PlayActivity.java

/*  Subspace Mobile - A Android Subspace Client
    Copyright (C) 2012 Kingsley Masters. All Rights Reserved.
    
    kingsley dot masters at gmail dot com

    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 com.subspace.redemption;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import com.subspace.android.ZoneAdapter;
import com.subspace.network.NetworkPing;
import com.subspace.network.PingInfo;
import com.subspace.redemption.database.DataHelper;
import com.subspace.redemption.dataobjects.Zone;

import android.app.ListActivity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import android.widget.Toast;

public class PlayActivity extends ListActivity {

	private static final String TAG = "Subspace";

	List<Zone> zones;
	ZoneAdapter adapter;
	DataHelper db;
	List<PingTask> pingTasks = new ArrayList<PingTask>();

	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.play_activity);

		zones = new CopyOnWriteArrayList<Zone>();
		adapter = new ZoneAdapter(this, R.layout.zone_item, zones, true);
		db = new DataHelper(this);

		setListAdapter(adapter);
	}

	@Override
	protected void onStart() {
		super.onStart();
	}

	@Override
	protected void onResume() {
		// TODO Auto-generated method stub
		super.onResume();
		zones.clear();
		zones.addAll(db.getAllZones());
		adapter.notifyDataSetChanged();
		// now ping all

		for (Zone zone : zones) {
			PingTask pingTask = new PingTask();
			pingTasks.add(pingTask);
			pingTask.execute(zone);
		}
	}

	@Override
	protected void onPause() {
		// TODO Auto-generated method stub
		super.onPause();

		for (PingTask pingTask : pingTasks) {
			pingTask.cancel(true);
		}
	}

	@Override
	protected void onListItemClick(ListView l, View v, int position, long id) {
		super.onListItemClick(l, v, position, id);

		Zone selectedValue = (Zone) getListAdapter().getItem(position);
		Toast.makeText(this, selectedValue.Name, Toast.LENGTH_SHORT).show();

		Intent moreDetailsIntent = new Intent(this, ConnectActivity.class);

		Bundle dataBundle = new Bundle();
		dataBundle.putInt("SelectedZone", selectedValue.Id);
		moreDetailsIntent.putExtras(dataBundle);
		startActivity(moreDetailsIntent);
	}

	private class PingTask extends AsyncTask<Zone, Void, Void> {

		NetworkPing netping;

		@Override
		protected Void doInBackground(Zone... params) {

			if (!isCancelled()) {
				Zone zone = params[0];

				PingInfo result = null;
				Log.i(TAG, "Pinging " + zone.Name);

				netping = new NetworkPing();
				try {
					result = netping.Ping(zone.Ip, zone.Port);
				} catch (IOException e) {
					// TODO Auto-generated catch block
					Log.e(TAG, Log.getStackTraceString(e));					
				}

				if (result != null) {
					Log.i(TAG, "Players: " + result.Count + "  Ping: "
							+ result.Ping);
					zone.Population = result.Count;
					zone.Ping = result.Ping;
				}
			}

			return null;
		}

		@Override
		protected void onCancelled() {
			// cancel pings
			if(netping!=null)
			{
				netping.Abort();
			}
		}

		@Override
		protected void onPostExecute(Void result) {

			adapter.notifyDataSetChanged();

		}

		@Override
		protected void onPreExecute() {
		}

		@Override
		protected void onProgressUpdate(Void... values) {
		}
	}
}