Package com.linkedin.venice.kafka.protocol

Class TopicSwitch

  • All Implemented Interfaces:
    java.io.Externalizable, java.io.Serializable, java.lang.Comparable<org.apache.avro.specific.SpecificRecord>, org.apache.avro.generic.GenericContainer, org.apache.avro.generic.GenericRecord, org.apache.avro.generic.IndexedRecord, org.apache.avro.specific.SpecificRecord
    public class TopicSwitch
extends org.apache.avro.specific.SpecificRecordBase
implements org.apache.avro.specific.SpecificRecord
    This ControlMessage is sent by the Controller, once per partition; it will only be used in leader/follower state transition model; this control message will indicate the leader to switch to a new source topic and start consuming from offset with a specific timestamp.
    See Also:
    Serialized Form

    • Field Summary

      Fields 
      Modifier and Type Field Description
      long rewindStartTimestamp
      The creation time of this control message in parent controller minus the rewind time of the corresponding store; leaders in different fabrics will get the offset of the source topic by the same start timestamp and start consuming from there; if timestamp is 0, leader will start consuming from the beginning of the source topic.
      static org.apache.avro.Schema SCHEMA$  
      java.util.List<java.lang.CharSequence> sourceKafkaServers
      A list of Kafka bootstrap servers URLs where the new source topic exists; currently there will be only one URL in the list, but the list opens up the possibility for leader to consume from different fabrics in active-active replication mode.
      java.lang.CharSequence sourceTopicName
      Name of new the source topic.

    • Constructor Summary

      Constructors 
      Constructor Description
      TopicSwitch()
      Default constructor.
      TopicSwitch​(java.util.List<java.lang.CharSequence> sourceKafkaServers, java.lang.CharSequence sourceTopicName, java.lang.Long rewindStartTimestamp)
      All-args constructor.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object get​(int field$)  
      static org.apache.avro.Schema getClassSchema()  
      long getRewindStartTimestamp()
      Gets the value of the 'rewindStartTimestamp' field.
      org.apache.avro.Schema getSchema()  
      java.util.List<java.lang.CharSequence> getSourceKafkaServers()
      Gets the value of the 'sourceKafkaServers' field.
      java.lang.CharSequence getSourceTopicName()
      Gets the value of the 'sourceTopicName' field.
      org.apache.avro.specific.SpecificData getSpecificData()  
      void put​(int field$, java.lang.Object value$)  
      void readExternal​(java.io.ObjectInput in)  
      void setRewindStartTimestamp​(long value)
      Sets the value of the 'rewindStartTimestamp' field.
      void setSourceKafkaServers​(java.util.List<java.lang.CharSequence> value)
      Sets the value of the 'sourceKafkaServers' field.
      void setSourceTopicName​(java.lang.CharSequence value)
      Sets the value of the 'sourceTopicName' field.
      void writeExternal​(java.io.ObjectOutput out)  

      • Methods inherited from class org.apache.avro.specific.SpecificRecordBase

        compareTo, customDecode, customEncode, equals, get, getConversion, getConversion, hasCustomCoders, hashCode, put, toString

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface org.apache.avro.generic.GenericRecord

        hasField

    • Field Detail

      • SCHEMA$

        public static final org.apache.avro.Schema SCHEMA$

      • sourceKafkaServers

        public java.util.List<java.lang.CharSequence> sourceKafkaServers
        A list of Kafka bootstrap servers URLs where the new source topic exists; currently there will be only one URL in the list, but the list opens up the possibility for leader to consume from different fabrics in active-active replication mode.

      • sourceTopicName

        public java.lang.CharSequence sourceTopicName
        Name of new the source topic.

      • rewindStartTimestamp

        public long rewindStartTimestamp
        The creation time of this control message in parent controller minus the rewind time of the corresponding store; leaders in different fabrics will get the offset of the source topic by the same start timestamp and start consuming from there; if timestamp is 0, leader will start consuming from the beginning of the source topic. if timestmap is -2 then leader will calculate the timestamp itself based on SOP/EOP's producer timestamp

    • Constructor Detail

      • TopicSwitch

        public TopicSwitch()
        Default constructor. Note that this does not initialize fields to their default values from the schema. If that is desired then one should use newBuilder().

