Example usage for com.google.common.collect Maps newConcurrentMap

Introduction

In this page you can find the example usage for com.google.common.collect Maps newConcurrentMap.

Prototype

public static <K, V> ConcurrentMap<K, V> newConcurrentMap()

Source Link

Document

Returns a general-purpose instance of ConcurrentMap , which supports all optional operations of the ConcurrentMap interface.

Usage

From source file:org.apache.phoenix.query.ConnectionQueryServicesImpl.java

@Override
public void removeConnection(PhoenixConnection connection) throws SQLException {
    if (returnSequenceValues) {
        ConcurrentMap<SequenceKey, Sequence> formerSequenceMap = null;
        synchronized (connectionCountLock) {
            if (--connectionCount == 0) {
                if (!this.sequenceMap.isEmpty()) {
                    formerSequenceMap = this.sequenceMap;
                    this.sequenceMap = Maps.newConcurrentMap();
                }/*from   w w  w  .ja  va 2 s  . c  o m*/
            }
        }
        // Since we're using the former sequenceMap, we can do this outside
        // the lock.
        if (formerSequenceMap != null) {
            // When there are no more connections, attempt to return any sequences
            returnAllSequences(formerSequenceMap);
        }
    }
}

From source file:com.cinchapi.concourse.server.ConcourseServer.java

/**
 * Initialize this instance. This method MUST always be called after
 * constructing the instance./* w  w  w  .  j  a v  a  2  s . c  o  m*/
 * 
 * @param port - the port on which to listen for client connections
 * @param bufferStore - the location to store {@link Buffer} files
 * @param dbStore - the location to store {@link Database} files
 * @throws TTransportException
 */
private void init(int port, String bufferStore, String dbStore) throws TTransportException {
    Preconditions.checkState(!bufferStore.equalsIgnoreCase(dbStore),
            "Cannot store buffer and database files in the same directory. " + "Please check concourse.prefs.");
    Preconditions.checkState(!Strings.isNullOrEmpty(Environments.sanitize(DEFAULT_ENVIRONMENT)),
            "Cannot initialize " + "Concourse Server with a default environment of "
                    + "'%s'. Please use a default environment name that "
                    + "contains only alphanumeric characters.",
            DEFAULT_ENVIRONMENT);
    FileSystem.mkdirs(bufferStore);
    FileSystem.mkdirs(dbStore);
    FileSystem.lock(bufferStore);
    FileSystem.lock(dbStore);
    TServerSocket socket = new TServerSocket(port);
    ConcourseService.Processor<Iface> processor = new ConcourseService.Processor<Iface>(this);
    Args args = new TThreadPoolServer.Args(socket);
    args.processor(processor);
    args.maxWorkerThreads(NUM_WORKER_THREADS);
    args.executorService(Executors
            .newCachedThreadPool(new ThreadFactoryBuilder().setNameFormat("Client Worker" + " %d").build()));
    this.server = new TThreadPoolServer(args);
    this.bufferStore = bufferStore;
    this.dbStore = dbStore;
    this.engines = Maps.newConcurrentMap();
    this.accessManager = AccessManager.create(ACCESS_FILE);
    this.httpServer = GlobalState.HTTP_PORT > 0 ? HttpServer.create(this, GlobalState.HTTP_PORT)
            : HttpServer.disabled();
    getEngine(); // load the default engine
    this.plugins = new PluginManager(GlobalState.CONCOURSE_HOME + File.separator + "plugins");
}