Example usage for java.util.concurrent ConcurrentMap put

Introduction

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

Prototype

V put(K key, V value);

Source Link

Document

Associates the specified value with the specified key in this map (optional operation).

Usage

From source file:de.unentscheidbar.validation.internal.Beans.java

public static <T> T propertyValue(Object bean, String propertyName) {

    try {//from w  ww.  j  a  v a2 s  .c om
        ConcurrentMap<String, MethodHandle> methodHandles = CACHE.get(bean.getClass(),
                new Callable<ConcurrentMap<String, MethodHandle>>() {

                    @Override
                    public ConcurrentMap<String, MethodHandle> call() throws Exception {

                        return new MapMaker().concurrencyLevel(2).makeMap();
                    }
                });
        /*
         * We may assume this map only grows and never shrinks. It does not matter if the same
         * getter is added twice by concurrent invocations of this method.
         */
        MethodHandle getter = methodHandles.get(propertyName);
        if (getter == null) {
            getter = getterMethod(bean.getClass(), propertyName);
            methodHandles.put(propertyName, getter);
        }
        assert getter != null;
        return (T) getter.invoke(bean);
    } catch (Throwable t) {
        throw Throwables.propagate(t);
    }
}

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From source file:xbird.util.nio.RemoteMemoryMappedFile.java

public static void handleResponse(final ReadRequestMessage request, final ProtocolEncoderOutput out,
        final ConcurrentMap<String, FileChannel> fdCacheMap) {
    final String filePath = request.filePath;

    FileChannel fileChannel = fdCacheMap.get(filePath);
    if (fileChannel == null) {
        File file = new File(filePath);
        if (!file.exists()) {
            throw new IllegalStateException("file not exists: " + filePath);
        }/*from  w  ww .ja  va2 s  .  c o  m*/
        final RandomAccessFile raf;
        try {
            raf = new RandomAccessFile(file, "r");
        } catch (FileNotFoundException e) {
            throw new IllegalStateException(e);
        }
        fileChannel = raf.getChannel();
        fdCacheMap.put(filePath, fileChannel);
    }
    long count = request.endOffset - request.startOffset;
    long position = request.startOffset;

    if (LOG.isDebugEnabled()) {
        LOG.debug("Transfer " + count + " bytes of file '" + filePath + "' from the offset " + position);
    }

    FileRegion fileRegion = new DefaultFileRegion(fileChannel, position, count);
    out.write(fileRegion);
}

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From source file:com.opengamma.component.ComponentConfigLoader.java

private ConcurrentMap<String, String> adjustProperties(ConcurrentMap<String, String> input) {
    ConcurrentMap<String, String> map = new ConcurrentHashMap<String, String>();
    for (String key : input.keySet()) {
        map.put("${" + key + "}", input.get(key));
    }//from  www. ja va2 s . co m
    return map;
}

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From source file:org.opendaylight.ovsdb.plugin.NodeDB.java

public void updateRow(String tableName, String uuid, Table<?> row) {
    ConcurrentMap<String, Table<?>> tableCache = getTableCache(tableName);
    if (tableCache == null) {
        tableCache = Maps.newConcurrentMap();
        setTableCache(tableName, tableCache);
    }/* w w  w  .ja v a 2  s  . c o m*/
    tableCache.put(uuid, row);
}

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From source file:com.splout.db.hazelcast.DistributedRegistry.java

public synchronized void register() {
    String myself = localMember();
    log.info("Registering myself [" + myself + "] on registry [" + registryName + "]");
    ConcurrentMap<String, Object> members = hzInstance.getMap(registryName);
    members.put(myself, nodeInfo);
    amIRegistered.set(true);/* w  w  w  . ja  v a 2s  .c o m*/
}

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From source file:com.splout.db.hazelcast.DistributedRegistry.java

public synchronized void changeInfo(Object nodeInfo) {
    // Changing memory information. Needed for future reregistration
    this.nodeInfo = nodeInfo;
    String myself = localMember();
    log.info("Changing my info [" + myself + "] on registry [" + registryName + "]");
    ConcurrentMap<String, Object> members = hzInstance.getMap(registryName);
    members.put(myself, nodeInfo);
    amIRegistered.set(true);//w w  w.j a  va 2 s  .c  o m
}

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From source file:org.opendaylight.controller.routing.dijkstrav2_implementation.internal.DijkstraImplementation.java

private static boolean updateTopo(Edge edge, Short bw, UpdateType type,
        ConcurrentMap<Short, Graph<Node, Edge>> topologyBWAware,
        ConcurrentHashMap<Short, DijkstraShortestPath<Node, Edge>> sptBWAware) {
    Short baseBW = Short.valueOf((short) 0);
    Graph<Node, Edge> topo = topologyBWAware.get(baseBW);
    DijkstraShortestPath<Node, Edge> spt = sptBWAware.get(baseBW);
    boolean edgePresentInGraph = false;

