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

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

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/**********************************************************************************
 * $URL$
 * $Id$
 ***********************************************************************************
 *
 * Copyright (c) 2008 Etudes, Inc.
 * 
 * Portions completed before September 1, 2008
 * Copyright (c) 2007, 2008 The Regents of the University of Michigan & Foothill College, ETUDES Project
 *
 * 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.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.api.Values;
import org.etudes.ambrosia.util.ControllerImpl;
import org.etudes.mneme.api.Assessment;
import org.etudes.mneme.api.AssessmentPermissionException;
import org.etudes.mneme.api.AssessmentPolicyException;
import org.etudes.mneme.api.AssessmentService;
import org.sakaiproject.tool.api.ToolManager;
import org.sakaiproject.util.Web;

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

    /** Assessment service. */
    protected AssessmentService assessmentService = null;

    /** tool manager reference. */
    protected ToolManager toolManager = null;

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

    /**
     * {@inheritDoc}
     */
    public void get(HttpServletRequest req, HttpServletResponse res, Context context, String[] params)
            throws IOException {
        // security
        if (!this.assessmentService.allowManageAssessments(toolManager.getCurrentPlacement().getContext())) {
            // redirect to error
            res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, "/error/" + Errors.unauthorized)));
            return;
        }

        // we carry a sort for the /tests mode
        String sort = "";
        if (params.length == 3) {
            sort = params[2];
        }
        context.put("sort", sort);

        // collect the archived assessments in this context
        List<Assessment> assessments = this.assessmentService
                .getArchivedAssessments(this.toolManager.getCurrentPlacement().getContext());
        context.put("archived", assessments);

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

        // for the selected tests to delete
        Values values = this.uiService.newValues();
        context.put("ids", values);

        // read the form
        String destination = uiService.decode(req, context);

        // restore
        for (String id : values.getValues()) {
            Assessment assessment = this.assessmentService.getAssessment(id);
            if (assessment != null) {
                assessment.setArchived(Boolean.FALSE);
                try {
                    this.assessmentService.saveAssessment(assessment);
                } catch (AssessmentPermissionException e) {
                    // redirect to error
                    res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, "/error/" + Errors.unauthorized)));
                    return;
                } catch (AssessmentPolicyException e) {
                    // redirect to error
                    res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, "/error/" + Errors.policy)));
                    return;
                }
            }
        }

        res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
    }

    /**
     * Set the AssessmentService.
     * 
     * @param service
     *        The AssessmentService.
     */
    public void setAssessmentService(AssessmentService service) {
        this.assessmentService = service;
    }

    /**
     * Set the tool manager.
     * 
     * @param manager
     *        The tool manager.
     */
    public void setToolManager(ToolManager manager) {
        this.toolManager = manager;
    }
}