarded);
}
$this->setChart($chart);
}
$this->storedChart = $chart;
}
return $this->storedChart;
}
/**
* @return PhutilSafeHTML
*/
public function newChartView() {
$chart = $this->getStoredChart();
$chart_key = $chart->getChartKey();
$chart_node_id = celerity_generate_unique_node_id();
$chart_view = phutil_tag(
'div',
array(
'id' => $chart_node_id,
'class' => 'chart-hardpoint',
));
$data_uri = urisprintf('/fact/chart/%s/draw/', $chart_key);
Javelin::initBehavior(
'line-chart',
array(
'chartNodeID' => $chart_node_id,
'dataURI' => (string)$data_uri,
));
return $chart_view;
}
public function newTabularView() {
$viewer = $this->getViewer();
$tabular_data = $this->newTabularData();
$ref_keys = array();
foreach ($tabular_data['datasets'] as $tabular_dataset) {
foreach ($tabular_dataset as $function) {
foreach ($function['data'] as $point) {
foreach ($point['refs'] as $ref) {
$ref_keys[$ref] = $ref;
}
}
}
}
$chart = $this->getStoredChart();
$ref_map = array();
foreach ($chart->getDatasets() as $dataset) {
foreach ($dataset->getFunctions() as $function) {
// If we aren't looking for anything else, bail out.
if (!$ref_keys) {
break 2;
}
$function_refs = $function->loadRefs($ref_keys);
$ref_map += $function_refs;
// Remove the ref keys that we found data for from the list of keys
// we are looking for. If any function gives us data for a given ref,
// that's satisfactory.
foreach ($function_refs as $ref_key => $ref_data) {
unset($ref_keys[$ref_key]);
}
}
}
$phids = array();
foreach ($ref_map as $ref => $ref_data) {
if (isset($ref_data['objectPHID'])) {
$phids[] = $ref_data['objectPHID'];
}
}
$handles = $viewer->loadHandles($phids);
$tabular_view = array();
foreach ($tabular_data['datasets'] as $tabular_data) {
foreach ($tabular_data as $function) {
$rows = array();
foreach ($function['data'] as $point) {
$ref_views = array();
$xv = date('Y-m-d h:i:s', $point['x']);
$yv = $point['y'];
$point_refs = array();
foreach ($point['refs'] as $ref) {
if (!isset($ref_map[$ref])) {
continue;
}
$point_refs[$ref] = $ref_map[$ref];
}
if (!$point_refs) {
$rows[] = array(
$xv,
$yv,
null,
null,
null,
);
} else {
foreach ($point_refs as $ref => $ref_data) {
$ref_value = $ref_data['value'];
$ref_link = $handles[$ref_data['objectPHID']]
->renderLink();
$view_uri = urisprintf(
'/fact/object/%s/',
$ref_data['objectPHID']);
$ref_button = id(new PHUIButtonView())
->setIcon('fa-table')
->setTag('a')
->setColor('grey')
->setHref($view_uri)
->setText(pht('View Data'));
$rows[] = array(
$xv,
$yv,
$ref_value,
$ref_link,
$ref_button,
);
$xv = null;
$yv = null;
}
}
}
$table = id(new AphrontTableView($rows))
->setHeaders(
array(
pht('X'),
pht('Y'),
pht('Raw'),
pht('Refs'),
null,
))
->setColumnClasses(
array(
'n',
'n',
'n',
'wide',
null,
));
$tabular_view[] = id(new PHUIObjectBoxView())
->setHeaderText(pht('Function'))
->setTable($table);
}
}
return $tabular_view;
}
public function newChartData() {
return $this->newWireData(false);
}
public function newTabularData() {
return $this->newWireData(true);
}
private function newWireData($is_tabular) {
$chart = $this->getStoredChart();
$chart_key = $chart->getChartKey();
$chart_engine = PhabricatorChartEngine::newFromChart($chart)
->setViewer($this->getViewer());
$chart_engine->buildChart($chart);
$datasets = $chart->getDatasets();
$functions = array();
foreach ($datasets as $dataset) {
foreach ($dataset->getFunctions() as $function) {
$functions[] = $function;
}
}
$subfunctions = array();
foreach ($functions as $function) {
foreach ($function->getSubfunctions() as $subfunction) {
$subfunctions[] = $subfunction;
}
}
foreach ($subfunctions as $subfunction) {
$subfunction->loadData();
}
$domain = $this->getDomain($functions);
$axis = id(new PhabricatorChartAxis())
->setMinimumValue($domain->getMin())
->setMaximumValue($domain->getMax());
$data_query = id(new PhabricatorChartDataQuery())
->setMinimumValue($domain->getMin())
->setMaximumValue($domain->getMax())
->setLimit(2000);
$wire_datasets = array();
$ranges = array();
foreach ($datasets as $dataset) {
if ($is_tabular) {
$display_data = $dataset->getTabularDisplayData($data_query);
} else {
$display_data = $dataset->getChartDisplayData($data_query);
}
$ranges[] = $display_data->getRange();
$wire_datasets[] = $display_data->getWireData();
}
$range = $this->getRange($ranges);
$chart_data = array(
'datasets' => $wire_datasets,
'xMin' => $domain->getMin(),
'xMax' => $domain->getMax(),
'yMin' => $range->getMin(),
'yMax' => $range->getMax(),
);
return $chart_data;
}
private function getDomain(array $functions) {
$domains = array();
foreach ($functions as $function) {
$domains[] = $function->getDomain();
}
$domain = PhabricatorChartInterval::newFromIntervalList($domains);
// If we don't have any domain data from the actual functions, pick a
// plausible domain automatically.
if ($domain->getMax() === null) {
$domain->setMax(PhabricatorTime::getNow());
}
if ($domain->getMin() === null) {
$domain->setMin($domain->getMax() - phutil_units('365 days in seconds'));
}
return $domain;
}
private function getRange(array $ranges) {
$range = PhabricatorChartInterval::newFromIntervalList($ranges);
// Start the Y axis at 0 unless the chart has negative values.
$min = $range->getMin();
if ($min === null || $min >= 0) {
$range->setMin(0);
}
// If there's no maximum value, just pick a plausible default.
$max = $range->getMax();
if ($max === null) {
$range->setMax($range->getMin() + 100);
}
return $range;
}
}

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