protected JRBaseParameter(JRParameter parameter, JRBaseObjectFactory factory) {
factory.put(parameter, this);
name = parameter.getName();
description = parameter.getDescription();
valueClassName = parameter.getValueClassName();
nestedTypeName = parameter.getNestedTypeName();
isSystemDefined = parameter.isSystemDefined();
isForPrompting = parameter.isForPrompting();
defaultValueExpression = factory.getExpression(parameter.getDefaultValueExpression());
propertiesMap = parameter.getPropertiesMap().cloneProperties();
}
public Map<String, Object> getJasperReportParameters() {
Map<String, Object> jasperReportParameters = Maps.newHashMap();
try {
HttpServletRequest request = ServletActionContext.getRequest();
String reportId = request.getParameter("report");
File targetJasperFile = getTargetJasperFile(reportId);
JasperReport jasperReport = (JasperReport) JRLoader.loadObject(targetJasperFile);
// 根据模板定义转换处理传入参数类型
JRParameter[] params = jasperReport.getParameters();
for (Map.Entry<String, Object> val : reportParameters.entrySet()) {
String key = val.getKey();
if (val.getValue() == null) {
continue;
}
String[] vals = (String[]) val.getValue();
for (JRParameter param : params) {
if (!param.isSystemDefined() && param.isForPrompting()) {
String name = param.getName();
Class<?> clazz = param.getValueClass();
if (!name.equals(key)) {
continue;
}
// TODO: 先初步添加集合处理，后续逐步添加数字、日期等类型转换处理
if (Collection.class.isAssignableFrom(clazz)) {
// 集合类型参数处理，TODO: 可以考虑进一步添加param.getNestedType()处理
jasperReportParameters.put(key, vals);
} else {
// 其余情况把参数转换为普通字符串传入
jasperReportParameters.put(val.getKey(), StringUtils.join(vals, ","));
}
}
}
}
// 设置一些缺省属性供模板内部使用
jasperReportParameters.put("_RPT_ID", reportId);
jasperReportParameters.put("_RPT_FORMAT", this.getFormat());
String url = request.getRequestURL().toString();
logger.debug("Report URL: " + url);
jasperReportParameters.put("_RPT_URL", url);
} catch (Exception e) {
logger.error(e.getMessage(), e);
throw new WebException(e.getMessage(), e);
}
return jasperReportParameters;
}
@SuppressWarnings("unchecked")
public void recalculateKeys() {
List l = (List) lock();
l.clear();
if (IReportManager.getPreferences().getBoolean("filter_parameters", false)) {
List paramsAll = dataset.getParametersList();
for (int i = 0; i < paramsAll.size(); ++i) {
JRParameter p = (JRParameter) paramsAll.get(i);
if (!p.isSystemDefined()) {
l.add(p);
}
}
} else {
l.addAll(dataset.getParametersList());
}
if (getNode() != null && getNode() instanceof ParametersNode) {
if (((ParametersNode) getNode()).isSort()) {
// Order elements by name...
Object[] parameters = l.toArray();
Arrays.sort(
parameters,
new Comparator() {
public int compare(Object o1, Object o2) {
return ((JRDesignParameter) o1)
.getName()
.compareToIgnoreCase(((JRDesignParameter) o2).getName());
}
});
l.clear();
l.addAll(Arrays.asList(parameters));
}
}
update();
}
