org.dspace.submit.step

Class SampleStep

java.lang.Object

org.dspace.submit.AbstractProcessingStep

org.dspace.submit.step.SampleStep

public class SampleStep
extends AbstractProcessingStep

This is a Sample Step class which can be used as template for creating new custom Step processing classes!

Please Note: The basic methods you will want to override are described below. However, obviously, you are completely free to create your own methods for this Step, or override other methods. For more examples, look at the code from one of the provided DSpace step classes in the "org.dspace.submit.step" package.

This class performs all the behind-the-scenes processing that this particular step requires. This class's methods are utilized by both the JSP-UI and the Manakin XML-UI

If you are utilizing the JSP-UI, you will also be required to create a class which implements org.dspace.app.webui.submit.JSPStep, and provide the necessary JSP-related methods. There is a corresponding sample of such a class at org.dspace.app.webui.submit.step.JSPSampleStep.

Version:

$Revision$

Author:

Tim Donohue

See Also:

SubmissionConfig, SubmissionStepConfig, AbstractProcessingStep

Field Summary

Fields

Modifier and Type	Field and Description
static int	STATUS_USER_INPUT_ERROR STATUS / ERROR FLAGS (returned by doProcessing() if an error occurs or additional user interaction may be required) (Do NOT use status of 0, since it corresponds to STATUS_COMPLETE flag defined in the JSPStepManager class)

Fields inherited from class org.dspace.submit.AbstractProcessingStep

authorizeService, bitstreamService, bundleService, CANCEL_BUTTON, collectionService, configurationService, itemService, LAST_PAGE_REACHED, metadataFieldService, NEXT_BUTTON, PREVIOUS_BUTTON, PROGRESS_BAR_PREFIX, SELECT_CHANGE, STATUS_COMPLETE

Constructor Summary

Constructors

Constructor and Description
SampleStep()

Method Summary

Modifier and Type	Method and Description
int	doProcessing(Context context, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, SubmissionInfo subInfo) Do any processing of the information input by the user, and/or perform step processing (if no user interaction required)
int	getNumberOfPages(javax.servlet.http.HttpServletRequest request, SubmissionInfo subInfo) Retrieves the number of pages that this "step" extends over.

Methods inherited from class org.dspace.submit.AbstractProcessingStep

addErrorField, addErrorMessage, clearErrorFields, getCurrentPage, getErrorFields, getErrorMessage, setCurrentPage

Methods inherited from class java.lang.Object

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

Field Detail

STATUS_USER_INPUT_ERROR

public static final int STATUS_USER_INPUT_ERROR

STATUS / ERROR FLAGS (returned by doProcessing() if an error occurs or additional user interaction may be required) (Do NOT use status of 0, since it corresponds to STATUS_COMPLETE flag defined in the JSPStepManager class)

See Also:

Constant Field Values

Constructor Detail

SampleStep

public SampleStep()

Method Detail

doProcessing

public int doProcessing(Context context,
                        javax.servlet.http.HttpServletRequest request,
                        javax.servlet.http.HttpServletResponse response,
                        SubmissionInfo subInfo)
                 throws javax.servlet.ServletException,
                        IOException,
                        SQLException,
                        AuthorizeException

Do any processing of the information input by the user, and/or perform step processing (if no user interaction required)

It is this method's job to save any data to the underlying database, as necessary, and return error messages (if any) which can then be processed by the appropriate user interface (JSP-UI or XML-UI)

NOTE: If this step is a non-interactive step (i.e. requires no UI), then it should perform *all* of its processing in this method!

Specified by:

doProcessing in class AbstractProcessingStep

Parameters:

context - current DSpace context

request - current servlet request object

response - current servlet response object

subInfo - submission info object

Returns:

Status or error flag which will be processed by doPostProcessing() below! (if STATUS_COMPLETE or 0 is returned, no errors occurred!)

Throws:

javax.servlet.ServletException

IOException

SQLException

AuthorizeException

getNumberOfPages

public int getNumberOfPages(javax.servlet.http.HttpServletRequest request,
                            SubmissionInfo subInfo)
                     throws javax.servlet.ServletException

Retrieves the number of pages that this "step" extends over. This method is used to build the progress bar.

This method may just return 1 for most steps (since most steps consist of a single page). But, it should return a number greater than 1 for any "step" which spans across a number of HTML pages. For example, the configurable "Describe" step (configured using input-forms.xml) overrides this method to return the number of pages that are defined by its configuration file.

Steps which are non-interactive (i.e. they do not display an interface to the user) should return a value of 1, so that they are only processed once!

Specified by:

getNumberOfPages in class AbstractProcessingStep

Parameters:

request - The HTTP Request

subInfo - The current submission information object

Returns:

the number of pages in this step

Throws:

javax.servlet.ServletException