@Override
public void getResource(final HttpServletRequest request, final HttpServletResponse response)
throws ServletException, IOException {
ServletLifecycle.beginRequest(request);
try {
ServletContexts.instance().setRequest(request);
ConversationPropagation.instance().restoreConversationId(request.getParameterMap());
Manager.instance().restoreConversation();
ServletLifecycle.resumeConversation(request);
final ReportResult reportResult =
(ReportResult) Contexts.getConversationContext().get("user.reportResult");
if (reportResult != null) {
response.setContentType("text/csv");
response.setCharacterEncoding("UTF-8");
final PrintWriter out = response.getWriter();
boolean first = true;
for (final ColumnDefinition column : reportResult.getGroupByColumns()) {
if (!first) {
out.print(DELIM);
}
out.print(toCSVString(column.getHeader()));
first = false;
}
for (final ColumnDefinition column : reportResult.getColumns()) {
if (!first) {
out.print(DELIM);
}
out.print(toCSVString(column.getHeader()));
first = false;
}
out.println();
for (final ReportResultGroup group : reportResult.getGroups()) {
writeReportGroup(0, group, out);
}
for (final ReportRow row : reportResult.getRows()) {
writeReportRow(row, reportResult.getColumns(), out);
}
out.close();
}
} finally {
ServletLifecycle.endRequest(request);
}
}
public String getRequestConversationId(Map parameters) {
return ConversationPropagation.getRequestParameterValue(parameters, getParameterName());
}