public static ActionDefinition reverse(String action, Map<String, Object> args) {
String encoding =
Http.Response.current() == null
? Play.defaultWebEncoding
: Http.Response.current().encoding;
if (action.startsWith("controllers.")) {
action = action.substring(12);
}
Map<String, Object> argsbackup = new HashMap<String, Object>(args);
// Add routeArgs
if (Scope.RouteArgs.current() != null) {
for (String key : Scope.RouteArgs.current().data.keySet()) {
if (!args.containsKey(key)) {
args.put(key, Scope.RouteArgs.current().data.get(key));
}
}
}
for (Route route : routes) {
if (route.actionPattern != null) {
Matcher matcher = route.actionPattern.matcher(action);
if (matcher.matches()) {
for (String group : route.actionArgs) {
String v = matcher.group(group);
if (v == null) {
continue;
}
args.put(group, v.toLowerCase());
}
List<String> inPathArgs = new ArrayList<String>(16);
boolean allRequiredArgsAreHere = true;
// les noms de parametres matchent ils ?
for (Route.Arg arg : route.args) {
inPathArgs.add(arg.name);
Object value = args.get(arg.name);
if (value == null) {
// This is a hack for reverting on hostname that are a regex expression.
// See [#344] for more into. This is not optimal and should retough. However,
// it allows us to do things like {(.*}}.domain.com
String host = route.host.replaceAll("\\{", "").replaceAll("\\}", "");
if (host.equals(arg.name) || host.matches(arg.name)) {
args.remove(arg.name);
route.host = Http.Request.current() == null ? "" : Http.Request.current().domain;
break;
} else {
allRequiredArgsAreHere = false;
break;
}
} else {
if (value instanceof List<?>) {
@SuppressWarnings("unchecked")
List<Object> l = (List<Object>) value;
value = l.get(0);
}
if (!value.toString().startsWith(":") && !arg.constraint.matches(value.toString())) {
allRequiredArgsAreHere = false;
break;
}
}
}
// les parametres codes en dur dans la route matchent-ils ?
for (String staticKey : route.staticArgs.keySet()) {
if (staticKey.equals("format")) {
if (!(Http.Request.current() == null ? "" : Http.Request.current().format)
.equals(route.staticArgs.get("format"))) {
allRequiredArgsAreHere = false;
break;
}
continue; // format is a special key
}
if (!args.containsKey(staticKey)
|| (args.get(staticKey) == null)
|| !args.get(staticKey).toString().equals(route.staticArgs.get(staticKey))) {
allRequiredArgsAreHere = false;
break;
}
}
if (allRequiredArgsAreHere) {
StringBuilder queryString = new StringBuilder();
String path = route.path;
String host = route.host;
if (path.endsWith("/?")) {
path = path.substring(0, path.length() - 2);
}
for (Map.Entry<String, Object> entry : args.entrySet()) {
String key = entry.getKey();
Object value = entry.getValue();
if (inPathArgs.contains(key) && value != null) {
if (List.class.isAssignableFrom(value.getClass())) {
@SuppressWarnings("unchecked")
List<Object> vals = (List<Object>) value;
path =
path.replaceAll("\\{(<[^>]+>)?" + key + "\\}", vals.get(0).toString())
.replace("$", "\\$");
} else {
path =
path.replaceAll(
"\\{(<[^>]+>)?" + key + "\\}",
value
.toString()
.replace("$", "\\$")
.replace("%3A", ":")
.replace("%40", "@"));
host =
host.replaceAll(
"\\{(<[^>]+>)?" + key + "\\}",
value
.toString()
.replace("$", "\\$")
.replace("%3A", ":")
.replace("%40", "@"));
}
} else if (route.staticArgs.containsKey(key)) {
// Do nothing -> The key is static
} else if (Scope.RouteArgs.current() != null
&& Scope.RouteArgs.current().data.containsKey(key)) {
// Do nothing -> The key is provided in RouteArgs and not used (see #447)
} else if (value != null) {
if (List.class.isAssignableFrom(value.getClass())) {
@SuppressWarnings("unchecked")
List<Object> vals = (List<Object>) value;
for (Object object : vals) {
try {
queryString.append(URLEncoder.encode(key, encoding));
queryString.append("=");
if (object.toString().startsWith(":")) {
queryString.append(object.toString());
} else {
queryString.append(URLEncoder.encode(object.toString() + "", encoding));
}
queryString.append("&");
} catch (UnsupportedEncodingException ex) {
}
}
} else if (value.getClass().equals(Default.class)) {
// Skip defaults in queryString
} else {
try {
queryString.append(URLEncoder.encode(key, encoding));
queryString.append("=");
if (value.toString().startsWith(":")) {
queryString.append(value.toString());
} else {
queryString.append(URLEncoder.encode(value.toString() + "", encoding));
}
queryString.append("&");
} catch (UnsupportedEncodingException ex) {
}
}
}
}
String qs = queryString.toString();
if (qs.endsWith("&")) {
qs = qs.substring(0, qs.length() - 1);
}
ActionDefinition actionDefinition = new ActionDefinition();
actionDefinition.url = qs.length() == 0 ? path : path + "?" + qs;
actionDefinition.method =
route.method == null || route.method.equals("*")
? "GET"
: route.method.toUpperCase();
actionDefinition.star = "*".equals(route.method);
actionDefinition.action = action;
actionDefinition.args = argsbackup;
actionDefinition.host = host;
return actionDefinition;
}
}
}
}
throw new NoRouteFoundException(action, args);
}
public static void invoke(Http.Request request, Http.Response response) {
Monitor monitor = null;
try {
resolve(request, response);
Method actionMethod = request.invokedMethod;
// 1. Prepare request params
Scope.Params.current().__mergeWith(request.routeArgs);
// add parameters from the URI query string
String encoding = Http.Request.current().encoding;
Scope.Params.current()
._mergeWith(
UrlEncodedParser.parseQueryString(
new ByteArrayInputStream(request.querystring.getBytes(encoding))));
// 2. Easy debugging ...
