Example usage for java.util.concurrent ExecutorService shutdown

List of usage examples for java.util.concurrent ExecutorService shutdown

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Introduction

In this page you can find the example usage for java.util.concurrent ExecutorService shutdown.

Prototype

void shutdown();

Source Link

Document

Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be accepted.

Usage

From source file:agileinterop.AgileInterop.java

private static JSONObject getPSRData(String body) throws ParseException, InterruptedException, APIException {
    // Parse body as JSON
    JSONParser parser = new JSONParser();
    JSONArray jsonBody = (JSONArray) parser.parse(body);

    Map<String, Object> data = new HashMap<>();

    class GetObjectData implements Runnable {
        private String psrNumber;
        private Map<String, Object> data;
        private IServiceRequest psr;

        public GetObjectData(String psrNumber, Map<String, Object> data)
                throws APIException, InterruptedException {
            this.psrNumber = psrNumber;
            this.data = data;

            psr = (IServiceRequest) Agile.session.getObject(IServiceRequest.OBJECT_TYPE, psrNumber);
        }/*from  w  ww  .  j  a  v  a 2s .  c  o m*/

        @Override
        public void run() {
            this.data.put(psrNumber, new HashMap<String, Object>());

            try {
                if (psr != null) {
                    getCellValues();
                    getAttachments();
                    getHistory();
                }
            } catch (APIException ex) {
                Logger.getLogger(AgileInterop.class.getName()).log(Level.SEVERE, null, ex);
            }
        }

        private void getCellValues() throws APIException {
            Map<String, Object> cellValues = new HashMap<>();

            long startTime = System.currentTimeMillis();

            // Get cell values
            ICell[] cells = psr.getCells();
            for (ICell cell : cells) {
                if (cell.getDataType() == DataTypeConstants.TYPE_DATE) {
                    if (cell.getValue() != null) {
                        SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy hh:mm:ss a zz");
                        sdf.setTimeZone(TimeZone.getTimeZone("Europe/London"));
                        cellValues.put(cell.getName(), sdf.format((Date) cell.getValue()));
                    } else {
                        cellValues.put(cell.getName(), cell.toString());
                    }
                } else {
                    cellValues.put(cell.getName(), cell.toString());
                }
            }

            long endTime = System.currentTimeMillis();

            String logMessage = String.format("%s: getCellValues executed in %d milliseconds", psrNumber,
                    endTime - startTime);
            System.out.println(logMessage);

            ((HashMap<String, Object>) this.data.get(psrNumber)).put("cellValues", cellValues);
        }

        private void getAttachments() throws APIException {
            List<Map<String, String>> attachments = new ArrayList<>();

            long startTime = System.currentTimeMillis();

            // Get attachments information
            ITable table = psr.getTable("Attachments");
            ITwoWayIterator tableIterator = table.getTableIterator();
            while (tableIterator.hasNext()) {
                IRow row = (IRow) tableIterator.next();
                Map<String, String> attachment = new HashMap<>();

                ICell[] cells = row.getCells();
                for (ICell cell : cells) {
                    if (cell.getDataType() == DataTypeConstants.TYPE_DATE) {
                        if (cell.getValue() != null) {
                            SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy hh:mm:ss a zz");
                            sdf.setTimeZone(TimeZone.getTimeZone("Europe/London"));
                            attachment.put(cell.getName(), sdf.format((Date) cell.getValue()));
                        } else {
                            attachment.put(cell.getName(), cell.toString());
                        }
                    } else {
                        attachment.put(cell.getName(), cell.toString());
                    }
                }

                attachments.add(attachment);
            }

            long endTime = System.currentTimeMillis();

            String logMessage = String.format("%s: getAttachments executed in %d milliseconds", psrNumber,
                    endTime - startTime);
            System.out.println(logMessage);

            ((HashMap<String, Object>) this.data.get(psrNumber)).put("attachments", attachments);
        }

        private void getHistory() throws APIException {
            List<Map<String, String>> histories = new ArrayList<>();

            long startTime = System.currentTimeMillis();

            // Get history information
            ITable table = psr.getTable("History");
            ITwoWayIterator tableIterator = table.getTableIterator();
            while (tableIterator.hasNext()) {
                IRow row = (IRow) tableIterator.next();
                Map<String, String> history = new HashMap<>();

