Java Code Examples for java.util.Collections#synchronizedSet()

private ClassLoader(Void unused, ClassLoader parent) {
    this.parent = parent;
    if (ParallelLoaders.isRegistered(this.getClass())) {
        parallelLockMap = new ConcurrentHashMap<>();
        package2certs = new ConcurrentHashMap<>();
        domains =
            Collections.synchronizedSet(new HashSet<ProtectionDomain>());
        assertionLock = new Object();
    } else {
        // no finer-grained lock; lock on the classloader instance
        parallelLockMap = null;
        package2certs = new Hashtable<>();
        domains = new HashSet<>();
        assertionLock = this;
    }
}
 

@Test
public void testToFunction() throws Exception {
    CamelContext camelctx = createWildFlyCamelContext();
    camelctx.start();
    try {
        CamelReactiveStreamsService crs = CamelReactiveStreams.get(camelctx);

        /* A TreeSet will order the messages alphabetically regardless of the insertion order
         * This is important because in the Flux returned by Flux.flatMap(Function<? super T, ? extends
         * Publisher<? extends R>>) the emissions may interleave */
        Set<String> values = Collections.synchronizedSet(new TreeSet<>());
        CountDownLatch latch = new CountDownLatch(3);
        Function<Object, Publisher<String>> fun = crs.to("bean:hello", String.class);

        Flux.just(1, 2, 3)
            .flatMap(fun)
            .doOnNext(res -> values.add(res))
            .doOnNext(res -> latch.countDown())
            .subscribe();

        Assert.assertTrue(latch.await(2, TimeUnit.SECONDS));
        Assert.assertEquals(new TreeSet<>(Arrays.asList("Hello 1", "Hello 2", "Hello 3")), values);
    } finally {
        camelctx.close();
    }
}
 

private VideoCastManager(Context context, String applicationId, Class<?> targetActivity,
                         String dataNamespace) {
    super(context, applicationId);
    LOGD(TAG, "VideoCastManager is instantiated");
    mVideoConsumers = Collections.synchronizedSet(new HashSet<IVideoCastConsumer>());
    mDataNamespace = dataNamespace;
    if (null == targetActivity) {
        targetActivity = VideoCastControllerActivity.class;
    }
    mTargetActivity = targetActivity;
    Utils.saveStringToPreference(mContext, PREFS_KEY_CAST_ACTIVITY_NAME,
            mTargetActivity.getName());
    if (null != mDataNamespace) {
        Utils.saveStringToPreference(mContext, PREFS_KEY_CAST_CUSTOM_DATA_NAMESPACE,
                dataNamespace);
    }

    mMiniControllers = Collections.synchronizedSet(new HashSet<IMiniController>());

    mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
    mMediaButtonReceiverComponent = new ComponentName(context, VideoIntentReceiver.class);

    mHandler = new Handler(new UpdateNotificationHandlerCallback());
}
 

public JCAManagedConnection(JCAManagedConnectionFactory fact) {
  this.factory = fact;
  this.listeners = Collections
      .<ConnectionEventListener> synchronizedList(new ArrayList<ConnectionEventListener>());
  this.localTran = new JCALocalTransaction();
  this.connections = Collections
      .<GFConnectionImpl> synchronizedSet(new HashSet<GFConnectionImpl>());
}
 

/**
 * Creates a limited set of a initial size, maximum size, and eviction mode.
 *
 * @param initialCapacity The initial size to allocate for the set.
 * @param maxSize The maximum number of elements to keep in the set.
 * @param mode A mode that determines which element is evicted when the set exceeds its max size.
 * @param <T> The type of object held in the set.
 * @return A thread-safe set that will evict elements when the max size is exceeded.
 */
public static final <T> Set<T> create(
    final int initialCapacity, final int maxSize, final Mode mode) {
  final boolean useAccessOrder = mode.equals(Mode.DROP_LEAST_RECENTLY_ACCESSED);
  return Collections.synchronizedSet(
      Collections.newSetFromMap(
          new LinkedHashMap<T, Boolean>(initialCapacity, 0.75f, useAccessOrder) {
            @Override
            protected boolean removeEldestEntry(final Map.Entry<T, Boolean> eldest) {
              return size() > maxSize;
            }
          }));
}
 

@MemoryScope
@Provides
@Named("storage")
public Set<Series> storage() {
    if (synchronizedStorage) {
        return Collections.synchronizedSet(new HashSet<>());
    } else {
        return new ConcurrentSkipListSet<>();
    }
}
 

/**
 * Tests the thread-safety of {@link EarlyInitSingleton}.
 */
@Test
public void givenEarlyInitSingleton_whenMultithreadInstancesEquals_thenTrue() {
	ExecutorService executor = Executors.newFixedThreadPool(POOL_SIZE);
	Set<EarlyInitSingleton> resultSet = Collections.synchronizedSet(new HashSet<>());

