Example usage for com.google.common.base Stopwatch Stopwatch

List of usage examples for com.google.common.base Stopwatch Stopwatch

  1. HOME
  2. Java
  3. com.google.common
  4. com.google.common.base.*
  5. Stopwatch
  6. Stopwatch

Introduction

In this page you can find the example usage for com.google.common.base Stopwatch Stopwatch.

Prototype

Stopwatch()

Source Link

Usage

From source file:com.google.walkaround.util.server.RetryHelper.java

public <R> R run(Body<R> b) throws PermanentFailure {
    Stopwatch stopwatch = new Stopwatch().start();
    for (int retries = 0; true; retries++) {
        try {//from w  ww .j  a v  a  2s .  c om
            return runBodyOnce(b);
        } catch (RetryableFailure e) {
            long elapsedMillis = stopwatch.elapsedMillis();
            log.log(Level.WARNING, "Problem on retry " + retries + ", millis elapsed so far: " + elapsedMillis,
                    e);
            long delayMillis = retryStrategy.delayMillisBeforeRetry(retries, elapsedMillis, e);
            if (delayMillis < 0) {
                log.warning("Negative delay: " + delayMillis);
                delayMillis = 100;
            }
            log.info("Sleeping for " + delayMillis + " millis");
            try {
                Thread.sleep(delayMillis);
            } catch (InterruptedException e2) {
                Thread.currentThread().interrupt();
                throw new PermanentFailure("Interrupted while waiting to retry; " + retries + " tries total, "
                        + stopwatch.elapsedMillis() + " millis elapsed", e2);
            }
        }
    }
}

From source file:co.cask.cdap.test.MetricsManager.java

/**
 * waitFor a metric value count for the metric identified by metricName and context.
 * @param tags - context identified by tags map
 * @param metricName/*from ww w. j av  a 2  s.co m*/
 * @param count - expected metric total count value
 * @param timeout
 * @param timeoutUnit
 * @throws TimeoutException
 * @throws InterruptedException
 */
public void waitForTotalMetricCount(Map<String, String> tags, String metricName, long count, long timeout,
        TimeUnit timeoutUnit) throws TimeoutException, InterruptedException {
    long value = getTotalMetric(tags, metricName);

    // Min sleep time is 10ms, max sleep time is 1 seconds
    long sleepMillis = Math.max(10, Math.min(timeoutUnit.toMillis(timeout) / 10, TimeUnit.SECONDS.toMillis(1)));
    Stopwatch stopwatch = new Stopwatch().start();
    while (value < count && stopwatch.elapsedTime(timeoutUnit) < timeout) {
        TimeUnit.MILLISECONDS.sleep(sleepMillis);
        value = getTotalMetric(tags, metricName);
    }

    if (value < count) {
        throw new TimeoutException("Time limit reached: Expected '" + count + "' but got '" + value + "'");
    }
}

From source file:co.cask.cdap.data2.util.hbase.DefaultHBaseDDLExecutor.java

@Override
public void createTableIfNotExists(TableDescriptor descriptor, @Nullable byte[][] splitKeys)
        throws IOException {
    HTableDescriptor htd = getHTableDescriptor(descriptor);
    if (admin.tableExists(htd.getName())) {
        return;/*w  ww .j  av a  2  s  . c  o  m*/
    }

    boolean tableExistsFailure = false;
    try {
        LOG.debug("Attempting to create table '{}' if it does not exist", Bytes.toString(htd.getName()));
        admin.createTable(htd, splitKeys);
    } catch (TableExistsException e) {
        // table may exist because someone else is creating it at the same
        // time. But it may not be available yet, and opening it might fail.
        LOG.debug("Table '{}' already exists.", Bytes.toString(htd.getName()), e);
        tableExistsFailure = true;
    }

