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- Fixing Trac #173. The unused states are now excluded from the graph.

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- The path to graphviz installation (dot executable) is now configurable via the 'graphviz_path' config variable (defaults to /usr/bin/dot).
- If graphviz is present, the graph is generated on the fly, and using the current user's localization/translation for the state & transition names.

SVN:trunk[795]
This commit is contained in:
Denis Flaven
2010-09-07 20:04:21 +00:00
parent 306168c761
commit 39e943c20a
2 changed files with 35 additions and 13 deletions
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8
core/config.class.inc.php
View File

@@ -94,6 +94,14 @@ class Config
'source_of_value' => '',
'show_in_conf_sample' => false,
),
'graphviz_path' => array(
'type' => 'string',
'description' => 'Path to the Graphviz "dot" executable for graphing objects lifecycle',
'default' => '/usr/bin/dot',
'value' => '',
'source_of_value' => '',
'show_in_conf_sample' => false,
),
);
public function IsProperty($sPropCode)

40
pages/graphviz.php
View File

@@ -15,7 +15,7 @@
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
/**
* Renders a graph as a png (directly in the HTTP response)
* Renders a graph of the class' lifecycle as a png (directly in the HTTP response)
*
* @author Erwan Taloc <erwan.taloc@combodo.com>
* @author Romain Quetiez <romain.quetiez@combodo.com>
@@ -27,6 +27,10 @@ require_once('../application/application.inc.php');
require_once('../application/itopwebpage.class.inc.php');
require_once('../application/startup.inc.php');
require_once('../application/utils.inc.php');
require_once('../application/loginwebpage.class.inc.php');
LoginWebPage::DoLogin(); // Check user rights and prompt if needed
/**
* Helper to generate a Graphviz code for displaying the life cycle of a class
@@ -72,14 +76,19 @@ function GraphvizLifecycle($sClass)
}
foreach($aStates as $sStateCode => $aStateDef)
{
$sStateLabel = str_replace(' ', '\n', MetaModel::GetStateLabel($sClass, $sStateCode));
if ( ($aStatesLinks[$sStateCode]['in'] == 0) || ($aStatesLinks[$sStateCode]['out'] == 0))
if (($aStatesLinks[$sStateCode]['out'] > 0) || ($aStatesLinks[$sStateCode]['in'] > 0))
{
$sDotFileContent .= "\t$sStateCode [ shape=doublecircle,label=\"$sStateLabel\"];\n";
}
else
{
$sDotFileContent .= "\t$sStateCode [ shape=circle,label=\"$sStateLabel\"];\n";
// Show only reachable states
$sStateLabel = str_replace(' ', '\n', MetaModel::GetStateLabel($sClass, $sStateCode));
if ( ($aStatesLinks[$sStateCode]['in'] == 0) || ($aStatesLinks[$sStateCode]['out'] == 0))
{
// End or Start state, make it look different
$sDotFileContent .= "\t$sStateCode [ shape=doublecircle,label=\"$sStateLabel\"];\n";
}
else
{
$sDotFileContent .= "\t$sStateCode [ shape=circle,label=\"$sStateLabel\"];\n";
}
}
}
$sDotFileContent .= "}\n";
@@ -90,15 +99,20 @@ function GraphvizLifecycle($sClass)
$sClass = utils::ReadParam('class', 'bizIncidentTicket');
$sDir = dirname(__FILE__);
$sImageFilePath = $sDir."/../images/lifecycle/".$sClass.".png";
if (file_exists("/iTop/Graphviz/bin/dot.exe"))
$sDotExecutable = utils::GetConfig()->Get('graphviz_path');
if (file_exists($sDotExecutable))
{
// 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");
// From now on, fail silently, since the image file may
// already exist and we should not "pollute" the page's output
// with warnings in case we are unable to refresh the image
$rFile = @fopen($sDotFilePath, "w");
@fwrite($rFile, $sDotDescription);
@fclose($rFile);
//echo "<p>Executing command: <tt>$sDotExecutable -Tpng < $sDotFilePath > $sImageFilePath</tt></p>\n";
@exec("$sDotExecutable -Tpng < $sDotFilePath > $sImageFilePath");
}
header('Content-type: image/png');