filebot/source/net/filebot/subtitle/SubtitleReader.java

63 lines
1.3 KiB
Java

package net.filebot.subtitle;
import static net.filebot.Logging.*;
import java.io.Closeable;
import java.io.IOException;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.Scanner;
import java.util.Spliterator;
import java.util.Spliterators;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
public abstract class SubtitleReader implements Iterator<SubtitleElement>, Closeable {
protected Scanner scanner;
protected SubtitleElement current;
public SubtitleReader(Scanner scanner) {
this.scanner = scanner;
}
protected abstract SubtitleElement readNext() throws Exception;
@Override
public boolean hasNext() {
// find next element
while (current == null && scanner.hasNextLine()) {
try {
current = readNext();
} catch (Exception e) {
debug.warning(cause(e)); // log and ignore
}
}
return current != null;
}
@Override
public SubtitleElement next() {
if (!hasNext()) {
throw new NoSuchElementException();
}
try {
return current;
} finally {
current = null;
}
}
@Override
public void close() throws IOException {
scanner.close();
}
public Stream<SubtitleElement> stream() {
return StreamSupport.stream(Spliterators.spliteratorUnknownSize(this, Spliterator.ORDERED), false);
}
}