	// Submits the instantiation tasks.
	for (int i = 0; i < TASKS_TO_SUBMIT; i++) {
		executor.submit(() -> resultSet.add(EarlyInitSingleton.getInstance()));
	}

	// Since the instance of the object we inserted into the set is always
	// the same, the size should be one.
	Assert.assertEquals(1, resultSet.size());
}
 

ServerImpl(HttpServer wrapper, String protocol, InetSocketAddress addr, int backlog) throws IOException {
   this.protocol = protocol;
   this.wrapper = wrapper;
   this.logger = Logger.getLogger("com.sun.net.httpserver");
   ServerConfig.checkLegacyProperties(this.logger);
   this.https = protocol.equalsIgnoreCase("https");
   this.address = addr;
   this.contexts = new ContextList();
   this.schan = ServerSocketChannel.open();
   if (addr != null) {
      ServerSocket socket = this.schan.socket();
      socket.bind(addr, backlog);
      this.bound = true;
   }

   this.selector = Selector.open();
   this.schan.configureBlocking(false);
   this.listenerKey = this.schan.register(this.selector, 16);
   this.dispatcher = new ServerImpl.Dispatcher();
   this.idleConnections = Collections.synchronizedSet(new HashSet());
   this.allConnections = Collections.synchronizedSet(new HashSet());
   this.reqConnections = Collections.synchronizedSet(new HashSet());
   this.rspConnections = Collections.synchronizedSet(new HashSet());
   this.time = System.currentTimeMillis();
   this.timer = new Timer("server-timer", true);
   this.timer.schedule(new ServerImpl.ServerTimerTask(), (long)CLOCK_TICK, (long)CLOCK_TICK);
   if (timer1Enabled) {
      this.timer1 = new Timer("server-timer1", true);
      this.timer1.schedule(new ServerImpl.ServerTimerTask1(), TIMER_MILLIS, TIMER_MILLIS);
      this.logger.config("HttpServer timer1 enabled period in ms:  " + TIMER_MILLIS);
      this.logger.config("MAX_REQ_TIME:  " + MAX_REQ_TIME);
      this.logger.config("MAX_RSP_TIME:  " + MAX_RSP_TIME);
   }

   this.events = new LinkedList();
   this.logger.config("HttpServer created " + protocol + " " + addr);
}
 

public AlgorithmSchema() {
	m_inputDatasets = Collections.synchronizedSet( new HashSet<String>() );
	m_requiredInputDatasets = Collections.synchronizedSet( new HashSet<String>() );
	m_optionalInputDatasets = Collections.synchronizedSet( new HashSet<String>() );
	m_excludedInputDatasets = Collections.synchronizedSet( new HashSet<String>() );
	m_outputDatasets = Collections.synchronizedSet( new HashSet<String>() );
	m_expectedDimensions = Collections.synchronizedSet( new HashSet<DataKeyDimension>() );
}
 

/**
 * @since 1.0.0
 */
public SelectableAdapter() {
    if (Log.customTag == null) {
        Log.useTag("FlexibleAdapter");
    }
    log = new Logger(Log.customTag);
    log.i("Running version %s", BuildConfig.VERSION_NAME);
    mSelectedPositions = Collections.synchronizedSet(new TreeSet<Integer>());
    mBoundViewHolders = new HashSet<>();
    mMode = IDLE;

    mFastScrollerDelegate = new FastScroller.Delegate();
}
 

/** All object adapter factories must have a no-arg constructor.
*/
public POAFactory()
{
    poaManagers = Collections.synchronizedSet(new HashSet(4));
    poaManagerId = 0 ;
    poaId = 0 ;
    rootPOA = null ;
    delegateImpl = null ;
    orb = null ;
}
 

public void addSummonedMob(MapleMonster mob) {
    Set<Integer> calledOids = this.calledMobOids;
    if (calledOids == null) {
        calledOids = Collections.synchronizedSet(new HashSet<Integer>());
        this.calledMobOids = calledOids;
    }
    
    calledOids.add(mob.getObjectId());
    mob.setSummonerMob(this);
}
 

/**
 * Creates new CassandraNode instance connected to Cassandra-node on
 * specified host via specified JMX-port.
 * 
 * @param host
 *            The host name or ip-address. Set to null or empty value to
 *            specify local host.
 * @param port
 *            The port number. Set to 0 or negative value to specify default
 *            port.
 */
public CassandraNode(String host, int port) {
	if (port <= 0) {
		port = DEFAULT_JMX_PORT;
	}

	this.host = host;
	this.port = port;
	isLocal = isLocalHost();
	lockedMessages =  Collections.synchronizedSet(new HashSet<String>());

	try {
		storageServiceName = new ObjectName(
				"org.apache.cassandra.db:type=StorageService");

		runtimeServiceName = new ObjectName("java.lang:type=Runtime");
		osServiceName = new ObjectName("java.lang:type=OperatingSystem");