      • TopicSwitch

        public TopicSwitch​(java.util.List<java.lang.CharSequence> sourceKafkaServers,
                   java.lang.CharSequence sourceTopicName,
                   java.lang.Long rewindStartTimestamp)
        All-args constructor.
        Parameters:
        sourceKafkaServers - A list of Kafka bootstrap servers URLs where the new source topic exists; currently there will be only one URL in the list, but the list opens up the possibility for leader to consume from different fabrics in active-active replication mode.
        sourceTopicName - Name of new the source topic.
        rewindStartTimestamp - The creation time of this control message in parent controller minus the rewind time of the corresponding store; leaders in different fabrics will get the offset of the source topic by the same start timestamp and start consuming from there; if timestamp is 0, leader will start consuming from the beginning of the source topic. if timestmap is -2 then leader will calculate the timestamp itself based on SOP/EOP's producer timestamp

    • Method Detail

      • getClassSchema

        public static org.apache.avro.Schema getClassSchema()

      • getSpecificData

        public org.apache.avro.specific.SpecificData getSpecificData()
        Overrides:
        getSpecificData in class org.apache.avro.specific.SpecificRecordBase

      • getSchema

        public org.apache.avro.Schema getSchema()
        Specified by:
        getSchema in interface org.apache.avro.generic.GenericContainer
        Specified by:
        getSchema in class org.apache.avro.specific.SpecificRecordBase

      • get

        public java.lang.Object get​(int field$)
        Specified by:
        get in interface org.apache.avro.generic.IndexedRecord
        Specified by:
        get in class org.apache.avro.specific.SpecificRecordBase

      • put

        public void put​(int field$,
                java.lang.Object value$)
        Specified by:
        put in interface org.apache.avro.generic.IndexedRecord
        Specified by:
        put in class org.apache.avro.specific.SpecificRecordBase

      • getSourceKafkaServers

        public java.util.List<java.lang.CharSequence> getSourceKafkaServers()
        Gets the value of the 'sourceKafkaServers' field.
        Returns:
        A list of Kafka bootstrap servers URLs where the new source topic exists; currently there will be only one URL in the list, but the list opens up the possibility for leader to consume from different fabrics in active-active replication mode.

      • setSourceKafkaServers

        public void setSourceKafkaServers​(java.util.List<java.lang.CharSequence> value)
        Sets the value of the 'sourceKafkaServers' field. A list of Kafka bootstrap servers URLs where the new source topic exists; currently there will be only one URL in the list, but the list opens up the possibility for leader to consume from different fabrics in active-active replication mode.
        Parameters:
        value - the value to set.

      • getSourceTopicName

        public java.lang.CharSequence getSourceTopicName()
        Gets the value of the 'sourceTopicName' field.
        Returns:
        Name of new the source topic.

      • setSourceTopicName

        public void setSourceTopicName​(java.lang.CharSequence value)
        Sets the value of the 'sourceTopicName' field. Name of new the source topic.
        Parameters:
        value - the value to set.

      • getRewindStartTimestamp

        public long getRewindStartTimestamp()
        Gets the value of the 'rewindStartTimestamp' field.
        Returns:
        The creation time of this control message in parent controller minus the rewind time of the corresponding store; leaders in different fabrics will get the offset of the source topic by the same start timestamp and start consuming from there; if timestamp is 0, leader will start consuming from the beginning of the source topic. if timestmap is -2 then leader will calculate the timestamp itself based on SOP/EOP's producer timestamp

      • setRewindStartTimestamp

        public void setRewindStartTimestamp​(long value)
        Sets the value of the 'rewindStartTimestamp' field. The creation time of this control message in parent controller minus the rewind time of the corresponding store; leaders in different fabrics will get the offset of the source topic by the same start timestamp and start consuming from there; if timestamp is 0, leader will start consuming from the beginning of the source topic. if timestmap is -2 then leader will calculate the timestamp itself based on SOP/EOP's producer timestamp
        Parameters:
        value - the value to set.

      • writeExternal

        public void writeExternal​(java.io.ObjectOutput out)
                   throws java.io.IOException
        Specified by:
        writeExternal in interface java.io.Externalizable
        Overrides:
        writeExternal in class org.apache.avro.specific.SpecificRecordBase
        Throws:
        java.io.IOException

      • readExternal

        public void readExternal​(java.io.ObjectInput in)
                  throws java.io.IOException
        Specified by:
        readExternal in interface java.io.Externalizable
        Overrides:
        readExternal in class org.apache.avro.specific.SpecificRecordBase
        Throws:
        java.io.IOException