use of org.pentaho.platform.api.scheduler.BackgroundExecutionException in project pentaho-platform by pentaho.
the class ViewAction method doBackgroundExecution.
protected boolean doBackgroundExecution(final HttpServletRequest request, final HttpServletResponse response, final IPentahoSession userSession) throws ServletException, IOException {
if ("true".equals(request.getParameter("background"))) {
// $NON-NLS-1$ //$NON-NLS-2$
IBackgroundExecution backgroundExecutionHandler = PentahoSystem.get(IBackgroundExecution.class, userSession);
if (backgroundExecutionHandler != null) {
HttpRequestParameterProvider parameterProvider = new HttpRequestParameterProvider(request);
// $NON-NLS-1$
String intro = "";
// $NON-NLS-1$
String footer = "";
IUITemplater templater = PentahoSystem.get(IUITemplater.class, userSession);
if (templater != null) {
// $NON-NLS-1$ //$NON-NLS-2$
String[] sections = templater.breakTemplate("template-dialog.html", "", userSession);
if ((sections != null) && (sections.length > 0)) {
intro = sections[0];
}
if ((sections != null) && (sections.length > 1)) {
footer = sections[1];
}
} else {
// $NON-NLS-1$
intro = Messages.getInstance().getString("ViewAction.ERROR_0002_BAD_TEMPLATE_OBJECT");
}
response.getWriter().print(intro);
String backgroundResponse = null;
try {
backgroundResponse = backgroundExecutionHandler.backgroundExecuteAction(userSession, parameterProvider);
} catch (BackgroundExecutionException bex) {
backgroundResponse = bex.getLocalizedMessage();
response.getWriter().print(backgroundResponse);
response.getWriter().print(footer);
error(Messages.getInstance().getErrorString("ViewAction.ERROR_0004_UNABLE_TO_PERFORM_BACKGROUND_EXECUTION"), // $NON-NLS-1$
bex);
return false;
}
response.setHeader("background_execution", "true");
response.getWriter().print(backgroundResponse);
response.getWriter().print(footer);
return true;
} else {
// $NON-NLS-1$
error(Messages.getInstance().getErrorString("ViewAction.ERROR_0001_BACKGROUND_EXECUTE_NOT_SUPPORTED"));
}
}
return false;
}
Aggregations