Package org.apache.commons.lang.mutable

Examples of org.apache.commons.lang.mutable.MutableInt

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    private Histogram processingTimeMsHistogram;

    private CommBufferSizeStats serverCommBufferStats;

    public NioSelectorManagerStats() {
        this.numActiveConnections = new MutableInt(0);
        this.serverCommBufferStats = new CommBufferSizeStats();

        // Theoretically, the delay can be only upto SELECTOR_POLL_MS.
        // But sometimes wallclock time can be higher
        this.selectTimeMsHistogram = new Histogram(SelectorManager.SELECTOR_POLL_MS * 2,
 
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        xpath.addNamespace("m1", "http://services.samples/xsd2");
        return xpath;
    }

    private void test(ValidateMediator validate, MessageContext synCtx, boolean expectFail) {
        final MutableInt onFailInvoked = new MutableInt();
        TestMediator testMediator = new TestMediator();
        testMediator.setHandler(
                new TestMediateHandler() {
                    public void handle(MessageContext synCtx) {
                        onFailInvoked.setValue(1);
                    }
                });
        // set dummy mediator to be called on fail
        validate.addChild(testMediator);
        validate.mediate(synCtx);
        if (expectFail) {
            assertTrue("Expected ValidateMediator to trigger fail sequence",
                    onFailInvoked.intValue() == 1);
        } else {
            assertTrue("ValidateMediator unexpectedly triggered fail sequence",
                    onFailInvoked.intValue() == 0);
        }
    }
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        xpath.addNamespace("m1", "http://services.samples/xsd2");
        return xpath;
    }

    private void test(ValidateMediator validate, MessageContext synCtx, boolean expectFail) {
        final MutableInt onFailInvoked = new MutableInt();
        TestMediator testMediator = new TestMediator();
        testMediator.setHandler(
                new TestMediateHandler() {
                    public void handle(MessageContext synCtx) {
                        onFailInvoked.setValue(1);
                    }
                });
        // set dummy mediator to be called on fail
        validate.addChild(testMediator);
        validate.mediate(synCtx);
        if (expectFail) {
            assertTrue("Expected ValidateMediator to trigger fail sequence",
                    onFailInvoked.intValue() == 1);
        } else {
            assertTrue("ValidateMediator unexpectedly triggered fail sequence",
                    onFailInvoked.intValue() == 0);
        }
    }
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    for (Entry<ByteBuffer,
        ? extends Collection<LoadQueueItem>> e: regionGroups.asMap().entrySet()) {
      final Collection<LoadQueueItem> lqis =  e.getValue();
      HashMap<byte[], MutableInt> filesMap = new HashMap<byte[], MutableInt>();
      for (LoadQueueItem lqi: lqis) {
        MutableInt count = filesMap.get(lqi.family);
        if (count == null) {
          count = new MutableInt();
          filesMap.put(lqi.family, count);
        }
        count.increment();
        if (count.intValue() > maxFilesPerRegionPerFamily) {
          LOG.error("Trying to load more than " + maxFilesPerRegionPerFamily
            + " hfiles to family " + Bytes.toStringBinary(lqi.family)
            + " of region with start key "
            + Bytes.toStringBinary(e.getKey()));
          return false;
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/** <p>Tests {@link CachingRecommender}.</p> */
public final class CachingRecommenderTest extends TasteTestCase {

  @Test
  public void testRecommender() throws Exception {
    MutableInt recommendCount = new MutableInt();
    Recommender mockRecommender = new MockRecommender(recommendCount);

    Recommender cachingRecommender = new CachingRecommender(mockRecommender);
    cachingRecommender.recommend(1, 1);
    assertEquals(1, recommendCount.intValue());
    cachingRecommender.recommend(2, 1);
    assertEquals(2, recommendCount.intValue());
    cachingRecommender.recommend(1, 1);
    assertEquals(2, recommendCount.intValue());
    cachingRecommender.recommend(2, 1);
    assertEquals(2, recommendCount.intValue());
    cachingRecommender.refresh(null);
    cachingRecommender.recommend(1, 1);
    assertEquals(3, recommendCount.intValue());
    cachingRecommender.recommend(2, 1);
    assertEquals(4, recommendCount.intValue());
    cachingRecommender.recommend(3, 1);
    assertEquals(5, recommendCount.intValue());

    // Results from this recommend() method can be cached...
    IDRescorer rescorer = NullRescorer.getItemInstance();
    cachingRecommender.refresh(null);
    cachingRecommender.recommend(1, 1, rescorer);
    assertEquals(6, recommendCount.intValue());
    cachingRecommender.recommend(2, 1, rescorer);
    assertEquals(7, recommendCount.intValue());
    cachingRecommender.recommend(1, 1, rescorer);
    assertEquals(7, recommendCount.intValue());
    cachingRecommender.recommend(2, 1, rescorer);
    assertEquals(7, recommendCount.intValue());

