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/*
* #%L
* Wisdom-Framework
* %%
* Copyright (C) 2013 - 2014 Wisdom Framework
* %%
* 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.
* #L%
*/
package org.wisdom.api.http;
import com.fasterxml.jackson.databind.JsonNode;
import com.google.common.base.Preconditions;
import org.w3c.dom.Document;
import org.wisdom.api.bodies.NoHttpBody;
import org.wisdom.api.bodies.RenderableFile;
import org.wisdom.api.bodies.RenderableStream;
import org.wisdom.api.bodies.RenderableURL;
import java.io.File;
import java.io.InputStream;
import java.net.URL;
import java.util.concurrent.Callable;
/**
* Convenience methods for the generation of Results.
*
* {@link Results#forbidden() generates a results and sets it to forbidden.
*
* A range of shortcuts are available from here.
*/
public abstract class Results {
/**
* Generates a simple result with the given status.
*
* @param statusCode the status
* @return a result with the given status, but without content.
*/
public static Result status(int statusCode) {
return new Result(statusCode);
}
/**
* Generates a simple result with the status {@literal 200 - OK}.
*
* @return a new result with the status 200, with an empty content.
*/
public static Result ok() {
return status(Result.OK).render(NoHttpBody.INSTANCE);
}
/**
* Generates a result with the {@literal 200 - OK} status and with the given XML content. The result has the
* {@literal Content-Type} header set to {@literal application/xml}.
*
* @param document the XML document
* @return a new configured result
*/
public static Result ok(Document document) {
return status(Result.OK).render(document).as(MimeTypes.XML);
}
/**
* Generates a result with the {@literal 200 - OK} status and with the given JSON content. The result has the
* {@literal Content-Type} header set to {@literal application/json}.
*
* @param node the json object (JSON array or JSON object)
* @return a new configured result
*/
public static Result ok(JsonNode node) {
return status(Result.OK).render(node).as(MimeTypes.JSON);
}
/**
* Generates a result with the status {@literal 200 - OK} and with the given content. Depending of the type
* of the given object, the content will be preprocessed.
*
* @param object the content
* @return a new configured result
*/
public static Result ok(Object object) {
return status(Result.OK).render(object);
}
/**
* Creates a new result with the status {@literal 200 - OK} with the content loaded from the given URL. Wisdom
* tries to guess the {@literal Content-Type} header value from the given URL. However,
* we recommend to set it explicitly, to avoid bad guesses.
*
* @param object the url
* @return a new configured result
*/
public static Result ok(URL object) {
return status(Result.OK).render(new RenderableURL(object));
}
/**
* Creates a new result with the status {@literal 200 - OK} with the content loaded from the given input stream.
*
* @param object the stream
* @return a new configured result
*/
public static Result ok(InputStream object) {
return status(Result.OK).render(new RenderableStream(object));
}
/**
* Creates a new result with the status {@literal 200 - OK} with the given content. The result has the
* {@literal Content-Type} header set to {@literal text/plain}.
*
* @param object the content
* @return a new configured result
*/
public static Result ok(String object) {
return status(Result.OK).render(object).as(MimeTypes.TEXT);
}
/**
* Creates a new result with the status {@literal 200 - OK} building a JSONP response.
*
* @param padding the callback name
* @param node the json object (JSON array or JSON object)
* @return the JSONP response built as follows: padding(node)
*/
public static Result ok(String padding, JsonNode node) {
return status(Result.OK).render(padding, node);
}
/**
* Sets the status of the given result to {@literal 200 - OK}.
*
* @param result the result to update
* @return the given result with the updated status
*/
public static Result ok(Result result) {
return result.status(Result.OK);
}
/**
* Generates a new result with an empty content, and with the status set to {@literal 404 - NOT FOUND}.
*
* @return the new result
*/
public static Result notFound() {
return status(Result.NOT_FOUND).noContentIfNone();
}
/**
* Creates a new result with the status {@literal 404 - NOT FOUND} with the given content. The result has the
* {@literal Content-Type} header set to {@literal text/plain}.
*
* @param content the content
* @return a new configured result
*/
public static Result notFound(String content) {
return status(Result.NOT_FOUND).render(content).as(MimeTypes.TEXT);
}
/**
* Sets the status of the given result to {@literal 404 - NOT FOUND}.
