Java Code Examples for java.util.concurrent.ConcurrentHashMap#keySet()
The following examples show how to use
java.util.concurrent.ConcurrentHashMap#keySet() .
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Example 1
Source File: ConcurrentHashMap8Test.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
/** * keySet.add adds the key with the established value to the map; * remove removes it. */ public void testKeySetAddRemove() { ConcurrentHashMap map = map5(); Set set1 = map.keySet(); Set set2 = map.keySet(true); set2.add(six); assertTrue(((ConcurrentHashMap.KeySetView)set2).getMap() == map); assertTrue(((ConcurrentHashMap.KeySetView)set1).getMap() == map); assertEquals(set2.size(), map.size()); assertEquals(set1.size(), map.size()); assertTrue((Boolean)map.get(six)); assertTrue(set1.contains(six)); assertTrue(set2.contains(six)); set2.remove(six); assertNull(map.get(six)); assertFalse(set1.contains(six)); assertFalse(set2.contains(six)); }
Example 2
Source File: MonitorConsoleResource.java From dyno with Apache License 2.0 | 6 votes |
@SuppressWarnings("unchecked") @Path("/topology/{cpName}") @GET @Consumes(MediaType.TEXT_PLAIN) @Produces(MediaType.APPLICATION_JSON) public String getConnectionPoolToplogy(@PathParam("cpName") String cpName) { TokenPoolTopology topology = MonitorConsole.getInstance().getTopology(cpName); if (topology == null) { return "Not Found: " + cpName; } ConcurrentHashMap<String, List<TokenStatus>> map = topology.getAllTokens(); JSONObject json = new JSONObject(); for (String rack : map.keySet()) { List<TokenStatus> tokens = map.get(rack); json.put(rack, getTokenStatusMap(tokens)); } return json.toJSONString(); }
Example 3
Source File: DefaultMQPullConsumerImpl.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0 | 6 votes |
public Set<MessageQueue> fetchMessageQueuesInBalance(String topic) throws MQClientException { this.makeSureStateOK(); if (null == topic) { throw new IllegalArgumentException("topic is null"); } ConcurrentHashMap<MessageQueue, ProcessQueue> mqTable = this.rebalanceImpl.getProcessQueueTable(); Set<MessageQueue> mqResult = new HashSet<MessageQueue>(); for (MessageQueue mq : mqTable.keySet()) { if (mq.getTopic().equals(topic)) { mqResult.add(mq); } } return mqResult; }
Example 4
Source File: SPCookieStore.java From DoraemonKit with Apache License 2.0 | 6 votes |
@Override public synchronized boolean removeCookie(HttpUrl url) { if (!cookies.containsKey(url.host())) return false; //内存移除 ConcurrentHashMap<String, Cookie> urlCookie = cookies.remove(url.host()); //文件移除 Set<String> cookieTokens = urlCookie.keySet(); SharedPreferences.Editor prefsWriter = cookiePrefs.edit(); for (String cookieToken : cookieTokens) { if (cookiePrefs.contains(COOKIE_NAME_PREFIX + cookieToken)) { prefsWriter.remove(COOKIE_NAME_PREFIX + cookieToken); } } prefsWriter.remove(url.host()); prefsWriter.apply(); return true; }
Example 5
Source File: DefaultMQPullConsumerImpl.java From rocketmq_trans_message with Apache License 2.0 | 6 votes |
public Set<MessageQueue> fetchMessageQueuesInBalance(String topic) throws MQClientException { this.makeSureStateOK(); if (null == topic) { throw new IllegalArgumentException("topic is null"); } ConcurrentHashMap<MessageQueue, ProcessQueue> mqTable = this.rebalanceImpl.getProcessQueueTable(); Set<MessageQueue> mqResult = new HashSet<MessageQueue>(); for (MessageQueue mq : mqTable.keySet()) { if (mq.getTopic().equals(topic)) { mqResult.add(mq); } } return mqResult; }
