Java ParsedMessage类代码示例

import com.google.ipc.invalidation.ticl.ProtocolHandler.ParsedMessage; //导入依赖的package包/类
/**
 * Returns whether the token in the header of {@code parsedMessage} matches either the
 * client token or nonce of this Ticl (depending on which is non-{@code null}).
 */
private boolean validateToken(ParsedMessage parsedMessage) {
  if (clientToken != null) {
    // Client token case.
    if (!TypedUtil.<Bytes>equals(clientToken, parsedMessage.header.token)) {
      logger.info("Incoming message has bad token: server = %s, client = %s",
          parsedMessage.header.token, clientToken);
      statistics.recordError(ClientErrorType.TOKEN_MISMATCH);
      return false;
    }
    return true;
  } else if (nonce != null) {
    // Nonce case.
    if (!TypedUtil.<Bytes>equals(nonce, parsedMessage.header.token)) {
      statistics.recordError(ClientErrorType.NONCE_MISMATCH);
      logger.info("Rejecting server message with mismatched nonce: Client = %s, Server = %s",
          nonce, parsedMessage.header.token);
      return false;
    } else {
      logger.info("Accepting server message with matching nonce: %s", nonce);
      return true;
    }
  }
  // Neither token nor nonce; ignore message.
  logger.warning("Neither token nor nonce was set in validateToken: %s, %s", clientToken, nonce);
  return false;
}
 

import com.google.ipc.invalidation.ticl.ProtocolHandler.ParsedMessage; //导入依赖的package包/类
/**
 * Returns whether the token in the header of {@code parsedMessage} matches either the
 * client token or nonce of this Ticl (depending on which is non-{@code null}).
 */
private boolean validateToken(ParsedMessage parsedMessage) {
  if (clientToken != null) {
    // Client token case.
    if (!TypedUtil.<ByteString>equals(clientToken, parsedMessage.header.token)) {
      logger.info("Incoming message has bad token: server = %s, client = %s",
          CommonProtoStrings2.toLazyCompactString(parsedMessage.header.token),
          CommonProtoStrings2.toLazyCompactString(clientToken));
      statistics.recordError(ClientErrorType.TOKEN_MISMATCH);
      return false;
    }
    return true;
  } else if (nonce != null) {
    // Nonce case.
    if (!TypedUtil.<ByteString>equals(nonce, parsedMessage.header.token)) {
      statistics.recordError(ClientErrorType.NONCE_MISMATCH);
      logger.info("Rejecting server message with mismatched nonce: Client = %s, Server = %s",
          CommonProtoStrings2.toLazyCompactString(nonce),
          CommonProtoStrings2.toLazyCompactString(parsedMessage.header.token));
      return false;
    } else {
      logger.info("Accepting server message with matching nonce: %s",
          CommonProtoStrings2.toLazyCompactString(nonce));
      return true;
    }
  }
  // Neither token nor nonce; ignore message.
  logger.warning("Neither token nor nonce was set in validateToken: %s, %s", clientToken, nonce);
  return false;
}
 

import com.google.ipc.invalidation.ticl.ProtocolHandler.ParsedMessage; //导入依赖的package包/类
/**
 * Handles an {@code incomingMessage} from the data center. If it is valid and addressed to
 * this client, dispatches to methods to handle sub-parts of the message; if not, drops the
 * message.
 */
void handleIncomingMessage(byte[] incomingMessage) {
  Preconditions.checkState(internalScheduler.isRunningOnThread(), "Not on internal thread");
  statistics.recordReceivedMessage(ReceivedMessageType.TOTAL);
  ParsedMessage parsedMessage = protocolHandler.handleIncomingMessage(incomingMessage);
  if (parsedMessage == null) {
    // Invalid message.
    return;
  }

  // Ensure we have either a matching token or a matching nonce.
  if (!validateToken(parsedMessage)) {
    return;
  }

  // Handle a token-control message, if present.
  if (parsedMessage.tokenControlMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.TOKEN_CONTROL);
    handleTokenChanged(parsedMessage.header.token,
        parsedMessage.tokenControlMessage.hasNewToken() ?
            parsedMessage.tokenControlMessage.getNewToken() : null);
  }

  // We might have lost our token or failed to acquire one. Ensure that we do not proceed in
  // either case.
  if (clientToken == null) {
    return;
  }

  // First, handle the message header.
  handleIncomingHeader(parsedMessage.header);

  // Then, handle any work remaining in the message.
  if (parsedMessage.invalidationMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.INVALIDATION);
    handleInvalidations(parsedMessage.invalidationMessage.getInvalidation());
  }
  if (parsedMessage.registrationStatusMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.REGISTRATION_STATUS);
    handleRegistrationStatus(parsedMessage.registrationStatusMessage.getRegistrationStatus());
  }
  if (parsedMessage.registrationSyncRequestMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.REGISTRATION_SYNC_REQUEST);
    handleRegistrationSyncRequest();
  }
  if (parsedMessage.infoRequestMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.INFO_REQUEST);
    handleInfoMessage(parsedMessage.infoRequestMessage.getInfoType());
  }
  if (parsedMessage.errorMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.ERROR);
    handleErrorMessage(parsedMessage.header, parsedMessage.errorMessage.getCode(),
        parsedMessage.errorMessage.getDescription());
  }
}
 

import com.google.ipc.invalidation.ticl.ProtocolHandler.ParsedMessage; //导入依赖的package包/类
/**
 * Handles an {@code incomingMessage} from the data center. If it is valid and addressed to
 * this client, dispatches to methods to handle sub-parts of the message; if not, drops the
 * message.
 */
void handleIncomingMessage(byte[] incomingMessage) {
  Preconditions.checkState(internalScheduler.isRunningOnThread(), "Not on internal thread");
  statistics.recordReceivedMessage(ReceivedMessageType.TOTAL);
  ParsedMessage parsedMessage = protocolHandler.handleIncomingMessage(incomingMessage);
  if (parsedMessage == null) {
    // Invalid message.
    return;
  }

  // Ensure we have either a matching token or a matching nonce.
  if (!validateToken(parsedMessage)) {
    return;
  }

  // Handle a token-control message, if present.
  if (parsedMessage.tokenControlMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.TOKEN_CONTROL);
    handleTokenChanged(parsedMessage.header.token,
        parsedMessage.tokenControlMessage.hasNewToken() ?
            parsedMessage.tokenControlMessage.getNewToken() : null);
  }

  // We might have lost our token or failed to acquire one. Ensure that we do not proceed in
  // either case.
  if (clientToken == null) {
    return;
  }

  // First, handle the message header.
  handleIncomingHeader(parsedMessage.header);

  // Then, handle any work remaining in the message.
  if (parsedMessage.invalidationMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.INVALIDATION);
    handleInvalidations(parsedMessage.invalidationMessage.getInvalidationList());
  }
  if (parsedMessage.registrationStatusMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.REGISTRATION_STATUS);
    handleRegistrationStatus(parsedMessage.registrationStatusMessage.getRegistrationStatusList());
  }
  if (parsedMessage.registrationSyncRequestMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.REGISTRATION_SYNC_REQUEST);
    handleRegistrationSyncRequest();
  }
  if (parsedMessage.infoRequestMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.INFO_REQUEST);
    handleInfoMessage(parsedMessage.infoRequestMessage.getInfoTypeList());
  }
  if (parsedMessage.errorMessage != null) {
    statistics.recordReceivedMessage(ReceivedMessageType.ERROR);
    handleErrorMessage(parsedMessage.header, parsedMessage.errorMessage.getCode(),
        parsedMessage.errorMessage.getDescription());
  }
}