    if (topo == null) {
        // Create topology for this BW
        Graph<Node, Edge> g = new SparseMultigraph();
        topologyBWAware.put(bw, g);
        topo = topologyBWAware.get(bw);//ww  w . j  a v  a 2 s. com
        sptBWAware.put(bw, new DijkstraShortestPath(g));
        spt = sptBWAware.get(bw);
    }
    if (topo != null) {
        NodeConnector src = edge.getTailNodeConnector();
        NodeConnector dst = edge.getHeadNodeConnector();
        if (spt == null) {
            spt = new DijkstraShortestPath(topo);
            sptBWAware.put(bw, spt);
        }

        switch (type) {
        case ADDED:
            // Make sure the vertex are there before adding the edge
            topo.addVertex(src.getNode());
            topo.addVertex(dst.getNode());
            // Add the link between
            edgePresentInGraph = topo.containsEdge(edge);
            if (edgePresentInGraph == false) {
                try {
                    topo.addEdge(new Edge(src, dst), src.getNode(), dst.getNode(), EdgeType.DIRECTED);
                } catch (final ConstructionException e) {
                    log.error("", e);
                    return edgePresentInGraph;
                }
            }
        case CHANGED:
            // Mainly raised only on properties update, so not really useful
            // in this case
            break;
        case REMOVED:
            // Remove the edge
            try {
                topo.removeEdge(new Edge(src, dst));
            } catch (final ConstructionException e) {
                log.error("", e);
                return edgePresentInGraph;
            }

            // If the src and dst vertex don't have incoming or
            // outgoing links we can get ride of them
            if (topo.containsVertex(src.getNode()) && (topo.inDegree(src.getNode()) == 0)
                    && (topo.outDegree(src.getNode()) == 0)) {
                log.debug("Removing vertex {}", src);
                topo.removeVertex(src.getNode());
            }

            if (topo.containsVertex(dst.getNode()) && (topo.inDegree(dst.getNode()) == 0)
                    && (topo.outDegree(dst.getNode()) == 0)) {
                log.debug("Removing vertex {}", dst);
                topo.removeVertex(dst.getNode());
            }
            break;
        }
        spt.reset();
        if (bw.equals(baseBW)) {
            //TODO: for now this doesn't work
            //                clearMaxThroughput();
        }
    } else {
        log.error("Cannot find topology for BW {} this is unexpected!", bw);
    }
    return edgePresentInGraph;
}

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From source file:com.bt.aloha.dao.StateInfoDaoImpl.java

@SuppressWarnings(UNCHECKED)
public ConcurrentMap<String, T> getAll(String collectionTypeName) {
    List<T> all;/*  w w w .  j  av  a  2  s. c  om*/
    Object[] params = new Object[] { collectionTypeName };
    try {
        all = getJdbcTemplate().query(SELECT_ALL_SQL, params, new TRowMapper());
    } catch (DataAccessException e) {
        throw new IllegalArgumentException("Cannot retrieve all info objects from database", e);
    }
    ConcurrentMap<String, T> map = new ConcurrentHashMap<String, T>();
    for (T item : all) {
        map.put(item.getId(), item);
    }
    return map;
}

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From source file:org.apache.hadoop.mapreduce.v2.TestRMNMInfo.java

@Test
public void testRMNMInfoMissmatch() throws Exception {
    RMContext rmc = mock(RMContext.class);
    ResourceScheduler rms = mock(ResourceScheduler.class);
    ConcurrentMap<NodeId, RMNode> map = new ConcurrentHashMap<NodeId, RMNode>();
    RMNode node = MockNodes.newNodeInfo(1, MockNodes.newResource(4 * 1024));
    map.put(node.getNodeID(), node);
    when(rmc.getRMNodes()).thenReturn(map);

    RMNMInfo rmInfo = new RMNMInfo(rmc, rms);
    String liveNMs = rmInfo.getLiveNodeManagers();
    ObjectMapper mapper = new ObjectMapper();
    JsonNode jn = mapper.readTree(liveNMs);
    Assert.assertEquals("Unexpected number of live nodes:", 1, jn.size());
    Iterator<JsonNode> it = jn.iterator();
    while (it.hasNext()) {
        JsonNode n = it.next();//  www.  j  av a2 s.c om
        Assert.assertNotNull(n.get("HostName"));
        Assert.assertNotNull(n.get("Rack"));
        Assert.assertTrue("Node " + n.get("NodeId") + " should be RUNNING",
                n.get("State").asText().contains("RUNNING"));
        Assert.assertNotNull(n.get("NodeHTTPAddress"));
        Assert.assertNotNull(n.get("LastHealthUpdate"));
        Assert.assertNotNull(n.get("HealthReport"));
        Assert.assertNotNull(n.get("NodeManagerVersion"));
        Assert.assertNull(n.get("NumContainers"));
        Assert.assertNull(n.get("UsedMemoryMB"));
        Assert.assertNull(n.get("AvailableMemoryMB"));
    }
}

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From source file:com.bt.sdk.callcontrol.sip.util.EhCacheCollectionImpl.java

@SuppressWarnings("unchecked")
public ConcurrentMap<String, T> getAll() {
    ConcurrentMap<String, T> result = new ConcurrentHashMap<String, T>();
    for (Object key : cache.getKeys()) {
        result.put((String) key, (T) cache.get(key).getObjectValue());
    }//w w w.j av a  2 s  .  c  o  m
    return result;
}

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