Example 6
Source File: ConcurrentHashMap8Test.java From j2objc with Apache License 2.0 | 6 votes |
/** * KeySetView.getMappedValue returns the map's mapped value */ public void testGetMappedValue() { ConcurrentHashMap map = map5(); assertNull(((ConcurrentHashMap.KeySetView) map.keySet()).getMappedValue()); try { map.keySet(null); shouldThrow(); } catch (NullPointerException success) {} ConcurrentHashMap.KeySetView set = map.keySet(one); assertFalse(set.add(one)); assertTrue(set.add(six)); assertTrue(set.add(seven)); assertTrue(set.getMappedValue() == one); assertTrue(map.get(one) != one); assertTrue(map.get(six) == one); assertTrue(map.get(seven) == one); }
Example 7
Source File: EditDataSet.java From chart-fx with Apache License 2.0 | 5 votes |
protected void deleteAllMarkedPoints() { for (final EditableDataSet dataSet : markedPoints.keySet()) { final ConcurrentHashMap<Integer, SelectedDataPoint> dataPoints = markedPoints.get(dataSet); for (final Integer dataPointIndex : dataPoints.keySet()) { final SelectedDataPoint dataPoint = dataPoints.get(dataPointIndex); if (dataPoint.delete()) { dataPoints.remove(dataPointIndex); } } } updateMarker(); }
Example 8
Source File: ConcurrentHashMapTest.java From j2objc with Apache License 2.0 | 5 votes |
/** * keySet returns a Set containing all the keys */ public void testKeySet() { ConcurrentHashMap map = map5(); Set s = map.keySet(); assertEquals(5, s.size()); assertTrue(s.contains(one)); assertTrue(s.contains(two)); assertTrue(s.contains(three)); assertTrue(s.contains(four)); assertTrue(s.contains(five)); }
Example 9
Source File: GosScheduleSiteTool.java From Gizwits-SmartBuld_Android with MIT License | 5 votes |
/** * Description:向云端创建定时任务 * * @param date * 执行日期,格式为:"2015-01-01"。 * @param time * 执行时间,格式为:"10:10", 注意:该时间为 UTC 时间! * @param repeat * 重复类型通过 repeat * 参数进行设置,不重复设置为"none",默认执行日期为当天,并且执行时间不能早于当前时间;重复设置为 "mon", * "tue", "wed", "thu", "fri", "sat", "sun" * 的组合,组合之间用逗号分隔,如每周一和周二重复为 "mon,tue"。 * @param attrs * 定时任务中需要更改的数据点及值,格式为"attr1": val; * @param succeed * 创建成功回调函数 * @param failed * 创建失败回调函数 */ public void setCommadOnSite(String date, String time, String repeat, ConcurrentHashMap<String, Object> attrs, OnResponListener respon) { String httpurl = "http://api.gizwits.com/app/scheduler"; JSONObject jsonsend = new JSONObject(); try { JSONObject jsonCammad = new JSONObject(); for (String key : attrs.keySet()) { jsonCammad.put(key, attrs.get(key)); } JSONObject task = new JSONObject(); task.put("did", device.getDid()); task.put("product_key", device.getProductKey()); task.put("attrs", jsonCammad); JSONArray jsonArray = new JSONArray(); jsonArray.put(task); jsonsend.put("date", date); jsonsend.put("time", time); jsonsend.put("repeat", repeat); jsonsend.put("task", jsonArray); jsonsend.put("retry_count", 3); jsonsend.put("retry_task", "failed"); Log.i("onSite", jsonsend.toString()); } catch (JSONException e) { e.printStackTrace(); } sendDateToSite(httpurl, jsonsend, respon); }
Example 10
Source File: MetaFileUtilTest.java From vxquery with Apache License 2.0 | 5 votes |
/** * Validate the content of the file. */ @Test public void step3_testValidateMetadataFile() { ConcurrentHashMap<String, XmlMetadata> fromFile = metaFileUtil.getMetadata(); Set<String> from = fromFile.keySet(); Set<String> initial = initialMap.keySet(); Assert.assertTrue(from.containsAll(initial)); for (String key : initial) { Assert.assertEquals(TestConstants.getXMLMetadataString(initialMap.get(key)), TestConstants.getXMLMetadataString(fromFile.get(key))); } }
