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package com.example.chap_7_earthquake_part_2_c;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.GregorianCalendar;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
public class EarthquakeListFragment extends ListFragment {
ArrayAdapter<Quake> aa;
ArrayList<Quake> earthquakes = new ArrayList<Quake>();
public String location = "";
public String depth;
public static String TAG = "EARTHQUAKE_ListFragment";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.liste_fragment, container, false);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
int layoutID = android.R.layout.simple_list_item_1;
aa = new ArrayAdapter<Quake>(getActivity(), layoutID , earthquakes);
setListAdapter(aa);
refreshEarthquakes();
}
//--------------------------------------------------------
public void refreshEarthquakes() {
// Get the XML
URL url;
try {
String quakeFeed = getString(R.string.quake_feed);
url = new URL(quakeFeed);
URLConnection connection;
connection = url.openConnection();
HttpURLConnection httpConnection = (HttpURLConnection)connection;
int responseCode = httpConnection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
InputStream in = httpConnection.getInputStream();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
// Parse the earthquake feed.
Document dom = db.parse(in);
Element docEle = dom.getDocumentElement();
// Clear the old earthquakes
earthquakes.clear();
// Get a list of each earthquake entry.
NodeList nl = docEle.getElementsByTagName("entry");
if (nl != null && nl.getLength() > 0) {
for (int i = 0 ; i < nl.getLength(); i++) {
Element entry = (Element)nl.item(i);
Element title = (Element)entry.getElementsByTagName("title").item(0);
Element when = (Element)entry.getElementsByTagName("updated").item(0);
Element link = (Element)entry.getElementsByTagName("link").item(0);
Element summary = (Element)entry.getElementsByTagName("summary").item(0);
Element g = (Element)entry.getElementsByTagName("georss:point").item(0);
Element d = (Element)entry.getElementsByTagName("georss:elev").item(0);
if (title!= null) Log.d("pas null ","pas null title");
Log.d("vanleur de Title ",title.getFirstChild().getNodeValue());
if (when!= null) Log.d("pas null ","pas null when");
if (link!= null) {
Log.d("pas null ","pas null link");
}
if (summary!= null) Log.d("pas null ","pas null summary");
if (g!= null) Log.d("pas null ","pas null");
// Le titre
//----------
String details = title.getFirstChild().getNodeValue();
if (details.equals("Data Feed Deprecated")) details = "USGS M 2.5+ Earthquakes";
// La date
// -------
String dt = when.getFirstChild().getNodeValue();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss'Z'");
Date qdate = new GregorianCalendar(0,0,0).getTime();
try {
qdate = sdf.parse(dt);
} catch (ParseException e) {
}
// Localisation : latitude Longitude
// -----------------------------------
if (g!= null){
location = g.getFirstChild().getNodeValue();
Log.d("CI ","ICI");
}
// Profondeur
// -----------
if (d!= null){
depth = d.getFirstChild().getNodeValue();
Log.d("Depth ",depth);
}
// Magnitude
String magnitudeString = details.split(" ")[1];
int end = magnitudeString.length()-1;
String magnitude_S = ((magnitudeString.substring(0, end))+ "0").trim();
double magnitude = Double.parseDouble(magnitude_S);
Quake quake = new Quake(qdate,details,location,magnitude,depth);
// Process a newly found earthquake
addNewQuake(quake);
}
}
}
} catch (MalformedURLException e) {
Log.d(TAG, "MalformedURLException", e);
} catch (IOException e) {
Log.d(TAG, "IOException", e);
} catch (ParserConfigurationException e) {
Log.d(TAG, "Parser Configuration Exception", e);
} catch (SAXException e) {
Log.d(TAG, "SAX Exception", e);
}
finally {
}
}
private void addNewQuake(Quake _quake) {
MainActivity earthquakeActivity = (MainActivity)getActivity();
if (_quake.getMagnitude() > earthquakeActivity.minimumMagnitude) {
// Add the new quake to our list of earthquakes.
earthquakes.add(_quake);
}
// Notify the array adapter of a change.
aa.notifyDataSetChanged();
}
} |
