alpha.portal.webapp.controller.CardVersionHistoryController.java Source code

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Here is the source code for alpha.portal.webapp.controller.CardVersionHistoryController.java

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/**************************************************************************
 * alpha-Portal: A web portal, for managing knowledge-driven 
 * ad-hoc processes, in form of case files.
 * ==============================================
 * Copyright (C) 2011-2012 by 
 *   - Christoph P. Neumann (http://www.chr15t0ph.de)
 *   - and the SWAT 2011 team
 **************************************************************************
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 **************************************************************************
 * $Id$
 *************************************************************************/
package alpha.portal.webapp.controller;

import java.io.IOException;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang.StringUtils;
import org.appfuse.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import alpha.portal.model.Adornment;
import alpha.portal.model.AdornmentType;
import alpha.portal.model.AlphaCard;
import alpha.portal.model.AlphaCase;
import alpha.portal.service.AlphaCardManager;
import alpha.portal.service.CaseManager;

/**
 * Controller of the card form.
 * 
 * @see BaseFormController Base FormController
 */
@Controller
@RequestMapping("/cardVersionHistory*")
public class CardVersionHistoryController extends BaseFormController {

    /**
     * The CaseManager.
     * 
     * @see CaseManager CaseManager
     */
    @Autowired
    private AlphaCardManager cardManager;

    /**
     * The CaseManager.
     * 
     * @see CaseManager CaseManager
     */
    @Autowired
    private CaseManager caseManager;

    /**
     * Show form.
     * 
     * @param m
     *            the m
     * @param request
     *            the request
     * @return the string
     * @throws IOException
     *             Signals that an I/O exception has occurred.
     */
    @RequestMapping(method = RequestMethod.GET)
    protected String showForm(final Model m, final HttpServletRequest request) throws IOException {

        final String caseId = request.getParameter("case");
        final String version = request.getParameter("version");

        String paging = "";
        for (final Object e : request.getParameterMap().keySet()) {
            if ((e.toString().length() > 2) && e.toString().substring(0, 2).equalsIgnoreCase("d-")) {
                paging = e.toString() + "=" + request.getParameter(e.toString());
                break;
            }
        }
        m.addAttribute("paging", paging);

        Long versionL = null;
        if (StringUtils.isNotBlank(version)) {
            try {
                versionL = Long.parseLong(version);
            } catch (final NumberFormatException e) {
                this.saveError(request, "card.invalidVersion");
                return "redirect:/caseform?caseId=" + caseId;
            }
        }

        if (StringUtils.isBlank(caseId) || !this.caseManager.exists(caseId)) {
            this.saveError(request, "case.invalidId");
            return "redirect:/caseMenu";
        }

        final AlphaCase alphaCase = this.caseManager.get(caseId);
        final List<AlphaCard> versions = this.cardManager.getAllVersions(caseId);
        m.addAttribute("case", alphaCase);
        m.addAttribute("cards", versions);

        AlphaCard activeCard = null;
        final User user = this.getUserManager().getUserByUsername(request.getRemoteUser());
        for (final AlphaCard c : versions) {
            if (c.getAlphaCardIdentifier().getSequenceNumber() == versionL) {
                final Adornment contributor = c.getAlphaCardDescriptor()
                        .getAdornment(AdornmentType.Contributor.getName());
                if ((user == null)
                        || ((contributor != null) && !contributor.getValue().equals(user.getId().toString()))) {
                    this.saveError(request, "card.invalidId");
                    return "cardVersionHistory";
                }
                activeCard = c;
                break;
            }
        }
        m.addAttribute("activeCard", activeCard);

        return "cardVersionHistory";
    }
}