Example usage for java.util Collections synchronizedList

List of usage examples for java.util Collections synchronizedList

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Introduction

In this page you can find the example usage for java.util Collections synchronizedList.

Prototype

public static <T> List<T> synchronizedList(List<T> list)

Source Link

Document

Returns a synchronized (thread-safe) list backed by the specified list.

Usage

From source file:com.orange.mmp.api.helpers.DefaultApiContainer.java

public void initialize() throws MMPException {
    //Initialize API observers
    this.apiObservers = Collections.synchronizedList(new ArrayList<ApiObserver>());

    //Initialized API cache
    this.apiCache = new ConcurrentHashMap<Api, Element>();

    //Get the ModuleContainer and add itself as a ModuleObserver
    ModuleContainerFactory.getInstance().getModuleContainer().registerModuleObserver(this);
}

From source file:org.apache.syncope.core.persistence.jpa.dao.JPASubjectSearchDAO.java

@Override
public <T extends Subject<?, ?, ?>> boolean matches(final T subject, final SearchCond searchCondition,
        final SubjectType type) {

    List<Object> parameters = Collections.synchronizedList(new ArrayList<>());

    // 1. get the query string from the search condition
    SearchSupport svs = new SearchSupport(type);
    StringBuilder queryString = getQuery(searchCondition, parameters, type, svs);

    boolean matches;
    if (queryString.length() == 0) {
        // Could be empty: got into a role search with a single membership condition ...
        matches = false;/*from   w  w w . ja v a  2s  .  c  o  m*/
    } else {
        // 2. take into account the passed user
        queryString.insert(0, "SELECT u.subject_id FROM (");
        queryString.append(") u WHERE subject_id=?").append(setParameter(parameters, subject.getKey()));

        // 3. prepare the search query
        Query query = entityManager.createNativeQuery(queryString.toString());

        // 4. populate the search query with parameter values
        fillWithParameters(query, parameters);

        // 5. executes query
        matches = !query.getResultList().isEmpty();
    }

    return matches;
}

From source file:org.springframework.integration.splunk.support.SplunkHECWriter.java

@Override
public void start() {

    try {//from w  ww  .  j a v a2 s . c  o m
        this.batchBuffer = Collections.synchronizedList(new LinkedList<String>());
        this.lastEventReceivedTime = System.currentTimeMillis();

        Registry<SchemeIOSessionStrategy> sslSessionStrategy = RegistryBuilder.<SchemeIOSessionStrategy>create()
                .register("http", NoopIOSessionStrategy.INSTANCE)
                .register("https", new SSLIOSessionStrategy(getSSLContext(), HOSTNAME_VERIFIER)).build();

        ConnectingIOReactor ioReactor = new DefaultConnectingIOReactor();
        PoolingNHttpClientConnectionManager cm = new PoolingNHttpClientConnectionManager(ioReactor,
                sslSessionStrategy);
        cm.setMaxTotal(getPoolsize());

        HttpHost splunk = new HttpHost(getHost(), getPort());
        cm.setMaxPerRoute(new HttpRoute(splunk), getPoolsize());

        httpClient = HttpAsyncClients.custom().setConnectionManager(cm).build();

        uri = new URIBuilder().setScheme(isHttps() ? "https" : "http").setHost(getHost()).setPort(getPort())
                .setPath("/services/collector").build();

        httpClient.start();

        if (isBatchMode()) {
            new BatchBufferActivityCheckerThread(this).start();
        }
    } catch (Exception e) {
    }

    this.running = true;

}

From source file:org.syncope.core.persistence.dao.impl.UserSearchDAOImpl.java

private List<SyncopeUser> doSearch(final Set<Long> adminRoles, final NodeCond nodeCond, final int page,
        final int itemsPerPage) {

    List<Object> parameters = Collections.synchronizedList(new ArrayList<Object>());

    // 1. get the query string from the search condition
    final StringBuilder queryString = getQuery(nodeCond, parameters);

