import com.google.protos.ipc.invalidation.AndroidService.ListenerUpcall.RegistrationStatusUpcall; //导入依赖的package包/类
public static Intent newRegistrationStatusIntent(ObjectIdP object, boolean isRegistered) {
  Intent intent = new Intent();
  RegistrationStatusUpcall regUpcall = RegistrationStatusUpcall.newBuilder()
        .setObjectId(object)
        .setIsRegistered(isRegistered).build();
  intent.putExtra(LISTENER_UPCALL_KEY,
      newBuilder().setRegistrationStatus(regUpcall).build().toByteArray());
  return intent;
}
 

import com.google.protos.ipc.invalidation.AndroidService.ListenerUpcall.RegistrationStatusUpcall; //导入依赖的package包/类
/** Appends a description of the given {@code status} upcall to the given {@code builder}. */
public static TextBuilder toCompactString(TextBuilder builder,
    RegistrationStatusUpcall status) {
  if (status == null) {
    return builder;
  }
  builder.append("registrationStatus(objectId = ");
  CommonProtoStrings2.toCompactString(builder, status.getObjectId());
  return builder.append(", isRegistered = ").append(status.getIsRegistered()).append(")");
}
 

import com.google.protos.ipc.invalidation.AndroidService.ListenerUpcall.RegistrationStatusUpcall; //导入依赖的package包/类
/** Returns whether {@code field} is present in {@code message}. */
@Override
@SuppressWarnings("unchecked")
public boolean hasField(MessageLite rawMessage, Descriptor field) {
  Preconditions.checkNotNull(rawMessage);
  Preconditions.checkNotNull(field);
  RegistrationStatusUpcall message = (RegistrationStatusUpcall) rawMessage;
  if (field == OBJECT_ID) {
    return message.hasObjectId();
  }
  if (field == IS_REGISTERED) {
    return message.hasIsRegistered();
  }
  throw new IllegalArgumentException("Bad descriptor: " + field);
}
 

import com.google.protos.ipc.invalidation.AndroidService.ListenerUpcall.RegistrationStatusUpcall; //导入依赖的package包/类
/** Returns the {@code field} from {@code message}. */
@Override
@SuppressWarnings("unchecked")
public Object getField(MessageLite rawMessage, Descriptor field) {
  Preconditions.checkNotNull(rawMessage);
  Preconditions.checkNotNull(field);
  RegistrationStatusUpcall message = (RegistrationStatusUpcall) rawMessage;
  if (field == OBJECT_ID) {
    return message.getObjectId();
  }
  if (field == IS_REGISTERED) {
    return message.getIsRegistered();
  }
  throw new IllegalArgumentException("Bad descriptor: " + field);
}
 

import com.google.protos.ipc.invalidation.AndroidService.ListenerUpcall.RegistrationStatusUpcall; //导入依赖的package包/类
/**
 * Handles a listener upcall by decoding the protocol buffer in {@code intent} and dispatching
 * to the appropriate method on the {@link #listener}.
 */
public void handleIntent(Intent intent) {
  // TODO: use wakelocks

  // Unmarshall the arguments from the Intent and make the appropriate call on the listener.
  ListenerUpcall upcall = tryParseIntent(intent);
  if (upcall == null) {
    return;
  }

  if (upcall.hasReady()) {
    listener.ready(client);
  } else if (upcall.hasInvalidate()) {
    // Handle all invalidation-related upcalls on a common path, since they require creating
    // an AckHandleP.
    onInvalidateUpcall(upcall, listener);
  } else if (upcall.hasRegistrationStatus()) {
    RegistrationStatusUpcall regStatus = upcall.getRegistrationStatus();
    listener.informRegistrationStatus(client,
        ProtoConverter.convertFromObjectIdProto(regStatus.getObjectId()),
        regStatus.getIsRegistered() ?
            RegistrationState.REGISTERED : RegistrationState.UNREGISTERED);
  } else if (upcall.hasRegistrationFailure()) {
    RegistrationFailureUpcall failure = upcall.getRegistrationFailure();
    listener.informRegistrationFailure(client,
        ProtoConverter.convertFromObjectIdProto(failure.getObjectId()),
        failure.getTransient(),
        failure.getMessage());
  } else if (upcall.hasReissueRegistrations()) {
    ReissueRegistrationsUpcall reissueRegs = upcall.getReissueRegistrations();
    listener.reissueRegistrations(client, reissueRegs.getPrefix().toByteArray(),
        reissueRegs.getLength());
  } else if (upcall.hasError()) {
    ErrorUpcall error = upcall.getError();
    ErrorInfo errorInfo = ErrorInfo.newInstance(error.getErrorCode(), error.getIsTransient(),
        error.getErrorMessage(), null);
    listener.informError(client, errorInfo);
  } else {
    logger.warning("Dropping listener Intent with unknown call: %s", upcall);
  }
}