Example usage for java.util.concurrent ConcurrentHashMap get

Introduction

In this page you can find the example usage for java.util.concurrent ConcurrentHashMap get.

Prototype

public V get(Object key)

Source Link

Document

Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.

Usage

From source file:com.doctor.other.concurrent_hash_map_based_table.ConcurrentHashMapBasedTable.java

public Long getSumForRowColumnKey(final String rowKey, final String columnKey) {
    if (StringUtils.isBlank(rowKey) || StringUtils.isBlank(columnKey)) {
        return Long.valueOf(0L);
    }/*  w w  w . jav a  2 s  .  com*/

    ConcurrentHashMap<String, ConcurrentSkipListMap<String, ConcurrentSet<T>>> row = table.get(rowKey);
    if (row == null) {
        return Long.valueOf(0L);
    }

    ConcurrentSkipListMap<String, ConcurrentSet<T>> column = row.get(columnKey);
    if (column == null) {
        return Long.valueOf(0L);
    }

    return column.values().parallelStream().mapToLong(k -> k.size()).sum();
}

From source file:com.doctor.other.concurrent_hash_map_based_table.ConcurrentHashMapBasedTable.java

private void pruneCache() {
    String expireTime = LocalDateTime.now().minusHours(ttl).format(Util.timeFormatter);
    log.info("{expireTime:{}}", expireTime);

    for (String rowKey : table.keySet()) {
        ConcurrentHashMap<String, ConcurrentSkipListMap<String, ConcurrentSet<T>>> rowMap = table.get(rowKey);
        for (String columnKey : rowMap.keySet()) {
            ConcurrentSkipListMap<String, ConcurrentSet<T>> columnMap = rowMap.get(columnKey);

            Iterator<String> iterator = columnMap.keySet().iterator();
            while (iterator.hasNext()) {
                String timesplices = iterator.next();
                if (timesplices.compareTo(expireTime) < 0) {
                    columnMap.get(timesplices).clear();
                    iterator.remove();//w ww. j  a  v  a  2 s . c o  m
                } else {
                    break;
                }
            }
        }
    }

}

From source file:com.doctor.other.concurrent_hash_map_based_table.ConcurrentHashMapBasedTable.java

public List<T> get(final String rowKey, final String columnKey, final String timesplice) {
    Preconditions.checkState(StringUtils.isNotBlank(rowKey), "rowKey is blank");
    Preconditions.checkState(StringUtils.isNotBlank(columnKey), "columnKey is blank");
    Preconditions.checkState(StringUtils.isNotBlank(timesplice), "timesplice is blank");

    ConcurrentHashMap<String, ConcurrentSkipListMap<String, ConcurrentSet<T>>> row = table.get(rowKey);
    if (row == null) {
        return Arrays.asList();
    }/* www  .  j  a va2  s .com*/

    ConcurrentSkipListMap<String, ConcurrentSet<T>> column = row.get(columnKey);
    if (column == null) {
        return Arrays.asList();
    }

    ConcurrentSet<T> values = column.get(timesplice);

    if (values == null) {
        return Arrays.asList();
    }

    return values.stream().collect(Collectors.toList());
}

From source file:com.taobao.diamond.server.service.GroupService.java

/**
 * ip/*from w  ww.j a va2  s.  com*/
 * 
 * @param address
 * @param dataId
 * @param clientGroup
 *            
 * @return
 */
public String getGroupByAddress(String address, String dataId, String clientGroup) {
    ConcurrentHashMap<String, GroupInfo> dataIdGroupMap = addressGroupCache.get(address);
    if (dataIdGroupMap != null) {
        GroupInfo groupInfo = dataIdGroupMap.get(dataId);
        if (groupInfo != null) {
            return groupInfo.getGroup();
        } else {
            return defaultGroupOrClientGroup(clientGroup);
        }
    } else {
        return defaultGroupOrClientGroup(clientGroup);
    }

    // 
    /*
     * ConcurrentHashMap<String, GroupInfo> dataIdGroupMap =
     * addressGroupCache.get(address); if (dataIdGroupMap != null) {
     * GroupInfo groupInfo = dataIdGroupMap.get(dataId); if (groupInfo !=
     * null) { return groupInfo.getGroup(); } else { return
     * wildCardGroup(address, dataId, clientGroup); } } else { // , 
     * return wildCardGroup(address, dataId, clientGroup); }
     */
}

From source file:com.taobao.diamond.server.service.GroupService.java

@SuppressWarnings("unused")
private String wildCardGroup(String address, String dataId, String clientGroup) {
    for (String key : addressGroupCache.keySet()) {
        if (key.endsWith(WILDCARD_CHAR)) {
            String keyPrefix = key.substring(0, key.indexOf(WILDCARD_CHAR));
            if (address.startsWith(keyPrefix)) {
                ConcurrentHashMap<String, GroupInfo> dataIdGroupMap = addressGroupCache.get(key);
                if (dataIdGroupMap != null) {
                    GroupInfo groupInfo = dataIdGroupMap.get(dataId);
                    if (groupInfo != null) {
                        return groupInfo.getGroup();
                    }/*from ww  w . ja va 2  s.  co  m*/
                }
            }
        }
    }

    return defaultGroupOrClientGroup(clientGroup);
}

From source file:org.wso2.carbon.event.input.adaptor.file.FileEventAdaptorType.java

