org.servalproject.maps.bridge.json.FistJsonMaker.java Source code

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Here is the source code for org.servalproject.maps.bridge.json.FistJsonMaker.java

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/*
 * Copyright (C) 2012 The Serval Project
 *
 * This file is part of the Serval Maps - FIST Bridge
 *
 * Serval Maps - FIST Bridge Software 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 3 of the License, or
 * (at your option) any later version.
 *
 * This source code 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 this source code; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.servalproject.maps.bridge.json;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.servalproject.maps.PointsOfInterestContract;

import android.content.ContentValues;

public class FistJsonMaker {

    /*
     * private class level constants
     */
    private static final String sImei = "100000000000001";
    private static final int sMessageCode = 3;

    private static final String[] sAddresses = { "2078005752244", "support@delorme.com", "maps@servalproject.org" };

    private static final int sMissingPointValues = 0;

    private static final int sMissingStatusValues = 0;

    /**
     * take a table row as represented by a ContentValues object and return a JSON encoded string
     * @param values a ContentValues object representing a row in the database
     * @return a JSON encoded string of the data
     * @throws JSONException if the encode to JSON fails
     */
    public static String makePoiJson(ContentValues values) throws JSONException {

        // construct the JSON objects / arrays

        //add boilerplate to the container
        JSONObject mContainer = new JSONObject();
        mContainer.put("Version", "1.0");

        // build the event object
        JSONObject mEvent = new JSONObject();
        mEvent.put("imei", sImei);
        mEvent.put("messageCode", sMessageCode);
        mEvent.put("freeText", values.get(PointsOfInterestContract.Table.TITLE) + "<br/>"
                + values.get(PointsOfInterestContract.Table.DESCRIPTION));
        mEvent.put("timeStamp", values.get(PointsOfInterestContract.Table.TIMESTAMP));

        // build the addresses array
        JSONArray mAddresses = new JSONArray();

        for (String mAddress : sAddresses) {
            mAddresses.put(new JSONObject().put("address", mAddress));
        }
        ;

        mEvent.put("addresses", mAddresses);

        // build the point object
        JSONObject mPoint = new JSONObject();
        mPoint.put("latitude", values.get(PointsOfInterestContract.Table.LATITUDE));
        mPoint.put("longitude", values.get(PointsOfInterestContract.Table.LONGITUDE));
        mPoint.put("altitude", values.get(PointsOfInterestContract.Table.ALTITUDE));
        mPoint.put("gpsfix", values.get(PointsOfInterestContract.Table.ACCURACY));
        mPoint.put("course", sMissingPointValues);
        mPoint.put("speed", sMissingPointValues);

        // add the point object
        mEvent.put("point", mPoint);

        // build the status object
        JSONObject mStatus = new JSONObject();
        mStatus.put("autonomous", sMissingStatusValues);
        mStatus.put("lowBattery", sMissingStatusValues);
        mStatus.put("intervalChange", sMissingStatusValues);

        mEvent.put("status", mStatus);

        // build the events array
        JSONArray mEvents = new JSONArray();
        mEvents.put(mEvent);

        // finalise the object
        mContainer.put("Events", mEvents);

        return mContainer.toString();
    }
}