    // Wait for table to materialize
    try {
        Stopwatch stopwatch = new Stopwatch();
        stopwatch.start();
        long sleepTime = TimeUnit.MILLISECONDS.toNanos(5000L) / 10;
        sleepTime = sleepTime <= 0 ? 1 : sleepTime;
        do {
            if (admin.tableExists(htd.getName())) {
                if (tableExistsFailure) {
                    LOG.info("Table '{}' exists now. Assuming that another process concurrently created it.",
                            Bytes.toString(htd.getName()));
                } else {
                    LOG.info("Table '{}' created.", Bytes.toString(htd.getName()));
                }
                return;
            } else {
                TimeUnit.NANOSECONDS.sleep(sleepTime);
            }
        } while (stopwatch.elapsedTime(TimeUnit.MILLISECONDS) < 5000L);
    } catch (InterruptedException e) {
        LOG.warn("Sleeping thread interrupted.");
    }
    LOG.error("Table '{}' does not exist after waiting {} ms. Giving up.", Bytes.toString(htd.getName()),
            MAX_CREATE_TABLE_WAIT);
}

From source file:fr.ippon.wip.transformers.CSSTransformer.java

/**
 * Transform the given CSS code: add the prefix defined in portlet config
 * before each selectors, rewrite URL thanks to the CSS regex defined in
 * config, remove absolute positionning and add custom CSS.
 * /*from   w  ww  .  j a v  a 2 s.com*/
 * @param input
 *            the string corresponding to the CSS code
 * @return a string corresponding to the transformed CSS code
 * @throws TransformerException
 */
public String transform(String input) throws SAXException, IOException, TransformerException {
    super.transform(input);

    Stopwatch stopwatch = new Stopwatch().start();
    if (wipConfig.isEnableCssRewriting()) {
        // Getting prefix
        final String wip = "\n." + wipConfig.getPortletDivId() + " ";

        // removing comments
        input = input.replaceAll("\\/\\*[^*]*\\*+([^/*][^*]*\\*+)*\\/", "");

        // Removing all double white spaced characters
        input = input.replaceAll("\\r|\\n", "");
        input = input.replaceAll(System.getProperty("line.separator"), "");
        input = " " + input;

        // Parsing the file to add the wip prefix before selectors
        if (wipConfig.isAddPrefix()) {
            StringBuilder aux = new StringBuilder();
            String imported = "";
            String selector;

            int index = 0;
            int blocStart = input.indexOf("{", 0);
            int blocEnd = input.indexOf("}", 0);

            if (blocStart > -1) {
                do {
                    selector = input.substring(index + 1, blocStart).trim();
                    if (selector.startsWith("@import") || selector.startsWith("@CHARSET")) {
                        // Get import and save it
                        int i = input.indexOf(";", index);
                        imported += input.substring(index + 1, i + 1);
                        index = i;

                    } else {
                        if (selector.startsWith("@media")) {
                            // this code should transform css code inside
                            // @media, but it make the browser freezing...
                            // Pattern pattern = Pattern.compile("\\s*\\{");
                            // Matcher matcher =
                            // pattern.matcher(input).region(index + 1,
                            // input.length());
                            // matcher.find();
                            // int startMediaCss = matcher.end();
                            //
                            // pattern = Pattern.compile("\\}\\s*\\}");
                            // matcher =
                            // pattern.matcher(input).region(startMediaCss,
                            // input.length());
                            // matcher.find();
                            // int endMediaCss = matcher.start() + 1;
                            // blocEnd = matcher.end();
                            //
                            // String transformedMediaCss =
                            // transform(input.substring(startMediaCss,
                            // endMediaCss));
                            // String result = "\n" + selector + "{" +
                            // transformedMediaCss + "}";
                            // aux.append(result);

                            // Copy the entire bloc without modification
                            blocEnd = input.indexOf("}}", index) + 1;
                            if (blocEnd < 1)
                                blocEnd = input.indexOf("} }", index) + 1;

                            aux.append("\n" + selector);
                            aux.append(input.substring(blocStart, blocEnd + 1));

                        } else {
                            if (selector.contains(","))
                                selector = selector.replaceAll(",", "," + wip);
                            aux.append("\n" + wip + selector);
                            aux.append(input.substring(blocStart, blocEnd + 1));
                        }

                        // Next step
                        index = blocEnd;
                        blocStart = input.indexOf("{", index);
                        blocEnd = input.indexOf("}", blocStart);
                    }
                } while (blocStart > -1);

                input = imported + aux.toString();
            }
        }

        // Rewriting URLs
        String regex = wipConfig.getCssRegex();
        input = rewrite(regex, input, response);