                ICell[] cells = row.getCells();
                for (ICell cell : cells) {
                    if (cell.getDataType() == DataTypeConstants.TYPE_DATE) {
                        if (cell.getValue() != null) {
                            SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy hh:mm:ss a zz");
                            sdf.setTimeZone(TimeZone.getTimeZone("Europe/London"));
                            history.put(cell.getName(), sdf.format((Date) cell.getValue()));
                        } else {
                            history.put(cell.getName(), cell.toString());
                        }
                    } else {
                        history.put(cell.getName(), cell.toString());
                    }
                }

                histories.add(history);
            }

            long endTime = System.currentTimeMillis();

            String logMessage = String.format("%s: getHistory executed in %d milliseconds", psrNumber,
                    endTime - startTime);
            System.out.println(logMessage);

            ((HashMap<String, Object>) this.data.get(psrNumber)).put("history", histories);
        }
    }

    synchronized (data) {
        // Do something funky with the first one
        Thread t = new Thread(new GetObjectData(jsonBody.get(0).toString(), data));
        t.start();
        t.join();

        ExecutorService executor = Executors.newFixedThreadPool(10);
        for (Object object : jsonBody.subList(1, jsonBody.size() - 1)) {
            executor.execute(new Thread(new GetObjectData(object.toString(), data)));
        }

        executor.shutdown();
        while (!executor.isTerminated()) {
        }
    }

    JSONObject obj = new JSONObject();
    obj.put("data", data);
    return obj;
}

From source file:com.dsclab.loader.app.Loader.java

public static void load(Configs prop)
        throws SQLException, ClassNotFoundException, InterruptedException, ExecutionException {
    int readThread = prop.getReadThread();
    int writeThread = prop.getWriteThread();
    ExecutorService readExecutor = Executors.newFixedThreadPool(readThread);
    ExecutorService writeExecutor = Executors.newFixedThreadPool(writeThread);
    LOG.info("Start load: writeThread:" + writeThread + ", readThread:" + readThread);
    BlockingQueue<List<String>> contentQueue = new LinkedBlockingQueue<>();

    int tableCount = tableTask.size();
    int sum = 0;/*ww w.  j a v a  2s  . c om*/
    for (int i = 0; i < tableCount; i++) {
        sum = sum + tableTask.get(i).getTaskSqlList().size();
    }
    for (int i = 0; i < sum; i++) {
        readExecutor.submit(new ProducerThread(prop.getInputURL(), contentQueue));
        writeExecutor.submit(new ConsumerThread(prop.getOutputURL(), contentQueue));
    }

    readExecutor.shutdown();
    readExecutor.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
    System.out.println("[CHIA7712] read threads end");
    writeExecutor.shutdown();
    writeExecutor.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
    System.out.println("[CHIA7712] write threads end");
}

From source file:org.lambdamatic.internal.elasticsearch.codec.ObjectMapperFactory.java

/**
 * Initializes an {@link ObjectMapper} configured with mixins to support serialization and
 * deserialization of all built-in and user-defined domain types.
 * <p>//w  w w.  j  a va 2s. c om
 * <strong>Note:</strong>The {@link ObjectMapper} is instantiated and initialized once and then
 * kept in cache, so multiple calls will retrieve the same instance.
 * </p>
 * 
 * @return the {@link ObjectMapper}
 * 
 */
public static ObjectMapper getObjectMapper() {
    if (instance.objectMapper == null) {
        LOGGER.info("Initializing the ObjectMapper");
        final ObjectMapper mapper = new ObjectMapper();
        final ExecutorService availableProcessorsThreadPool = Executors
                .newFixedThreadPool(Runtime.getRuntime().availableProcessors());
        final Reflections reflections = new Reflections(new ConfigurationBuilder()

