/** @author Javier Paniza */
public class DescriptionsListTag extends TagSupport {
private static Log log = LogFactory.getLog(DescriptionsListTag.class);
private String reference;
public int doStartTag() throws JspException {
try {
HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
ModuleContext context = (ModuleContext) request.getSession().getAttribute("context");
String viewObject = request.getParameter("viewObject");
viewObject = (viewObject == null || viewObject.equals("")) ? "xava_view" : viewObject;
View view = (View) context.get(request, viewObject);
MetaReference metaReference = view.getMetaReference(reference).cloneMetaReference();
metaReference.setName(reference);
String prefix = request.getParameter("propertyPrefix");
prefix = prefix == null ? "" : prefix;
String application = request.getParameter("application");
String module = request.getParameter("module");
String referenceKey = Ids.decorate(application, module, prefix + reference);
request.setAttribute(referenceKey, metaReference);
String editorURL =
"reference.jsp?referenceKey="
+ referenceKey
+ "&onlyEditor=true&frame=false&composite=false&descriptionsList=true";
String editorPrefix = Module.isPortlet() ? "/WEB-INF/jsp/xava/" : "/xava/";
try {
pageContext.include(editorPrefix + editorURL);
} catch (ServletException ex) {
Throwable cause = ex.getRootCause() == null ? ex : ex.getRootCause();
log.error(cause.getMessage(), cause);
pageContext.include(editorPrefix + "editors/notAvailableEditor.jsp");
} catch (Exception ex) {
log.error(ex.getMessage(), ex);
pageContext.include(editorPrefix + "editors/notAvailableEditor.jsp");
}
} catch (Exception ex) {
log.error(ex.getMessage(), ex);
throw new JspException(XavaResources.getString("descriptionsList_tag_error", reference));
}
return SKIP_BODY;
}
public String getReference() {
return reference;
}
public void setReference(String property) {
this.reference = property;
}
}
/**
* To generate automatically reports from list mode.
*
* <p>Uses JasperReports.
*
* @author Javier Paniza
*/
public class GenerateReportServlet extends HttpServlet {
private static Log log = LogFactory.getLog(GenerateReportServlet.class);
public static class TableModelDecorator implements TableModel {
private TableModel original;
private List metaProperties;
private boolean withValidValues = false;
private Locale locale;
private boolean labelAsHeader = false;
private HttpServletRequest request;
private boolean format =
false; // format or no the values. If format = true, all values to the report are String
private Integer columnCountLimit;
public TableModelDecorator(
HttpServletRequest request,
TableModel original,
List metaProperties,
Locale locale,
boolean labelAsHeader,
boolean format,
Integer columnCountLimit)
throws Exception {
this.request = request;
this.original = original;
this.metaProperties = metaProperties;
this.locale = locale;
this.withValidValues = calculateWithValidValues();
this.labelAsHeader = labelAsHeader;
this.format = format;
this.columnCountLimit = columnCountLimit;
}
private boolean calculateWithValidValues() {
Iterator it = metaProperties.iterator();
while (it.hasNext()) {
MetaProperty m = (MetaProperty) it.next();
if (m.hasValidValues()) return true;
}
return false;
}
private MetaProperty getMetaProperty(int i) {
return (MetaProperty) metaProperties.get(i);
}
public int getRowCount() {
return original.getRowCount();
}
public int getColumnCount() {
return columnCountLimit == null ? original.getColumnCount() : columnCountLimit;
}
public String getColumnName(int c) {
return labelAsHeader
? getMetaProperty(c).getLabel(locale)
: Strings.change(getMetaProperty(c).getQualifiedName(), ".", "_");
}
public Class getColumnClass(int c) {
return original.getColumnClass(c);
}
public boolean isCellEditable(int row, int column) {
return original.isCellEditable(row, column);
}
public Object getValueAt(int row, int column) {
if (isFormat()) return getValueWithWebEditorsFormat(row, column);
else return getValueWithoutWebEditorsFormat(row, column);
}
private Object getValueWithoutWebEditorsFormat(int row, int column) {
Object r = original.getValueAt(row, column);
if (r instanceof Boolean) {
if (((Boolean) r).booleanValue()) return XavaResources.getString(locale, "yes");
return XavaResources.getString(locale, "no");
}
if (withValidValues) {
MetaProperty p = getMetaProperty(column);
if (p.hasValidValues()) {
return p.getValidValueLabel(locale, original.getValueAt(row, column));
}
}
if (r instanceof java.util.Date) {
MetaProperty p =
getMetaProperty(column); // In order to use the type declared by the developer
// and not the one returned by JDBC or the JPA engine
