@Override
protected Document doInBackground(RouteParams... params) {
if (params.length == 0) return null;
RouteParams par = params[0];
String cached = null, xmlstring = null;
if (!par.force_download) cached = getCached(par.train_number);
if (cached != null
&& checkTable(cached, par.departure, par.deptime)
&& checkTable(cached, par.arrival, par.arrtime)) xmlstring = cached;
else {
if (!CommonUtils.onlineCheckSilent()) return null;
isCached = false;
publishProgress();
String data =
"start=yes&REQTrain_name="
+ par.train_number
+ "&date="
+ par.date
+ "&time="
+ par.deptime
+ "&sTI=1&dirInput="
+ par.arrival
+ "&L=vs_java3&input="
+ par.departure
+ "&boardType="
+ par.type;
String url = "http://rozklad.sitkol.pl/bin/stboard.exe/pn";
try {
DefaultHttpClient client = new DefaultHttpClient();
HttpPost request = new HttpPost(url);
client.removeRequestInterceptorByClass(
org.apache.http.protocol.RequestExpectContinue.class);
client.removeRequestInterceptorByClass(org.apache.http.protocol.RequestUserAgent.class);
request.addHeader("Content-Type", "text/plain");
request.setEntity(new StringEntity(data));
InputStream inputStream = client.execute(request).getEntity().getContent();
ByteArrayOutputStream content = new ByteArrayOutputStream();
int readBytes = 0;
while ((readBytes = inputStream.read(sBuffer)) != -1) {
content.write(sBuffer, 0, readBytes);
}
xmlstring = new String(content.toByteArray());
xmlstring = xmlstring.replace("< ", "<");
saveInCache(par.train_number, xmlstring);
} catch (Exception e) {
return null;
}
}
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder db = factory.newDocumentBuilder();
InputSource inStream = new InputSource();
inStream.setCharacterStream(new StringReader("<a>" + xmlstring + "</a>"));
return db.parse(inStream);
} catch (Exception e) {
return null;
}
}