Example 11
Source File: IntegrationTestDDLMasterFailover.java From hbase with Apache License 2.0 | 5 votes |
protected TableDescriptor selectTable(ConcurrentHashMap<TableName, TableDescriptor> tableMap) { // synchronization to prevent removal from multiple threads synchronized (tableMap){ // randomly select table from tableMap if (tableMap.isEmpty()) { return null; } ArrayList<TableName> tableList = new ArrayList<>(tableMap.keySet()); TableName randomKey = tableList.get(RandomUtils.nextInt(0, tableList.size())); TableDescriptor randomTd = tableMap.remove(randomKey); return randomTd; } }
Example 12
Source File: MetaFileUtilTest.java From vxquery with Apache License 2.0 | 5 votes |
/** * Validate the updated metadata. */ @Test public void step6_testVerifyMetadataChange() { ConcurrentHashMap<String, XmlMetadata> fromFile = metaFileUtil.getMetadata(); Set<String> from = fromFile.keySet(); Set<String> modified = modifiedMap.keySet(); Assert.assertTrue(from.containsAll(modified)); for (String key : modified) { Assert.assertEquals(TestConstants.getXMLMetadataString(modifiedMap.get(key)), TestConstants.getXMLMetadataString(fromFile.get(key))); } }
Example 13
Source File: GosDeviceControlActivity.java From gokit-android with MIT License | 5 votes |
private void toastFaultsOrAlertsMessage(Message msg) { StringBuilder sb = new StringBuilder(); ConcurrentHashMap<String, Object> map = (ConcurrentHashMap<String, Object>) msg.obj; for (String key : map.keySet()) { if ((Boolean) map.get(key)) { sb.append(key + "1" + "\r\n"); } } if (sb.length() != 0) { Toast.makeText(GosDeviceControlActivity.this, sb.toString(), Toast.LENGTH_SHORT).show(); } }
Example 14
Source File: EditDataSet.java From chart-fx with Apache License 2.0 | 5 votes |
protected void updateMarker() { this.markerPane.getChildren().clear(); markerPane.getParent().setMouseTransparent(false); for (final EditableDataSet dataSet : markedPoints.keySet()) { final ConcurrentHashMap<Integer, SelectedDataPoint> dataPoints = markedPoints.get(dataSet); if (dataPoints == null) { // workaround... key shouldn't be here in the first place continue; } for (final Integer dataPointIndex : dataPoints.keySet()) { final SelectedDataPoint dataPoint = dataPoints.get(dataPointIndex); // dataPoint.setOnMouseClicked(evt -> { // if (evt.isSecondaryButtonDown()) { // // right clicked on circle // } // }); dataPoint.update(); markerPane.getChildren().add(dataPoint); } } if (markerPane.getChildren().isEmpty()) { markerPane.getParent().setMouseTransparent(true); } }
Example 15
Source File: ConcurrentHashMapTest.java From j2objc with Apache License 2.0 | 5 votes |
/** * keySet.toArray returns contains all keys */ public void testKeySetToArray() { ConcurrentHashMap map = map5(); Set s = map.keySet(); Object[] ar = s.toArray(); assertTrue(s.containsAll(Arrays.asList(ar))); assertEquals(5, ar.length); ar[0] = m10; assertFalse(s.containsAll(Arrays.asList(ar))); }
Example 16
Source File: RecommendUtils.java From product-recommendation-system with MIT License | 4 votes |