if (java.sql.Time.class.isAssignableFrom(p.getType())) {
return DateFormat.getTimeInstance(DateFormat.SHORT, locale).format(r);
}
if (java.sql.Timestamp.class.isAssignableFrom(p.getType())) {
DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
return dateFormat.format(r);
}
return DateFormat.getDateInstance(DateFormat.SHORT, locale).format(r);
}
if (r instanceof BigDecimal) {
return formatBigDecimal(r, locale);
}
return r;
}
private Object getValueWithWebEditorsFormat(int row, int column) {
Object r = original.getValueAt(row, column);
MetaProperty metaProperty = getMetaProperty(column);
String result = WebEditors.format(this.request, metaProperty, r, null, "", true);
if (isHtml(result)) { // this avoids that the report shows html content
result = WebEditors.format(this.request, metaProperty, r, null, "", false);
}
return result;
}
public void setValueAt(Object value, int row, int column) {
original.setValueAt(value, row, column);
}
public void addTableModelListener(TableModelListener l) {
original.addTableModelListener(l);
}
public void removeTableModelListener(TableModelListener l) {
original.removeTableModelListener(l);
}
private boolean isHtml(String value) {
return value.matches("<.*>");
}
public boolean isFormat() {
return format;
}
public void setFormat(boolean format) {
this.format = format;
}
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
Locales.setCurrent(request);
if (Users.getCurrent() == null) { // for a bug in websphere portal 5.1 with Domino LDAP
Users.setCurrent((String) request.getSession().getAttribute("xava.user"));
}
request.getParameter("application"); // for a bug in websphere 5.1
request.getParameter("module"); // for a bug in websphere 5.1
Tab tab = (Tab) request.getSession().getAttribute("xava_reportTab");
int[] selectedRowsNumber =
(int[]) request.getSession().getAttribute("xava_selectedRowsReportTab");
Map[] selectedKeys = (Map[]) request.getSession().getAttribute("xava_selectedKeysReportTab");
int[] selectedRows = getSelectedRows(selectedRowsNumber, selectedKeys, tab);
request.getSession().removeAttribute("xava_selectedRowsReportTab");
Integer columnCountLimit =
(Integer) request.getSession().getAttribute("xava_columnCountLimitReportTab");
request.getSession().removeAttribute("xava_columnCountLimitReportTab");
setDefaultSchema(request);
String user = (String) request.getSession().getAttribute("xava_user");
request.getSession().removeAttribute("xava_user");
Users.setCurrent(user);
String uri = request.getRequestURI();
if (uri.endsWith(".pdf")) {
InputStream is;
JRDataSource ds;
Map parameters = new HashMap();
synchronized (tab) {
tab.setRequest(request);
parameters.put("Title", tab.getTitle());
parameters.put("Organization", getOrganization());
parameters.put("Date", getCurrentDate());
for (String totalProperty : tab.getTotalPropertiesNames()) {
parameters.put(totalProperty + "__TOTAL__", getTotal(request, tab, totalProperty));
}
TableModel tableModel = getTableModel(request, tab, selectedRows, false, true, null);
tableModel.getValueAt(0, 0);
if (tableModel.getRowCount() == 0) {
generateNoRowsPage(response);
return;
}
is = getReport(request, response, tab, tableModel, columnCountLimit);
ds = new JRTableModelDataSource(tableModel);
}
JasperPrint jprint = JasperFillManager.fillReport(is, parameters, ds);
response.setContentType("application/pdf");
response.setHeader(
"Content-Disposition", "inline; filename=\"" + getFileName(tab) + ".pdf\"");
JasperExportManager.exportReportToPdfStream(jprint, response.getOutputStream());
} else if (uri.endsWith(".csv")) {
String csvEncoding = XavaPreferences.getInstance().getCSVEncoding();
if (!Is.emptyString(csvEncoding)) {
response.setCharacterEncoding(csvEncoding);
}
response.setContentType("text/x-csv");
response.setHeader(
"Content-Disposition", "inline; filename=\"" + getFileName(tab) + ".csv\"");
synchronized (tab) {
tab.setRequest(request);
response
.getWriter()
.print(
TableModels.toCSV(
getTableModel(request, tab, selectedRows, true, false, columnCountLimit)));
}
} else {
throw new ServletException(
XavaResources.getString("report_type_not_supported", "", ".pdf .csv"));
}
} catch (Exception ex) {
log.error(ex.getMessage(), ex);
throw new ServletException(XavaResources.getString("report_error"));
} finally {
request.getSession().removeAttribute("xava_reportTab");
}
}
private void generateNoRowsPage(HttpServletResponse response) throws Exception {
response.setContentType("text/html");
response.getWriter().println("<html><head><title>");
response.getWriter().println(XavaResources.getString("no_rows_report_message_title"));
response
.getWriter()
