edu.cornell.mannlib.vitro.webapp.filestorage.serving

Class FileServingServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

edu.cornell.mannlib.vitro.webapp.controller.VitroHttpServlet

edu.cornell.mannlib.vitro.webapp.filestorage.serving.FileServingServlet

All Implemented Interfaces:

MultipartRequestWrapper.ParsingStrategy, Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

@WebServlet(name="serveFiles",
            urlPatterns="/file/*")
public class FileServingServlet
extends VitroHttpServlet

Handles a request to serve an uploaded file from the file storage system.

The path of the request should be the "alias URL" of the desired file. We need to:

• Use the alias URL to find the URI of the file bytestream object.
• Find the file surrogate object to get the MIME type of the file, and confirm the filename.
• Set the MIME type on the output stream and serve the bytes.

If the request is superficially correct, but no such file can be found, return a 404. If there is a break in the data structures within the model or the file system, return a 500.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class edu.cornell.mannlib.vitro.webapp.controller.VitroHttpServlet

VitroHttpServlet.PickListSorter

Field Summary

Fields inherited from class edu.cornell.mannlib.vitro.webapp.controller.VitroHttpServlet

HTML_MIMETYPE, JSON_LD_MIMETYPE, JSON_MIMETYPE, N3_MIMETYPE, publicDateFormat, RDFXML_MIMETYPE, TTL_MIMETYPE, XHTML_MIMETYPE

Constructor Summary

Constructors

Constructor and Description
FileServingServlet()

Method Summary

Modifier and Type	Method and Description
protected void	doGet(javax.servlet.http.HttpServletRequest rawRequest, javax.servlet.http.HttpServletResponse response) doGet does nothing.
protected void	doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) A POST request is treated the same as a GET request.
void	init() Get a reference to the File Storage system.

Methods inherited from class edu.cornell.mannlib.vitro.webapp.controller.VitroHttpServlet

dumpRequestParameters, isAuthorizedToDisplayPage, maximumMultipartFileSize, redirectToInsufficientAuthorizationPage, redirectToLoginPage, redirectUnauthorizedRequest, service, sortForPickList, stashFileSizeException

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FileServingServlet

public FileServingServlet()

Method Detail

init

public void init()
          throws javax.servlet.ServletException

Get a reference to the File Storage system.

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

doGet

protected void doGet(javax.servlet.http.HttpServletRequest rawRequest,
                     javax.servlet.http.HttpServletResponse response)
              throws javax.servlet.ServletException,
                     IOException

Description copied from class: VitroHttpServlet

doGet does nothing.

Overrides:

doGet in class VitroHttpServlet

Throws:

javax.servlet.ServletException

IOException

doPost

protected void doPost(javax.servlet.http.HttpServletRequest request,
                      javax.servlet.http.HttpServletResponse response)
               throws javax.servlet.ServletException,
                      IOException

A POST request is treated the same as a GET request.

Overrides:

doPost in class VitroHttpServlet

Throws:

javax.servlet.ServletException

IOException