I created scripted dataset in Birt (4.4.0) along with a Event Handler:
public class ActionsPerDateDataSet extends ScriptedDataSetEventAdapter {
@Override
public boolean fetch( IDataSetInstance dataSet, IUpdatableDataSetRow row ) throws ScriptException {
}
@Override
public void open(IDataSetInstance dataSet) {
}
}
I generate the report using the following code:
public File actionPdf() throws EngineException, IOException {
IReportEngine engine = getEngine();
IReportRunnable design = engine.openReportDesign("c:\\...\\scripted.rptdesign");
IRunAndRenderTask task = engine.createRunAndRenderTask(design);
// Set parent classloader for engine
task.getAppContext().put(EngineConstants.APPCONTEXT_CLASSLOADER_KEY, ReportingService.class.getClassLoader());
File f = new File(System.nanoTime() + "res.pdf");
final IRenderOption options = new RenderOption();
options.setOutputFormat("pdf");
OutputStream os = new FileOutputStream(f);
options.setOutputStream(os);
task.setRenderOption(options);
task.run();
task.close();
os.close();
return f;
}
However Birt can't find the class:
Caused by: java.lang.ClassNotFoundException: com.foo.aip.ejb.reporting.action.ActionsPerDateDataSet
at org.eclipse.birt.core.framework.URLClassLoader.findClass1(URLClassLoader.java:188)
at org.eclipse.birt.core.framework.URLClassLoader$1.run(URLClassLoader.java:156)
at org.eclipse.birt.core.framework.URLClassLoader$1.run(URLClassLoader.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.birt.core.framework.URLClassLoader.findClass(URLClassLoader.java:151)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at org.eclipse.birt.report.engine.executor.ApplicationClassLoader.loadClass(ApplicationClassLoader.java:79)
at org.eclipse.birt.report.engine.executor.EventHandlerManager.loadClass(EventHandlerManager.java:99)
... 85 more
I am out of ideas :( Do you have any hints for me?
The classloader should be set when the engine is initialized, use an object of type org.eclipse.birt.report.engine.api.EngineConfig
EngineConfig config = new EngineConfig();
config.getAppContext().put(EngineConstants.APPCONTEXT_CLASSLOADER_KEY,ReportingService.class.getClassLoader());
Of course this will work only if "ReportingService" class is in the same classloader than "ActionsPerDateDataSet" but you don't provide informations about that. If it is not the case, set a further classloader to the BIRT engine with
config.setProperty( EngineConstants.WEBAPP_CLASSPATH_KEY,"c:/your-jar-location/actionperdataset.jar;c:/your-class-location" );
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