.println(
"</title></head><body style='font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;'>");
response.getWriter().println("<h1 style='font-size:22px;'>");
response.getWriter().println(XavaResources.getString("no_rows_report_message_title"));
response.getWriter().println("</h1>");
response.getWriter().println("<p style='font-size:16px;'>");
response.getWriter().println(XavaResources.getString("no_rows_report_message_detail"));
response.getWriter().println("</p></body></html>");
}
private String getCurrentDate() {
return java.text.DateFormat.getDateInstance(DateFormat.MEDIUM, Locales.getCurrent())
.format(new java.util.Date());
}
private String getFileName(Tab tab) {
String now = new SimpleDateFormat("yyyyMMdd_HHmm").format(new Date());
return tab.getTitle() + " " + now;
}
private Object getTotal(HttpServletRequest request, Tab tab, String totalProperty) {
Object total = tab.getTotal(totalProperty);
return WebEditors.format(
request, tab.getMetaProperty(totalProperty), total, new Messages(), null, true);
}
private void setDefaultSchema(HttpServletRequest request) {
String hibernateDefaultSchemaTab =
(String) request.getSession().getAttribute("xava_hibernateDefaultSchemaTab");
if (hibernateDefaultSchemaTab != null) {
request.getSession().removeAttribute("xava_hibernateDefaultSchemaTab");
XHibernate.setDefaultSchema(hibernateDefaultSchemaTab);
}
String jpaDefaultSchemaTab =
(String) request.getSession().getAttribute("xava_jpaDefaultSchemaTab");
if (jpaDefaultSchemaTab != null) {
request.getSession().removeAttribute("xava_jpaDefaultSchemaTab");
XPersistence.setDefaultSchema(jpaDefaultSchemaTab);
}
}
protected String getOrganization() throws MissingResourceException, XavaException {
return ReportParametersProviderFactory.getInstance().getOrganization();
}
private InputStream getReport(
HttpServletRequest request,
HttpServletResponse response,
Tab tab,
TableModel tableModel,
Integer columnCountLimit)
throws ServletException, IOException {
StringBuffer suri = new StringBuffer();
suri.append("/xava/jasperReport");
suri.append("?language=");
suri.append(Locales.getCurrent().getLanguage());
suri.append("&widths=");
suri.append(Arrays.toString(getWidths(tableModel)));
if (columnCountLimit != null) {
suri.append("&columnCountLimit=");
suri.append(columnCountLimit);
}
response.setCharacterEncoding(XSystem.getEncoding());
return Servlets.getURIAsStream(request, response, suri.toString());
}
private int[] getWidths(TableModel tableModel) {
int[] widths = new int[tableModel.getColumnCount()];
for (int r = 0;
r < Math.min(tableModel.getRowCount(), 500);
r++) { // 500 is not for performance, but for using only a sample of data with huge table
for (int c = 0; c < tableModel.getColumnCount(); c++) {
Object o = tableModel.getValueAt(r, c);
if (o instanceof String) {
String s = ((String) o).trim();
if (s.length() > widths[c]) widths[c] = s.length();
}
}
}
return widths;
}
private TableModel getTableModel(
HttpServletRequest request,
Tab tab,
int[] selectedRows,
boolean labelAsHeader,
boolean format,
Integer columnCountLimit)
throws Exception {
TableModel data = null;
if (selectedRows != null && selectedRows.length > 0) {
data = new SelectedRowsXTableModel(tab.getTableModel(), selectedRows);
} else {
data = tab.getAllDataTableModel();
}
return new TableModelDecorator(
request,
data,
tab.getMetaProperties(),
Locales.getCurrent(),
labelAsHeader,
format,
columnCountLimit);
}
private static Object formatBigDecimal(Object number, Locale locale) {
NumberFormat nf = NumberFormat.getNumberInstance(locale);
nf.setMinimumFractionDigits(2);
return nf.format(number);
}
private int[] getSelectedRows(int[] selectedRowsNumber, Map[] selectedRowsKeys, Tab tab) {
if (selectedRowsKeys == null || selectedRowsKeys.length == 0) return new int[0];
// selectedRowsNumber is the most performant so we use it when possible
else if (selectedRowsNumber.length == selectedRowsKeys.length) return selectedRowsNumber;
else {
// find the rows from the selectedKeys
// This has a poor performance, but it covers the case when the selected
// rows are not loaded for the tab, something that can occurs if the user
// select rows and afterwards reorder the list.
try {
int[] s = new int[selectedRowsKeys.length];
List selectedKeys = Arrays.asList(selectedRowsKeys);
int end = tab.getTableModel().getTotalSize();
int x = 0;
for (int i = 0; i < end; i++) {
Map key = (Map) tab.getTableModel().getObjectAt(i);
if (selectedKeys.contains(key)) {
s[x] = i;
x++;
}
}
return s;
} catch (Exception ex) {
log.warn(XavaResources.getString("fails_selected"), ex);
throw new XavaException("fails_selected");
}
}
}
}