Examples with RegistrationStatsInfo com.linkedin.databus.client.monitoring.RegistrationStatsInfo used on opensource projects

Example 1 with RegistrationStatsInfo

use of com.linkedin.databus.client.monitoring.RegistrationStatsInfo in project databus by linkedin.

the class ClientStateRequestProcessor method processRegistrationInfo.

/**
   * Provides an individual registrations details. The individual registration can be
   * either that of V2/V3 and top-level or child. 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, V2/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. The output format can be different depending on whether it is a V2/V3
   * as we are dumping the entire Registration in the case of V2. In the case of V3, we
   * create an intermediate objects. These are legacy formats which when changed could
   * cause the integ-tests to fail.
   * 
   * @param request
   *          DatabusRequest corresponding to the REST call.
   * @throws IOException
   *           if unable to write to output channel.
   * @throws RequestProcessingException
   *           when registration could not be located.
   */
private void processRegistrationInfo(DatabusRequest request) throws IOException, RequestProcessingException {
    boolean found = true;
    // V2 Registration lookup first
    RegistrationStatsInfo regStatsInfo = null;
    try {
        DatabusRegistration r = findV2Registration(request, REGISTRATION_KEY_PREFIX);
        writeJsonObjectToResponse(r, request);
    } catch (RequestProcessingException ex) {
        found = false;
    }
    // V3 Registration lookup if not found
    if (!found) {
        // if
        DatabusV3Registration reg = findV3Registration(request, REGISTRATION_KEY_PREFIX);
        // reg
        // is
        // null,
        // the
        // callee
        // throws
        // an
        // exception.
        DatabusSourcesConnection sourcesConn = _client.getDatabusSourcesConnection(reg.getRegistrationId().getId());
        regStatsInfo = new RegistrationStatsInfo(reg, sourcesConn);
        writeJsonObjectToResponse(regStatsInfo, request);
    }
}