/*
* BitstreamFormatRegistry.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.admin;
import java.io.IOException;
import java.sql.SQLException;
import java.util.LinkedList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import org.dspace.app.webui.servlet.DSpaceServlet;
import org.dspace.app.webui.util.JSPManager;
import org.dspace.app.webui.util.UIUtil;
import org.dspace.authorize.AuthorizeException;
import org.dspace.content.BitstreamFormat;
import org.dspace.core.Context;
/**
* Servlet for editing the bitstream format registry
*
* @author Robert Tansley
* @version $Revision: 3705 $
*/
public class BitstreamFormatRegistry extends DSpaceServlet
{
/** User wants to edit a format */
public static final int START_EDIT = 1;
/** User wants to delete a format */
public static final int START_DELETE = 2;
/** User confirms edit of a format */
public static final int CONFIRM_EDIT = 3;
/** User confirms delete of a format */
public static final int CONFIRM_DELETE = 4;
/** User wants to create a new format */
public static final int CREATE = 4;
/** Logger */
private static Logger log = Logger.getLogger(BitstreamFormatRegistry.class);
protected void doDSGet(Context context, HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException,
SQLException, AuthorizeException
{
// GET just displays the list of formats
showFormats(context, request, response);
}
protected void doDSPost(Context context, HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException,
SQLException, AuthorizeException
{
String button = UIUtil.getSubmitButton(request, "submit");
if (button.equals("submit_update"))
{
// Update the metadata for a bitstream format
BitstreamFormat bf = BitstreamFormat.find(context, UIUtil
.getIntParameter(request, "format_id"));
bf.setMIMEType(request.getParameter("mimetype"));
bf.setShortDescription(request.getParameter("short_description"));
bf.setDescription(request.getParameter("description"));
bf
.setSupportLevel(UIUtil.getIntParameter(request,
"support_level"));
bf.setInternal((request.getParameter("internal") != null)
&& request.getParameter("internal").equals("true"));
// Separate comma-separated extensions
List extensions = new LinkedList();
String extParam = request.getParameter("extensions");
while (extParam.length() > 0)
{
int c = extParam.indexOf(',');
if (c > 0)
{
extensions.add(extParam.substring(0, c).trim());
extParam = extParam.substring(c + 1).trim();
}
else
{
if (extParam.trim().length() > 0)
{
extensions.add(extParam.trim());
extParam = "";
}
}
}
// Set extensions in the format - convert to array
String[] extArray = (String[]) extensions
.toArray(new String[extensions.size()]);
bf.setExtensions(extArray);
bf.update();
showFormats(context, request, response);
context.complete();
}
else if (button.equals("submit_add"))
{
// Add a new bitstream - simply add to the list, and let the user
// edit with the main form
BitstreamFormat bf = BitstreamFormat.create(context);
// We set the "internal" flag to true, so that the empty bitstream
// format doesn't show up in the submission UI yet
bf.setInternal(true);
bf.update();
showFormats(context, request, response);
context.complete();
}
else if (button.equals("submit_delete"))
{
// Start delete process - go through verification step
BitstreamFormat bf = BitstreamFormat.find(context, UIUtil
.getIntParameter(request, "format_id"));
request.setAttribute("format", bf);
JSPManager.showJSP(request, response,
"/dspace-admin/confirm-delete-format.jsp");
}
else if (button.equals("submit_confirm_delete"))
{
// User confirms deletion of format
BitstreamFormat bf = BitstreamFormat.find(context, UIUtil
.getIntParameter(request, "format_id"));
bf.delete();
showFormats(context, request, response);
context.complete();
}
else
{
// Cancel etc. pressed - show list again
showFormats(context, request, response);
}
}
/**
* Show list of bitstream formats
*
* @param context
* Current DSpace context
* @param request
* Current HTTP request
* @param response
* Current HTTP response
*/
private void showFormats(Context context, HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException,
SQLException, AuthorizeException
{
BitstreamFormat[] formats = BitstreamFormat.findAll(context);
request.setAttribute("formats", formats);
JSPManager.showJSP(request, response, "/dspace-admin/list-formats.jsp");
}
}