/***
* 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.view;
import static br.com.caelum.vraptor.view.Results.representation;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.EnumSet;
import java.util.List;
import javax.enterprise.context.RequestScoped;
import javax.inject.Inject;
import javax.servlet.http.HttpServletResponse;
import br.com.caelum.vraptor.Result;
import br.com.caelum.vraptor.config.Configuration;
import br.com.caelum.vraptor.controller.HttpMethod;
import br.com.caelum.vraptor.http.route.Router;
import br.com.caelum.vraptor.proxy.MethodInvocation;
import br.com.caelum.vraptor.proxy.Proxifier;
import br.com.caelum.vraptor.proxy.SuperMethod;
import com.google.common.base.Joiner;
/**
* Allows header related results.
*
* @author guilherme silveira
* @since 3.0.3
*/
@RequestScoped
public class DefaultStatus implements Status {
private final HttpServletResponse response;
private final Result result;
private final Configuration config;
private final Router router;
private final Proxifier proxifier;
/**
* @deprecated CDI eyes only
*/
protected DefaultStatus() {
this(null, null, null, null, null);
}
@Inject
public DefaultStatus(HttpServletResponse response, Result result, Configuration config,
Proxifier proxifier, Router router) {
this.response = response;
this.result = result;
this.config = config;
this.proxifier = proxifier;
this.router = router;
}
@Override
public void notFound() {
sendError(HttpServletResponse.SC_NOT_FOUND);
}
private void sendError(int error) {
try {
response.sendError(error);
} catch (IOException e) {
throw new ResultException(e);
}
}
private void sendError(int error, String message) {
try {
response.sendError(error, message);
} catch (IOException e) {
throw new ResultException(e);
}
}
@Override
public void header(String key, String value) {
response.addHeader(key, value);
}
@Override
public void created() {
response.setStatus(HttpServletResponse.SC_CREATED);
result.use(Results.nothing());
}
@Override
public void created(String location) {
header("Location", fixLocation(location));
created();
}
@Override
public void ok() {
response.setStatus(HttpServletResponse.SC_OK);
result.use(Results.nothing());
}
@Override
public void conflict() {
sendError(HttpServletResponse.SC_CONFLICT);
}
@Override
public void methodNotAllowed(EnumSet<HttpMethod> allowedMethods) {
header("Allow", Joiner.on(", ").join(allowedMethods));
sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
}
@Override
public void movedPermanentlyTo(String location) {
this.response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
header("Location", fixLocation(location));
this.response.addIntHeader("Content-length", 0);
this.response.addDateHeader("Date", System.currentTimeMillis());
}
private String fixLocation(String location) {
if (location.startsWith("/")) {
return config.getApplicationPath() + location;
}
return location;
}
@Override
public <T> T movedPermanentlyTo(final Class<T> controller) {
return proxifier.proxify(controller, new MethodInvocation<T>() {
@Override
public Object intercept(T proxy, Method method, Object[] args, SuperMethod superMethod) {
String uri = router.urlFor(controller, method, args);
movedPermanentlyTo(uri);
return null;
}
});
}
@Override
public void unsupportedMediaType(String message) {
sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message);
}
@Override
public void badRequest(String message) {
sendError(HttpServletResponse.SC_BAD_REQUEST, message);
}
@Override
public void badRequest(List<?> errors) {
response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
result.use(representation()).from(errors, "errors").serialize();
}
@Override
public void forbidden(String message) {
sendError(HttpServletResponse.SC_FORBIDDEN, message);
}
@Override
public void noContent() {
response.setStatus(HttpServletResponse.SC_NO_CONTENT);
}
@Override
public void notAcceptable() {
sendError(HttpServletResponse.SC_NOT_ACCEPTABLE);
}
@Override
public void accepted(){
response.setStatus(HttpServletResponse.SC_ACCEPTED );
result.use(Results.nothing());
}
@Override
public void notModified() {
response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
}
@Override
public void notImplemented() {
response.setStatus(HttpServletResponse.SC_NOT_IMPLEMENTED);
}
@Override
public void internalServerError() {
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
}