*
* @param result the result to update
* @return the given result with the updated status
*/
public static Result notFound(Result result) {
return result.status(Result.NOT_FOUND);
}
/**
* Creates a new result with the status {@literal 404 - NOT FOUND} with the given content. The {@literal
* Content-Type} header value is deduced from the given content.
*
* @param renderable the content
* @return a new configured result
*/
public static Result notFound(Renderable renderable) {
return status(Result.NOT_FOUND).render(renderable);
}
/**
* Generates a new result with an empty content, and with the status set to {@literal 403 - FORBIDDEN}.
*
* @return the new result
*/
public static Result forbidden() {
return status(Result.FORBIDDEN).noContentIfNone();
}
/**
* Sets the status of the given result to {@literal 403 - FORBIDDEN}.
*
* @param result the result to update
* @return the given result with the updated status
*/
public static Result forbidden(Result result) {
return result.status(Result.FORBIDDEN);
}
/**
* Creates a new result with the status {@literal 403 - FORBIDDEN} with the given content. The result has the
* {@literal Content-Type} header set to {@literal text/plain}.
*
* @param content the content
* @return a new configured result
*/
public static Result forbidden(String content) {
return status(Result.FORBIDDEN).render(content).as(MimeTypes.TEXT);
}
/**
* Generates a new result with an empty content, and with the status set to {@literal 401 - UNAUTHORIZED}.
*
* @return the new result
*/
public static Result unauthorized() {
return status(Result.UNAUTHORIZED).noContentIfNone();
}
/**
* Sets the status of the given result to {@literal 401 - UNAUTHORIZED}.
*
* @param result the result to update
* @return the given result with the updated status
*/
public static Result unauthorized(Result result) {
return result.status(Result.UNAUTHORIZED);
}
/**
* Creates a new result with the status {@literal 401 - UNAUTHORIZED} with the given content. The result has the
* {@literal Content-Type} header set to {@literal text/plain}.
*
* @param content the content
* @return a new configured result
*/
public static Result unauthorized(String content) {
return status(Result.UNAUTHORIZED).render(content).as(MimeTypes.TEXT);
}
/**
* Generates a new result with an empty content, and with the status set to {@literal 400 - BAD REQUEST}.
*
* @return the new result
*/
public static Result badRequest() {
return status(Result.BAD_REQUEST).noContentIfNone();
}
/**
* Sets the status of the given result to {@literal 400 - BAD REQUEST}.
*
* @param result the result to update
* @return the given result with the updated status
*/
public static Result badRequest(Result result) {
return result.status(Result.BAD_REQUEST);
}
/**
* Generates a result with the status {@literal 400 - BAD REQUEST} and with the given content. Depending of the type
* of the given object, the content will be preprocessed.
*
* @param object the content
* @return a new configured result
*/
public static Result badRequest(Object object) {
return status(Result.BAD_REQUEST).render(object);
}
/**
* Creates a new result with the status {@literal 400 - BAD REQUEST} with the given content. The result has the
* {@literal Content-Type} header set to {@literal text/plain}.
*
* @param content the content
* @return a new configured result
*/
public static Result badRequest(String content) {
return status(Result.BAD_REQUEST).render(content).as(MimeTypes.TEXT);
}
/**
* Generates a new result with the status set to {@literal 204 - NO CONTENT}.
*
* @return the new result
*/
public static Result noContent() {
return status(Result.NO_CONTENT)
.render(NoHttpBody.INSTANCE);
}
/**
* Generates a new result with the status set to {@literal 500 - INTERNAL SERVER ERROR} and with an empty content.
*
* @return the new result
*/
public static Result internalServerError() {
return status(Result.INTERNAL_SERVER_ERROR).noContentIfNone();
}
/**
* Generates a new result with the status set to {@literal 500 - INTERNAL SERVER ERROR} and a JSON-form of the
* given exception as content. The {@literal Content-Type} header is set to {@literal application/json}.
*
* @param e the exception
* @return the new result
*/
public static Result internalServerError(Throwable e) {
return status(Result.INTERNAL_SERVER_ERROR).render(e).as(MimeTypes.JSON);
}
/**
* Generates a new result with the status set to {@literal 500 - INTERNAL SERVER ERROR} with the given text as
* content. The {@literal Content-Type} header is set to {@literal text/plain}.