                // TODO: allow for configuration settings to reduce the scope of searching, using package
                // names instead of a classloader
                .setUrls(ClasspathHelper.forJavaClassPath())
                // .setUrls(ClasspathHelper.forClassLoader())
                .setScanners(new SubTypesScanner(), new TypeAnnotationsScanner())
                .setExecutorService(availableProcessorsThreadPool));
        // thread pool must be closed after it has been used, to avoid leaking threads in the JVM.
        availableProcessorsThreadPool.shutdown();
        // final Reflections reflections = new Reflections();
        reflections.getTypesAnnotatedWith(Mixin.class).stream().forEach(mixin -> {
            final Mixin mixinAnnotation = mixin.getAnnotation(Mixin.class);
            LOGGER.info("Adding mixin {} to {}", mixin, mixinAnnotation.target());
            mapper.addMixIn(mixinAnnotation.target(), mixin);
        });
        mapper.registerModule(new JavaTimeModule());
        // configure LocalDate serialization as string with pattern: YYYY-mm-dd
        mapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
        instance.objectMapper = mapper;
    }
    return instance.objectMapper;
}

From source file:gda.device.detector.mythen.data.MythenDataFileUtils.java

/**
 * Reads the specified Mythen processed data files.
 * //from   ww w  .  jav  a  2s .co  m
 * @param filenames
 *            the names of the files to read
 * @return 3D double array of data
 */
public static double[][][] readMythenProcessedDataFiles(String filenames[]) {
    // 3D array of data; will be filled in by tasks (one task per file to be loaded)
    final double[][][] data = new double[filenames.length][][];

    // thread pool for loading files
    // 4 threads seems to give good results
    ExecutorService executor = Executors.newFixedThreadPool(4);

    // create and execute a task for each file to be loaded
    for (int i = 0; i < filenames.length; i++) {
        final int index = i;
        final String filename = filenames[i];
        Runnable r = new Runnable() {
            @Override
            public void run() {
                data[index] = readMythenProcessedDataFile(filename, false);
            }

        };
        executor.execute(r);
    }

    // wait until executor has shut down
    executor.shutdown();
    try {
        boolean terminated = executor.awaitTermination(1, TimeUnit.MINUTES);
        if (!terminated) {
            throw new Exception("Timed out waiting for files to load");
        }
    } catch (Exception e) {
        throw new RuntimeException("Unable to load data", e);
    }

    return data;
}

From source file:com.laudandjolynn.mytv.Main.java

/**
 * ?//  w  ww . j a  v  a  2 s .  c o  m
 * 
 * @param data
 * @param tvService
 */
private static void createEverydayCron(final MyTvData data, final TvService tvService) {
    ScheduledExecutorService scheduled = new ScheduledThreadPoolExecutor(3,
            new BasicThreadFactory.Builder().namingPattern("Mytv_Scheduled_Task").build());
    Date today = new Date();
    String nextWeek = DateUtils.date2String(DateUtils.nextWeek(today), "yyyy-MM-dd 00:01:00");
    long crawlTaskInitDelay = (DateUtils.string2Date(nextWeek).getTime() - today.getTime()) / 1000;
    logger.info("cron crawler task will be automatic start after " + crawlTaskInitDelay + " seconds at "
            + nextWeek);
    scheduled.scheduleWithFixedDelay(new Runnable() {

        @Override
        public void run() {
            Date[] weeks = DateUtils.getWeek(new Date());
            logger.info("begin to crawl program table of " + Arrays.deepToString(weeks));
            ExecutorService executorService = Executors.newFixedThreadPool(Constant.CPU_PROCESSOR_NUM,
                    new BasicThreadFactory.Builder().namingPattern("Mytv_Schedule_Crawl_Program_Table_%d")
                            .build());
            List<TvStation> stationList = tvService.getDisplayedTvStation();
            for (Date date : weeks) {
                crawlAllProgramTable(stationList, executorService, DateUtils.date2String(date, "yyyy-MM-dd"),
                        tvService);
            }
            executorService.shutdown();
        }
    }, crawlTaskInitDelay, 604860, TimeUnit.SECONDS);

    // ??
    String nextDate = DateUtils.tommorow() + " 23:00:00";
    long commonInitDelay = (DateUtils.string2Date(nextDate).getTime() - today.getTime()) / 1000;
    logger.info("cron refresh proxy task will be automatic start after " + commonInitDelay + " seconds at "
            + nextDate);
    scheduled.scheduleWithFixedDelay(new Runnable() {

        @Override
        public void run() {
            logger.info("begin to refresh proxies.");
            MyTvProxyManager.getInstance().refresh();
        }
    }, commonInitDelay, 86400, TimeUnit.SECONDS);

