Example usage for java.lang ThreadLocal ThreadLocal

Introduction

In this page you can find the example usage for java.lang ThreadLocal ThreadLocal.

Prototype

public ThreadLocal() 

Source Link

Document

Creates a thread local variable.

Usage

From source file:com.aol.advertising.qiao.emitter.KafkaEmitter.java

@Override
public void suspend() {
    if (isSuspended.compareAndSet(false, true)) {
        threadLocalProducers = new ThreadLocal<KafkaProducer>();
    }//from ww w  . j av a2s.c o m
}

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From source file:com.nextep.datadesigner.hibernate.HibernateUtil.java

/**
 * This method handles the case when we loose connection with the repository database. <br>
 * <b>MUST BE CALLED WITHIN THE UI THREAD</b>
 *///from  w  w  w . ja  v a2  s.  c  o m
public void reconnectAll() {
    // Closing everything we can
    for (Session s : new ArrayList<Session>(ALL_SESSIONS)) {
        try {
            s.close();
        } catch (RuntimeException e) {
            // It may always fail, but there is not much we could do
            // Even logging would be useless and would complexify our logs...
        }
        ALL_SESSIONS.remove(s);
    }

    // Don't do that at home...
    /*
     * We don't want any old session to be reused since we may have been disconnected from the
     * network. This is to avoid having the same critical network message for every repository
     * connection we are using.
     */
    sandBoxSession = new ThreadLocal<Session>();

    // Resetting our SessionFactory
    initSessionFactory();

    // Reconnecting our main and sandbox sessions
    mainSession = openCachedSession();
    openSandBoxSession();
}

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From source file:org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.java

public static void staticDataCleanup() {
    reporter = new ThreadLocal<PigProgressable>();
}

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From source file:org.codice.alliance.plugin.nitf.NitfPostProcessPlugin.java

private BufferedImage render(InputStream inputStream,
        Function<Pair<ImageSegment, NitfRenderer>, BufferedImage> imageSegmentFunction)
        throws InterruptedException, NitfFormatException {

    final ThreadLocal<BufferedImage> bufferedImage = new ThreadLocal<>();

    if (inputStream != null) {
        try {/*from   w  w  w .j  a  v a2 s .  c  om*/
            available.acquire();
            NitfRenderer renderer = nitfRendererSupplier.get();
            NitfParserInputFlow parserInputFlow = nitfParserSupplier.get();

            parserInputFlow.inputStream(inputStream).allData().forEachImageSegment(segment -> {
                if (bufferedImage.get() == null) {
                    BufferedImage bi = imageSegmentFunction.apply(new ImmutablePair<>(segment, renderer));
                    if (bi != null) {
                        bufferedImage.set(bi);
                    }
                }
            }).end();
        } finally {
            IOUtils.closeQuietly(inputStream);
            available.release();
        }
    }

    BufferedImage image = bufferedImage.get();
    bufferedImage.remove();
    return image;
}

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From source file:com.espertech.esper.core.service.StatementResultServiceImpl.java

/**
 * Dispatches when the statement is stopped any remaining results.
 *///from   w ww  .j  ava 2  s .  c  o m
public void dispatchOnStop() {
    lastIterableEvent = null;
    ArrayDeque<UniformPair<EventBean[]>> dispatches = lastResults.get();
    if (dispatches.isEmpty()) {
        return;
    }
    execute();

    lastResults = new ThreadLocal<ArrayDeque<UniformPair<EventBean[]>>>() {
        protected synchronized ArrayDeque<UniformPair<EventBean[]>> initialValue() {
            return new ArrayDeque<UniformPair<EventBean[]>>();
        }
    };
}

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From source file:org.exoplatform.social.core.storage.impl.ActivityStreamStorageImpl.java

@Override
public void update(ProcessContext ctx) {
    final ReentrantLock lock = new ReentrantLock();
    ThreadLocal<Set<String>> idLocal = new ThreadLocal<Set<String>>();
    try {//from  ww  w . ja v  a2 s . c  om

