Example usage for java.util.concurrent ConcurrentHashMap ConcurrentHashMap

Introduction

In this page you can find the example usage for java.util.concurrent ConcurrentHashMap ConcurrentHashMap.

Prototype

public ConcurrentHashMap()

Source Link

Document

Creates a new, empty map with the default initial table size (16).

Usage

From source file:com.mnt.base.stream.comm.PacketProcessorManager.java

protected PacketProcessorManager(int threadSize) {

    if (enablePacketCacheQueue) {
        int packetCacheQueueSize = BaseConfiguration.getIntProperty("packet_cache_queue_size", 10000);
        //streamPacketQueue = new LinkedBlockingQueue<StreamPacket>(packetCacheQueueSize);

        streamPacketQueueMap = new ConcurrentHashMap<Integer, BlockingQueue<StreamPacket>>();
        this.maxQueueMapSize = threadSize;

        this.pushAi = new AtomicLong(0);
        this.pollAi = new AtomicLong(0);

        for (int i = 0; i < this.maxQueueMapSize; i++) {
            streamPacketQueueMap.put(i, new LinkedBlockingQueue<StreamPacket>(packetCacheQueueSize));
        }//from w  w  w. j  ava  2  s  .c o  m

        threadSize = threadSize > 0 ? threadSize : 1; // at least one thread
        initProcessorThreads(threadSize);
    }

    initProcessorMap();
}

From source file:lucee.runtime.reflection.storage.SoftMethodStorage.java

/**
 * store a class with his methods// w  w  w . j av  a2  s  . c om
 * @param clazz
 * @return returns stored struct
 */
private Map<Key, Array> store(Class clazz) {
    Method[] methods = clazz.getMethods();
    Map<Key, Array> methodsMap = new ConcurrentHashMap<Key, Array>();
    for (int i = 0; i < methods.length; i++) {
        storeMethod(methods[i], methodsMap);

    }
    map.put(clazz, methodsMap);
    return methodsMap;
}

From source file:org.mimacom.sample.integration.patterns.user.service.web.SimpleUserController.java

public SimpleUserController(SimpleSearchServiceIntegration simpleSearchServiceIntegration) {
    this.simpleSearchServiceIntegration = simpleSearchServiceIntegration;
    this.userRepository = new ConcurrentHashMap<>();
}

From source file:corner.cache.services.impl.local.LocalCacheImpl.java

@SuppressWarnings("unchecked")
private void init() {
    cache = new ConcurrentHashMap();

    expiryCache = new ConcurrentHashMap<String, Long>();

    scheduleService = Executors.newScheduledThreadPool(1);

    scheduleService.scheduleAtFixedRate(new CheckOutOfDateSchedule(cache, expiryCache), 0, expiryInterval * 60,
            TimeUnit.SECONDS);//from   w ww.j  a v  a  2s. com

    if (logger.isInfoEnabled())
        logger.info("DefaultCache CheckService is start!");
}

From source file:kr.co.bitnine.octopus.frame.SessionServer.java

@Override
protected void serviceInit(Configuration conf) throws Exception {
    super.serviceInit(conf);

    LOG.info("initialize service - " + getName());

    sessions = new ConcurrentHashMap<>();

    int sessMax = conf.getInt(OctopusConfiguration.MASTER_SESSION_MAX, EXECUTOR_MAX_DEFAULT);
    LOG.debug("create ThreadPoolExecutor for sessions (" + OctopusConfiguration.MASTER_SERVER_ADDRESS + '='
            + sessMax + ')');
    executor = new ThreadPoolExecutor(0, sessMax, EXECUTOR_KEEPALIVE_DEFAULT, TimeUnit.SECONDS,
            new SynchronousQueue<Runnable>());

    listener = new Listener();
    LOG.debug("thread " + listener.getName() + " is created");
}

From source file:com.baidu.rigel.biplatform.ma.report.query.QueryContext.java

/**
 * ??/*  w  w w .j  av a 2  s  . c o m*/
 * 
 * @param itemId
 * @param value
 */
public void put(String id, Object value) {

    if (this.params == null) {
        this.params = new ConcurrentHashMap<String, Object>();
    }
    if (StringUtils.isNotEmpty(id) && value != null) {
        this.params.put(id, value);
    }
}

From source file:com.vmware.o11n.plugin.powershell.model.impl.HostManagerImpl.java

public HostManagerImpl() {
    hosts = new ConcurrentHashMap<String, Host>();
}

From source file:au.org.ala.spatial.analysis.layers.LayerDistanceIndex.java

/**
 * Get all available inter layer association distances.
 *
 * @return Map of all available distances as Map&ltString, Double&gt. The
 * key String is fieldId1 + " " + fieldId2 where fieldId1 &lt fieldId2.
 *///from   ww w  .  j  av  a2s .co  m
static public Map<String, Double> loadDistances() {
    Map<String, Double> map = new ConcurrentHashMap<String, Double>();
    BufferedReader br = null;
    try {
        File file = new File(IntersectConfig.getAlaspatialOutputPath() + LAYER_DISTANCE_FILE);

        //attempt to create empty file if it does not exist
        if (!new File(IntersectConfig.getAlaspatialOutputPath()).exists()) {
            new File(IntersectConfig.getAlaspatialOutputPath()).mkdirs();
        }
        if (!file.exists()) {
            FileUtils.writeStringToFile(file, "");
        }
        br = new BufferedReader(new FileReader(file));

        String line;
        while ((line = br.readLine()) != null) {
            if (line.length() > 0) {
                String[] keyvalue = line.split("=");
                double d = Double.NaN;
                try {
                    d = Double.parseDouble(keyvalue[1]);
                } catch (Exception e) {
                    logger.info("cannot parse value in " + line);
                }
                map.put(keyvalue[0], d);
            }
        }
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
    } finally {
        if (br != null) {
            try {
                br.close();
            } catch (Exception e) {
                logger.error(e.getMessage(), e);
            }
        }
    }

    return map;
}

From source file:com.github.jknack.handlebars.cache.HighConcurrencyTemplateCache.java

/**
 * Creates a new HighConcurrencyTemplateCache.
 *//*from w w w .j  a va  2  s  . c  o  m*/
public HighConcurrencyTemplateCache() {
    this(new ConcurrentHashMap<TemplateSource, Future<Pair<TemplateSource, Template>>>());
}

From source file:com.openteach.diamond.network.waverider.WaveriderClient.java

@Override
public void initialize() {
    super.initialize();
    idGenerator = new AtomicLong(0);
    pendingRequestMap = new ConcurrentHashMap<String, PendingRequest>();
    slaveNode = WaveriderFactory.newInstance(config).buildSlave();
    slaveNode.addCommandHandler(COMMAND_DIAMOND_RESPONSE, new CommandHandler() {

        @Override/*  w w  w  . j a v a 2s .  c o  m*/
        public Command handle(Command command) {
            NetworkResponse response = NetworkResponse.unmarshall(command.getPayLoad());
            PendingRequest pr = pendingRequestMap.get(response.getId());
            if (null == pr) {
                logger.error(String.format(
                        "Server send response but there is no request for this response: % request id:%d",
                        response.getId()));
                return null;
            }
            pr.response = response;
            synchronized (pr.request) {
                pr.request.notifyAll();
            }
            return null;
        }

    });
    slaveNode.init();
    slaveNode.start();
}