    // 
    logger.info("cron refresh cache task will be automatic start after " + commonInitDelay + " seconds at "
            + nextDate);
    scheduled.scheduleWithFixedDelay(new Runnable() {

        @Override
        public void run() {
            logger.info("begin to refresh caches.");
            makeCache(tvService);
        }
    }, commonInitDelay, 86400, TimeUnit.SECONDS);

    // scheduled?????
    // scheduled.shutdown();
}

From source file:it.unibo.alchemist.language.EnvironmentBuilder.java

private static <T> Future<Result<T>> build(final EnvironmentBuilder<T> builder) {
    final ExecutorService ex = Executors.newSingleThreadExecutor();
    final Future<Result<T>> result = ex.submit(() -> {
        builder.buildEnvironment();// w  w w. j a  va2s .  c  o  m
        return Result.build(builder.result, builder.random);
    });
    ex.shutdown();
    return result;
}

From source file:no.ntnu.idi.socialhitchhiking.client.RequestTask.java

/**
 * Static method which adds elements and data to an xml file and sends it as a string to the server.
 * /*from  w w w  .ja va  2  s. c  o m*/
 * @param req - {@link Request}
 * @return returns a subclass of {@link Response} to the input {@link Request}
 * @throws ClientProtocolException 
 * @throws MalformedURLException
 * @throws FileNotFoundException
 * @throws IOException
 * @throws ExecutionException 
 * @throws InterruptedException 
 */
public static Response sendRequest(final Request req, final Context c)
        throws ClientProtocolException, IOException, InterruptedException, ExecutionException {
    /**
     * Code for putting all all network communication on separate thread as required by higher Android APIs
     */
    ExecutorService executor = Executors.newSingleThreadExecutor();
    Callable<Response> callable = new Callable<Response>() {
        @Override
        /**
         * This contains the actual code for initiating the communication
         */
        public Response call() throws ClientProtocolException, IOException {
            String xml = RequestSerializer.serialize(req);
            con = c;
            String url = con.getResources().getString(R.string.server_url);
            RequestTask requestTask = new RequestTask(url, xml);

            return ResponseParser.parse(requestTask.getResponse());
        }
    };
    /**
     * Execute and retrieve result from network operation
     */
    Future<Response> future = executor.submit(callable);
    Response ret = future.get();
    executor.shutdown();
    return ret;
}

From source file:agileinterop.AgileInterop.java

private static JSONObject getPSRList(String body)
        throws ParseException, InterruptedException, java.text.ParseException, Exception {
    // Parse body as JSON
    JSONParser parser = new JSONParser();
    JSONObject jsonBody = (JSONObject) parser.parse(body);

    Date startDateOriginated = new SimpleDateFormat("MM/dd/yyyy")
            .parse(jsonBody.get("startDateOriginated").toString());
    Date endDateOriginated = new SimpleDateFormat("MM/dd/yyyy")
            .parse(jsonBody.get("endDateOriginated").toString());

    List<String> data = new ArrayList<>();

    class getPSRListForDate implements Runnable {
        private Date dateOriginated;
        private List<String> data;

        public getPSRListForDate(Date dateOriginated, List<String> data) {
            this.dateOriginated = dateOriginated;
            this.data = data;
        }//from  www . ja  v a  2 s.c o  m

        public getPSRListForDate(List<String> data) {
            this.data = data;
        }

        @Override
        public void run() {
            try {
                String dateOriginatedString = new SimpleDateFormat("MM/dd/yyyy").format(dateOriginated);

                Long startTime = System.currentTimeMillis();

                IQuery query = (IQuery) Agile.session.createObject(IQuery.OBJECT_TYPE,
                        "Product Service Requests");

                String criteria = "[Cover Page.Date Originated] == '" + dateOriginatedString
                        + " 12:00:00 AM GMT' AND "
                        + "[Cover Page.Type] IN ('Customer Complaint', 'Customer Inquiry', 'Partner Complaint', "
                        + "'Reportable Malfunction / Adverse Event', 'Ancillary Devices & Applications', 'Distributors / Partners', "
                        + "'MDR Decision Tree', 'Investigation Report - No RGA', 'Investigation Report - RGA')";
                query.setCriteria(criteria);

                query.setResultAttributes(new Integer[] { 4856 }); // 4856 = Object ID of [Cover Page.PSR Number]