        StreamProcessContext streamCtx = ObjectHelper.cast(StreamProcessContext.class, ctx);
        ExoSocialActivity activity = streamCtx.getActivity();
        ActivityEntity activityEntity = _findById(ActivityEntity.class, activity.getId());

        lock.lock(); // block until condition holds

        Collection<ActivityRef> references = activityEntity.getActivityRefs();
        Set<String> ids = new ConcurrentSkipListSet<String>();

        for (ActivityRef ref : references) {
            ids.add(ref.getId());
        }

        idLocal.set(ids);

        Set<String> idList = idLocal.get();
        if (idList.size() > 0) {
            for (String id : idList) {
                ActivityRef old = _findById(ActivityRef.class, id);
                LOG.debug("ActivityRef will be deleted: " + old.toString());
                ActivityRefListEntity refList = old.getDay().getMonth().getYear().getList();
                //
                if (refList.isOnlyUpdate(old, activity.getUpdated().getTime())) {
                    old.setName("" + activity.getUpdated().getTime());
                    old.setLastUpdated(activity.getUpdated().getTime());
                } else {
                    ActivityRef newRef = refList.getOrCreated(activity.getUpdated().getTime());
                    newRef.setLastUpdated(activity.getUpdated().getTime());
                    newRef.setActivityEntity(activityEntity);
                    getSession().remove(old);
                }

            }
        }

        // mentioners
        addMentioner(streamCtx.getMentioners(), activityEntity);
        //turnOffLock to get increase perf
        //turnOnUpdateLock = false;
    } catch (NodeNotFoundException ex) {
        LOG.warn("Probably was updated activity reference by another session");
        LOG.debug(ex.getMessage(), ex);
        //turnOnLock to avoid next exception
    } catch (ChromatticException ex) {
        Throwable throwable = ex.getCause();
        if (throwable instanceof ItemExistsException || throwable instanceof InvalidItemStateException
                || throwable instanceof PathNotFoundException) {
            LOG.warn("Probably was updated activity reference by another session");
            LOG.debug(ex.getMessage(), ex);
            //turnOnLock to avoid next exception
        } else {
            LOG.warn("Probably was updated activity reference by another session", ex);
            LOG.debug(ex.getMessage(), ex);
        }

    } finally {
        getSession().save();
        lock.unlock();
    }
}

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From source file:org.voltdb.exportclient.ExportToFileClient.java

public ExportToFileClient(char delimiter, String nonce, File outdir, int period, String dateformatString,
        String fullDelimiters, int firstfield, boolean useAdminPorts, boolean batched, boolean withSchema,
        int throughputMonitorPeriod, boolean autodiscoverTopolgy) {
    super(useAdminPorts, throughputMonitorPeriod, autodiscoverTopolgy);
    m_delimiter = delimiter;//from   w  w  w .j  a  v a  2  s  . c om
    m_extension = (delimiter == ',') ? ".csv" : ".tsv";
    m_nonce = nonce;
    m_outDir = outdir;
    m_tableDecoders = new HashMap<Long, HashMap<String, ExportToFileDecoder>>();
    m_period = period;
    m_dateFormatOriginalString = dateformatString;
    // SimpleDateFormat isn't threadsafe
    // ThreadLocal variables should protect them, lamely.
    m_dateformat = new ThreadLocal<SimpleDateFormat>() {
        @Override
        protected SimpleDateFormat initialValue() {
            return new SimpleDateFormat(m_dateFormatOriginalString);
        }
    };
    m_ODBCDateformat = new ThreadLocal<SimpleDateFormat>() {
        @Override
        protected SimpleDateFormat initialValue() {
            return new SimpleDateFormat(ODBC_DATE_FORMAT_STRING);
        }
    };
    m_firstfield = firstfield;
    m_batched = batched;
    m_withSchema = withSchema;

    if (fullDelimiters != null) {
        fullDelimiters = StringEscapeUtils.unescapeHtml4(fullDelimiters);
        m_fullDelimiters = new char[4];
        for (int i = 0; i < 4; i++) {
            m_fullDelimiters[i] = fullDelimiters.charAt(i);
            //System.out.printf("FULL DELIMETER %d: %c\n", i, m_fullDelimiters[i]);
        }
    } else {
        m_fullDelimiters = null;
    }

    // init the batch system with the first batch
    assert (m_current == null);
    m_current = new PeriodicExportContext(new Date());