        // Removing position: absolute;
        if (!wipConfig.isAbsolutePositioning())
            input = input.replaceAll("absolute", "relative");

    }

    timeProcess.set(stopwatch.elapsedMillis());
    return input;
}

From source file:com.springer.omelet.mail.Email.java

/***
 * Return List of Message filter by Subject,From_ADD,To_ADDR
 * //from w w w  .j  a  v a2s  .co m
 * @param emailFilter
 * @param filterText
 *            :text present in Subject of email
 * @return
 */
public List<Message> getMessages(EMAIL_FILTER emailFilter, String filterText) {
    Stopwatch sw = new Stopwatch();
    sw.start();

    List<Message> returnMessage = new ArrayList<Message>();
    int loopCount;
    try {
        folder.open(Folder.READ_ONLY);
        Message[] msgs = folder.getMessages();
        int inboMessageCount = folder.getMessageCount();
        LOGGER.info("Message count is:" + inboMessageCount);
        if (inboMessageCount < maxcountEMailCheck) {
            loopCount = 0;
        } else {
            loopCount = inboMessageCount - maxcountEMailCheck;
        }
        for (int i = inboMessageCount - 1; i >= loopCount; i--) {
            switch (emailFilter) {
            case SUBJECT:
                if (msgs[i].getSubject().toString().equalsIgnoreCase(filterText)) {
                    returnMessage.add(msgs[i]);
                }
                break;
            case FROM_ADD:
                // Assumption is from address is only one
                if (msgs[i].getFrom()[0].toString().contains(filterText)) {
                    returnMessage.add(msgs[i]);
                }
                break;
            case TO_ADDR:
                for (Address addr : msgs[i].getRecipients(RecipientType.TO)) {
                    LOGGER.info("Sno:" + i + "To Email Add is" + addr.toString());
                    if (addr.toString().contains(filterText)) {
                        returnMessage.add(msgs[i]);
                    }
                }
                break;
            default:
                break;
            }
        }
        // CLose the folder
        folder.close(true);
    } catch (MessagingException e) {
        LOGGER.error(e);
    }
    sw.stop();
    LOGGER.info("Time Taken by getMessage is" + sw.elapsedTime(TimeUnit.SECONDS));
    return returnMessage;
}

From source file:org.apache.hadoop.hbase.ScanPerformanceEvaluation.java

public void testScan() throws IOException {
    Stopwatch tableOpenTimer = new Stopwatch();
    Stopwatch scanOpenTimer = new Stopwatch();
    Stopwatch scanTimer = new Stopwatch();

    tableOpenTimer.start();/*from ww w.j  av  a  2 s  .  c  om*/
    HTable table = new HTable(getConf(), TableName.valueOf(tablename));
    tableOpenTimer.stop();

    Scan scan = getScan();
    scanOpenTimer.start();
    ResultScanner scanner = table.getScanner(scan);
    scanOpenTimer.stop();

    long numRows = 0;
    long numCells = 0;
    scanTimer.start();
    while (true) {
        Result result = scanner.next();
        if (result == null) {
            break;
        }
        numRows++;

        numCells += result.rawCells().length;
    }
    scanTimer.stop();
    scanner.close();
    table.close();

    ScanMetrics metrics = ProtobufUtil.toScanMetrics(scan.getAttribute(Scan.SCAN_ATTRIBUTES_METRICS_DATA));
    long totalBytes = metrics.countOfBytesInResults.get();
    double throughput = (double) totalBytes / scanTimer.elapsedTime(TimeUnit.SECONDS);
    double throughputRows = (double) numRows / scanTimer.elapsedTime(TimeUnit.SECONDS);
    double throughputCells = (double) numCells / scanTimer.elapsedTime(TimeUnit.SECONDS);

    System.out.println("HBase scan: ");
    System.out.println("total time to open table: " + tableOpenTimer.elapsedMillis() + " ms");
    System.out.println("total time to open scanner: " + scanOpenTimer.elapsedMillis() + " ms");
    System.out.println("total time to scan: " + scanTimer.elapsedMillis() + " ms");

    System.out.println("Scan metrics:\n" + metrics.getMetricsMap());

