monitor.setMessage(mLocalizer.msg("updateTvData.progressmessage.10",
"{2}: Searching for updated/new programs on {0} for {1} days",
startDate.toString(), dateCount, channel.getName()));
for (int b = 0; b < dateCount; b++) {
Date testDay = testStart.addDays(b);
String fileDate = createFileName(testDay);
try {
String urlString = internalChannel.getBaseUrl() + internalChannel.getId() + "_" + fileDate + ".xml.gz";
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(Plugin.getPluginManager().getTvBrowserSettings().getDefaultNetworkConnectionTimeout());
conn.setIfModifiedSince(internalChannel.getLastUpdate(testDay));
conn.setRequestMethod("HEAD"); // Only make a HEAD request, to
// see if the file has been
// changed (only get the HTTP
// Header fields).
if (conn.getResponseCode() == 200) {
modifiedDates.add(testDay);
}
mLog.info("mInternalChannel.lastModified=" + internalChannel.getLastUpdate(testDay));
} catch (Exception e) {
throw new TvBrowserException(SweDBTvDataService.class,
"An error occurred in updateTvData",
"Please report this to the developer", e);
}
} // int b
mLog.info("Number of modified days for channel " + internalChannel.getName() + ":" + modifiedDates.size());
monitor.setMessage(mLocalizer.msg("updateTvData.progressmessage.20",
"{0}: Retrieving updated/new programs.", channel.getName()));
/*********************************************************************
* IF we found any modified/missing data, we have to download the
* files before and after each date, since the XMLTV-data files are
* split in UTC-time while provider is in a different timezone. This
* procedure ensures that we get all of the data. (There is a small
* risk that we miss updated data, since we do not verify if the files
* before and after the actual date has been modified - but we do not
* care for now)
********************************************************************/
if (modifiedDates.size() > 0) {
Date prevDate;
Date currDate;
Hashtable<String, Date> fileDates = new Hashtable<String, Date>();
prevDate = new Date((modifiedDates.get(0)).addDays(-1));
fileDates.put(prevDate.getDateString(), prevDate);
for (Date modifiedDate : modifiedDates) {
currDate = modifiedDate;
if (currDate.equals(prevDate.addDays(1))) {
if (!fileDates.containsKey(currDate.getDateString())) {
fileDates.put(currDate.getDateString(), currDate);
}
} else {
Date tempDate = new Date(prevDate.addDays(1));
if (!fileDates.containsKey(tempDate.getDateString())) {
fileDates.put(tempDate.getDateString(), tempDate);
}
tempDate = new Date(currDate.addDays(-1));
if (!fileDates.containsKey(tempDate.getDateString())) {
fileDates.put(tempDate.getDateString(), tempDate);
}
if (!fileDates.containsKey(currDate.getDateString())) {
fileDates.put(currDate.getDateString(), currDate);
}
}
prevDate = currDate;
}// for j
currDate = new Date(prevDate.addDays(1));
if (!fileDates.containsKey(currDate.getDateString())) {
fileDates.put(currDate.getDateString(), currDate);
}
mLog.info(currDate.getDateString());
/*******************************************************************
* OK... So now we are ready to start parsing the selected data
* files
******************************************************************/
Hashtable<String, MutableChannelDayProgram> dataHashtable = new Hashtable<String, MutableChannelDayProgram>();
Enumeration<Date> en = fileDates.elements();
monitor.setMessage(mLocalizer.msg(
"updateTvData.progressmessage.30", "{0}: Reading datafiles",
channel.getName()));
while (en.hasMoreElements()) {
try {
Date date = (en.nextElement());
String strFileDate = createFileName(date);
mLog.info("getting: " + internalChannel.getBaseUrl()
+ internalChannel.getId() + "_" + strFileDate
+ ".xml.gz");
URL url = new URL(internalChannel.getBaseUrl()
+ internalChannel.getId() + "_" + strFileDate
+ ".xml.gz");
HttpURLConnection con = (HttpURLConnection) url
.openConnection();
con.setReadTimeout(Plugin.getPluginManager()
.getTvBrowserSettings()
.getDefaultNetworkConnectionTimeout());
if (con.getResponseCode() == 200) {
DataHydraDayParser.parseNew(IOUtilities.openSaveGZipInputStream(con
.getInputStream()), channel, date, dataHashtable, service);
if (modifiedDates.contains(date)) {
mLog.info("Updating lastUpdate property for date "
+ date.toString());
internalChannel.setLastUpdate(date, con
.getLastModified());
}
}
} catch (Exception e) {
throw new TvBrowserException(SweDBTvDataService.class,
"An error occurred in updateTvData",
"Please report this to the developer", e);
}
}
mLog.info("All of the files have been parsed");
/*******************************************************************
* Now all of the files has been parsed. Time to update the local
* database with our data...
*/
for (Date date : modifiedDates) {
if (dataHashtable.containsKey(date.toString())) {
mLog.info("Updating database for day " + date.toString());
monitor.setMessage(mLocalizer.msg(
"updateTvData.progressmessage.40",
"{0}: Updating database", channel.getName()));
updateManager.updateDayProgram(dataHashtable.get(date
.toString()));
} else {
mLog.info("Strange.... Didn't find the data for "
+ date.toString());
}
}
}
}