mml.handler.get.MMLCorformHandler.java Source code

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Here is the source code for mml.handler.get.MMLCorformHandler.java

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/*
 * This file is part of MML.
 *
 *  MML is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  MML is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with MML.  If not, see <http://www.gnu.org/licenses/>.
 *  (c) copyright Desmond Schmidt 2016
 */

package mml.handler.get;

import calliope.core.constants.Database;
import calliope.core.database.Connection;
import calliope.core.constants.JSONKeys;
import calliope.core.database.Connector;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import mml.exception.MMLException;
import org.json.simple.JSONValue;
import org.json.simple.JSONObject;

/**
 * Fetch a corform resource
 * @author desmond
 */
public class MMLCorformHandler extends MMLResourceHandler {
    public MMLCorformHandler() {
        super(Database.CORFORM);
    }

    /**
    * Handle the request
    * @param request the request
    * @param response the response
    * @param urn the remaining urn of the request
    * @throws MMLException 
    */
    public void handle(HttpServletRequest request, HttpServletResponse response, String urn) throws MMLException {
        try {
            String jBody = null;
            docid = request.getParameter(JSONKeys.DOCID);
            if (docid != null) {
                Connection conn = Connector.getConnection();
                String jStr = conn.getFromDb(Database.CORTEX, docid);
                JSONObject jObj = (JSONObject) JSONValue.parse(jStr);
                String style = (String) jObj.get(JSONKeys.STYLE);
                jStr = conn.getFromDb(Database.CORFORM, style);
                if (jStr == null)
                    jBody = getDefaultResource(docid);
                else {
                    jObj = (JSONObject) JSONValue.parse(jStr);
                    jBody = (String) jObj.get(JSONKeys.BODY);
                }
            } else
                jBody = getDefaultResource("default");
            setEncoding(request);
            response.setContentType("text/plain");
            response.setCharacterEncoding(encoding);
            response.getWriter().println(jBody);
        } catch (Exception e) {
            throw new MMLException(e);
        }
    }

}