@Override
public ViewOutput render(Object view, ViewTemplateLoader templateLoader) {
ViewMap viewMap = null;
if (view instanceof ViewMap) {
viewMap = (ViewMap) view;
} else if (view != null) {
viewMap = new ViewMap(view);
}
if (viewMap != null) {
Object delegateView = viewMap.get(DELEGATE_VIEW_KEY);
if (delegateView != null) {
ViewRenderer delegateViewRenderer = ViewRenderer.createRenderer(delegateView);
if (delegateViewRenderer != null) {
return delegateViewRenderer.render(delegateView, templateLoader);
}
}
}
return () -> null;
}
/**
* Called by the view. It displays the recipie given.
*
* @param recipe
*/
public void displayRecipe(Recipe recipe) {
view.render(recipe);
}
private void loadRecipiesList() {
view.render(recipeUseCases.getRecipes());
}
@Override
protected void doExecute(String finalLocation, ActionInvocation invocation) throws Exception {
if (LOG.isDebugEnabled()) {
LOG.debug("In doExecute. finalLocation: " + finalLocation + ", renderer: " + renderer);
}
OutputStream os = null;
try {
final ActionContext actionContext = invocation.getInvocationContext();
final HttpServletRequest request = (HttpServletRequest) actionContext.get(HTTP_REQUEST);
final HttpServletResponse response = (HttpServletResponse) actionContext.get(HTTP_RESPONSE);
final SimpleServletResponseWrapper responseWrapper =
new SimpleServletResponseWrapper(response);
final ServletContext servletContext = (ServletContext) actionContext.get(SERVLET_CONTEXT);
ViewRenderer viewRenderer;
if (renderer == null) {
viewRenderer = container.getInstance(ViewRenderer.class);
} else {
viewRenderer = container.getInstance(ViewRenderer.class, renderer);
}
if (viewRenderer == null) {
final String err =
"Cannot get an instance of ViewRenderer with the name '" + renderer + "'.";
LOG.error(err);
throw new AssertionError(err);
}
// render view
viewRenderer.render(
finalLocation,
request,
responseWrapper,
servletContext,
actionContext.getLocale(),
invocation.getStack(),
invocation.getAction());
// Set the content type
response.setContentType(PDF_MIME_TYPE);
// Set the content-disposition
if (contentDisposition != null) {
response.addHeader("Content-Disposition", conditionalParse(contentDisposition, invocation));
}
// Set the cache control headers if necessary
if (!allowCaching) {
response.addHeader("Pragma", "no-cache");
response.addHeader("Cache-Control", "no-cache");
}
if (LOG.isTraceEnabled()) {
LOG.trace("Content before parsing:\n" + responseWrapper.toString());
}
// parse response wrapper
final Document document = parseContent(responseWrapper.toString());
final Element head = document.head();
// add CSS from cssPathsSet parameter
if (cssPathsSet != null && !cssPathsSet.isEmpty()) {
for (String css : cssPathsSet) {
// remove leading slash
if (css.startsWith("\\")) {
css = css.substring(1);
}
head.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"" + css + "\" />");
}
}
// add style for font family that supports unicode
head.append(FONT_STYLE_TAG);
final String content = document.html();
if (LOG.isTraceEnabled()) {
LOG.trace("Content after parsing:\n" + content);
}
// put pdf stream into response
createPdfStream(content, findBaseUrl(request), response.getOutputStream());
} finally {
if (os != null) {
os.close();
}
}
}
