Examples with ConcurrentSkipListSet java.util.concurrent.ConcurrentSkipListSet used on opensource projects

Example 11 with ConcurrentSkipListSet

use of java.util.concurrent.ConcurrentSkipListSet in project mapdb by jankotek.

the class ConcurrentSkipListSubSetTest method set0.

private static NavigableSet set0() {
    ConcurrentSkipListSet set = new ConcurrentSkipListSet();
    assertTrue(set.isEmpty());
    return set.tailSet(m1, true);
}

Example 12 with ConcurrentSkipListSet

use of java.util.concurrent.ConcurrentSkipListSet in project Mycat-Server by MyCATApache.

the class IncrSequenceZKHandlerTest method initialize.

@Before
public void initialize() throws Exception {
    testingServer = new TestingServer();
    testingServer.start();
    incrSequenceZKHandler = new IncrSequenceZKHandler[MAX_CONNECTION];
    results = new ConcurrentSkipListSet();
}

Example 13 with ConcurrentSkipListSet

use of java.util.concurrent.ConcurrentSkipListSet in project graylog2-server by Graylog2.

the class GelfChunkAggregatorTest method testChunkEntryCompareTo.

@Test
public void testChunkEntryCompareTo() throws Exception {
    // Test if the ChunkEntry#compareTo() method can handle ChunkEntry objects which have the same timestamp.
    // See: https://github.com/Graylog2/graylog2-server/issues/1462
    final ConcurrentSkipListSet<GelfChunkAggregator.ChunkEntry> sortedEvictionSet = new ConcurrentSkipListSet<>();
    final long currentTime = System.currentTimeMillis();
    for (int i = 0; i < 10; i++) {
        sortedEvictionSet.add(new GelfChunkAggregator.ChunkEntry(1, currentTime, "a" + i));
    }
    final int size = sortedEvictionSet.size();
    for (int i = 0; i < size; i++) {
        sortedEvictionSet.remove(sortedEvictionSet.first());
    }
    assertTrue("eviction set should be empty", sortedEvictionSet.isEmpty());
}

Example 14 with ConcurrentSkipListSet

use of java.util.concurrent.ConcurrentSkipListSet in project opennms by OpenNMS.

the class JRobinConverter method execute.

public void execute(final String[] args) throws ParseException, ConverterException, RrdException {
    if (args.length == 0) {
        LogUtils.errorf(this, "no files or directories specified!");
        System.exit(1);
    }
    final Options options = new Options();
    options.addOption("h", "help", false, "This help.");
    options.addOption("f", "factory", true, "The JRobin factory to use. (Default: " + DEFAULT_JROBIN_FACTORY + ")");
    options.addOption("l", "log", true, "The log level to use. (Default: " + DEFAULT_LOG_LEVEL + ")");
    options.addOption("t", "threads", true, "Number of threads to start. (Default: " + DEFAULT_NUMBER_OF_THREADS + ")");
    options.addOption("c", "clean", false, "Remove old single-metric JRBs and temporal files. (Use it only after migrating all your files)");
    options.addOption("v", "validate", false, "Validate current JRBs ffiles.");
    final CommandLineParser parser = new GnuParser();
    final CommandLine cmd = parser.parse(options, args);
    LogUtils.setLevel(Level.valueOf(cmd.getOptionValue("l", DEFAULT_LOG_LEVEL)));
    RrdBackendFactory.setDefaultFactory(cmd.getOptionValue("f", DEFAULT_JROBIN_FACTORY));
    final Set<File> rrds = new ConcurrentSkipListSet<File>();
    if (cmd.hasOption("h")) {
        new HelpFormatter().printHelp("jrobin-converter [options] [file-or-directory1] [...file-or-directoryN]", options);
        System.exit(1);
    }
    if (cmd.getArgList().size() == 0) {
        LogUtils.infof(this, "No files or directories specified!  Exiting.");
        System.exit(0);
    }
    if (cmd.hasOption("c")) {
        new RrdCleaner().execute(cmd);
        System.exit(1);
    }
    if (cmd.hasOption("v")) {
        new RrdValidator().execute(cmd);
        System.exit(1);
    }
    int threads = DEFAULT_NUMBER_OF_THREADS;
    if (cmd.hasOption("t")) {
        try {
            threads = Integer.valueOf(cmd.getOptionValue("t"));
        } catch (final NumberFormatException e) {
            LogUtils.warnf(JRobinConverter.class, e, "failed to format -t %s to a number", cmd.getOptionValue("t"));
        }
    }
    final ExecutorService executor = Executors.newFixedThreadPool(threads);
    for (final Object arg : cmd.getArgList()) {
        LogUtils.infof(this, "Scanning %s for storeByGroup data.", arg);
        final File f = new File((String) arg);
        if (f.exists()) {
            if (f.isDirectory()) {
                rrds.addAll(findGroupRrds(f));
                for (final File rrdFile : findGroupRrds(f)) {
                    consolidateRrd(executor, rrdFile);
                }
            } else {
                consolidateRrd(executor, f);
            }
        }
    }
    LogUtils.infof(this, "Finished scanning for storeByGroup RRDs. (Total RRD count: %d)", m_total.get());
    executor.shutdown();
}

Example 15 with ConcurrentSkipListSet

use of java.util.concurrent.ConcurrentSkipListSet in project gora by apache.

the class JCacheStore method getPartitions.

@Override
public List<PartitionQuery<K, T>> getPartitions(Query<K, T> query) throws IOException {
    List<PartitionQuery<K, T>> partitions = new ArrayList<>();
    try {
        Member[] clusterMembers = new Member[hazelcastInstance.getCluster().getMembers().size()];
        this.hazelcastInstance.getCluster().getMembers().toArray(clusterMembers);
        for (Member member : clusterMembers) {
            JCacheResult<K, T> result = ((JCacheResult<K, T>) query.execute());
            ConcurrentSkipListSet<K> memberOwnedCacheEntries = new ConcurrentSkipListSet<>();
            while (result.next()) {
                K key = result.getKey();
                Partition partition = hazelcastInstance.getPartitionService().getPartition(key);
                if (partition.getOwner().getUuid().equals(member.getUuid())) {
                    memberOwnedCacheEntries.add(key);
                }
            }
            PartitionQueryImpl<K, T> partition = new PartitionQueryImpl<>(query, memberOwnedCacheEntries.first(), memberOwnedCacheEntries.last(), member.getSocketAddress().getHostString());
            partition.setConf(this.getConf());
            partitions.add(partition);
        }
    } catch (java.lang.Exception ex) {
        LOG.error("Exception occurred while partitioning the query based on Hazelcast partitions.", ex);
        return null;
    }
    LOG.info("Query is partitioned to {} number of partitions.", partitions.size());
    return partitions;
}