org.dspace.app.webui.servlet
Class BrowserServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.dspace.app.webui.servlet.DSpaceServlet
              org.dspace.app.webui.servlet.AbstractBrowserServlet
                  org.dspace.app.webui.servlet.BrowserServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class BrowserServlet
extends AbstractBrowserServlet

Servlet for browsing through indices, as they are defined in the configuration. This class can take a wide variety of inputs from the user interface: - type: the type of browse (index name) being performed - order: (ASC | DESC) the direction for result sorting - value: A specific value to find items around. For example the author name or subject - month: integer specification of the month of a date browse - year: integer specification of the year of a date browse - starts_with: string value at which to start browsing - vfocus: start browsing with a value of this string - focus: integer id of the item at which to start browsing - rpp: integer number of results per page to display - sort_by: integer specification of the field to search on - etal: integer number to limit multiple value items specified in config to

Version:

$Revision$

Author:

Richard Jones

See Also:

Serialized Form

Constructor Summary

BrowserServlet()

Method Summary

protected void	doDSGet(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Do the usual DSpace GET method.
protected void	exportMetadata(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, BrowserScope scope) Export the metadata from a browse
protected void	showError(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Display the error page
protected void	showFullPage(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Display a full item listing.
protected void	showNoResultsPage(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Display the No Results page
protected void	showSinglePage(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Display the single page.

Methods inherited from class org.dspace.app.webui.servlet.AbstractBrowserServlet

getBrowserScopeForRequest, processBrowse

Methods inherited from class org.dspace.app.webui.servlet.DSpaceServlet

doDSPost, doGet, doPost

Methods inherited from class javax.servlet.http.HttpServlet

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

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Constructor Detail

BrowserServlet

public BrowserServlet()

Method Detail

doDSGet

protected void doDSGet(Context context,
                       javax.servlet.http.HttpServletRequest request,
                       javax.servlet.http.HttpServletResponse response)
                throws javax.servlet.ServletException,
                       IOException,
                       SQLException,
                       AuthorizeException

Do the usual DSpace GET method. You will notice that browse does not currently respond to POST requests.

Overrides:

doDSGet in class DSpaceServlet

Parameters:

context - a DSpace Context object

request - the HTTP request

response - the HTTP response

Throws:

SQLException - if a database error occurs

AuthorizeException - if some authorization error occurs

javax.servlet.ServletException

IOException

showError

protected void showError(Context context,
                         javax.servlet.http.HttpServletRequest request,
                         javax.servlet.http.HttpServletResponse response)
                  throws javax.servlet.ServletException,
                         IOException,
                         SQLException,
                         AuthorizeException

Display the error page

Specified by:

showError in class AbstractBrowserServlet

Parameters:

context -

request -

response -

Throws:

javax.servlet.ServletException

IOException

SQLException

AuthorizeException

showNoResultsPage

protected void showNoResultsPage(Context context,
                                 javax.servlet.http.HttpServletRequest request,
                                 javax.servlet.http.HttpServletResponse response)
                          throws javax.servlet.ServletException,
                                 IOException,
                                 SQLException,
                                 AuthorizeException

Display the No Results page

Specified by:

showNoResultsPage in class AbstractBrowserServlet

Parameters:

context -

request -

response -

Throws:

javax.servlet.ServletException

IOException

SQLException

AuthorizeException

showSinglePage

protected void showSinglePage(Context context,
                              javax.servlet.http.HttpServletRequest request,
                              javax.servlet.http.HttpServletResponse response)
                       throws javax.servlet.ServletException,
                              IOException,
                              SQLException,
                              AuthorizeException

Display the single page. This is the page which lists just the single values of a metadata browse, not individual items. Single values are links through to all the items that match that metadata value

Specified by:

showSinglePage in class AbstractBrowserServlet

Parameters:

context -

request -

response -

Throws:

javax.servlet.ServletException

IOException

SQLException

AuthorizeException

showFullPage

protected void showFullPage(Context context,
                            javax.servlet.http.HttpServletRequest request,
                            javax.servlet.http.HttpServletResponse response)
                     throws javax.servlet.ServletException,
                            IOException,
                            SQLException,
                            AuthorizeException

Display a full item listing.

Specified by:

showFullPage in class AbstractBrowserServlet

Parameters:

context -

request -

response -

Throws:

javax.servlet.ServletException

IOException

SQLException

AuthorizeException

exportMetadata

protected void exportMetadata(Context context,
                              javax.servlet.http.HttpServletRequest request,
                              javax.servlet.http.HttpServletResponse response,
                              BrowserScope scope)
                       throws IOException,
                              javax.servlet.ServletException

Export the metadata from a browse

Parameters:

context - The DSpace context

request - The request object

response - The response object

scope - The browse scope

Throws:

IOException

javax.servlet.ServletException