Examples with DbusPartitionInfoImpl com.linkedin.databus.client.DbusPartitionInfoImpl used on opensource projects

Example 1 with DbusPartitionInfoImpl

use of com.linkedin.databus.client.DbusPartitionInfoImpl in project databus by linkedin.

the class ClientStateRequestProcessor method getV2PartitionRegistration.

/**
   * Helper method to get partition registration information for a given V2 Cluster
   * partition
   * 
   * @param cluster
   *          V2 Cluster
   * @param partition
   *          Partition in the cluster.
   * @return
   * @throws RequestProcessingException
   *           When cluster or partition is not hosted in this instance.
   */
private RegInfo getV2PartitionRegistration(String cluster, long partition) throws RequestProcessingException {
    DatabusV2ClusterRegistrationImpl reg = getV2ClusterRegistration(cluster);
    DbusPartitionInfo p = new DbusPartitionInfoImpl(partition);
    DatabusRegistration r = reg.getPartitionRegs().get(p);
    if (null == r)
        throw new RequestProcessingException("Partition(" + partition + ") for cluster (" + cluster + ") not found !!");
    return new RegInfo(r.getState().name(), r.getRegistrationId(), r.getStatus(), r.getFilterConfig(), r.getSubscriptions());
}

Example 2 with DbusPartitionInfoImpl

use of com.linkedin.databus.client.DbusPartitionInfoImpl in project databus by linkedin.

the class DatabusV2ClusterRegistrationImpl method onGainedPartitionOwnership.

@Override
public synchronized void onGainedPartitionOwnership(int partition) {
    _log.info("Partition (" + partition + ") getting added !!");
    DbusPartitionInfo partitionInfo = new DbusPartitionInfoImpl(partition);
    try {
        addPartition(partitionInfo);
    } catch (DatabusClientException e) {
        _log.error("Unable to add partition. Shutting down the cluster !!", e);
        deregister();
    }
}

Example 3 with DbusPartitionInfoImpl

use of com.linkedin.databus.client.DbusPartitionInfoImpl in project databus by linkedin.

the class DatabusV2ClusterRegistrationImpl method onLostPartitionOwnership.

@Override
public synchronized void onLostPartitionOwnership(int partition) {
    _log.info("Partition (" + partition + ") getting removed !!");
    DbusPartitionInfo partitionInfo = new DbusPartitionInfoImpl(partition);
    try {
        dropOnePartition(partitionInfo);
    } catch (DatabusException e) {
        _log.error("Unable to drop partition. Shutting down the cluster !!", e);
        deregister();
    }
}

Example 4 with DbusPartitionInfoImpl

use of com.linkedin.databus.client.DbusPartitionInfoImpl in project databus by linkedin.

the class ClientStateRequestProcessor method getAllTopLevelV3Registrations.

/**
   * Returns all the top-level V3 registrations. Top-level registrations are those that
   * were created as a result of one of "registerXXX()" calls on databus-client. In the
   * case of multi-partition registrations (like MPRegistration, V3 CLB), only the parent
   * registration is considered the top-level registration. Per-partition (child)
   * registrations which were created as part of partition migration are NOT top-level
   * registrations.
   * 
   * @return collection of top-level registrations (V3)
   */
private Collection<RegInfo> getAllTopLevelV3Registrations() {
    /**
     * Important Note: There is an important implementation difference on which
     * registrations are stored in the global registration data-structure maintained by
     * the client (DatabusHttp[V3]ClientImpls) between V2 and V3.
     * 
     * 1. In the case of V2, only top-level registrations are stored in the global
     * data-structure (DatabusHttpClientImpl.regList 2. In the case of V3, all
     * registrations are stored in the global data-structure.
     * 
     * In the case of V3, this is needed so that all registrations can act on the relay
     * external view change. This can be refactored in the future by moving the
     * relay-external view change to registration impl ( reduce the complexity in
     * ClientImpl ). The V2 implementation did not have this logic and was following a
     * more intuitive structure of preserving the hierarchy.
     */
    Map<RegistrationId, RegInfo> regListMap = new HashMap<RegistrationId, RegInfo>();
    /**
     * The _client.getRegistrationIdMap() has all registrations in one place. Top-Level
     * Registrations = Only those registrations whose getParent() == null.
     */
    Map<RegistrationId, DatabusV3Registration> regMap = _client.getRegistrationIdMap();
    for (Entry<RegistrationId, DatabusV3Registration> e : regMap.entrySet()) {
        RegInfo regInfo = null;
        DatabusV3Registration r = e.getValue();
        // If not top-level, skip
        if (null != r.getParentRegistration()) {
            continue;
        }
        Map<DbusPartitionInfo, RegInfo> childR = null;
        if (r instanceof DatabusV3MultiPartitionRegistration) {
            // ass the children regs to parent.
            Map<PhysicalPartition, DatabusV3Registration> childRegs = ((DatabusV3MultiPartitionRegistration) r).getPartionRegs();
            childR = new HashMap<DbusPartitionInfo, RegInfo>();
            for (Entry<PhysicalPartition, DatabusV3Registration> e2 : childRegs.entrySet()) {
                childR.put(new DbusPartitionInfoImpl(e2.getKey().getId()), new RegInfo(e.getValue().getState().name(), e.getValue().getRegistrationId(), e.getValue().getStatus(), null, e.getValue().getSubscriptions()));
            }
        }
        regInfo = new RegInfo(r.getState().name(), r.getRegistrationId(), r.getStatus(), null, r.getSubscriptions(), true, childR);
        regListMap.put(e.getKey(), regInfo);
    }
    return regListMap.values();
}