Examples with NoSuchElementException java.util.NoSuchElementException used on opensource projects

Example 36 with NoSuchElementException

use of java.util.NoSuchElementException in project camel by apache.

the class TestPublisher method subscribe.

@Override
public void subscribe(Subscriber<? super T> subscriber) {
    subscriber.onSubscribe(new Subscription() {

        private Iterator<T> it = data.iterator();

        private AtomicLong requested = new AtomicLong(0);

        private Object monitor = new Object();

        @Override
        public void request(long l) {
            this.requested.addAndGet(l);
            new Thread() {

                @Override
                public void run() {
                    synchronized (monitor) {
                        boolean wasNonEmpty = it.hasNext();
                        while (requested.longValue() > 0 && it.hasNext()) {
                            T d = it.next();
                            requested.decrementAndGet();
                            if (delay > 0) {
                                try {
                                    Thread.sleep(delay);
                                } catch (InterruptedException ex) {
                                }
                            }
                            subscriber.onNext(d);
                        }
                        if (wasNonEmpty && !it.hasNext()) {
                            // data cannot be added to this test publisher
                            subscriber.onComplete();
                        }
                    }
                }
            }.start();
        }

        @Override
        public void cancel() {
            synchronized (monitor) {
                this.requested.set(0);
                this.it = new Iterator<T>() {

                    @Override
                    public boolean hasNext() {
                        return false;
                    }

                    @Override
                    public T next() {
                        throw new NoSuchElementException();
                    }
                };
                new Thread() {

                    public void run() {
                        subscriber.onComplete();
                    }
                }.start();
            }
        }
    });
}

Example 37 with NoSuchElementException

use of java.util.NoSuchElementException in project robovm by robovm.

the class BasicHeaderElementIterator method nextElement.

public HeaderElement nextElement() throws NoSuchElementException {
    if (this.currentElement == null) {
        parseNextElement();
    }
    if (this.currentElement == null) {
        throw new NoSuchElementException("No more header elements available");
    }
    HeaderElement element = this.currentElement;
    this.currentElement = null;
    return element;
}

Example 38 with NoSuchElementException

use of java.util.NoSuchElementException in project okhttp by square.

the class Cache method urls.

/**
   * Returns an iterator over the URLs in this cache. This iterator doesn't throw {@code
   * ConcurrentModificationException}, but if new responses are added while iterating, their URLs
   * will not be returned. If existing responses are evicted during iteration, they will be absent
   * (unless they were already returned).
   *
   * <p>The iterator supports {@linkplain Iterator#remove}. Removing a URL from the iterator evicts
   * the corresponding response from the cache. Use this to evict selected responses.
   */
public Iterator<String> urls() throws IOException {
    return new Iterator<String>() {

        final Iterator<DiskLruCache.Snapshot> delegate = cache.snapshots();

        String nextUrl;

        boolean canRemove;

        @Override
        public boolean hasNext() {
            if (nextUrl != null)
                return true;
            // Prevent delegate.remove() on the wrong item!
            canRemove = false;
            while (delegate.hasNext()) {
                DiskLruCache.Snapshot snapshot = delegate.next();
                try {
                    BufferedSource metadata = Okio.buffer(snapshot.getSource(ENTRY_METADATA));
                    nextUrl = metadata.readUtf8LineStrict();
                    return true;
                } catch (IOException ignored) {
                // We couldn't read the metadata for this snapshot; possibly because the host filesystem
                // has disappeared! Skip it.
                } finally {
                    snapshot.close();
                }
            }
            return false;
        }

        @Override
        public String next() {
            if (!hasNext())
                throw new NoSuchElementException();
            String result = nextUrl;
            nextUrl = null;
            canRemove = true;
            return result;
        }

        @Override
        public void remove() {
            if (!canRemove)
                throw new IllegalStateException("remove() before next()");
            delegate.remove();
        }
    };
}

Example 39 with NoSuchElementException

use of java.util.NoSuchElementException in project databus by linkedin.

the class EventLogReader method read.

public Checkpoint read() {
    Checkpoint checkPoint = new Checkpoint();
    checkPoint.setFlexible();
    if (_enabled) {
        // ArrayList<InternalDatabusEventsListener> eventListeners = new ArrayList<InternalDatabusEventsListener>();
        _eventBuffer.addInternalListener(checkPoint);
        _eventBuffer.addInternalListener(this);
        if (_filesToRead != null) {
            for (File f : _filesToRead) {
                FileChannel readChannel = null;
                try {
                    readChannel = new FileInputStream(f).getChannel();
                } catch (FileNotFoundException e) {
                    throw new RuntimeException(e);
                }
                int numEvents = 0;
                try {
                    numEvents = _eventBuffer.readEvents(readChannel, getEncoding(f));
                } catch (InvalidEventException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                LOG.info("Read " + numEvents + " events");
            }
            _eventBuffer.removeInternalListener(checkPoint);
            _eventBuffer.removeInternalListener(this);
            LOG.info("Checkpoint = " + checkPoint);
            if (_eventSeen) {
                DbusEventIterator iter = _eventBuffer.acquireIterator("EventLogReader:firstEvent");
                try {
                    DbusEvent event = iter.next();
                    String firstEventContent = event.toString();
                    // if we didn't wrap the buffer, and the first event is not an eop marker, delete the first window
                    if (_firstEventContent.equalsIgnoreCase(firstEventContent) && !event.isEndOfPeriodMarker()) {
                        long result = _eventBuffer.deleteFirstWindow();
                        if (result < 0) {
                            throw new RuntimeException("eventBuffer could not delete first window");
                        }
                    }
                } finally {
                    _eventBuffer.releaseIterator(iter);
                }
                if (_lastEopOffset >= 0) {
                    iter = _eventBuffer.new DbusEventIterator(this._lastEopOffset, _eventBuffer.getTail(), "EventLogReader:lastEOP");
                    try {
                        DbusEvent event = iter.next();
                        if (!event.isEndOfPeriodMarker()) {
                            throw new RuntimeException("Tried reading end of period marker, but failed");
                        }
                        if (iter.hasNext()) {
                            _eventBuffer.setTail(iter.getCurrentPosition());
                        }
                    } catch (NoSuchElementException e) {
                        LOG.error("NoSuchElementException at : " + _eventBuffer.getBufferPositionParser().toString(_lastEopOffset));
                        throw e;
                    } finally {
                        _eventBuffer.releaseIterator(iter);
                    }
                }
            }
        }
    }
    return checkPoint;
}

Example 40 with NoSuchElementException

use of java.util.NoSuchElementException in project zoj by licheng.

the class Main method main.

public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    PrintWriter out = new PrintWriter(System.out);
    try {
        for (; ; ) {
            int a = in.nextInt();
            int b = in.nextInt();
            out.println(a + b);
        }
    } catch (NoSuchElementException e) {
    }
    out.close();
}