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// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: apache/rocketmq/v1/definition.proto

package apache.rocketmq.v1;

public interface MessageOrBuilder extends
    // @@protoc_insertion_point(interface_extends:apache.rocketmq.v1.Message)
    com.aliyun.openservices.ons.shaded.com.google.protobuf.MessageOrBuilder {

  /**
   * .apache.rocketmq.v1.Resource topic = 1;
   * @return Whether the topic field is set.
   */
  boolean hasTopic();
  /**
   * .apache.rocketmq.v1.Resource topic = 1;
   * @return The topic.
   */
  apache.rocketmq.v1.Resource getTopic();
  /**
   * .apache.rocketmq.v1.Resource topic = 1;
   */
  apache.rocketmq.v1.ResourceOrBuilder getTopicOrBuilder();

  /**
   *    * User defined key-value pairs.
   * If user_attribute contains the reserved keys by RocketMQ,
   * the send message request will be aborted with status `INVALID_ARGUMENT`.
   * See below links for the reserved keys
   * https://github.com/apache/rocketmq/blob/master/common/src/main/java/org/apache/rocketmq/common/message/MessageConst.java#L58
   * 
   *
   * map<string, string> user_attribute = 2;
   */
  int getUserAttributeCount();
  /**
   *    * User defined key-value pairs.
   * If user_attribute contains the reserved keys by RocketMQ,
   * the send message request will be aborted with status `INVALID_ARGUMENT`.
   * See below links for the reserved keys
   * https://github.com/apache/rocketmq/blob/master/common/src/main/java/org/apache/rocketmq/common/message/MessageConst.java#L58
   * 
   *
   * map<string, string> user_attribute = 2;
   */
  boolean containsUserAttribute(
      java.lang.String key);
  /**
   * Use {@link #getUserAttributeMap()} instead.
   */
  @java.lang.Deprecated
  java.util.Map
  getUserAttribute();
  /**
   *    * User defined key-value pairs.
   * If user_attribute contains the reserved keys by RocketMQ,
   * the send message request will be aborted with status `INVALID_ARGUMENT`.
   * See below links for the reserved keys
   * https://github.com/apache/rocketmq/blob/master/common/src/main/java/org/apache/rocketmq/common/message/MessageConst.java#L58
   * 
   *
   * map<string, string> user_attribute = 2;
   */
  java.util.Map
  getUserAttributeMap();
  /**
   *    * User defined key-value pairs.
   * If user_attribute contains the reserved keys by RocketMQ,
   * the send message request will be aborted with status `INVALID_ARGUMENT`.
   * See below links for the reserved keys
   * https://github.com/apache/rocketmq/blob/master/common/src/main/java/org/apache/rocketmq/common/message/MessageConst.java#L58
   * 
   *
   * map<string, string> user_attribute = 2;
   */

  java.lang.String getUserAttributeOrDefault(
      java.lang.String key,
      java.lang.String defaultValue);
  /**
   *    * User defined key-value pairs.
   * If user_attribute contains the reserved keys by RocketMQ,
   * the send message request will be aborted with status `INVALID_ARGUMENT`.
   * See below links for the reserved keys
   * https://github.com/apache/rocketmq/blob/master/common/src/main/java/org/apache/rocketmq/common/message/MessageConst.java#L58
   * 
   *
   * map<string, string> user_attribute = 2;
   */

  java.lang.String getUserAttributeOrThrow(
      java.lang.String key);

  /**
   * .apache.rocketmq.v1.SystemAttribute system_attribute = 3;
   * @return Whether the systemAttribute field is set.
   */
  boolean hasSystemAttribute();
  /**
   * .apache.rocketmq.v1.SystemAttribute system_attribute = 3;
   * @return The systemAttribute.
   */
  apache.rocketmq.v1.SystemAttribute getSystemAttribute();
  /**
   * .apache.rocketmq.v1.SystemAttribute system_attribute = 3;
   */
  apache.rocketmq.v1.SystemAttributeOrBuilder getSystemAttributeOrBuilder();

  /**
   * bytes body = 4;
   * @return The body.
   */
  com.aliyun.openservices.ons.shaded.com.google.protobuf.ByteString getBody();
}