	} catch (MalformedObjectNameException ex) {
		logger.error("Program error.", ex);
	}

	String osv = System.getProperty("os.version");
	logger.debug("OS version: " + osv);
	// If OS version is x.y.z, strip .z part(s)
	while (osv.lastIndexOf('.') > osv.indexOf('.')) {
	    osv = osv.substring(0, osv.lastIndexOf('.'));
	}
	osversion = Float.parseFloat(osv);

	setDbtoolProps();
}
 

protected Set<String> getObject() {
    Set<String> set = Collections.singleton("string");
    return Collections.synchronizedSet(set);
}
 

protected Set<String> getObject() {
    Set<String> set = Collections.singleton("string");
    return Collections.synchronizedSet(set);
}
 

/**
 * Constructor, initialises the HashSet.
 * 
 * @param objectId ID of the remote publishing object.
 */
public Subscription(String objectId, int QoS) {
	this.objectId = objectId;
	this.QoS = QoS;
	eventSubscriptions = Collections.synchronizedSet(new HashSet<String>());
}
 

private BitmapPool() {
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB) {
        mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
    }
}
 

protected Set<String> getAnotherObject() {
    Set<String> set = Collections.emptySet();
    return Collections.synchronizedSet(set);
}
 

protected void readLogSegmentsFromStore(final Versioned<List<String>> logSegmentNames,
                                        final Comparator<LogSegmentMetadata> comparator,
                                        final LogSegmentFilter segmentFilter,
                                        final CompletableFuture<Versioned<List<LogSegmentMetadata>>> readResult) {
    Set<String> segmentsReceived = new HashSet<String>();
    segmentsReceived.addAll(segmentFilter.filter(logSegmentNames.getValue()));
    Set<String> segmentsAdded;
    final Set<String> removedSegments = Collections.synchronizedSet(new HashSet<String>());
    final Map<String, LogSegmentMetadata> addedSegments =
            Collections.synchronizedMap(new HashMap<String, LogSegmentMetadata>());
    Pair<Set<String>, Set<String>> segmentChanges = logSegmentCache.diff(segmentsReceived);
    segmentsAdded = segmentChanges.getLeft();
    removedSegments.addAll(segmentChanges.getRight());

    if (segmentsAdded.isEmpty()) {
        if (LOG.isTraceEnabled()) {
            LOG.trace("No segments added for {}.", getFullyQualifiedName());
        }

        // update the cache before #getCachedLogSegments to return
        updateLogSegmentCache(removedSegments, addedSegments);

        List<LogSegmentMetadata> segmentList;
        try {
            segmentList = getCachedLogSegments(comparator);
        } catch (UnexpectedException e) {
            readResult.completeExceptionally(e);
            return;
        }

        readResult.complete(new Versioned<List<LogSegmentMetadata>>(segmentList, logSegmentNames.getVersion()));
        return;
    }

    final AtomicInteger numChildren = new AtomicInteger(segmentsAdded.size());
    final AtomicInteger numFailures = new AtomicInteger(0);
    for (final String segment: segmentsAdded) {
        String logSegmentPath = logMetadata.getLogSegmentPath(segment);
        LogSegmentMetadata cachedSegment = metadataCache.get(logSegmentPath);
        if (null != cachedSegment) {
            addedSegments.put(segment, cachedSegment);
            completeReadLogSegmentsFromStore(
                    removedSegments,
                    addedSegments,
                    comparator,
                    readResult,
                    logSegmentNames.getVersion(),
                    numChildren,
                    numFailures);
            continue;
        }
        metadataStore.getLogSegment(logSegmentPath)
                .whenComplete(new FutureEventListener<LogSegmentMetadata>() {

                    @Override
                    public void onSuccess(LogSegmentMetadata result) {
                        addedSegments.put(segment, result);
                        complete();
                    }

                    @Override
                    public void onFailure(Throwable cause) {
                        // LogSegmentNotFoundException exception is possible in two cases
                        // 1. A log segment was deleted by truncation between the call to getChildren and read
                        // attempt on the znode corresponding to the segment
                        // 2. In progress segment has been completed => inprogress ZNode does not exist
                        if (cause instanceof LogSegmentNotFoundException) {
                            removedSegments.add(segment);
                            complete();
                        } else {
                            // fail fast
                            if (1 == numFailures.incrementAndGet()) {
                                readResult.completeExceptionally(cause);
                                return;
                            }
                        }
                    }

                    private void complete() {
                        completeReadLogSegmentsFromStore(
                                removedSegments,
                                addedSegments,
                                comparator,
                                readResult,
                                logSegmentNames.getVersion(),
                                numChildren,
                                numFailures);
                    }
                });
    }
}
 

public ParallelWorldClassLoader(ClassLoader parent,String prefix) {
    super(parent);
    this.prefix = prefix;
    jars = Collections.synchronizedSet(new HashSet<JarFile>());
}