*
* @param content the content
* @return the new result
*/
public static Result internalServerError(String content) {
return status(Result.INTERNAL_SERVER_ERROR).render(content).as(MimeTypes.TEXT);
}
/**
* Generates a new result with the status set to {@literal 500 - INTERNAL SERVER ERROR} and the given renderable as
* content.
*
* @param renderable the content
* @return the new result
*/
public static Result internalServerError(Renderable renderable) {
return status(Result.INTERNAL_SERVER_ERROR).render(renderable);
}
/**
* A redirect that uses 303 see other.
*
* The redirect does NOT need a template and does NOT
* render a text in the Http body by default.
*
* If you wish to do so please
* remove the {@link NoHttpBody} that is set as renderable of
* the Result.
*
* @param url The url used as redirect target.
* @return A nicely configured result with status code 303 and the url set
* as Location header. Renders no Http body by default.
*/
public static Result redirect(String url) {
return status(Result.SEE_OTHER)
.with(HeaderNames.LOCATION, url)
.render(NoHttpBody.INSTANCE);
}
/**
* A redirect that uses 307 see other.
*
* The redirect does NOT need a template and does NOT
* render a text in the Http body by default.
*
* If you wish to do so please
* remove the {@link NoHttpBody} that is set as renderable of
* the Result.
*
* @param url The url used as redirect target.
* @return A nicely configured result with status code 307 and the url set
* as Location header. Renders no Http body by default.
*/
public static Result redirectTemporary(String url) {
return status(Result.TEMPORARY_REDIRECT)
.with(HeaderNames.LOCATION, url)
.render(NoHttpBody.INSTANCE);
}
/**
* Generates a simple result with the {@literal 200 - OK} and the {@literal Content-Type} set to {@literal
* text/html}.
*
* @return a result with the given status and content type, but without content.
*/
public static Result html() {
return status(Result.OK).as(MimeTypes.HTML);
}
/**
* Generates a simple result with the {@literal 200 - OK} and the {@literal Content-Type} set to {@literal
* application/json}.
*
* @return a result with the given status and content type, but without content.
*/
public static Result json() {
return status(Result.OK).as(MimeTypes.JSON);
}
/**
* Generates a simple result with the {@literal 200 - OK} and the {@literal Content-Type} set to {@literal
* application/xml}.
*
* @return a result with the given status and content type, but without content.
*/
public static Result xml() {
return status(Result.OK).as(MimeTypes.XML);
}
/**
* Generates a simple result with the {@literal 501 - NOT IMPLEMENTED} and the {@literal Content-Type} set to
* {@literal application/json}.
*
* @return a result with the given status and content type, but without content.
*/
public static Result todo() {
return status(Result.NOT_IMPLEMENTED).json();
}
/**
* Creates a new result with the status {@literal 200 - OK} sending the given file to the client. Wisdom
* tries to guess the {@literal Content-Type} header value from the given file.
*
* If attachment is set to {@literal true}, the {@literal Content-Disposition} header is set to "attachment" and
* with the file name matching the given file's name.
*
* @param file the file
* @param attachment whether or not the file need to be sent as attachment.
* @return a new configured result
*/
public static Result ok(File file, boolean attachment) {
Preconditions.checkArgument(file.exists());
Result result = status(Result.OK)
.as(MimeTypes.getMimeTypeForFile(file))
.with(HeaderNames.CONTENT_LENGTH, Long.toString(file.length()))
.render(new RenderableFile(file));
if (attachment) {
// Add the content-disposal header
result.with(HeaderNames.CONTENT_DISPOSITION, "attachment; filename=\"" + file.getName() + "\"");
}
return result;
}
/**
* Creates a new result with the status {@literal 200 - OK} sending the given file to the client. Wisdom
* tries to guess the {@literal Content-Type} header value from the given file.
*
* @param file the file
* @return a new configured result
*/
public static Result ok(File file) {
return ok(file, false);
}
/**
* Creates a new async result. The given callable is executed using a separated thread (managed by Wisdom), so,
* not in the request thread. It is heavily recommended to use async result in each action method needing time to
* compute the returned result.
*
* @param task the callable computing the result.
* @return the async result.
*/
public static AsyncResult async(Callable task) {
return new AsyncResult(task);
}
}
