org.schtief.partybolle.event.EventManager.java Source code

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Here is the source code for org.schtief.partybolle.event.EventManager.java

Source

package org.schtief.partybolle.event;

import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.schtief.partybolle.PartyBolle;
import org.schtief.util.json.JSONArray;
import org.schtief.util.json.JSONObject;
import org.schtief.util.json.JSONTokener;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Handler;
import android.util.Log;
import android.widget.Toast;

import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapView;

/**
Copyright by Stefan Lischke a.k.a Mister Schtief 
started in 2010 in Berlin Germany
    
This file is part of PartyBolle.
    
PartyBolle 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.
    
PartyBolle 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 PartyBolle.  If not, see <http://www.gnu.org/licenses/>.
*/
public class EventManager {
    private Handler handler;
    private PartyBolle app;
    private MapView mapView;

    public EventManager(PartyBolle a, MapView m, Handler h) {
        this.app = a;
        this.handler = h;
        this.mapView = m;
    }

    public void getEvents(String type) {
        GeoPoint center = mapView.getMapCenter();

        //check for Events in Berlin
        if (center.getLatitudeE6() < 52000000 || center.getLatitudeE6() > 53000000
                || center.getLongitudeE6() < 13000000 || center.getLongitudeE6() > 14000000) {
            AlertDialog.Builder builder = new AlertDialog.Builder(this.app);
            builder.setMessage("Alder ick komm aus Berlin, keene Ahnung wat in deinem Kaff los ist!")
                    .setCancelable(false)
                    .setPositiveButton("Ich helf dir mit Events fr hier", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                            dialog.cancel();
                            //TODO twidroid ansprechen
                        }
                    }).setNegativeButton("Ok OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                            dialog.cancel();
                        }
                    });
            AlertDialog alert = builder.create();
            alert.show();
        }
        int lat1 = center.getLatitudeE6() - mapView.getLatitudeSpan() / 2;
        int lat2 = center.getLatitudeE6() + mapView.getLatitudeSpan() / 2;

        int lon1 = center.getLongitudeE6() - mapView.getLongitudeSpan() / 2;
        int lon2 = center.getLongitudeE6() + mapView.getLongitudeSpan() / 2;

        new GetEventsThread(lat1, lon1, lat2, lon2, type).start();
    }

    private class GetEventsThread extends Thread {
        int lat1, lon1, lat2, lon2;
        String type;

        public GetEventsThread(int lat1, int lon1, int lat2, int lon2, String type) {
            super();
            this.lat1 = lat1;
            this.lon1 = lon1;
            this.lat2 = lat2;
            this.lon2 = lon2;
            this.type = type;
        }

        @Override
        public void run() {
            DefaultHttpClient httpclient = new DefaultHttpClient();
            String uri = "http://partyumkreis.appspot.com/partyumkreis?action=getdata&lat1=" + lat1 + "&lon1="
                    + lon1 + "&lat2=" + lat2 + "&lon2=" + lon2;
            Log.i("EventManager", "request " + uri);
            if (null != type)
                uri += "&type=" + type;

            HttpGet httget = new HttpGet(uri);
            HttpResponse response;
            try {
                response = httpclient.execute(httget);
                HttpEntity responseEntity = response.getEntity();
                InputStream is = responseEntity.getContent();
                JSONObject jsonObject = new JSONObject(new JSONTokener(new InputStreamReader(is, "ISO-8859-1")));
                final JSONArray locations = jsonObject.getJSONArray("locations");
                Log.i(PartyBolle.LOG_TAG, "recieved events " + locations.length());

                handler.post(new Runnable() {
                    public void run() {
                        Toast.makeText(app, "list Transaction", Toast.LENGTH_SHORT).show();
                        app.update(locations);
                    }
                });

            } catch (Exception e) {
                //            Toast.makeText(this, "Exception " + e.getMessage(),
                //                  Toast.LENGTH_LONG).show();
            }
        }

    }
}