// cache the template...
protected Transformer getTransformer(Presentation presentation, Map request)
throws PersistenceException {
Id renderer = presentation.getTemplate().getRenderer();
TransformerWrapper wrapper = (TransformerWrapper) presentationTemplateCache.get(renderer);
if (wrapper == null) {
wrapper = new TransformerWrapper();
wrapper.modified = 0;
}
Node xsl = getPresentationManager().getNode(renderer);
if (xsl.getTechnicalMetadata().getLastModified().getTime() > wrapper.modified) {
try {
wrapper.transformer =
TransformerFactory.newInstance().newTransformer(new StreamSource(xsl.getInputStream()));
wrapper.modified = xsl.getTechnicalMetadata().getLastModified().getTime();
} catch (TransformerConfigurationException e) {
throw new OspException(e);
}
}
wrapper.transformer.clearParameters();
// send request params in as transform params
for (Iterator i = request.keySet().iterator(); i.hasNext(); ) {
String paramName = (String) i.next();
wrapper.transformer.setParameter(paramName, request.get(paramName));
}
presentationTemplateCache.put(renderer, wrapper);
return wrapper.transformer;
}
public ModelAndView handleRequest(
Object requestModel, Map request, Map session, Map application, Errors errors) {
Presentation pres = (Presentation) requestModel;
if (pres.getSecretExportKey() == null) {
if (!pres.getIsPublic()) {
if (getAuthManager().getAgent().isInRole(Agent.ROLE_ANONYMOUS)) {
try {
Site site = SiteService.getSite(pres.getSiteId());
ToolConfiguration toolConfig =
site.getToolForCommonId(PresentationFunctionConstants.PRES_TOOL_ID);
String placement = toolConfig.getId();
ToolSession ts = SessionManager.getCurrentSession().getToolSession(placement);
SessionManager.setCurrentToolSession(ts);
SessionManager.getCurrentSession()
.setAttribute(Tool.HELPER_DONE_URL, pres.getExternalUri());
Map model = new Hashtable();
model.put("sakai.tool.placement.id", placement);
return new ModelAndView("authnRedirect", model);
} catch (IdUnusedException e) {
logger.error("", e);
}
} else {
getAuthzManager()
.checkPermission(PresentationFunctionConstants.VIEW_PRESENTATION, pres.getId());
}
}
if (pres.isExpired()
&& !pres.getOwner().getId().equals(getAuthManager().getAgent().getId())) {
return new ModelAndView("expired");
}
}
if (!pres.isPreview()) {
logViewedPresentation(pres);
}
Hashtable model = new Hashtable();
try {
model.put("presentation", pres);
Document doc = null;
if (pres.getPresentationType().equals(Presentation.TEMPLATE_TYPE))
doc = getPresentationManager().createDocument(pres);
else {
String page = (String) request.get("page");
if (pres.isPreview()) {
doc = getPresentationManager().getPresentationPreviewLayoutAsXml(pres, page);
} else {
doc = getPresentationManager().getPresentationLayoutAsXml(pres, page);
}
}
Site site = SiteService.getSite(pres.getSiteId());
getAuthzManager().pushAuthzGroups(site.getId());
ToolConfiguration toolConfig =
site.getToolForCommonId(PresentationFunctionConstants.PRES_TOOL_ID);
String placement = toolConfig.getId();
model.put("placementId", placement);
if (doc != null) model.put("document", doc);
else return new ModelAndView("notFound", model);
model.put("renderer", getTransformer(pres, request));
model.put("uriResolver", getUriResolver());
if (!getAuthManager().getAgent().isInRole(Agent.ROLE_ANONYMOUS)) {
model.put("currentAgent", getAuthManager().getAgent());
}
if (!pres.isPreview()) {
model.put(
"comments",
getPresentationManager()
.getPresentationComments(pres.getId(), getAuthManager().getAgent()));
boolean allowComments =
getAuthzManager()
.isAuthorized(PresentationFunctionConstants.COMMENT_PRESENTATION, pres.getId());
model.put("allowComments", allowComments);
} else {
model.put("allowComments", pres.isAllowComments());
}
if (request.get(BindException.ERROR_KEY_PREFIX + "newComment") == null) {
request.put(
BindException.ERROR_KEY_PREFIX + "newComment",
new BindException(new PresentationComment(), "newComment"));
}
} catch (PersistenceException e) {
logger.error("", e);
throw new OspException(e);
} catch (IdUnusedException e) {
logger.error("", e);
}
boolean headers = pres.getTemplate().isIncludeHeaderAndFooter();
String viewName = "withoutHeader";
if (headers) {
if (ToolManager.getCurrentPlacement() == null) {
viewName = "withHeaderStandalone";
} else {
viewName = "withHeader";
}
}
return new ModelAndView(viewName, model);
}