Package org.springframework.kafka.support.serializer

Class DelegatingByTypeSerializer

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

    • Constructor Summary

      Constructors 
      Constructor Description
      DelegatingByTypeSerializer​(java.util.Map<java.lang.Class<?>,​org.apache.kafka.common.serialization.Serializer> delegates)
      Construct an instance with the map of delegates; keys matched exactly.
      DelegatingByTypeSerializer​(java.util.Map<java.lang.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

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void configure​(java.util.Map<java.lang.String,​?> configs, boolean isKey)  
      protected org.apache.kafka.common.serialization.Serializer findDelegate​(java.lang.Object data, java.util.Map<java.lang.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​(java.lang.String topic, java.lang.Object data)  
      byte[] serialize​(java.lang.String topic, org.apache.kafka.common.header.Headers headers, java.lang.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 Detail

      • DelegatingByTypeSerializer

        public DelegatingByTypeSerializer​(java.util.Map<java.lang.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​(java.util.Map<java.lang.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 Detail

      • isAssignable

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

      • configure

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

      • serialize

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

      • serialize

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

      • findDelegate

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