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package main;
import org.joda.time.LocalDateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
/**
* While the DataFiller is working, get some status information.
*
* @author Peter Wu
*/
class Watcher implements Runnable {
private final Main main;
/**
* Interval in seconds in which the status information is updated.
*/
private final int interval;
private final DateTimeFormatter df;
private int elapsed_seconds = 0;
private int previousCount = 0;
public Watcher(Main main, int interval) {
this.main = main;
this.interval = interval;
df = DateTimeFormat.forPattern("YYYY-MM-dd HH:mm:ss");
}
@Override
public void run() {
int newCount = main.getProcessedTweets();
int tweets_per_min = (newCount - previousCount) * 60 / interval;
int tweets_per_sec = tweets_per_min / 60;
elapsed_seconds += interval;
// tweets per min based on total number of tweets and elapsed time
int total_tweets_per_min = newCount * 60 / elapsed_seconds;
String datetime = df.print(new LocalDateTime());
// store new tweets count for next sample
previousCount = newCount;
System.err.println(datetime + " Processed tweets: " + newCount
+ " (total: " + total_tweets_per_min + " tweet/min)"
+ " (last interval: " + tweets_per_sec + " tweets/sec, "
+ tweets_per_min + " tweets/min)");
}
}
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