if (Play.mode == Play.Mode.DEV) {
Class<Controller> cclass = Controller.class;
cclass.getDeclaredField("params").set(null, Scope.Params.current());
cclass.getDeclaredField("request").set(null, Http.Request.current());
cclass.getDeclaredField("response").set(null, Http.Response.current());
cclass.getDeclaredField("session").set(null, Scope.Session.current());
cclass.getDeclaredField("flash").set(null, Scope.Flash.current());
cclass.getDeclaredField("renderArgs").set(null, Scope.RenderArgs.current());
cclass.getDeclaredField("routeArgs").set(null, Scope.RouteArgs.current());
cclass.getDeclaredField("validation").set(null, Validation.current());
}
ControllerInstrumentation.stopActionCall();
Play.pluginCollection.beforeActionInvocation(actionMethod);
// Monitoring
monitor = MonitorFactory.start(request.action + "()");
// 3. Invoke the action
try {
// @Before
handleBefores(request);
// Action
Result actionResult = null;
String cacheKey = null;
// Check the cache (only for GET or HEAD)
if ((request.method.equals("GET") || request.method.equals("HEAD"))
&& actionMethod.isAnnotationPresent(CacheFor.class)) {
cacheKey = actionMethod.getAnnotation(CacheFor.class).id();
if ("".equals(cacheKey)) {
cacheKey = "urlcache:" + request.url + request.querystring;
}
actionResult = (Result) play.cache.Cache.get(cacheKey);
}
if (actionResult == null) {
ControllerInstrumentation.initActionCall();
try {
inferResult(invokeControllerMethod(actionMethod));
} catch (Result result) {
actionResult = result;
// Cache it if needed
if (cacheKey != null) {
play.cache.Cache.set(
cacheKey, actionResult, actionMethod.getAnnotation(CacheFor.class).value());
}
} catch (InvocationTargetException ex) {
// It's a Result ? (expected)
if (ex.getTargetException() instanceof Result) {
actionResult = (Result) ex.getTargetException();
// Cache it if needed
if (cacheKey != null) {
play.cache.Cache.set(
cacheKey, actionResult, actionMethod.getAnnotation(CacheFor.class).value());
}
} else {
// @Catch
Object[] args = new Object[] {ex.getTargetException()};
List<Method> catches =
Java.findAllAnnotatedMethods(Controller.getControllerClass(), Catch.class);
ControllerInstrumentation.stopActionCall();
for (Method mCatch : catches) {
Class[] exceptions = mCatch.getAnnotation(Catch.class).value();
if (exceptions.length == 0) {
exceptions = new Class[] {Exception.class};
}
for (Class exception : exceptions) {
if (exception.isInstance(args[0])) {
mCatch.setAccessible(true);
inferResult(invokeControllerMethod(mCatch, args));
break;
}
}
}
throw ex;
}
}
}
// @After
handleAfters(request);
monitor.stop();
monitor = null;
// OK, re-throw the original action result
if (actionResult != null) {
throw actionResult;
}
throw new NoResult();
} catch (IllegalAccessException ex) {
throw ex;
} catch (IllegalArgumentException ex) {
throw ex;
} catch (InvocationTargetException ex) {
// It's a Result ? (expected)
if (ex.getTargetException() instanceof Result) {
throw (Result) ex.getTargetException();
}
// Re-throw the enclosed exception
if (ex.getTargetException() instanceof PlayException) {
throw (PlayException) ex.getTargetException();
}
StackTraceElement element =
PlayException.getInterestingStackTraceElement(ex.getTargetException());
if (element != null) {
throw new JavaExecutionException(
Play.classes.getApplicationClass(element.getClassName()),
element.getLineNumber(),
ex.getTargetException());
}
throw new JavaExecutionException(Http.Request.current().action, ex);
}
} catch (Result result) {
Play.pluginCollection.onActionInvocationResult(result);
// OK there is a result to apply
// Save session & flash scope now
Scope.Session.current().save();
Scope.Flash.current().save();
result.apply(request, response);
Play.pluginCollection.afterActionInvocation();
// @Finally
handleFinallies(request, null);
} catch (PlayException e) {
handleFinallies(request, e);
throw e;
} catch (Throwable e) {
handleFinallies(request, e);
throw new UnexpectedException(e);
} finally {
Play.pluginCollection.onActionInvocationFinally();
if (monitor != null) {
monitor.stop();
}
}
}