org.etudes.mneme.tool.AssessmentExportView.java Source code

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Here is the source code for org.etudes.mneme.tool.AssessmentExportView.java

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/**********************************************************************************
 * $URL: https://source.etudes.org/svn/apps/mneme/trunk/mneme-tool/tool/src/java/org/etudes/mneme/tool/AssessmentExportView.java $
 * $Id: AssessmentExportView.java 6527 2013-12-06 23:01:08Z rashmim $
 ***********************************************************************************
 *
 * Copyright (c) 2013 Etudes, Inc.
 *
 * 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.
 *
 **********************************************************************************/

package org.etudes.mneme.tool;

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

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.etudes.ambrosia.api.Context;
import org.etudes.ambrosia.util.ControllerImpl;
import org.etudes.mneme.api.Assessment;
import org.etudes.mneme.api.AssessmentService;
import org.etudes.mneme.api.AttachmentService;
import org.sakaiproject.entity.api.Reference;
import org.sakaiproject.entity.cover.EntityManager;
import org.sakaiproject.exception.IdUnusedException;
import org.sakaiproject.site.cover.SiteService;
import org.sakaiproject.tool.api.ToolManager;
import org.sakaiproject.util.StringUtil;
import org.sakaiproject.util.Web;

/**
 * The /question_copy view for the mneme tool.
 */
public class AssessmentExportView extends ControllerImpl {
    /** Our log. */
    private static Log M_log = LogFactory.getLog(AssessmentExportView.class);

    /** Dependency: ToolManager */
    protected ToolManager toolManager = null;

    private AssessmentService assessmentService = null;

    /**
     * Shutdown.
     */
    public void destroy() {
        M_log.info("destroy()");
    }

    /**
     * {@inheritDoc}
     */
    public void get(HttpServletRequest req, HttpServletResponse res, Context context, String[] params)
            throws IOException {
        //[, assessment_export, 1679] - params

        String assessmentIds = params[2];

        // security
        if (!this.assessmentService.allowManageAssessments(toolManager.getCurrentPlacement().getContext())) {
            // redirect to error
            res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, "/error/" + Errors.unauthorized)));
            return;
        }

        if (assessmentIds == null) {
            // redirect to error
            res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, "/error/" + Errors.invalid)));
            return;
        }
        String[] ids = StringUtil.split(assessmentIds, "+");
        List<Assessment> assessments = new ArrayList<Assessment>();

        for (String aId : ids) {
            Assessment assessment = this.assessmentService.getAssessment(aId);
            if (assessment != null)
                assessments.add(assessment);
        }
        context.put("assessments", assessments);

        //exportZipName
        String zipTitle;
        String siteId = null;
        try {
            siteId = toolManager.getCurrentPlacement().getContext();
            zipTitle = SiteService.getSite(siteId).getTitle();
        } catch (IdUnusedException e) {
            zipTitle = "ExportAssessments";
        }
        Integer countAssessments = this.assessmentService.countAssessments(siteId);
        if (countAssessments.intValue() == ids.length)
            zipTitle = zipTitle + "_allAssessments.zip";
        else
            zipTitle = zipTitle + "_someAssessments.zip";

        Reference ref = EntityManager.newReference("/mneme/" + AttachmentService.DOWNLOAD + "/"
                + AttachmentService.ASMT_EXPORT + "/" + siteId + "/" + assessmentIds + ".zip");

        context.put("exportZipName", ref);

        // render
        uiService.render(ui, context);
    }

    /**
     * Final initialization, once all dependencies are set.
     */
    public void init() {
        super.init();
        M_log.info("init()");
    }

    /**
     * {@inheritDoc}
     */
    public void post(HttpServletRequest req, HttpServletResponse res, Context context, String[] params)
            throws IOException {
        // read form
        String destination = this.uiService.decode(req, context);
        res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
    }

    /**
     * @param assessmentService
     *        the assessmentService to set
     */
    public void setAssessmentService(AssessmentService assessmentService) {
        this.assessmentService = assessmentService;
    }

    /**
     * @param toolManager
     *        the toolManager to set
     */
    public void setToolManager(ToolManager toolManager) {
        this.toolManager = toolManager;
    }
}