Package io.goobi.viewer.servlets

Class DFGViewerImage

java.lang.Object

jakarta.servlet.GenericServlet

jakarta.servlet.http.HttpServlet

io.goobi.viewer.servlets.DFGViewerImage

All Implemented Interfaces:

Servlet, ServletConfig, Serializable

public class DFGViewerImage
extends HttpServlet
implements Serializable

Servlet that delivers images in the format expected by the DFG Viewer image protocol.

Author:

Florian Alpers

See Also:

• Serialized Form

Field Summary

Fields inherited from class jakarta.servlet.http.HttpServlet

LEGACY_DO_HEAD

Constructor Summary

Constructors

Constructor	Description
DFGViewerImage()	Creates a new DFGViewerImage instance.

Method Summary

Modifier and Type	Method	Description
protected void	doGet(HttpServletRequest request, HttpServletResponse response)	Handles GET requests by redirecting to the corresponding IIIF image API URL.
de.unigoettingen.sub.commons.contentlib.imagelib.transform.Scale	parseScale(String widthString)	parseScale.

Methods inherited from class jakarta.servlet.http.HttpServlet

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

Methods inherited from class jakarta.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 Details

DFGViewerImage

public DFGViewerImage()

Creates a new DFGViewerImage instance.

Method Details

doGet

protected void doGet(HttpServletRequest request,
 HttpServletResponse response)
              throws ServletException,
IOException

Handles GET requests by redirecting to the corresponding IIIF image API URL.

The path info must have exactly four segments: /{pi}/{width}/{rotation}/{filename}.

Overrides:

doGet in class HttpServlet

Parameters:

request - the HTTP request

response - the HTTP response

Throws:

ServletException - if a servlet-specific error occurs

IOException - if an I/O error occurs

parseScale

public de.unigoettingen.sub.commons.contentlib.imagelib.transform.Scale parseScale(String widthString)
                                                                            throws de.unigoettingen.sub.commons.contentlib.exceptions.IllegalRequestException,
de.unigoettingen.sub.commons.contentlib.exceptions.ServiceNotImplementedException

parseScale.

Parameters:

widthString - numeric width or scale method name

Returns:

the Scale instance parsed from the given width or method name

Throws:

de.unigoettingen.sub.commons.contentlib.exceptions.IllegalRequestException - if any.

de.unigoettingen.sub.commons.contentlib.exceptions.ServiceNotImplementedException - if any.