@Override
public void unsubscribe(InputEventAdaptorMessageConfiguration inputEventAdaptorMessageConfiguration,
        InputEventAdaptorConfiguration inputEventAdaptorConfiguration, AxisConfiguration axisConfiguration,
        String subscriptionId) {//from   w  w  w. jav  a  2 s . c o  m
    ConcurrentHashMap<String, FileTailerManager> tailerManagerConcurrentHashMap = tailerMap
            .get(inputEventAdaptorConfiguration.getName());
    FileTailerManager fileTailerManager = null;
    if (tailerManagerConcurrentHashMap != null) {
        fileTailerManager = tailerManagerConcurrentHashMap.get(inputEventAdaptorMessageConfiguration
                .getInputMessageProperties().get(FileEventAdaptorConstants.EVENT_ADAPTOR_CONF_FILEPATH));
    }

    if (fileTailerManager != null) {
        fileTailerManager.getListener().removeListener(subscriptionId);
        if (fileTailerManager.getListener().hasNoSubscriber()) {
            fileTailerManager.getTailer().stop();
            tailerMap.remove(inputEventAdaptorConfiguration.getName());
        }
    }
}

From source file:org.apache.falcon.entity.store.ConfigurationStore.java

private synchronized void updateInternal(EntityType type, Entity entity) throws FalconException {
    try {//from   w w  w .j ava 2 s  . co  m
        if (get(type, entity.getName()) != null) {
            persist(type, entity);
            ConcurrentHashMap<String, Entity> entityMap = dictionary.get(type);
            Entity oldEntity = entityMap.get(entity.getName());
            onChange(oldEntity, entity);
            entityMap.put(entity.getName(), entity);
        } else {
            throw new FalconException(entity.toShortString() + " doesn't exist");
        }
    } catch (IOException e) {
        throw new StoreAccessException(e);
    }
    AUDIT.info(type + "/" + entity.getName() + " is replaced into config store");
}

From source file:org.wso2.carbon.event.input.adaptor.kafka.KafkaEventAdaptorType.java

@Override
public void unsubscribe(InputEventAdaptorMessageConfiguration inputEventAdaptorMessageConfiguration,
        InputEventAdaptorConfiguration inputEventAdaptorConfiguration, AxisConfiguration axisConfiguration,
        String subscriptionId) {// www .j a  v a2  s . c om
    if (consumerAdaptorMap != null) {
        int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId(true);
        ConcurrentHashMap<String, ConsumerKafkaAdaptor> tenantSpecificAdaptorMap = consumerAdaptorMap
                .get(tenantId);
        if (tenantSpecificAdaptorMap != null) {
            ConsumerKafkaAdaptor consumerKafkaAdaptor = tenantSpecificAdaptorMap.get(subscriptionId);
            if (consumerKafkaAdaptor != null) {
                consumerKafkaAdaptor.shutdown();
                tenantSpecificAdaptorMap.remove(subscriptionId);
            }
        }
    }
}

From source file:com.taobao.diamond.server.service.GroupService.java

@Deprecated
public boolean updateAddress2GroupMapping(long id, String newGroup) {
    synchronized (this) {
        GroupInfo groupInfo = this.persistService.findGroupInfoByID(id);
        if (groupInfo == null)
            return false;

        ConcurrentHashMap<String, GroupInfo> dataIdGroupMap = this.addressGroupCache
                .get(groupInfo.getAddress());
        if (dataIdGroupMap == null)
            return false;
        if (dataIdGroupMap.get(groupInfo.getDataId()) == null)
            return false;
        this.persistService.updateGroup(id, newGroup);
        dataIdGroupMap.get(groupInfo.getDataId()).setGroup(newGroup);
    }//from  w ww .  j  a v a  2s  .c o m
    this.notifyService.notifyGroupChanged();
    return true;
}

From source file:com.taobao.diamond.server.service.GroupService.java

/**
 * , IP/*from w w  w .j  a  va 2 s . c o  m*/
 * 
 * @param id
 * @param newGroup
 * @param srcIp
 * @param srcUser
 * @return
 */
public boolean updateAddress2GroupMapping(long id, String newGroup, String srcIp, String srcUser) {
    synchronized (this) {
        GroupInfo groupInfo = this.persistService.findGroupInfoByID(id);
        if (groupInfo == null)
            return false;

        ConcurrentHashMap<String, GroupInfo> dataIdGroupMap = this.addressGroupCache
                .get(groupInfo.getAddress());
        if (dataIdGroupMap == null)
            return false;
        if (dataIdGroupMap.get(groupInfo.getDataId()) == null)
            return false;

        Timestamp currentTime = DiamondUtils.getCurrentTime();
        this.persistService.updateGroup(id, srcIp, srcUser, currentTime, newGroup);
        dataIdGroupMap.get(groupInfo.getDataId()).setGroup(newGroup);
    }
    this.notifyService.notifyGroupChanged();
    return true;
}