net.sf.jasperreports.engine.design.JRValidationException - Query parameter not found - php

Question

I use JasperServer and PHP JavaBridge to generate PDF reports via JasperServer inside PHP. I get compile error because of missing (unassigned) parameter passed to JRXML compiler
Fatal error: Uncaught [[o:Exception]:
"java.lang.Exception: Invoke failed:
[[c:JasperCompileManager]]->compileReport((o:String)[o:String]).
Cause: net.sf.jasperreports.engine.design.JRValidationException:
**Report design not valid** : 1. **Query parameter not found** : db_field_id VM:
1.6.0_18#http://java.sun.com/" at: #-12
net.sf.jasperreports.engine.design.JRAbstractCompiler.verifyDesign(JRAbstractCompiler.java:258)
I cant find a way to pass my
$params = new Java("java.util.HashMap");
foreach ($jrxml_params as $key => $jr_param) $params->put($key, $jr_param);
list of params to the compile method nor I can disable this verification by
$japser_props = new JavaClass("net.sf.jasperreports.engine.util.JRProperties");
$japser_props->COMPILER_XML_VALIDATION = false;
Here is what I use to generate PDF (works fine if JRXML file doesn't contain $P{} pamareters and halts otherwise)
$class = new JavaClass("java.lang.Class");
$class->forName("com.mysql.jdbc.Driver");
$driverManager = new JavaClass("java.sql.DriverManager");
$conn = $driverManager->getConnection("jdbc:mysql://localhost:3306/XXX?user=XXX&password=1234");
$compileManager = new JavaClass("net.sf.jasperreports.engine.JasperCompileManager");
$report = $compileManager->compileReport(realpath("/www/some.jrxml"));
$params = new Java("java.util.HashMap");
foreach ($jrxml_params as $key => $jr_param) $params->put($key, $jr_param);
$jasperPrint = $fillManager->fillReport($report, $params, $conn);
$exportManager = new JavaClass("net.sf.jasperreports.engine.JasperExportManager");
$outputPath = realpath(".")."/"."output.pdf";
$exportManager->exportReportToPdfFile($jasperPrint, $outputPath);
How do I avoid this error, I know what I need to pass and I don't know a way to do it, can't I just pass params to fillManager?

Answer 1

$japser_props = new JavaClass("net.sf.jasperreports.engine.util.JRProperties");
$japser_props->setProperty('net.sf.jasperreports.compiler.xml.validation',true);
this is the way to set property from PHP but that's not the problem. It turns out everything was fine, I've missed parameter declaration before my MySQL query... Put
<parameter name="db_field_id" class="java.lang.Integer">
in your JRXML before you use it as $P{db_field_id} now it compliles fine and later
$jasperPrint = $fillManager->fillReport($report, $params, $conn);
parameters are assigned at fill time