Pagination PHP/JavaBridge

senyahnoj

Hello<br />
<br />
I'm trying to implement pagination using PHP/JavaBridge but I'm struggling to find any examples as to how to do it.<br />
<br />
I can see some useful looking methods under iRenderTask in the API - getPageCount(), getPageNumber(), getTotalPage(), setPageNumber() - but I'm failing to get this to work <br />
<br />
Effectively what I want to do is get the number of pages and be able to pass a specific page number to the Report Engine.<br />
<br />
A (much abridged) snippet of my code appears below:<br />
<br />
<pre class='_prettyXprint _lang-auto _linenums:0'><?php
public function displayReport()
{
$fmt = new java('org.eclipse.birt.report.engine.api.HTMLRenderOption');
$fmt->setOutputFormat('html');
$fmt->setOption('HTML_PAGINATION', true);

$task = self::$_reportEngine->createRunAndRenderTask($this->_rptDesign);

$fmt->setOutputStream($out = new java('java.io.ByteArrayOutputStream'));
$task->setRenderOption($this->_format);

// echo $task->getPageCount(); die; # this returns an exception

$task->run();
$task->close();

return java_values($out->toByteArray());
}
?></pre>
<br />
Could anyone help me here. Is there any example code out there I might be able to look at?<br />
<br />
Thanks

JasonW

Under the JavaBridge app there are several examples on how to run the reports. If you want to support pagination you have to use two task (a Run Task and then a Render Task) In the Render Task you can set the page range or a page number like (look at the commented out lines):

<?php

define ("JAVA_HOSTS", "127.0.0.1:8080");
define ("JAVA_SERVLET", "/JavaBridge/JavaBridge.phpjavabridge");
$pth = "http://&quot; . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
$path_parts = pathinfo($pth);
$imageURLPrefix = $path_parts['dirname'] ."/sessionChartImages/";
require_once("java/Java.inc");

session_start();

$here = getcwd();

$ctx = java_context()->getServletContext();
$birtReportEngine = java("org.eclipse.birt.php.birtengine.BirtEngine")->getBirtEngine($ctx);
java_context()->onShutdown(java("org.eclipse.birt.php.birtengine.BirtEngine")->getShutdownHook());


try{

$document = $birtReportEngine->openReportDocument($here . "/reportDocuments/" . session_id() . "/mytopnreportdocument.rptdocument");
echo $document->getPageCount();
$task = $birtReportEngine->createRenderTask($document);
$taskOptions = new java("org.eclipse.birt.report.engine.api.HTMLRenderOption");
$outputStream = new java("java.io.ByteArrayOutputStream");
$taskOptions->setOutputStream($outputStream);
$taskOptions->setOutputFormat("html");
$ih = new java( "org.eclipse.birt.report.engine.api.HTMLServerImageHandler");
$taskOptions->setImageHandler($ih);

$taskOptions->setBaseImageURL($imageURLPrefix . session_id());
$taskOptions->setImageDirectory($here . "/sessionChartImages/" . session_id());
//$task->setPageRange("1-3");
//or
//$task->setPageNumber(3);
$task->setRenderOption( $taskOptions );
$task->render();
$task->close();

} catch (JavaException $e) {
echo $e; //"Error Calling BIRT";

}

echo $outputStream;

?>

notice after opening the document you can get the page count like:
echo $document->getPageCount();

To create a document use a run task like:

<?php
define ("JAVA_HOSTS", "127.0.0.1:8080");
define ("JAVA_SERVLET", "/JavaBridge/JavaBridge.phpjavabridge");

require_once("java/Java.inc");

session_start();
$here = getcwd();

$ctx = java_context()->getServletContext();
$birtReportEngine = java("org.eclipse.birt.php.birtengine.BirtEngine")->getBirtEngine($ctx);
java_context()->onShutdown(java("org.eclipse.birt.php.birtengine.BirtEngine")->getShutdownHook());


try{


$report = $birtReportEngine->openReportDesign("${here}/TopNPercent.rptdesign");
$task = $birtReportEngine->createRunTask($report);
$task->run($here . "/reportDocuments/" . session_id() . "/mytopnreportdocument.rptdocument");
$task->close();

} catch (JavaException $e) {
echo $e; //"Error Calling BIRT";

}
//echo "test";
//echo $outputStream->toString().trim();
echo "Document Created";



?>

Jason