    // 2. take into account administrative roles
    if (queryString.charAt(0) == '(') {
        queryString.insert(0, "SELECT u.user_id FROM ");
        queryString.append(" u WHERE user_id NOT IN (");
    } else {/*from  w w w .j a v  a2s.  c o  m*/
        queryString.insert(0, "SELECT u.user_id FROM (");
        queryString.append(") u WHERE user_id NOT IN (");
    }
    queryString.append(getAdminRolesFilter(adminRoles)).append(")");

    // 3. prepare the search query
    final Query query = entityManager.createNativeQuery(queryString.toString());

    // page starts from 1, while setFirtResult() starts from 0
    query.setFirstResult(itemsPerPage * (page <= 0 ? 0 : page - 1));

    if (itemsPerPage >= 0) {
        query.setMaxResults(itemsPerPage);
    }

    // 4. populate the search query with parameter values
    fillWithParameters(query, parameters);

    LOG.debug("Native query\n{}\nwith parameters\n{}", queryString.toString(), parameters);

    // 5. Prepare the result (avoiding duplicates - set)
    final Set<Number> userIds = new HashSet<Number>();
    final List resultList = query.getResultList();

    //fix for HHH-5902 - bug hibernate
    if (resultList != null) {
        for (Object userId : resultList) {
            if (userId instanceof Object[]) {
                userIds.add((Number) ((Object[]) userId)[0]);
            } else {
                userIds.add((Number) userId);
            }
        }
    }

    final List<SyncopeUser> result = new ArrayList<SyncopeUser>(userIds.size());

    SyncopeUser user;
    for (Object userId : userIds) {
        user = userDAO.find(((Number) userId).longValue());
        if (user == null) {
            LOG.error("Could not find user with id {}, " + "even though returned by the native query", userId);
        } else {
            result.add(user);
        }
    }

    return result;
}

From source file:org.piwik.sdk.dispatcher.DispatcherTest.java

@Test
public void testBatchDispatch() throws Exception {
    List<Packet> dryRunData = Collections.synchronizedList(new ArrayList<Packet>());
    mDispatcher.setDryRunTarget(dryRunData);
    mDispatcher.setDispatchInterval(1500);

    final int threadCount = 5;
    final int queryCount = 5;
    final List<String> createdEvents = Collections.synchronizedList(new ArrayList<String>());
    launchTestThreads(mApiUrl, mDispatcher, threadCount, queryCount, createdEvents);
    Thread.sleep(1000);/*  w w w .  ja  v  a 2 s .  com*/
    assertEquals(threadCount * queryCount, createdEvents.size());
    assertEquals(0, dryRunData.size());
    Thread.sleep(1000);

    checkForMIAs(threadCount * queryCount, createdEvents, dryRunData);
}

From source file:org.apache.falcon.service.BacklogMetricEmitterService.java

@Override
public void highSLAMissed(String entityName, String clusterName, EntityType entityType, Date nominalTime)
        throws FalconException {
    if (entityType != EntityType.PROCESS) {
        return;//from  w  ww.j  a  v a2  s . c o m
    }
    Entity entity = EntityUtil.getEntity(entityType, entityName);
    entityBacklogs.putIfAbsent(entity, Collections.synchronizedList(new ArrayList<MetricInfo>()));
    List<MetricInfo> metricInfoList = entityBacklogs.get(entity);
    String nominalTimeStr = DATE_FORMAT.get().format(nominalTime);
    MetricInfo metricInfo = new MetricInfo(nominalTimeStr, clusterName);
    if (!metricInfoList.contains(metricInfo)) {
        synchronized (metricInfoList) {
            backlogMetricStore.addInstance(entityName, clusterName, nominalTime, entityType);
            metricInfoList.add(metricInfo);
        }
    }
}

From source file:com.fluidops.iwb.provider.CkanProvider.java

@Override
public void gather(List<Statement> res) throws Exception {
    // Read CKAN location and establish connection
    URL registryUrl = new URL(config.location);
    HttpURLConnection registryConnection = (HttpURLConnection) registryUrl.openConnection();
    registryConnection.setRequestMethod("GET");

