Files
iTop/pages/graphviz.php

83 lines
2.7 KiB
PHP

<?php
require_once('../application/application.inc.php');
require_once('../application/itopwebpage.class.inc.php');
require_once('../application/startup.inc.php');
/**
* Helper to generate a Graphviz code for displaying the life cycle of a class
* @param string $sClass The class to display
* @return string The Graph description in Graphviz/Dot syntax
*/
function GraphvizLifecycle($sClass)
{
$sDotFileContent = "";
$sStateAttCode = MetaModel::GetStateAttributeCode($sClass);
if (empty($sStateAttCode))
{
//$oPage->p("no lifecycle for this class");
}
else
{
$aStates = MetaModel::EnumStates($sClass);
$aStimuli = MetaModel::EnumStimuli($sClass);
$sDotFileContent .= "digraph finite_state_machine {
rankdir=LR;
size=\"12,12\"
node [ fontname=Verdana ];
edge [ fontname=Verdana ];
";
$aStatesLinks = array();
foreach ($aStates as $sStateCode => $aStateDef)
{
$aStatesLinks[$sStateCode] = array('in' => 0, 'out' => 0);
}
foreach ($aStates as $sStateCode => $aStateDef)
{
$sStateLabel = $aStates[$sStateCode]['label'];
$sStateDescription = $aStates[$sStateCode]['description'];
foreach(MetaModel::EnumTransitions($sClass, $sStateCode) as $sStimulusCode => $aTransitionDef)
{
$aStatesLinks[$sStateCode]['out']++;
$aStatesLinks[$aTransitionDef['target_state']]['in']++;
$sStimulusLabel = $aStimuli[$sStimulusCode]->Get('label');
$sTargetStateLabel = $aStates[$aTransitionDef['target_state']]['label'];
$sDotFileContent .= "\t$sStateCode -> {$aTransitionDef['target_state']} [ label=\"$sStimulusLabel\"];\n";
}
}
foreach($aStates as $sStateCode => $aStateDef)
{
$sStateLabel = str_replace(' ', '\n', $aStates[$sStateCode]['label']);
if ( ($aStatesLinks[$sStateCode]['in'] == 0) || ($aStatesLinks[$sStateCode]['out'] == 0))
{
$sDotFileContent .= "\t$sStateCode [ shape=doublecircle,label=\"$sStateLabel\"];\n";
}
else
{
$sDotFileContent .= "\t$sStateCode [ shape=circle,label=\"$sStateLabel\"];\n";
}
}
$sDotFileContent .= "}\n";
}
return $sDotFileContent;
}
$sClass = utils::ReadParam('class', 'bizIncidentTicket');
$sDir = dirname(__FILE__);
$sImageFilePath = $sDir."/../images/lifecycle/".$sClass.".png";
if (file_exists("/iTop/Graphviz/bin/dot.exe"))
{
// create the file with Graphviz
$sDotDescription = GraphvizLifecycle($sClass);
$sDotFilePath = $sDir."/tmp-lifecycle.dot";
$rFile = fopen($sDotFilePath, "w");
fwrite($rFile, $sDotDescription);
fclose($rFile);
exec("/iTop/Graphviz/bin/dot.exe -Tpng < $sDotFilePath > $sImageFilePath");
}
header('Content-type: image/png');
echo file_get_contents($sImageFilePath);
?>