/** * 计算用户与用户之间的相似性,返回计算出的用户与用户之间的相似度对象 * @param activeMap 用户对各个二级类目的购买行为的一个map集合 * @return 计算出的用户与用户之间的相似度的对象存储形式 */ public static List<UserSimilarityDTO> calcSimilarityBetweenUsers(ConcurrentHashMap<Long, ConcurrentHashMap<Long, Long>> activeMap) { // 用户之间的相似度对集合 List<UserSimilarityDTO> similarityList = new ArrayList<UserSimilarityDTO>(); // 获取所有的键的集合 Set<Long> userSet = activeMap.keySet(); // 把这些集合放入ArrayList中 List<Long> userIdList = new ArrayList<Long>(userSet); // 小于两个说明当前map集合中只有一个map集合的购买行为,或者一个都没有,直接返回 if (userIdList.size() < 2) { return similarityList; } // 计算所有的用户之间的相似度对 for (int i = 0; i < userIdList.size() - 1; i++) { for (int j = i + 1; j < userIdList.size(); j++) { // 分别获取两个用户对每个二级类目的点击量 ConcurrentHashMap<Long, Long> userCategory2Map = activeMap.get(userIdList.get(i)); ConcurrentHashMap<Long, Long> userRefCategory2Map = activeMap.get(userIdList.get(j)); // 获取两个map中二级类目id的集合 Set<Long> key1Set = userCategory2Map.keySet(); Set<Long> key2Set = userRefCategory2Map.keySet(); Iterator<Long> it1 = key1Set.iterator(); Iterator<Long> it2 = key2Set.iterator(); // 两用户之间的相似度 double similarity = 0.0; // 余弦相似度公式中的分子 double molecule = 0.0; // 余弦相似度公式中的分母 double denominator = 1.0; // 余弦相似度公式中分母根号下的两个向量的模的值 double vector1 = 0.0; double vector2 = 0.0; while (it1.hasNext() && it2.hasNext()) { Long it1Id = it1.next(); Long it2Id = it2.next(); // 获取二级类目对应的点击次数 Long hits1 = userCategory2Map.get(it1Id); Long hits2 = userRefCategory2Map.get(it2Id); // 累加分子 molecule += hits1 * hits2; // 累加分母中的两个向量的模 vector1 += Math.pow(hits1, 2); vector2 += Math.pow(hits2, 2); } // 计算分母 denominator = Math.sqrt(vector1) * Math.sqrt(vector2); // 计算整体相似度 similarity = molecule / denominator; // 创建用户相似度对对象 UserSimilarityDTO userSimilarityDTO = new UserSimilarityDTO(); userSimilarityDTO.setUserId(userIdList.get(i)); userSimilarityDTO.setUserRefId(userIdList.get(j)); userSimilarityDTO.setSimilarity(similarity); // 将计算出的用户以及用户之间的相似度对象存入list集合 similarityList.add(userSimilarityDTO); } } return similarityList; }
Example 17
Source File: LocalCryptoMaterialsCacheThreadStormTest.java From aws-encryption-sdk-java with Apache License 2.0 | 4 votes |
public void decryptCheckThread() { try { while (stopRequest.getCount() > 0) { maybeBarrier(); byte[] ref = new byte[3]; ThreadLocalRandom.current().nextBytes(ref); ref[0] = 0; ConcurrentHashMap<CacheTestFixtures.SentinelKey, Object> expectedDecryptMap = possibleDecrypts.computeIfAbsent(ByteBuffer.wrap(ref), ignored -> new ConcurrentHashMap<>()); synchronized (expectedDecryptMap) { CryptoMaterialsCache.DecryptCacheEntry result = cache.getEntryForDecrypt(ref); CacheTestFixtures.SentinelKey cachedKey = null; if (result != null) { inc("decrypt: hit"); cachedKey = (CacheTestFixtures.SentinelKey) result.getResult().getDataKey().getKey(); if (expectedDecryptMap.containsKey(cachedKey)) { inc("decrypt: found key in expected"); } else { fail("decrypt: unexpected key"); } } else { inc("decrypt: miss"); } for (CacheTestFixtures.SentinelKey expectedKey : expectedDecryptMap.keySet()) { if (cachedKey != expectedKey) { inc("decrypt: prune"); expectedDecryptMap.remove(expectedKey); } } } } } catch (Exception e) { throw new RuntimeException(e); } }
Example 18
Source File: RateLimitExecutorServiceTest.java From google-maps-services-java with Apache License 2.0 | 4 votes |
