/** Tests resource reference getting/setting. */
public void testResourceRef() throws Exception {
final Request request = getRequest();
String uri = "http://www.restlet.org/";
Reference reference = getReference(uri);
request.setResourceRef(uri);
assertEquals(reference, request.getResourceRef());
uri = "http://www.restlet.org/something";
reference = getReference(uri);
request.setResourceRef(reference);
assertEquals(reference, request.getResourceRef());
}
/**
* Creates an uniform call.
*
* @param jdbcURI The database's JDBC URI (ex: jdbc:mysql://[hostname]/[database]).
* @param request The request to send (valid XML request).
*/
public static Request create(String jdbcURI, Representation request) {
Request result = new Request();
result.getClientInfo().setAgent(Engine.VERSION_HEADER);
result.setMethod(Method.POST);
result.setResourceRef(jdbcURI);
result.setEntity(request);
return result;
}
@Override
public void handle(Request request, Response response) {
// Update URI of the incoming request
request.setResourceRef("http://localhost:8182/");
// Create a basic HTTP client
Client client = new Client(Protocol.HTTP);
// Let the client handle the request and response
client.handle(request, response);
}
private Request createRequest(Reference reference, Representation representation) {
if (reference != null) {
Request request = new Request();
request.setResourceRef(reference);
if (representation != null) {
request.setEntity(representation);
}
return request;
}
throw new RepositoryException("Reference object is null!");
}
/**
* Redirects a given call on the server-side to a next Restlet with a given target reference. In
* the default implementation, the request HTTP headers, stored in the request's attributes, are
* removed before dispatching. After dispatching, the response HTTP headers are also removed to
* prevent conflicts with the main call.
*
* @param next The next Restlet to forward the call to.
* @param targetRef The target reference with URI variables resolved.
* @param request The request to handle.
* @param response The response to update.
*/
protected void serverRedirect(
Restlet next, Reference targetRef, Request request, Response response) {
if (next == null) {
getLogger().warning("No next Restlet provided for server redirection to " + targetRef);
} else {
// Save the base URI if it exists as we might need it for
// redirections
Reference resourceRef = request.getResourceRef();
Reference baseRef = resourceRef.getBaseRef();
// Reset the protocol and let the dispatcher handle the protocol
request.setProtocol(null);
// Update the request to cleanly go to the target URI
request.setResourceRef(targetRef);
request.getAttributes().remove(HeaderConstants.ATTRIBUTE_HEADERS);
next.handle(request, response);
// Allow for response rewriting and clean the headers
response.setEntity(rewrite(response.getEntity()));
response.getAttributes().remove(HeaderConstants.ATTRIBUTE_HEADERS);
request.setResourceRef(resourceRef);
// In case of redirection, we may have to rewrite the redirect URI
if (response.getLocationRef() != null) {
Template rt = new Template(this.targetTemplate);
rt.setLogger(getLogger());
int matched = rt.parse(response.getLocationRef().toString(), request);
if (matched > 0) {
String remainingPart = (String) request.getAttributes().get("rr");
if (remainingPart != null) {
response.setLocationRef(baseRef.toString() + remainingPart);
}
}
}
}
}
/** Tests context's base reference getting/setting. */
public void testBaseRef() throws Exception {
final Request request = getRequest();
final String resourceRefURI = "http://www.restlet.org/path/to/resource";
final Reference resourceRef = getReference(resourceRefURI);
request.setResourceRef(resourceRefURI);
assertEquals(resourceRef, request.getResourceRef());
String uri = "http://www.restlet.org/path";
Reference reference = getReference(uri);
request.getResourceRef().setBaseRef(uri);
assertEquals(uri, request.getResourceRef().getBaseRef().toString());