    // schedule rotations every m_period minutes
    TimerTask rotateTask = new TimerTask() {
        @Override
        public void run() {
            roll(new Date());
        }
    };
    m_timer.scheduleAtFixedRate(rotateTask, 1000 * 60 * m_period, 1000 * 60 * m_period);
}

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From source file:org.jboss.dashboard.commons.filter.AbstractFilter.java

public FilterByCriteria cloneFilter() {
    try {/*from  ww w . j a  v a  2 s .  com*/
        AbstractFilter clone = (AbstractFilter) super.clone();
        clone._filterVarValues = new HashMap();
        clone._bshIntepreterThread = new ThreadLocal();
        clone.filterProperties = new ArrayList();
        Iterator it = filterProperties.iterator();
        while (it.hasNext()) {
            Object[] prop = (Object[]) it.next();
            Collection allowedValues = (Collection) prop[5];
            clone.filterProperties.add(new Object[] { prop[0], prop[1], prop[2], prop[3], prop[4],
                    allowedValues == null ? null : new ArrayList(allowedValues), prop[6], prop[7], prop[8] });
        }
        return clone;
    } catch (CloneNotSupportedException e) {
        log.error("Clone exception.", e);
        return null;
    }
}

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From source file:org.kaaproject.kaa.server.appenders.cassandra.appender.CassandraLogEventDao.java

private String formatTs(String tsValue, ColumnMappingElement element) {
    if (tsValue == null) {
        long ts = System.currentTimeMillis();
        final String pattern = element.getValue();
        if (pattern == null || pattern.isEmpty()) {
            tsValue = ts + "";
        } else {//from www  .j  ava 2 s.c o  m
            ThreadLocal<SimpleDateFormat> formatterTL = dateFormatMap.get(pattern);
            if (formatterTL == null) {
                formatterTL = new ThreadLocal<SimpleDateFormat>() {
                    @Override
                    protected SimpleDateFormat initialValue() {
                        return new SimpleDateFormat(pattern);
                    }
                };
                dateFormatMap.putIfAbsent(pattern, formatterTL);
            }
            SimpleDateFormat formatter = formatterTL.get();
            if (formatter == null) {
                formatter = new SimpleDateFormat(pattern);
                formatterTL.set(formatter);
            }
            tsValue = formatter.format(new Date(ts));
        }
    }
    return tsValue;
}

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From source file:com.espertech.esper.core.service.EPRuntimeIsolatedImpl.java

private void initThreadLocals() {
    matchesPerStmtThreadLocal = new ThreadLocal<Map<EPStatementAgentInstanceHandle, ArrayDeque<FilterHandleCallback>>>() {
        protected synchronized Map<EPStatementAgentInstanceHandle, ArrayDeque<FilterHandleCallback>> initialValue() {
            if (isPrioritized) {
                return new TreeMap<EPStatementAgentInstanceHandle, ArrayDeque<FilterHandleCallback>>(
                        EPStatementAgentInstanceHandleComparator.INSTANCE);
            } else {
                return new HashMap<EPStatementAgentInstanceHandle, ArrayDeque<FilterHandleCallback>>();
            }/* w  w w .  ja  va 2  s  .  c o  m*/
        }
    };

    schedulePerStmtThreadLocal = new ThreadLocal<Map<EPStatementAgentInstanceHandle, Object>>() {
        protected synchronized Map<EPStatementAgentInstanceHandle, Object> initialValue() {
            if (isPrioritized) {
                return new TreeMap<EPStatementAgentInstanceHandle, Object>(
                        EPStatementAgentInstanceHandleComparator.INSTANCE);
            } else {
                return new HashMap<EPStatementAgentInstanceHandle, Object>();
            }
        }
    };

    matchesArrayThreadLocal = new ThreadLocal<ArrayBackedCollection<FilterHandle>>() {
        protected synchronized ArrayBackedCollection<FilterHandle> initialValue() {
            return new ArrayBackedCollection<FilterHandle>(100);
        }
    };

    scheduleArrayThreadLocal = new ThreadLocal<ArrayBackedCollection<ScheduleHandle>>() {
        protected synchronized ArrayBackedCollection<ScheduleHandle> initialValue() {
            return new ArrayBackedCollection<ScheduleHandle>(100);
        }
    };
}

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