@Test public void testRateLimitDoesNotExceedSuppliedQps() throws Exception { int qps = 10; RateLimitExecutorService service = new RateLimitExecutorService(); service.setQueriesPerSecond(qps); final ConcurrentHashMap<Integer, Integer> executedTimestamps = new ConcurrentHashMap<>(); for (int i = 0; i < 100; i++) { Runnable emptyTask = new Runnable() { @Override public void run() { int nearestSecond = (int) (new Date().getTime() / 1000); if (executedTimestamps.containsKey(nearestSecond)) { executedTimestamps.put(nearestSecond, executedTimestamps.get(nearestSecond) + 1); } else { executedTimestamps.put(nearestSecond, 1); } } }; service.execute(emptyTask); } // Sleep until finished, or 20s expires (to prevent waiting forever) long sleepTime = 0; while (sleepTime < 20000 && countTotalRequests(executedTimestamps) < 100) { long sleepFor = TimeUnit.SECONDS.toMillis(1); sleepTime += sleepFor; Thread.sleep(sleepFor); } // Check that we executed at the correct rate for (Integer timestamp : executedTimestamps.keySet()) { Integer actualQps = executedTimestamps.get(timestamp); // Logging QPS here to detect if a previous iteration had qps-1 and this is qps+1. LOG.info( String.format( "Timestamp(%d) logged %d queries (target of %d qps)", timestamp, actualQps, qps)); assertTrue( String.format("Expected <= %d queries in a second, got %d.", qps, actualQps), actualQps <= qps); } // Check that we executed every request assertEquals(100, countTotalRequests(executedTimestamps)); service.shutdown(); }
Example 19
Source File: TrackerStats.java From SearchServices with GNU Lesser General Public License v3.0 | 4 votes |
/** * @param all ConcurrentHashMap<String, IncrementalStats> * @return SimpleStats */ private SimpleStats aggregateResults(ConcurrentHashMap<String, IncrementalStats> all) { SimpleStats answer = null; for (String key : all.keySet()) { IncrementalStats next = all.get(key); IncrementalStats stats = next.copy(); if (answer == null) { answer = new SimpleStats(stats.scale, this.infoSrv); answer .start = stats.start; answer.moments[0] = stats.moments[0]; answer.moments[1] = stats.moments[1]; answer.moments[2] = stats.moments[2]; answer.max = stats.max; answer.min = stats.min; answer.copies.put(key, stats); } else { SimpleStats newAnswer = new SimpleStats(answer.scale, this.infoSrv); newAnswer.moments[0] = answer.moments[0] + stats.moments[0]; newAnswer.moments[1] = answer.moments[1] * answer.moments[0] + stats.moments[1] * stats.moments[0]; newAnswer.moments[1] /= answer.moments[0] + stats.moments[0]; newAnswer.moments[2] = answer.moments[2] * answer.moments[0]; newAnswer.moments[2] += (answer.moments[1] - newAnswer.moments[1]) * (answer.moments[1] - newAnswer.moments[1]) * answer.moments[0]; newAnswer.moments[2] += stats.moments[2] * stats.moments[0]; newAnswer.moments[2] += (stats.moments[1] - newAnswer.moments[1]) * (stats.moments[1] - newAnswer.moments[1]) * stats.moments[0]; newAnswer.moments[2] /= answer.moments[0] + stats.moments[0]; newAnswer.min = (stats.min < answer.min) ? stats.min : answer.min; newAnswer.max = (stats.max > answer.max) ? stats.max : answer.max; newAnswer.start = (stats.start.compareTo(answer.start) < 1) ? stats.start : answer.start; newAnswer.copies.putAll(answer.copies); newAnswer.copies.put(key, stats); answer = newAnswer; } } if (answer == null) { answer = new SimpleStats(1, this.infoSrv); } return answer; }
Example 20
Source File: Broker2Client.java From RocketMQ-Master-analyze with Apache License 2.0 | 4 votes |
