Package org.springframework.kafka.support.serializer

Class DelegatingByTypeSerializer

java.lang.Object
org.springframework.kafka.support.serializer.DelegatingByTypeSerializer
All Implemented Interfaces:
Closeable, AutoCloseable, org.apache.kafka.common.serialization.Serializer<Object>
public class DelegatingByTypeSerializer extends Object implements org.apache.kafka.common.serialization.Serializer<Object>
Delegates to a serializer based on type.
Since:
2.7.9

  • Constructor Summary

    Constructors
    Constructor
    Description
    DelegatingByTypeSerializer(Map<Class<?>,org.apache.kafka.common.serialization.Serializer<?>> delegates)
    Construct an instance with the map of delegates; keys matched exactly.
    DelegatingByTypeSerializer(Map<Class<?>,org.apache.kafka.common.serialization.Serializer<?>> delegates, boolean assignable)
    Construct an instance with the map of delegates; keys matched exactly or if the target object is assignable to the key, depending on the assignable argument.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    configure(Map<String,?> configs, boolean isKey)
     
    protected <T> org.apache.kafka.common.serialization.Serializer<T>
    findDelegate(T data, Map<Class<?>,org.apache.kafka.common.serialization.Serializer<?>> delegates)
    Determine the serializer for the data type.
    protected boolean
    isAssignable()
    Returns true if findDelegate(Object, Map) should consider assignability to the key rather than an exact match.
    byte[]
    serialize(String topic, Object data)
     
    byte[]
    serialize(String topic, org.apache.kafka.common.header.Headers headers, Object data)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.apache.kafka.common.serialization.Serializer

    close

  • Constructor Details

    • DelegatingByTypeSerializer

      public DelegatingByTypeSerializer(Map<Class<?>,org.apache.kafka.common.serialization.Serializer<?>> delegates)
      Construct an instance with the map of delegates; keys matched exactly.
      Parameters:
      delegates - the delegates.

    • DelegatingByTypeSerializer

      public DelegatingByTypeSerializer(Map<Class<?>,org.apache.kafka.common.serialization.Serializer<?>> delegates, boolean assignable)
      Construct an instance with the map of delegates; keys matched exactly or if the target object is assignable to the key, depending on the assignable argument. If assignable, entries are checked in the natural entry order so an ordered map such as a LinkedHashMap is recommended.
      Parameters:
      delegates - the delegates.
      assignable - whether the target is assignable to the key.
      Since:
      2.8.3

  • Method Details

    • isAssignable

      protected boolean isAssignable()
      Returns true if findDelegate(Object, Map) should consider assignability to the key rather than an exact match.
      Returns:
      true if assignable.
      Since:
      2.8.3

    • configure

      public void configure(Map<String,?> configs, boolean isKey)
      Specified by:
      configure in interface org.apache.kafka.common.serialization.Serializer<Object>

    • serialize

      public byte[] serialize(String topic, Object data)
      Specified by:
      serialize in interface org.apache.kafka.common.serialization.Serializer<Object>

    • serialize

      public byte[] serialize(String topic, org.apache.kafka.common.header.Headers headers, Object data)
      Specified by:
      serialize in interface org.apache.kafka.common.serialization.Serializer<Object>

    • findDelegate

      protected <T> org.apache.kafka.common.serialization.Serializer<T> findDelegate(T data, Map<Class<?>,org.apache.kafka.common.serialization.Serializer<?>> delegates)
      Determine the serializer for the data type.
      Type Parameters:
      T - the data type
      Parameters:
      data - the data.
      delegates - the available delegates.
      Returns:
      the delegate.
      Throws:
      org.apache.kafka.common.errors.SerializationException - when there is no match.
      Since:
      2.8.3