/**
* Utility method used for constructing a parameter values map for subreports, sub datasets and
* crosstabs.
*
* @param filler report filler
* @param expressionEvaluator expression evaluator
* @param parametersMapExpression expression that yields bulk parameter values map
* @param subreportParameters list of individual parameter values
* @param evaluation evaluation type
* @param ignoreNullExpressions whether to ignore individual parameter value expressions
* @param removeResourceBundle whether to remove the {@link JRParameter#REPORT_RESOURCE_BUNDLE
* REPORT_RESOURCE_BUNDLE} value from the bulk values map
* @return the parameter values map
* @throws JRException
*/
public static Map<String, Object> getParameterValues(
// TODO using the filler or current dataset?
JRBaseFiller filler,
JRFillExpressionEvaluator expressionEvaluator,
JRExpression parametersMapExpression,
JRDatasetParameter[] subreportParameters,
byte evaluation,
boolean ignoreNullExpressions,
boolean removeResourceBundle,
boolean removeFormatFactory)
throws JRException {
Map<String, Object> parameterValues = null;
if (parametersMapExpression != null) {
parameterValues =
(Map<String, Object>) expressionEvaluator.evaluate(parametersMapExpression, evaluation);
}
if (parameterValues != null) {
// if the expression evaluates to the master parameters map
if (parameterValues == filler.getParameterValuesMap()) {
// create a clone of the map so that the master map is not altered
parameterValues = new HashMap<String, Object>(parameterValues);
}
// parameterValues.remove(JRParameter.REPORT_LOCALE);
if (removeResourceBundle) {
parameterValues.remove(JRParameter.REPORT_RESOURCE_BUNDLE);
}
if (removeFormatFactory) {
parameterValues.remove(JRParameter.REPORT_FORMAT_FACTORY);
}
// parameterValues.remove(JRParameter.REPORT_TIME_ZONE);
parameterValues.remove(JRParameter.JASPER_REPORT);
parameterValues.remove(JRParameter.REPORT_CONNECTION);
parameterValues.remove(JRParameter.REPORT_MAX_COUNT);
parameterValues.remove(JRParameter.REPORT_DATA_SOURCE);
parameterValues.remove(JRParameter.REPORT_SCRIPTLET);
// should we give access to scriplet extensions so that they can remove their parameters here?
// yes, but then you should also give them access to create built-in parameters... too much
// trouble.
JRScriptlet[] scriptlets = filler.getJasperReport().getScriptlets();
if (scriptlets != null) {
for (int i = 0; i < scriptlets.length; i++) {
parameterValues.remove(
scriptlets[i].getName() + JRScriptlet.SCRIPTLET_PARAMETER_NAME_SUFFIX);
}
}
parameterValues.remove(JRParameter.REPORT_VIRTUALIZER);
// parameterValues.remove(JRParameter.REPORT_CLASS_LOADER);
parameterValues.remove(JRParameter.IS_IGNORE_PAGINATION);
parameterValues.remove(JRParameter.SORT_FIELDS);
parameterValues.remove(JRParameter.FILTER);
parameterValues.remove(JRParameter.REPORT_PARAMETERS_MAP);
}
if (parameterValues == null) {
parameterValues = new HashMap<String, Object>();
}
/* */
if (subreportParameters != null && subreportParameters.length > 0) {
Object parameterValue = null;
for (int i = 0; i < subreportParameters.length; i++) {
JRExpression expression = subreportParameters[i].getExpression();
if (expression != null || !ignoreNullExpressions) {
parameterValue = expressionEvaluator.evaluate(expression, evaluation);
if (parameterValue == null) {
parameterValues.remove(subreportParameters[i].getName());
} else {
parameterValues.put(subreportParameters[i].getName(), parameterValue);
}
}
}
}
if (!parameterValues.containsKey(JRParameter.REPORT_LOCALE)) {
parameterValues.put(JRParameter.REPORT_LOCALE, filler.getLocale());
}
if (!parameterValues.containsKey(JRParameter.REPORT_TIME_ZONE)) {
parameterValues.put(JRParameter.REPORT_TIME_ZONE, filler.getTimeZone());
}
if (!parameterValues.containsKey(JRParameter.REPORT_FORMAT_FACTORY) && !removeFormatFactory) {
parameterValues.put(JRParameter.REPORT_FORMAT_FACTORY, filler.getFormatFactory());
}
if (!parameterValues.containsKey(JRParameter.REPORT_CLASS_LOADER)
&& filler.reportClassLoader != null) {
parameterValues.put(JRParameter.REPORT_CLASS_LOADER, filler.reportClassLoader);
}
if (!parameterValues.containsKey(JRParameter.REPORT_URL_HANDLER_FACTORY)
&& filler.urlHandlerFactory != null) {
parameterValues.put(JRParameter.REPORT_URL_HANDLER_FACTORY, filler.urlHandlerFactory);
}
if (!parameterValues.containsKey(JRParameter.REPORT_FILE_RESOLVER)
&& filler.fileResolver != null) {
parameterValues.put(JRParameter.REPORT_FILE_RESOLVER, filler.fileResolver);
}
if (!parameterValues.containsKey(JRParameter.REPORT_CONTEXT)) {
ReportContext context =
(ReportContext)
filler.getMainDataset().getParameterValue(JRParameter.REPORT_CONTEXT, true);
if (context != null) {
parameterValues.put(JRParameter.REPORT_CONTEXT, context);
}
}
return parameterValues;
}
