public void run() {
Manager manager = Manager.getInstance();
if (manager.getFormatFile() == 1) { // if file format =1, start XML Parser
xmlFile.downloadFile();
synchronized (xmlParseThread) {
xmlParseThread.notify();
}
}
if (manager.getFormatFile() == 2) { // if file format = 2, start JSON Parser
jsonFile.downloadFile();
synchronized (jsonParseThread) {
jsonParseThread.notify();
}
}
}
public static void main(String[] args) {
List<String> feeds = new ArrayList<String>();
IPreferences pref = Manager.getPreferences();
String[] rssFeeds = pref.getRssFeeds();
for (String url : rssFeeds) {
feeds.add(url);
}
RSSMonitor monitor = new RSSMonitor(feeds);
long timeSplit = pref.getTimeBetweenRssChecksMs();
long nextCheck = System.currentTimeMillis() + timeSplit;
while (true) {
List<String> links = monitor.getNewLinks();
Runnable analyzer = monitor.new LinkAnalyzerRunnable(links);
Thread thread = new Thread(analyzer);
thread.start();
// System.out.println("New
// Links\n-------------------------------------------------------------------------");
// for (String link: links){
// System.out.println(link);
// }
while (System.currentTimeMillis() < nextCheck) {}
nextCheck += timeSplit;
}
}
public List<String> getNewLinks() {
List<String> ret = new ArrayList<String>();
Set<String> oldSet = lastCheckLinks;
lastCheckLinks = new HashSet<String>();
// check to see if it is the first time that this method has been called since construction of
// the object
boolean firstTime = false;
if (oldSet == null) {
firstTime = true;
}
for (String feed : feeds) {
List<String> links = checkFeed(feed);
// if it is the first time running check with database to see if a link has been added or not
if (firstTime) {
IDatabase db = Manager.getDatabase();
for (String link : links) {
if (!db.articleExists(link)) {
ret.add(link);
lastCheckLinks.add(link);
}
}
}
// if it isn't the first time running use the already cached set to determine repeats.
else {
for (String link : links) {
// just add it to the new lastCheckLinks set don't add it to the return array since it's
// already been returned before
if (oldSet.contains(link)) {
lastCheckLinks.add(link);
}
// add to both new lastCheckLinks set and the return List
else {
lastCheckLinks.add(link);
ret.add(link);
}
}
}
}
return ret;
}
@Override
public void run() {
ArticleAggregator agg = new ArticleAggregator();
IDatabase db = Manager.getDatabase();
SourceParser parser = new SourceParser();
int counter = 0;
for (String link : links) {
Article article = parser.parse(new Source(link));
// if the article object is null that means an error occurred while parsing the link look in
// error log file for reason
if (article != null) {
counter++;
System.out.println(counter + " " + link);
Story matchedStory = agg.matchArticle(article);
// if null was returned from the aggregator a new Story entry must be made because there
// is no good match in the database
if (matchedStory == null) {
// use the values of the article to set up the Story
Story story = new Story();
// TODO come up with better way of choosing category than taking the category from the
// article
story.setCategory(article.getCategory());
story.setTitle(article.getTitle());
story.setDate(article.getDate());
// id will be set when the store method is carried out
db.storeStory(story);
article.setStoryID(story.getID());
}
// if matchedStory isn't null it was matched to an already existing Story entry
else {
article.setStoryID(matchedStory.getID());
}
db.storeArticle(article);
}
// if (counter > ){
//// db.printArticleTable();
// System.exit(0);
// }
}
}
public void jsonParser() {
int iterator = 0;
Manager manager = Manager.getInstance(); // Create the object of singleton
Element jacksonElement = new Element();
JsonFactory jsonFactory = new JsonFactory();
try {
File f = new File(FileDownload.getFileName());
JsonParser parser = jsonFactory.createParser(f);
// Parse the file by Jackson parser
while (!parser.isClosed()) {
JsonToken jsonToken = parser.nextToken();
if (JsonToken.FIELD_NAME.equals(jsonToken)) {
String fieldName = parser.getCurrentName();
jsonToken = parser.nextToken();
// The JSON file has the next fields:
// location,date,name and object stock (this object
// includes:name,bid,id,visible,minPrice,maxPrice)
if ("location".equals(fieldName)) {
manager.setLocation(parser.getValueAsString());
}
if ("date".equals(fieldName)) {
manager.setDate(parser.getValueAsString());
}
if ("name".equals(fieldName) && (parser.getValueAsString().equals("Moscow Stock")))
manager.setName(parser.getValueAsString());
if ("bid".equals(fieldName)) {
jacksonElement.setBid(parser.getValueAsDouble());
iterator++;
} else if ("id".equals(fieldName)) {
jacksonElement.setId(parser.getValueAsInt());
iterator++;
} else if ("name".equals(fieldName)
&& (!parser.getValueAsString().equals("Moscow Stock"))) {
jacksonElement.setName(
parser.getValueAsString().substring(0, parser.getValueAsString().length() - 4));
iterator++;
} else if ("minPrice".equals(fieldName)) {
jacksonElement.setMinPrice(parser.getValueAsDouble());
iterator++;
} else if ("maxPrice".equals(fieldName)) {
jacksonElement.setMaxPrice(parser.getValueAsDouble());
iterator++;
} else if ("visible".equals(fieldName)) {
jacksonElement.setVisible(parser.getValueAsBoolean());
iterator++;
}
if (iterator == 6) {
manager.setJsonList(jacksonElement); // add the data to the list
jacksonElement = new Element();
iterator = 0;
}
}
}
} catch (JsonParseException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public FirstCon() {
IPreferences pref = Manager.getPreferences();
uri = pref.getDatabaseHost();
username = pref.getDatabaseUsername();
password = pref.getDatabasePassword();
}
