/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.app.webui.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.SQLException;
import org.apache.log4j.Logger;
import org.dspace.authorize.AuthorizeException;
import org.dspace.authorize.AuthorizeManager;
import org.dspace.app.webui.util.JSPManager;
import org.dspace.app.webui.util.UIUtil;
import org.dspace.core.Constants;
import org.dspace.core.Context;
import org.dspace.core.LogManager;
import org.dspace.content.Collection;
import org.dspace.content.Item;
import org.dspace.content.WorkspaceItem;
/**
* Class to deal with viewing workspace items during the authoring process.
* Based heavily on the HandleServlet.
*
* @author Richard Jones
* @version $Revision$
*/
public class ViewWorkspaceItemServlet
extends DSpaceServlet
{
/** log4j logger */
private static Logger log = Logger.getLogger(ViewWorkspaceItemServlet.class);
protected void doDSGet(Context c,
HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, SQLException, AuthorizeException
{
// pass all requests to the same place for simplicty
doDSPost(c, request, response);
}
protected void doDSPost(Context c,
HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, SQLException, AuthorizeException
{
String button = UIUtil.getSubmitButton(request, "submit_error");
if (button.equals("submit_view")
|| button.equals("submit_full")
|| button.equals("submit_simple"))
{
showMainPage(c, request, response);
} else {
showErrorPage(c, request, response);
}
}
/**
* show the workspace item home page
*
* @param context the context of the request
* @param request the servlet request
* @param response the servlet response
*/
private void showMainPage(Context c,
HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, SQLException, AuthorizeException
{
// get the value from the request
int wsItemID = UIUtil.getIntParameter(request,"workspace_id");
// get the workspace item, item and collections from the request value
WorkspaceItem wsItem = WorkspaceItem.find(c, wsItemID);
Item item = wsItem.getItem();
//Collection[] collections = item.getCollections();
Collection[] collections = {wsItem.getCollection()};
// Ensure the user has authorisation
AuthorizeManager.authorizeAction(c, item, Constants.READ);
log.info(LogManager.getHeader(c,
"View Workspace Item Metadata",
"workspace_item_id="+wsItemID));
// Full or simple display?
boolean displayAll = false;
String button = UIUtil.getSubmitButton(request, "submit_simple");
if (button.equalsIgnoreCase("submit_full"))
{
displayAll = true;
}
// FIXME: we need to synchronise with the handle servlet to use the
// display item JSP for both handled and un-handled items
// Set attributes and display
// request.setAttribute("wsItem", wsItem);
request.setAttribute("display.all", Boolean.valueOf(displayAll));
request.setAttribute("item", item);
request.setAttribute("collections", collections);
request.setAttribute("workspace_id", Integer.valueOf(wsItem.getID()));
JSPManager.showJSP(request, response, "/display-item.jsp");
}
/**
* Show error page if nothing has been <code>POST</code>ed to servlet
*
* @param context the context of the request
* @param request the servlet request
* @param response the servlet response
*/
private void showErrorPage(Context context,
HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, SQLException, AuthorizeException
{
int wsItemID = UIUtil.getIntParameter(request,"workspace_id");
log.error(LogManager.getHeader(context,
"View Workspace Item Metadata Failed",
"workspace_item_id="+wsItemID));
JSPManager.showJSP(request, response, "/workspace/wsv-error.jsp");
}
}