/*
* Copyright (C) 2012- Peer internet solutions & Finalist IT Group
*
* This file is part of mixare.
*
* This program 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 program 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 program. If not, see <http://www.gnu.org/licenses/>
*/
package org.mixare.data.convert;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.mixare.MixView;
import org.mixare.POIMarker;
import org.mixare.data.DataHandler;
import org.mixare.data.DataSource;
import org.mixare.lib.HtmlUnescape;
import org.mixare.data.convert.DataProcessor;
import org.mixare.lib.marker.Marker;
import android.util.Log;
/**
* A data processor for wikipedia urls or data, Responsible for converting raw data (to json and then) to marker data.
* @author A. Egal
*/
public class WikiDataProcessor extends DataHandler implements DataProcessor{
public static final int MAX_JSON_OBJECTS = 1000;
@Override
public String[] getUrlMatch() {
String[] str = {"wiki"};
return str;
}
@Override
public String[] getDataMatch() {
String[] str = {"wiki"};
return str;
}
@Override
public boolean matchesRequiredType(String type) {
if(type.equals(DataSource.TYPE.WIKIPEDIA.name())){
return true;
}
return false;
}
@Override
public List<Marker> load(String rawData, int taskId, int colour) throws JSONException {
List<Marker> markers = new ArrayList<Marker>();
JSONObject root = convertToJSON(rawData);
JSONArray dataArray = root.getJSONArray("geonames");
int top = Math.min(MAX_JSON_OBJECTS, dataArray.length());
for (int i = 0; i < top; i++) {
JSONObject jo = dataArray.getJSONObject(i);
Marker ma = null;
if (jo.has("title") && jo.has("lat") && jo.has("lng")
&& jo.has("elevation") && jo.has("wikipediaUrl")) {
Log.v(MixView.TAG, "processing Wikipedia JSON object");
//no unique ID is provided by the web service according to http://www.geonames.org/export/wikipedia-webservice.html
ma = new POIMarker(
"",
HtmlUnescape.unescapeHTML(jo.getString("title"), 0),
jo.getDouble("lat"),
jo.getDouble("lng"),
jo.getDouble("elevation"),
"http://"+jo.getString("wikipediaUrl"),
taskId, colour);
markers.add(ma);
}
}
return markers;
}
private JSONObject convertToJSON(String rawData){
try {
return new JSONObject(rawData);
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
}