                ITable queryResults = query.execute();
                queryResults.setPageSize(5000);

                ITwoWayIterator tableIterator = queryResults.getTableIterator();
                while (tableIterator.hasNext()) {
                    IRow row = (IRow) tableIterator.next();
                    data.add(row.getCell(4856).toString()); // 4856 = Object ID of [Cover Page.PSR Number]
                }

                Long endTime = System.currentTimeMillis();

                String logMessage = String.format("getPSRList: Query for %s executed in %d milliseconds",
                        new SimpleDateFormat("yyyy-MM-dd").format(dateOriginated), endTime - startTime);
                System.out.println(logMessage);
            } catch (APIException ex) {
                Logger.getLogger(AgileInterop.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }

    if (startDateOriginated.after(endDateOriginated)) {
        throw new Exception("startDateOriginated is after endDateOriginated. This makes no sense, silly.");
    }

    synchronized (data) {
        Date currentDateOriginated = startDateOriginated;

        ExecutorService executor = Executors.newFixedThreadPool(6);
        do {
            executor.execute(new Thread(new getPSRListForDate(currentDateOriginated, data)));

            Calendar c = Calendar.getInstance();
            c.setTime(currentDateOriginated);
            c.add(Calendar.DATE, 1);

            currentDateOriginated = c.getTime();
        } while (currentDateOriginated.before(endDateOriginated)
                | currentDateOriginated.equals(endDateOriginated));

        executor.shutdown();
        while (!executor.isTerminated()) {
        }
    }

    JSONObject obj = new JSONObject();
    obj.put("data", data);
    return obj;
}

From source file:com.dattack.dbtools.drules.engine.DrulesEngine.java

private static SourceResultGroup getSourceResultsList(final List<SourceBean> sourceList)
        throws DrulesNestableException {

    final ExecutorService executorService = Executors.newCachedThreadPool(createThreadFactory());

    final List<Future<SourceResult>> futureList = new ArrayList<>();

    for (final SourceBean sourceBean : sourceList) {
        futureList.add(executorService.submit(new SourceExecutor(sourceBean,
                ConfigurationUtils.cloneConfiguration(ThreadContext.getInstance().getConfiguration()))));
    }//from w  w w .j av a  2 s  . c o m

    final SourceResultGroup sourceResultList = new SourceResultGroup();

    for (final Future<SourceResult> future : futureList) {
        try {
            sourceResultList.add(future.get());
        } catch (InterruptedException | ExecutionException e) {
            throw new DrulesNestableException(e);
        }
    }
    executorService.shutdown();

    return sourceResultList;
}

From source file:ejp.examples.MultiThreadedWithConnectionPooling.java

static void execute(final DatabaseManager dbm) throws DatabaseException, InterruptedException {
    long time = System.currentTimeMillis();
    ExecutorService exec = Executors.newFixedThreadPool(100);

    System.out.println("\n\nWorking ...");

    Runnable runnable = new Runnable() {
        public void run() {
            for (int t = 0; t < 100; t++) {
                try {
                    new UpdateManager(dbm) {
                        public void run() throws DatabaseException {
                            for (int j = 0; j < 100; j++) {
                                saveObject(new Dog(String.valueOf(Count.get()), Count.get()));
                                Count.count();
                            }/*from w  w w .j  av a 2  s. c o  m*/
                        }
                    }.executeBatchUpdates();
                } catch (DatabaseException e) {
                    e.printStackTrace();
                }
            }
        }
    };

    for (int i = 0; i < 100; i++) {
        exec.execute(runnable);
    }

    exec.shutdown();
    exec.awaitTermination(100, TimeUnit.SECONDS);
    time = (System.currentTimeMillis() - time) / 1000;

    System.out.println("\n\n" + Count.count + " dogs added to database in " + time + " seconds");

    Long count = ((Collection<Long>) dbm.executeQuery(new ArrayList<Long>(), true, "select count(*) from dog"))
            .toArray(new Long[1])[0];
    System.out.println("select count(*) from dog = " + count);
}