    System.out.println(
            "total bytes: " + totalBytes + " bytes (" + StringUtils.humanReadableInt(totalBytes) + ")");
    System.out.println("throughput  : " + StringUtils.humanReadableInt((long) throughput) + "B/s");
    System.out.println("total rows  : " + numRows);
    System.out.println("throughput  : " + StringUtils.humanReadableInt((long) throughputRows) + " rows/s");
    System.out.println("total cells : " + numCells);
    System.out.println("throughput  : " + StringUtils.humanReadableInt((long) throughputCells) + " cells/s");
}

From source file:com.twitter.hraven.rest.RestJSONResource.java

@GET
@Path("job/{cluster}/{jobId}")
@Produces(MediaType.APPLICATION_JSON)/*from   ww w  .  j av a  2  s  .  com*/
public JobDetails getJobById(@PathParam("cluster") String cluster, @PathParam("jobId") String jobId,
        @QueryParam("include") List<String> includeFields) throws IOException {
    LOG.info("Fetching JobDetails for jobId=" + jobId);
    Stopwatch timer = new Stopwatch().start();
    Predicate<String> includeFilter = null;
    if (includeFields != null && !includeFields.isEmpty()) {
        includeFilter = new SerializationContext.FieldNameFilter(includeFields);
    }
    serializationContext.set(new SerializationContext(SerializationContext.DetailLevel.EVERYTHING, null, null,
            includeFilter, null));
    JobDetails jobDetails = getJobHistoryService().getJobByJobID(cluster, jobId);
    timer.stop();
    if (jobDetails != null) {
        LOG.info("For job/{cluster}/{jobId} with input query:" + " job/" + cluster + SLASH + jobId + "&"
                + StringUtil.buildParam("include", includeFields) + " fetched jobDetails for "
                + jobDetails.getJobName() + " in " + timer);
    } else {
        LOG.info("For job/{cluster}/{jobId} with input query:" + " job/" + cluster + SLASH + jobId + "&"
                + StringUtil.buildParam("include", includeFields) + " No jobDetails found, but spent " + timer);
    }
    // export latency metrics
    HravenResponseMetrics.JOB_API_LATENCY_VALUE.set(timer.elapsed(TimeUnit.MILLISECONDS));

    return jobDetails;

}

From source file:yaphyre.raytracer.RayTracer.java

/**
 * The real rendering loop. This takes the given camera and renders the scene from its view. Notice: This method does
 * no rendering on its own, but calls the {@link #renderWindow(yaphyre.core.Camera, Sampler, RenderWindow,
 * Transformation)} method which renders a part of the image designated by the given {@link RenderWindow}.<br/> This
 * method is responsible for preparing the rendering and managing the multi-threaded execution of the rendering
 * process.//  w ww . j av  a 2s.  c  o  m
 *
 * @param camera The {@link Camera} to render the scene for.
 */
private void render(Camera camera) {

    this.camera = camera;

    int imageWidth = this.camera.getFilm().getXResolution();
    int imageHeight = this.camera.getFilm().getYResolution();

    LOGGER.info("{}", scene);

    if (sampler == null) {
        LOGGER.warn("No sampler set -> initializing default sampler: {}",
                SinglePointSampler.class.getSimpleName());
        sampler = new SinglePointSampler();
    }

    // TODO move this transformation into the camera
    Transformation rasterToCamera = Transformation.rasterToUnitSquare(imageWidth, imageHeight);

    Stopwatch overallTime = new Stopwatch();
    long cpuTime;

    if (useSingleTreadedRendering) {

        cpuTime = renderSingleThreaded(imageWidth, imageHeight, rasterToCamera, overallTime);

    } else {

        cpuTime = renderMultiThreaded(imageWidth, imageHeight, rasterToCamera, overallTime);

    }

    printRenderStatistics(overallTime.elapsedMillis(), cpuTime);

