Examples with JRFileVirtualizer net.sf.jasperreports.engine.fill.JRFileVirtualizer used on opensource projects

Example 1 with JRFileVirtualizer

use of net.sf.jasperreports.engine.fill.JRFileVirtualizer in project midpoint by Evolveum.

the class ReportCreateTaskHandler method run.

@Override
public TaskRunResult run(Task task) {
    // TODO Auto-generated method stub
    OperationResult parentResult = task.getResult();
    OperationResult result = parentResult.createSubresult(ReportCreateTaskHandler.class.getSimpleName() + ".run");
    TaskRunResult runResult = new TaskRunResult();
    runResult.setOperationResult(result);
    recordProgress(task, 0, result);
    long progress = task.getProgress();
    JRSwapFile swapFile = null;
    // http://community.jaspersoft.com/wiki/virtualizers-jasperreports
    JRAbstractLRUVirtualizer virtualizer = null;
    try {
        ReportType parentReport = objectResolver.resolve(task.getObjectRef(), ReportType.class, null, "resolving report", task, result);
        Map<String, Object> parameters = completeReport(parentReport, task, result);
        JasperReport jasperReport = ReportTypeUtil.loadJasperReport(parentReport);
        LOGGER.trace("compile jasper design, create jasper report : {}", jasperReport);
        PrismContainer<ReportParameterType> reportParams = (PrismContainer) task.getExtensionItem(ReportConstants.REPORT_PARAMS_PROPERTY_NAME);
        if (reportParams != null) {
            PrismContainerValue<ReportParameterType> reportParamsValues = reportParams.getValue();
            List<Item<?, ?>> items = reportParamsValues.getItems();
            if (items != null) {
                for (Item item : items) {
                    PrismProperty pp = (PrismProperty) item;
                    String paramName = ItemPath.getName(pp.getPath().lastNamed()).getLocalPart();
                    Object value = null;
                    if (isSingleValue(paramName, jasperReport.getParameters())) {
                        value = pp.getRealValues().iterator().next();
                    } else {
                        value = pp.getRealValues();
                    }
                    parameters.put(paramName, value);
                }
            }
        }
        String virtualizerS = parentReport.getVirtualizer();
        Integer virtualizerKickOn = parentReport.getVirtualizerKickOn();
        Integer maxPages = parentReport.getMaxPages();
        Integer timeout = parentReport.getTimeout();
        if (maxPages != null && maxPages > 0) {
            LOGGER.trace("Setting hardlimit on number of report pages: " + maxPages);
            jasperReport.setProperty(MaxPagesGovernor.PROPERTY_MAX_PAGES_ENABLED, Boolean.TRUE.toString());
            jasperReport.setProperty(MaxPagesGovernor.PROPERTY_MAX_PAGES, String.valueOf(maxPages));
        }
        if (timeout != null && timeout > 0) {
            LOGGER.trace("Setting timeout on report execution [ms]: " + timeout);
            jasperReport.setProperty(TimeoutGovernor.PROPERTY_TIMEOUT_ENABLED, Boolean.TRUE.toString());
            jasperReport.setProperty(TimeoutGovernor.PROPERTY_TIMEOUT, String.valueOf(timeout));
        }
        if (virtualizerS != null && virtualizerKickOn != null && virtualizerKickOn > 0) {
            String virtualizerClassName = JASPER_VIRTUALIZER_PKG + "." + virtualizerS;
            try {
                Class<?> clazz = Class.forName(virtualizerClassName);
                if (clazz.equals(JRSwapFileVirtualizer.class)) {
                    swapFile = new JRSwapFile(TEMP_DIR, 4096, 200);
                    virtualizer = new JRSwapFileVirtualizer(virtualizerKickOn, swapFile);
                } else if (clazz.equals(JRGzipVirtualizer.class)) {
                    virtualizer = new JRGzipVirtualizer(virtualizerKickOn);
                } else if (clazz.equals(JRFileVirtualizer.class)) {
                    virtualizer = new JRFileVirtualizer(virtualizerKickOn, TEMP_DIR);
                } else {
                    throw new ClassNotFoundException("No support for virtualizer class: " + clazz.getName());
                }
                LOGGER.trace("Setting explicit Jasper virtualizer: " + virtualizer);
                virtualizer.setReadOnly(false);
                parameters.put(JRParameter.REPORT_VIRTUALIZER, virtualizer);
            } catch (ClassNotFoundException e) {
                LOGGER.error("Cannot find Jasper virtualizer: " + e.getMessage());
            }
        }
        LOGGER.trace("All Report parameters : {}", parameters);
        JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters);
        LOGGER.trace("fill report : {}", jasperPrint);
        String reportFilePath = generateReport(parentReport, jasperPrint);
        LOGGER.trace("generate report : {}", reportFilePath);
        saveReportOutputType(reportFilePath, parentReport, task, result);
        LOGGER.trace("create report output type : {}", reportFilePath);
        result.computeStatus();
    } catch (Exception ex) {
        LOGGER.error("CreateReport: {}", ex.getMessage(), ex);
        result.recordFatalError(ex.getMessage(), ex);
        runResult.setRunResultStatus(TaskRunResultStatus.PERMANENT_ERROR);
        runResult.setProgress(progress);
        return runResult;
    } finally {
        if (swapFile != null) {
            swapFile.dispose();
        }
        if (virtualizer != null) {
            virtualizer.cleanup();
        }
    }
    // This "run" is finished. But the task goes on ...
    runResult.setRunResultStatus(TaskRunResultStatus.FINISHED);
    runResult.setProgress(progress);
    LOGGER.trace("CreateReportTaskHandler.run stopping");
    return runResult;
}