public void handleContinuation(String continuationId, List params, Redirector redirector)
throws Exception {
WebContinuation wk =
this.continuationsMgr.lookupWebContinuation(continuationId, getInterpreterID());
if (wk == null) {
// Throw an InvalidContinuationException to be handled inside the
// <map:handle-errors> sitemap element.
throw new InvalidContinuationException(
"The continuation ID " + continuationId + " is invalid.");
}
AppleController app = (AppleController) wk.getContinuation();
getLogger().debug("found apple from continuation: " + app);
// TODO access control checks? exception to be thrown for illegal access?
processApple(params, redirector, app, wk);
}
public void callFunction(String className, List params, Redirector redirector) throws Exception {
AppleController app = instantiateController(className);
WebContinuation wk = null;
if (!(app instanceof StatelessAppleController)) {
wk = this.continuationsMgr.createWebContinuation(app, null, 0, getInterpreterID(), this);
if (getLogger().isDebugEnabled())
getLogger().debug("Instantiated a stateful apple, continuationid = " + wk.getId());
}
DefaultContext appleContext = new DefaultContext(avalonContext);
if (wk != null) {
appleContext.put("continuation-id", wk.getId());
}
// Use the current sitemap's service manager for components
ServiceManager sitemapManager;
try {
sitemapManager =
(ServiceManager) avalonContext.get(ContextHelper.CONTEXT_SITEMAP_SERVICE_MANAGER);
} catch (ContextException e) {
throw new CascadingRuntimeException("Cannot get sitemap service manager", e);
}
LifecycleHelper.setupComponent(
app,
getLogger(),
appleContext,
sitemapManager,
new WrapperComponentManager(sitemapManager),
null,
null,
true);
processApple(params, redirector, app, wk);
}
private void processApple(
List params, Redirector redirector, AppleController app, WebContinuation wk)
throws Exception {
Request cocoonRequest = ContextHelper.getRequest(this.avalonContext);
AppleRequest req = new DefaultAppleRequest(params, cocoonRequest);
Response cocoonResponse = ContextHelper.getResponse(this.avalonContext);
DefaultAppleResponse res = new DefaultAppleResponse(cocoonResponse);
try {
app.process(req, res);
} finally {
if (wk == null) {
// dispose stateless apple immediatelly
if (app instanceof Disposable) {
try {
((Disposable) app).dispose();
} catch (Exception e) {
getLogger().error("Error disposing Apple instance.", e);
}
}
}
}
if (res.isRedirect()) {
redirector.redirect(false, res.getURI());
} else {
String uri = res.getURI();
if (getLogger().isDebugEnabled()) {
getLogger()
.debug(
"Apple forwards to "
+ uri
+ " with bizdata= "
+ res.getData()
+ (wk != null
? " and continuationid= " + wk.getId()
: " without continuationid"));
}
// Note: it is ok for wk to be null
this.forwardTo(uri, res.getData(), wk, redirector);
}
// TODO allow for AppleResponse to set some boolean saying the use case
// is completed and the continuation can be invalidated ?
}
public void disposeContinuation(WebContinuation webContinuation) {
AppleController app = (AppleController) webContinuation.getContinuation();
if (app instanceof Disposable) {
((Disposable) app).dispose();
}
}