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

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

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/**********************************************************************************
 * $URL$
 * $Id$
 ***********************************************************************************
 *
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 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.File;
import java.io.IOException;
import java.util.zip.ZipInputStream;

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.AssessmentPermissionException;
import org.etudes.mneme.api.ImportQti2Service;
import org.etudes.mneme.api.ImportQtiService;
import org.etudes.mneme.api.PoolService;
import org.sakaiproject.tool.api.ToolManager;
import org.sakaiproject.util.Web;
import org.w3c.dom.Document;

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

    /** Dependency: ImportQtiService */
    protected ImportQtiService importQtiService = null;

    /** Dependency: ImportQtiService */
    protected ImportQti2Service importQti2Service = null;

    /** Pool Service */
    protected PoolService poolService = 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 {

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

        String returnUrl = (params.length > 3) ? params[2] : "";
        String sort = (params.length > 3) ? params[3] : "0A";

        context.put("returnUrl", returnUrl);
        context.put("sort", sort);

        // 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 {

        String returnUrl = (params.length > 3) ? params[2] : "";
        String sort = (params.length > 3) ? params[3] : "0A";

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

        // an XML uploader for the QTI file
        UploadXml upload = new UploadXml();
        context.put("upload", upload);

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

        // import the pools
        if ("IMPORT".equals(destination)) {
            // the DOM is in the upload
            Document doc = upload.getUpload();

            try {
                String unzipBackUpLocation = upload.getUnzipLocation();
                if ("".equals(unzipBackUpLocation)) {
                    this.importQtiService.importPool(doc, toolManager.getCurrentPlacement().getContext());
                } else {
                    //QTI 1 zip file 
                    boolean doneQTI1 = false;
                    doneQTI1 = this.importQtiService.importPool(doc, toolManager.getCurrentPlacement().getContext(),
                            unzipBackUpLocation);
                    // QTI 2 zip file
                    if (!doneQTI1)
                        this.importQti2Service.importPool(doc, toolManager.getCurrentPlacement().getContext(),
                                unzipBackUpLocation);
                    upload.deleteFiles(new File(unzipBackUpLocation));
                }
            } catch (AssessmentPermissionException e) {
                // redirect to error
                res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, "/error/" + Errors.unauthorized)));
                return;
            }
            destination = "/" + returnUrl + "/" + sort;
        }
        res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));

    }

    /**
     * Set the ImportQtiService
     * 
     * @param service
     *        the ImportQtiService.
     */
    public void setImportQtiService(ImportQtiService service) {
        this.importQtiService = service;
    }

    /**
     * Set the ImportQti2Service
     * 
     * @param service
     *        the ImportQti2Service.
     */
    public void setImportQti2Service(ImportQti2Service importQti2Service) {
        this.importQti2Service = importQti2Service;
    }

    /**
     * @param poolService
     *        the poolService to set
     */
    public void setPoolService(PoolService poolService) {
        this.poolService = poolService;
    }

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