assertEquals(reference, request.getResourceRef().getBaseRef());
uri = "http://www.restlet.org/path/to";
reference = getReference(uri);
request.getResourceRef().setBaseRef(uri);
assertEquals(uri, request.getResourceRef().getBaseRef().toString());
assertEquals(reference, request.getResourceRef().getBaseRef());
}
public List<Breadcrumb> getBreadcrumbList(Resource resource) {
List<Breadcrumb> breadcrumbs = new ArrayList<Breadcrumb>();
breadcrumbs.add(new Breadcrumb("/", null, "<i class='icon-home'></i>"));
Reference reference = resource.getReference();
SkysailApplication application = (SkysailApplication) resource.getApplication();
RouteList routes = application.getRoutes();
List<String> segments = getCleanedSegments(reference);
Reference rootRef = resource.getRootRef();
if (!(resource.getApplication() instanceof DefaultSkysailApplication)) {
breadcrumbs.add(
new Breadcrumb(
segments.size() <= 1 ? null : rootRef.toString(),
null,
resource.getApplication().getName()));
}
String path = "";
Route match = null;
for (int i = 1; i < segments.size(); i++) {
path = path + "/" + segments.get(i);
Request request = resource.getRequest();
request.setResourceRef(new Reference(path));
Route best = routes.getBest(request, resource.getResponse(), 0.5f);
if (best != match) {
match = best;
if (i < segments.size() - 1) {
breadcrumbs.add(
new Breadcrumb(
"/" + resource.getApplication().getName() + path, null, segments.get(i)));
} else {
breadcrumbs.add(new Breadcrumb(null, null, segments.get(i)));
}
}
}
return breadcrumbs;
}
/**
* Handle the call and follow redirection for safe methods.
*
* @param request The request to send.
* @param response The response to update.
* @param references The references that caused a redirection to prevent infinite loops.
* @param retryAttempt The number of remaining attempts.
* @param next The next handler handling the call.
*/
private void handle(
Request request,
Response response,
List<Reference> references,
int retryAttempt,
Uniform next) {
if (next != null) {
// Actually handle the call
next.handle(request, response);
// Check for redirections
if (isFollowingRedirects()
&& response.getStatus().isRedirection()
&& (response.getLocationRef() != null)) {
boolean doRedirection = false;
if (request.getMethod().isSafe()) {
doRedirection = true;
} else {
if (Status.REDIRECTION_SEE_OTHER.equals(response.getStatus())) {
// The user agent is redirected using the GET method
request.setMethod(Method.GET);
request.setEntity(null);
doRedirection = true;
} else if (Status.REDIRECTION_USE_PROXY.equals(response.getStatus())) {
doRedirection = true;
}
}
if (doRedirection) {
Reference newTargetRef = response.getLocationRef();
if ((references != null) && references.contains(newTargetRef)) {
getLogger().warning("Infinite redirection loop detected with URI: " + newTargetRef);
} else if (request.getEntity() != null && !request.isEntityAvailable()) {
getLogger()
.warning(
"Unable to follow the redirection because the request entity isn't available anymore.");
} else {
if (references == null) {
references = new ArrayList<Reference>();
}
// Add to the list of redirection reference
// to prevent infinite loops
references.add(request.getResourceRef());
request.setResourceRef(newTargetRef);
handle(request, response, references, 0, next);
}
}
} else if (isRetryOnError()
&& response.getStatus().isRecoverableError()
&& request.getMethod().isIdempotent()
&& (retryAttempt < getRetryAttempts())
&& ((request.getEntity() == null) || request.getEntity().isAvailable())) {
getLogger()
.log(
Level.INFO,
"A recoverable error was detected ("
+ response.getStatus().getCode()
+ "), attempting again in "
+ getRetryDelay()
+ " ms.");
// Wait before attempting again
if (getRetryDelay() > 0) {
try {
Thread.sleep(getRetryDelay());
} catch (InterruptedException e) {
getLogger().log(Level.FINE, "Retry delay sleep was interrupted", e);
}
}
// Retry the call
handle(request, response, references, ++retryAttempt, next);
}
}
}
