HRegion.java 文件源码

@Override public boolean registerService(Service instance) {
  /*
   * No stacking of instances is allowed for a single service name
   */
  Descriptors.ServiceDescriptor serviceDesc = instance.getDescriptorForType();
  if (coprocessorServiceHandlers.containsKey(serviceDesc.getFullName())) {
    LOG.error("Coprocessor service " + serviceDesc.getFullName()
        + " already registered, rejecting request from " + instance);
    return false;
  }

  coprocessorServiceHandlers.put(serviceDesc.getFullName(), instance);
  if (LOG.isDebugEnabled()) {
    LOG.debug("Registered coprocessor service: region=" + Bytes
        .toStringBinary(getRegionInfo().getRegionName()) + " service=" + serviceDesc
        .getFullName());
  }
  return true;
}