    // until you switch Rescorers
    cachingRecommender.recommend(1, 1, null);
    assertEquals(8, recommendCount.intValue());
    cachingRecommender.recommend(2, 1, null);
    assertEquals(9, recommendCount.intValue());

    cachingRecommender.refresh(null);
    cachingRecommender.estimatePreference(1, 1);
    assertEquals(10, recommendCount.intValue());
    cachingRecommender.estimatePreference(1, 2);
    assertEquals(11, recommendCount.intValue());
    cachingRecommender.estimatePreference(1, 2);
    assertEquals(11, recommendCount.intValue());
  }
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   * Submit a log split task to executor service
   * @param curTask
   * @param curTaskZKVersion
   */
  void submitTask(final String curTask, final int curTaskZKVersion, final int reportPeriod) {
    final MutableInt zkVersion = new MutableInt(curTaskZKVersion);

    CancelableProgressable reporter = new CancelableProgressable() {
      private long last_report_at = 0;

      @Override
      public boolean progress() {
        long t = EnvironmentEdgeManager.currentTimeMillis();
        if ((t - last_report_at) > reportPeriod) {
          last_report_at = t;
          int latestZKVersion =
              attemptToOwnTask(false, watcher, serverName, curTask, zkVersion.intValue());
          if (latestZKVersion < 0) {
            LOG.warn("Failed to heartbeat the task" + curTask);
            return false;
          }
          zkVersion.setValue(latestZKVersion);
        }
        return true;
      }
    };
   
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    for (Entry<ByteBuffer,
        ? extends Collection<LoadQueueItem>> e: regionGroups.asMap().entrySet()) {
      final Collection<LoadQueueItem> lqis =  e.getValue();
      HashMap<byte[], MutableInt> filesMap = new HashMap<byte[], MutableInt>();
      for (LoadQueueItem lqi: lqis) {
        MutableInt count = filesMap.get(lqi.family);
        if (count == null) {
          count = new MutableInt();
          filesMap.put(lqi.family, count);
        }
        count.increment();
        if (count.intValue() > maxFilesPerRegionPerFamily) {
          LOG.error("Trying to load more than " + maxFilesPerRegionPerFamily
            + " hfiles to family " + Bytes.toStringBinary(lqi.family)
            + " of region with start key "
            + Bytes.toStringBinary(e.getKey()));
          return false;
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    for (Entry<ByteBuffer,
        ? extends Collection<LoadQueueItem>> e: regionGroups.asMap().entrySet()) {
      final Collection<LoadQueueItem> lqis =  e.getValue();
      HashMap<byte[], MutableInt> filesMap = new HashMap<byte[], MutableInt>();
      for (LoadQueueItem lqi: lqis) {
        MutableInt count = filesMap.get(lqi.family);
        if (count == null) {
          count = new MutableInt();
          filesMap.put(lqi.family, count);
        }
        count.increment();
        if (count.intValue() > maxFilesPerRegionPerFamily) {
          LOG.error("Trying to load more than " + maxFilesPerRegionPerFamily
            + " hfiles to family " + Bytes.toStringBinary(lqi.family)
            + " of region with start key "
            + Bytes.toStringBinary(e.getKey()));
          return false;
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      // For all of the regions count how many are from each table
      for (HRegionInfo region : entry.getValue()) {
        String tableName = region.getTableNameAsString();

        // See if this table already has a count on this server
        MutableInt regionsOnServerCount = tableRegionsOnCurrentServer.get(tableName);

        // If this is the first time we've seen this table on this server
        // create a new mutable int.
        if (regionsOnServerCount == null) {
          regionsOnServerCount = new MutableInt(0);
          tableRegionsOnCurrentServer.put(tableName, regionsOnServerCount);
        }

        // Increment the count of how many regions from this table are host on
        // this server
        regionsOnServerCount.increment();

        // Now count the number of regions in this table.
        MutableInt totalCount = tableRegionsTotal.get(tableName);

        // If this is the first region from this table create a new counter for
        // this table.
        if (totalCount == null) {
          totalCount = new MutableInt(0);
          tableRegionsTotal.put(tableName, totalCount);
        }
        totalCount.increment();
      }

      // Now go through all of the tables we have seen and keep the max number
      // of regions of this table a single region server is hosting.
      for (Entry<String, MutableInt> currentServerEntry: tableRegionsOnCurrentServer.entrySet()) {
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      if (ZKSplitLog.isRescanNode(watcher, currentTask)) {
        ZkSplitLogWorkerCoordination.ZkSplitTaskDetails splitTaskDetails =
            new ZkSplitLogWorkerCoordination.ZkSplitTaskDetails();
        splitTaskDetails.setTaskNode(currentTask);
        splitTaskDetails.setCurTaskZKVersion(new MutableInt(currentVersion));

        endTask(new SplitLogTask.Done(server.getServerName(), slt.getMode()),
          SplitLogCounters.tot_wkr_task_acquired_rescan, splitTaskDetails);
        return;
      }
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