private void blockUnlessChangeOccurs(String sitemapname, String pageId) {
Sitemap sitemap = getSitemap(sitemapname);
if (sitemap != null) {
if (pageId.equals(sitemap.getName())) {
waitForChanges(sitemap.getChildren());
} else {
Widget pageWidget = itemUIRegistry.getWidget(sitemap, pageId);
if (pageWidget instanceof LinkableWidget) {
EList<Widget> children = itemUIRegistry.getChildren((LinkableWidget) pageWidget);
waitForChanges(children);
}
}
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String sitemapName = request.getParameter("sitemap");
String widgetId = request.getParameter("widgetId");
if (sitemapName == null) {
throw new ServletException("Parameter 'sitemap' must be provided!");
}
if (widgetId == null) {
throw new ServletException("Parameter 'widget' must be provided!");
}
String uriString = null;
Sitemap sitemap = (Sitemap) modelRepository.getModel(sitemapName);
if (sitemap != null) {
Widget widget = itemUIRegistry.getWidget(sitemap, widgetId);
if (widget instanceof Image) {
Image image = (Image) widget;
uriString = image.getUrl();
} else if (widget instanceof Video) {
Video video = (Video) widget;
uriString = video.getUrl();
} else {
if (widget == null) {
throw new ServletException("Widget '" + widgetId + "' could not be found!");
} else {
throw new ServletException(
"Widget type '" + widget.getClass().getName() + "' is not supported!");
}
}
} else {
throw new ServletException("Sitemap '" + sitemapName + "' could not be found!");
}
HttpClient httpClient = new HttpClient();
try {
// check if the uri uses credentials and configure the http client accordingly
URI uri = URI.create(uriString);
if (uri.getUserInfo() != null) {
String[] userInfo = uri.getUserInfo().split(":");
httpClient.getParams().setAuthenticationPreemptive(true);
Credentials creds = new UsernamePasswordCredentials(userInfo[0], userInfo[1]);
httpClient
.getState()
.setCredentials(
new AuthScope(uri.getHost(), uri.getPort(), AuthScope.ANY_REALM), creds);
}
} catch (IllegalArgumentException e) {
throw new ServletException("URI '" + uriString + "' is not valid: " + e.getMessage());
}
// do the client request
GetMethod method = new GetMethod(uriString);
httpClient.executeMethod(method);
// copy all headers
for (Header header : method.getResponseHeaders()) {
response.setHeader(header.getName(), header.getValue());
}
// now copy/stream the body content
IOUtils.copy(method.getResponseBodyAsStream(), response.getOutputStream());
method.releaseConnection();
}
private PageDTO getPageBean(String sitemapName, String pageId, URI uri, Locale locale) {
Sitemap sitemap = getSitemap(sitemapName);
if (sitemap != null) {
if (pageId.equals(sitemap.getName())) {
return createPageBean(
sitemapName,
sitemap.getLabel(),
sitemap.getIcon(),
sitemap.getName(),
sitemap.getChildren(),
false,
isLeaf(sitemap.getChildren()),
uri,
locale);
} else {
Widget pageWidget = itemUIRegistry.getWidget(sitemap, pageId);
if (pageWidget instanceof LinkableWidget) {
EList<Widget> children = itemUIRegistry.getChildren((LinkableWidget) pageWidget);
PageDTO pageBean =
createPageBean(
sitemapName,
itemUIRegistry.getLabel(pageWidget),
itemUIRegistry.getCategory(pageWidget),
pageId,
children,
false,
isLeaf(children),
uri,
locale);
EObject parentPage = pageWidget.eContainer();
while (parentPage instanceof Frame) {
parentPage = parentPage.eContainer();
}
if (parentPage instanceof Widget) {
String parentId = itemUIRegistry.getWidgetId((Widget) parentPage);
pageBean.parent = getPageBean(sitemapName, parentId, uri, locale);
pageBean.parent.widgets = null;
pageBean.parent.parent = null;
} else if (parentPage instanceof Sitemap) {
pageBean.parent = getPageBean(sitemapName, sitemap.getName(), uri, locale);
pageBean.parent.widgets = null;
}
return pageBean;
} else {
if (logger.isDebugEnabled()) {
if (pageWidget == null) {
logger.debug(
"Received HTTP GET request at '{}' for the unknown page id '{}'.", uri, pageId);
} else {
logger.debug(
"Received HTTP GET request at '{}' for the page id '{}'. "
+ "This id refers to a non-linkable widget and is therefore no valid page id.",
uri,
pageId);
}
}
throw new WebApplicationException(404);
}
}
} else {
logger.info(
"Received HTTP GET request at '{}' for the unknown sitemap '{}'.", uri, sitemapName);
throw new WebApplicationException(404);
}
}