}

From source file:co.cask.cdap.examples.wordcount.RetrieveCountsHandler.java

/**
 * Returns the counts for all words in the input.  The request body is expected to contain
 * a comma-separated list of words./*from w ww . j  a  v a  2 s  . co m*/
 */
@Path("counts")
@POST
public void getCounts(HttpServiceRequest request, HttpServiceResponder responder) {
    String wordString = Charsets.UTF_8.decode(request.getContent()).toString();
    String[] words = wordString.split(",");
    Map<String, Long> wordCounts = Maps.newHashMap();
    Stopwatch timer = new Stopwatch().start();
    for (int i = 0; i < words.length; i++) {
        byte[] countBytes = wordCountsTable.read(Bytes.toBytes(words[i]));
        long count = countBytes != null ? Bytes.toLong(countBytes) : 0;
        wordCounts.put(words[i], count);
    }
    timer.stop();
    Map<String, Object> responseBody = Maps.newHashMap();
    responseBody.put("counts", wordCounts);
    responseBody.put("elapsed", timer.toString());
    responder.sendJson(responseBody);
}

From source file:org.n52.lod.csw.CSWLoDEnabler.java

/**
 * executes the program: 1.) retrieves the record descriptions from the CSW
 * 2.) transforms the descriptions to RDF 3.) inserts the produced RDF into
 * the triplestore/*from   w w w.ja va 2 s .  c  o m*/
 * 
 * @param startPos
 * 
 * @throws IOException
 */
public void runStartingFrom(int startPos) throws IOException {
    log.info("STARTING CSW to LOD..");

    if (!(addToServer || saveToFile)) {
        log.warn("Neither triple store nor file output are activated.");
        return;
    }

    final Stopwatch overallTimer = new Stopwatch();
    overallTimer.start();

    final Stopwatch retrievingTimer = new Stopwatch();
    final Stopwatch mappingTimer = new Stopwatch();
    final Stopwatch otherTimer = new Stopwatch();

    otherTimer.start();
    XmlToRdfMapper mapper = new GluesMapper(config);

    TripleSink serverSink = null;
    if (addToServer) {
        try {
            serverSink = new VirtuosoServer(config, mapper);
        } catch (RuntimeException e) {
            log.error("Could not connect to graph", e);
        }
    }

    TripleSink fileSink = null;
    if (saveToFile) {
        fileSink = new FileTripleSink(mapper);
    }

    long recordsInTotal = FALLBACK_RECORDS_TOTAL;
    try {
        recordsInTotal = csw.getNumberOfRecords();
        log.debug("Retrieved number of records from server: {}", recordsInTotal);
    } catch (IllegalStateException | HttpClientException | XmlException e) {
        log.error("Could not retrieve number of records from catalog {}, falling back to {}", csw,
                FALLBACK_RECORDS_TOTAL, e);
    }
    report.startIndex = startPos;
    report.recordNumber = recordsInTotal;
    otherTimer.stop();

    // main loop
    while (startPos < recordsInTotal) {
        retrievingTimer.start();
        Map<String, GetRecordByIdResponseDocument> records = retrieveRecords(startPos,
                NUMBER_OF_RECORDS_PER_ITERATION, recordsInTotal);
        retrievingTimer.stop();

        mappingTimer.start();
        if (addToServer && serverSink != null)
            serverSink.addRecords(records, report);
        if (saveToFile && fileSink != null)
            fileSink.addRecords(records, report);
        mappingTimer.stop();

        startPos = startPos + NUMBER_OF_RECORDS_PER_ITERATION;

        log.debug("Finished intermediate run at {}", overallTimer.toString());
    } // end of main loop

    otherTimer.start();
    if (fileSink != null)
        try {
            fileSink.close();
        } catch (Exception e) {
            log.error("Could not close file sink {}", fileSink, e);
        }

    if (serverSink != null)
        try {
            serverSink.close();
        } catch (Exception e) {
            log.error("Could not close server sink {}", serverSink, e);
        }

    if (!report.issues.isEmpty())
        log.error(report.extendedToString());

    overallTimer.stop();
    otherTimer.stop();

    log.info("DONE with CSW to LOD.. duration = {} (retrieving: {}, mapping = {}, other = {})", overallTimer,
            retrievingTimer, mappingTimer, otherTimer);
    log.info("Results: {}", report);
    log.info("Sinks: server = {}, file = {}", addToServer, saveToFile);
    log.info("Server: {} | File: {}", serverSink, fileSink);
}