    // Check if connection to CKAN could be established
    if (registryConnection.getResponseCode() != HttpURLConnection.HTTP_OK) {
        String msg = String.format("Connection to the CKAN registry could not be established. (%s, %s)",
                registryConnection.getResponseCode(), registryConnection.getResponseMessage());
        logger.info(msg);//from  ww w  .  j ava  2 s .  c  om
        throw new IllegalStateException(msg);
    }
    logger.trace("Connection to CKAN established successfully.");

    String siteContent = GenUtil.readUrl(registryConnection.getInputStream());

    JSONObject groupAsJson = null;
    JSONArray packageListJsonArray = null;
    try {
        groupAsJson = new JSONObject(new JSONTokener(siteContent));
        packageListJsonArray = groupAsJson.getJSONArray("packages");
    } catch (JSONException e) {
        String msg = String.format("Returned content %s is not valid JSON. Check if the registry URL is valid.",
                siteContent);
        logger.debug(msg);
        throw new IllegalStateException(msg);
    }
    logger.trace("Extracted JSON from CKAN successfully");

    // Create metadata about LOD catalog
    res.add(ProviderUtils.createStatement(CKAN.CKAN_CATALOG, RDF.TYPE, Vocabulary.DCAT.CATALOG));
    res.add(ProviderUtils.createStatement(CKAN.CKAN_CATALOG, RDFS.LABEL, CKAN.CKAN_CATALOG_LABEL));

    // Extract metadata for individual data sets listed in CKAN
    MultiThreadedHttpConnectionManager connectionManager = null;
    ExecutorService pool = null;
    try {
        pool = Executors.newFixedThreadPool(10);
        connectionManager = new MultiThreadedHttpConnectionManager();
        HttpClient client = new HttpClient(connectionManager);

        List<Statement> synchedList = Collections.synchronizedList(res);
        for (int i = 0; i < packageListJsonArray.length(); i++) {
            String host = "http://www.ckan.net/package/" + packageListJsonArray.get(i).toString();
            String baseUri = findBaseUri(
                    "http://www.ckan.net/api/rest/package/" + packageListJsonArray.get(i).toString());
            baseUri = (baseUri == null) ? host : baseUri;
            pool.execute(new MetadataReader(client, host, baseUri, CKAN.CKAN_CATALOG, synchedList));
        }
    } finally {
        if (pool != null) {
            pool.shutdown();
            pool.awaitTermination(4, TimeUnit.HOURS);
        }
        if (connectionManager != null)
            connectionManager.shutdown();
    }
}

From source file:org.opennms.netmgt.collectd.Collectd.java

/**
 * Constructor./*from  w  w  w.j  a va2 s.c o m*/
 */
public Collectd() {
    super(LOG4J_CATEGORY);

    m_collectableServices = Collections.synchronizedList(new LinkedList<CollectableService>());
}

From source file:com.aviary.android.feather.sdk.widget.AviaryWorkspace.java

private void reloadAdapter() {
    if (null != mAdapter) {
        mItemTypeCount = mAdapter.getViewTypeCount();
        mItemCount = mAdapter.getCount();

        mRecycleBin = Collections.synchronizedList(new ArrayList<Queue<View>>());
        for (int i = 0; i < mItemTypeCount; i++) {
            mRecycleBin.add(new LinkedList<View>());
        }//from  w w  w  .ja va 2s.  c  o m
    } else {
        mItemCount = 0;
    }

    mDataChanged = true;
    requestLayout();

}

From source file:com.teradata.benchto.driver.listeners.BenchmarkServiceExecutionListener.java

private CompletableFuture<List<Measurement>> getMeasurements(Measurable measurable) {
    List<CompletableFuture<?>> providerFutures = new ArrayList<>();
    List<Measurement> measurementsList = Collections.synchronizedList(new ArrayList<>());
    for (PostExecutionMeasurementProvider measurementProvider : measurementProviders) {
        CompletableFuture<?> future = measurementProvider.loadMeasurements(measurable)
                .thenAccept(measurementsList::addAll);
        providerFutures.add(future);//from w  ww . ja  va2s  . c  o m
    }

    return CompletableFuture.allOf(providerFutures.stream().toArray(CompletableFuture[]::new))
            .thenApply(aVoid -> ImmutableList.copyOf(measurementsList));
}