org.dspace.app.webui.submit
Class JSPStepManager

java.lang.Object
  org.dspace.app.webui.submit.JSPStepManager

public class JSPStepManager
extends java.lang.Object

Manages and processes all JSP-UI classes for DSpace Submission steps.

This manager is utilized by the SubmissionController to appropriately load each JSP-UI step, and process any information returned by each step

Version:

$Revision: 5845 $

Author:

Tim Donohue

See Also:

AbstractProcessingStep, SubmissionController, JSPStep

Constructor Summary

JSPStepManager()

Method Summary

protected boolean	completeStep(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, SubmissionInfo subInfo) This method completes the processing of this "step" and forwards the request back to the SubmissionController (so that the next step can be called).
static java.lang.String	getLastJSPDisplayed(javax.servlet.http.HttpServletRequest request) Retrieves the context path of the last JSP that was displayed to the user.
static int	getPageReached(SubmissionInfo subInfo) Find out which page a user has reached in this particular step.
java.lang.String	getReviewJSP(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, SubmissionInfo subInfo) Return the URL path (e.g.
protected boolean	hasMorePages(javax.servlet.http.HttpServletRequest request, SubmissionInfo subInfo, int pageNumber) Checks to see if there are more pages in the current step after the specified page
static JSPStepManager	loadStep(SubmissionStepConfig stepConfig) Initialize the current JSPStepManager object, by loading the specified step class.
boolean	processStep(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, SubmissionInfo subInfo) Initialize the current JSPStepManager object, to prepare for processing of this step.
static void	showJSP(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, SubmissionInfo subInfo, java.lang.String pathToJSP) This method actually displays a JSP page for this "step".

Methods inherited from class java.lang.Object

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

Constructor Detail

JSPStepManager

public JSPStepManager()

Method Detail

loadStep

public static JSPStepManager loadStep(SubmissionStepConfig stepConfig)
                               throws java.lang.Exception

Initialize the current JSPStepManager object, by loading the specified step class.

Parameters:

stepConfig - the SubmissionStepConfig object which describes this step's configuration in the item-submission.xml

Throws:

java.lang.Exception - if the JSPStep cannot be loaded or the class specified doesn't implement the JSPStep interface

processStep

public final boolean processStep(Context context,
                                 javax.servlet.http.HttpServletRequest request,
                                 javax.servlet.http.HttpServletResponse response,
                                 SubmissionInfo subInfo)
                          throws javax.servlet.ServletException,
                                 java.io.IOException,
                                 java.sql.SQLException,
                                 AuthorizeException

Initialize the current JSPStepManager object, to prepare for processing of this step. This method is called by the SubmissionController, and its job is to determine which "page" of the step the current user is on.

Once the page has been determined, this method also determines whether the user is completing this page (i.e. there is user input data that needs to be saved to the database) or beginning this page (i.e. the user needs to be sent to the JSP for this page).

Parameters:

context - a DSpace Context object

request - the HTTP request

response - the HTTP response

subInfo - submission info object

Returns:

true if step is completed (successfully), false otherwise

Throws:

javax.servlet.ServletException - if a general error occurs

java.io.IOException - if a i/o error occurs

java.sql.SQLException - if a database error occurs

AuthorizeException - if some authorization error occurs

showJSP

public static final void showJSP(javax.servlet.http.HttpServletRequest request,
                                 javax.servlet.http.HttpServletResponse response,
                                 SubmissionInfo subInfo,
                                 java.lang.String pathToJSP)
                          throws javax.servlet.ServletException,
                                 java.io.IOException,
                                 java.sql.SQLException

This method actually displays a JSP page for this "step". This method can be called from "doPostProcessing()" to display an error page, etc.

Parameters:

request - current servlet request object

response - current servlet response object

subInfo - submission info object

pathToJSP - context path to the JSP to display

Throws:

javax.servlet.ServletException

java.io.IOException

java.sql.SQLException

completeStep

protected final boolean completeStep(Context context,
                                     javax.servlet.http.HttpServletRequest request,
                                     javax.servlet.http.HttpServletResponse response,
                                     SubmissionInfo subInfo)
                              throws javax.servlet.ServletException,
                                     java.io.IOException,
                                     java.sql.SQLException,
                                     AuthorizeException

This method completes the processing of this "step" and forwards the request back to the SubmissionController (so that the next step can be called).

Parameters:

context - current DSpace context

request - current servlet request object

response - current servlet response object

subInfo - submission info object

Returns:

true if step completed (successfully), false otherwise

Throws:

javax.servlet.ServletException

java.io.IOException

java.sql.SQLException

AuthorizeException

hasMorePages

protected final boolean hasMorePages(javax.servlet.http.HttpServletRequest request,
                                     SubmissionInfo subInfo,
                                     int pageNumber)
                              throws javax.servlet.ServletException

Checks to see if there are more pages in the current step after the specified page

Parameters:

request - The HTTP Request object

subInfo - The current submission information object

pageNumber - The current page

Throws:

javax.servlet.ServletException - if there are no more pages in this step

getPageReached

public static final int getPageReached(SubmissionInfo subInfo)

Find out which page a user has reached in this particular step.

Parameters:

subInfo - Submission information

Returns:

page reached

getLastJSPDisplayed

public static final java.lang.String getLastJSPDisplayed(javax.servlet.http.HttpServletRequest request)

Retrieves the context path of the last JSP that was displayed to the user. This is useful in the "doPostProcessing()" method to determine which JSP has just submitted form information.

Parameters:

request - current servlet request object

Returns:

pathToJSP The context path to the JSP page (e.g. "/submit/select-collection.jsp")

getReviewJSP

public java.lang.String getReviewJSP(Context context,
                                     javax.servlet.http.HttpServletRequest request,
                                     javax.servlet.http.HttpServletResponse response,
                                     SubmissionInfo subInfo)

Return the URL path (e.g. /submit/review-metadata.jsp) of the JSP which will review the information that was gathered in the currently loaded Step.

This Review JSP is loaded by the 'Verify' Step, in order to dynamically generate a submission verification page consisting of the information gathered in all the enabled submission steps.

Parameters:

context - current DSpace context

request - current servlet request object

response - current servlet response object

subInfo - submission info object