/*
* Copyright 2011 <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
*
* 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 org.ocpsoft.rewrite.showcase.bookstore.web.details;
import java.io.IOException;
import javax.ejb.EJB;
import javax.enterprise.context.RequestScoped;
import javax.faces.context.FacesContext;
import javax.inject.Named;
import javax.servlet.http.HttpServletResponse;
import org.ocpsoft.rewrite.annotation.Join;
import org.ocpsoft.rewrite.annotation.Parameter;
import org.ocpsoft.rewrite.annotation.RequestAction;
import org.ocpsoft.rewrite.faces.annotation.Deferred;
import org.ocpsoft.rewrite.showcase.bookstore.service.BookImageService;
import org.ocpsoft.rewrite.showcase.bookstore.web.utils.ResponseUtils;
@Named
@RequestScoped
@Join(path = "/images/book/{isbn}.jpg", to = "/faces/home.xhtml")
public class BookImageBean
{
@Parameter
private Long isbn;
@EJB
private BookImageService bookImageService;
@RequestAction
@Deferred
public void getImage() throws IOException
{
// load image from the database
byte[] image = bookImageService.getBookImage(isbn);
// send 404 for unknown books
if (image == null) {
ResponseUtils.sendError(404);
return;
}
FacesContext facesContext = FacesContext.getCurrentInstance();
HttpServletResponse response = (HttpServletResponse) facesContext.getExternalContext().getResponse();
// set content type and send image
response.setContentType("image/jpg");
response.getOutputStream().write(image);
response.flushBuffer();
// end JSF lifecycle
facesContext.responseComplete();
}
public Long getIsbn()
{
return isbn;
}
public void setIsbn(Long isbn)
{
this.isbn = isbn;
}
}