/** * Broker 主动通知 Consumer,offset 需要进行重置列表发生变化 */ public RemotingCommand resetOffset(String topic, String group, long timeStamp, boolean isForce) { final RemotingCommand response = RemotingCommand.createResponseCommand(null); TopicConfig topicConfig = this.brokerController.getTopicConfigManager().selectTopicConfig(topic); if (null == topicConfig) { log.error("[reset-offset] reset offset failed, no topic in this broker. topic={}", topic); response.setCode(ResponseCode.SYSTEM_ERROR); response.setRemark("[reset-offset] reset offset failed, no topic in this broker. topic=" + topic); return response; } Map<MessageQueue, Long> offsetTable = new HashMap<MessageQueue, Long>(); for (int i = 0; i < topicConfig.getWriteQueueNums(); i++) { MessageQueue mq = new MessageQueue(); mq.setBrokerName(this.brokerController.getBrokerConfig().getBrokerName()); mq.setTopic(topic); mq.setQueueId(i); long consumerOffset = this.brokerController.getConsumerOffsetManager().queryOffset(group, topic, i); if (-1 == consumerOffset) { response.setCode(ResponseCode.SYSTEM_ERROR); response.setRemark(String.format("THe consumer group <%s> not exist", group)); return response; } long timeStampOffset = this.brokerController.getMessageStore().getOffsetInQueueByTime(topic, i, timeStamp); if (isForce || timeStampOffset < consumerOffset) { offsetTable.put(mq, timeStampOffset); } else { offsetTable.put(mq, consumerOffset); } } ResetOffsetRequestHeader requestHeader = new ResetOffsetRequestHeader(); requestHeader.setTopic(topic); requestHeader.setGroup(group); requestHeader.setTimestamp(timeStamp); RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.RESET_CONSUMER_CLIENT_OFFSET, requestHeader); ResetOffsetBody body = new ResetOffsetBody(); body.setOffsetTable(offsetTable); request.setBody(body.encode()); ConsumerGroupInfo consumerGroupInfo = this.brokerController.getConsumerManager().getConsumerGroupInfo(group); // Consumer在线 if (consumerGroupInfo != null && !consumerGroupInfo.getAllChannel().isEmpty()) { ConcurrentHashMap<Channel, ClientChannelInfo> channelInfoTable = consumerGroupInfo.getChannelInfoTable(); for (Channel channel : channelInfoTable.keySet()) { int version = channelInfoTable.get(channel).getVersion(); if (version >= MQVersion.Version.V3_0_7_SNAPSHOT.ordinal()) { try { this.brokerController.getRemotingServer().invokeOneway(channel, request, 5000); log.info("[reset-offset] reset offset success. topic={}, group={}, clientId={}", new Object[] { topic, group, channelInfoTable.get(channel).getClientId() }); } catch (Exception e) { log.error("[reset-offset] reset offset exception. topic={}, group={}", new Object[] { topic, group }, e); } } else { // 如果有一个客户端是不支持该功能的,则直接返回错误,需要应用方升级。 response.setCode(ResponseCode.SYSTEM_ERROR); response.setRemark("the client does not support this feature. version=" + MQVersion.getVersionDesc(version)); log.warn("[reset-offset] the client does not support this feature. version={}", RemotingHelper.parseChannelRemoteAddr(channel), MQVersion.getVersionDesc(version)); return response; } } } // Consumer不在线 else { String errorInfo = String.format( "Consumer not online, so can not reset offset, Group: %s Topic: %s Timestamp: %d", // requestHeader.getGroup(), // requestHeader.getTopic(), // requestHeader.getTimestamp()); log.error(errorInfo); response.setCode(ResponseCode.CONSUMER_NOT_ONLINE); response.setRemark(errorInfo); return response; } response.setCode(ResponseCode.SUCCESS); ResetOffsetBody resBody = new ResetOffsetBody(); resBody.setOffsetTable(offsetTable); response.setBody(resBody.encode()); return response; }