/*
* ViewWorkspaceItemServlet.java
*
* Version: $Revision: 3705 $
*
* Date: $Date: 2009-04-11 17:02:24 +0000 (Sat, 11 Apr 2009) $
*
* Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
* Institute of Technology. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Hewlett-Packard Company nor the name of the
* Massachusetts Institute of Technology nor the names of their
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
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: 3705 $
*/
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", new Boolean(displayAll));
request.setAttribute("item", item);
request.setAttribute("collections", collections);
request.setAttribute("workspace_id", new Integer(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");
}
}