edu.cornell.mannlib.vitro.webapp.sparql.GetAllClasses.java Source code

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Here is the source code for edu.cornell.mannlib.vitro.webapp.sparql.GetAllClasses.java

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/* $This file is distributed under the terms of the license in /doc/license.txt$ */
package edu.cornell.mannlib.vitro.webapp.sparql;

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

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import edu.cornell.mannlib.vedit.controller.BaseEditController;
import edu.cornell.mannlib.vitro.webapp.auth.permissions.SimplePermission;
import edu.cornell.mannlib.vitro.webapp.beans.VClass;
import edu.cornell.mannlib.vitro.webapp.beans.VClassGroup;
import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;

/**
 * This servlet gets all the classes for initizing the sparql query builder.
 * 
 * @author yuysun
 */

public class GetAllClasses extends BaseEditController {

    private static final Log log = LogFactory.getLog(GetAllClasses.class);

    /**
     * The doGet method of the servlet. <br>
     * 
     * This method is called when a form has its tag value method equals to get.
     * 
     * @param request
     *            the request send by the client to the server
     * @param response
     *            the response send by the server to the client
     * @throws ServletException
     *             if an error occurred
     * @throws IOException
     *             if an error occurred
     */
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        if (!isAuthorizedToDisplayPage(request, response, SimplePermission.USE_MISCELLANEOUS_PAGES.ACTION)) {
            return;
        }

        VitroRequest vreq = new VitroRequest(request);

        // EditProcessObject epo = super.createEpo(request);

        List classGroups = vreq.getUnfilteredWebappDaoFactory().getVClassGroupDao()
                .getPublicGroupsWithVClasses(true, true, false); // order by
        // displayRank,
        // include
        // uninstantiated
        // classes,
        // don't get
        // the
        // counts of
        // individuals

        Iterator classGroupIt = classGroups.iterator();

        response.setContentType("text/xml");
        response.setCharacterEncoding("UTF-8");
        PrintWriter out = response.getWriter();
        String respo = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
        respo += "<options>";

        while (classGroupIt.hasNext()) {
            VClassGroup group = (VClassGroup) classGroupIt.next();
            List classes = group.getVitroClassList();
            Iterator classIt = classes.iterator();
            while (classIt.hasNext()) {
                VClass clazz = (VClass) classIt.next();
                respo += "<option>" + "<key>" + clazz.getPickListName() + "</key>" + "<value>" + clazz.getURI()
                        + "</value>" + "</option>";
            }
        }
        respo += "</options>";
        out.println(respo);
        out.flush();
        out.close();
    }

    /**
     * The doPost method of the servlet. <br>
     * 
     * This method is called when a form has its tag value method equals to
     * post.
     * 
     * @param request
     *            the request send by the client to the server
     * @param response
     *            the response send by the server to the client
     * @throws ServletException
     *             if an error occurred
     * @throws IOException
     *             if an error occurred
     */
    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        doGet(request, response);
    }

}