/***
* Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package br.com.caelum.vraptor.http;
import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import br.com.caelum.vraptor.controller.ControllerMethod;
import br.com.caelum.vraptor.controller.HttpMethod;
import br.com.caelum.vraptor.core.RequestInfo;
import br.com.caelum.vraptor.http.route.MethodNotAllowedException;
import br.com.caelum.vraptor.http.route.Router;
/**
* Basic url to controller method translator.
*
* @author Guilherme Silveira
* @author Leonardo Bessa
*/
@ApplicationScoped
public class DefaultControllerTranslator implements UrlToControllerTranslator {
private final Logger logger = LoggerFactory.getLogger(DefaultControllerTranslator.class);
private final Router router;
/**
* @deprecated CDI eyes only
*/
protected DefaultControllerTranslator() {
this(null);
}
@Inject
public DefaultControllerTranslator(Router router) {
this.router = router;
}
@Override
public ControllerMethod translate(RequestInfo info) {
MutableRequest request = info.getRequest();
String controllerName = info.getRequestedUri();
logger.debug("trying to access {}", controllerName);
HttpMethod method = getHttpMethod(request, controllerName);
ControllerMethod controller = router.parse(controllerName, method, request);
logger.debug("found controller {}", controller);
return controller;
}
private HttpMethod getHttpMethod(MutableRequest request, String controllerName) {
try {
return HttpMethod.of(request);
} catch (IllegalArgumentException e) {
throw new MethodNotAllowedException(router.allowedMethodsFor(controllerName), request.getMethod());
}
}
}