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

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

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/**********************************************************************************
 * $URL$
 * $Id$
 ***********************************************************************************
 *
 * Copyright (c) 2008,2009 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 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.Value;
import org.etudes.ambrosia.util.ControllerImpl;
import org.sakaiproject.authz.api.SecurityService;
import org.sakaiproject.util.Web;

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

    /** Dependency: SecurityService. */
    protected SecurityService securityService = null;

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

    /**
     * {@inheritDoc}
     */
    public void get(HttpServletRequest req, HttpServletResponse res, Context context, String[] params) {
        // if not logged in as the super user, we won't do anything
        if (!securityService.isSuperUser()) {
            throw new IllegalArgumentException();
        }

        // no parameters expected
        if (params.length != 2) {
            throw new IllegalArgumentException();
        }

        // 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 {
        if (!context.getPostExpected()) {
            throw new IllegalArgumentException();
        }

        // no parameters expected
        if (params.length != 2) {
            throw new IllegalArgumentException();
        }

        // read form
        Value installValue = this.uiService.newValue();
        context.put("installValue", installValue);
        Value installBulkValue = this.uiService.newValue();
        context.put("installBulkValue", installBulkValue);
        Value poolRmDupsContext = this.uiService.newValue();
        context.put("poolRmDupsContext", poolRmDupsContext);
        Value poolRmContext = this.uiService.newValue();
        context.put("poolRmContext", poolRmContext);

        String destination = uiService.decode(req, context);

        if ("INSTALL".equals(destination)) {
            if (installValue.getValue() != null) {
                // add the specs
                destination = "/install/" + installValue.getValue();
                res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
                return;
            }
        }

        else if ("INSTALL_BULK".equals(destination)) {
            if (installBulkValue.getValue() != null) {
                // add the specs
                destination = "/install_bulk/" + installBulkValue.getValue();
                res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
                return;
            }
        }

        else if ("QUESTION_CLEANUP".equals(destination)) {
            destination = "/question_cleanup";
            res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
            return;
        }

        else if ("INSTALL_TEMPLATES".equals(destination)) {
            destination = "/install_templates";
            res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
            return;
        }

        else if ("POOL_RM_DUPS".equals(destination)) {
            if (poolRmDupsContext.getValue() != null) {
                destination = "/pool_rm_dups/" + poolRmDupsContext.getValue();
                res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
                return;
            }
        }

        else if ("POOL_RM".equals(destination)) {
            if (poolRmContext.getValue() != null) {
                destination = "/pool_rm/" + poolRmContext.getValue();
                res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
                return;
            }
        }

        destination = "/home";
        res.sendRedirect(res.encodeRedirectURL(Web.returnUrl(req, destination)));
    }

    /**
     * Set the security service.
     * 
     * @param service
     *        The security service.
     */
    public void setSecurityService(SecurityService service) {
        this.securityService = service;
    }
}