Package org.apache.pulsar.client.impl.schema.reader

Class AbstractMultiVersionReader<T>

  • All Implemented Interfaces:
    org.apache.pulsar.client.api.schema.SchemaReader<T>
    Direct Known Subclasses:
    AbstractMultiVersionAvroBaseReader, MultiVersionGenericProtobufNativeReader
    public abstract class AbstractMultiVersionReader<T>
extends java.lang.Object
implements org.apache.pulsar.client.api.schema.SchemaReader<T>
    The multi version reader abstract class, implement it will handle the multi version schema.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected static org.slf4j.Logger LOG  
      protected org.apache.pulsar.client.api.schema.SchemaReader<T> providerSchemaReader  
      protected org.apache.pulsar.client.api.schema.SchemaInfoProvider schemaInfoProvider  

    • Constructor Summary

      Constructors 
      Constructor Description
      AbstractMultiVersionReader​(org.apache.pulsar.client.api.schema.SchemaReader<T> providerSchemaReader)  

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      protected org.apache.pulsar.common.schema.SchemaInfo getSchemaInfoByVersion​(byte[] schemaVersion)
      TODO: think about how to make this async.
      org.apache.pulsar.client.api.schema.SchemaReader<T> getSchemaReader​(byte[] schemaVersion)  
      protected abstract org.apache.pulsar.client.api.schema.SchemaReader<T> loadReader​(org.apache.pulsar.common.protocol.schema.BytesSchemaVersion schemaVersion)
      Load the schema reader for reading messages encoded by the given schema version.
      T read​(byte[] bytes, byte[] schemaVersion)  
      T read​(byte[] bytes, int offset, int length)  
      T read​(java.io.InputStream inputStream)  
      T read​(java.io.InputStream inputStream, byte[] schemaVersion)  
      void setSchemaInfoProvider​(org.apache.pulsar.client.api.schema.SchemaInfoProvider schemaInfoProvider)  

      • Methods inherited from class java.lang.Object

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

      • Methods inherited from interface org.apache.pulsar.client.api.schema.SchemaReader

        getNativeSchema, read

    • Field Detail

      • providerSchemaReader

        protected final org.apache.pulsar.client.api.schema.SchemaReader<T> providerSchemaReader

      • schemaInfoProvider

        protected org.apache.pulsar.client.api.schema.SchemaInfoProvider schemaInfoProvider

      • LOG

        protected static final org.slf4j.Logger LOG

    • Constructor Detail

      • AbstractMultiVersionReader

        public AbstractMultiVersionReader​(org.apache.pulsar.client.api.schema.SchemaReader<T> providerSchemaReader)

    • Method Detail

      • read

        public T read​(byte[] bytes,
              int offset,
              int length)
        Specified by:
        read in interface org.apache.pulsar.client.api.schema.SchemaReader<T>

      • read

        public T read​(java.io.InputStream inputStream)
        Specified by:
        read in interface org.apache.pulsar.client.api.schema.SchemaReader<T>

      • read

        public T read​(java.io.InputStream inputStream,
              byte[] schemaVersion)
        Specified by:
        read in interface org.apache.pulsar.client.api.schema.SchemaReader<T>

      • getSchemaReader

        public org.apache.pulsar.client.api.schema.SchemaReader<T> getSchemaReader​(byte[] schemaVersion)
                                                                    throws java.util.concurrent.ExecutionException
        Throws:
        java.util.concurrent.ExecutionException

      • read

        public T read​(byte[] bytes,
              byte[] schemaVersion)
        Specified by:
        read in interface org.apache.pulsar.client.api.schema.SchemaReader<T>

      • setSchemaInfoProvider

        public void setSchemaInfoProvider​(org.apache.pulsar.client.api.schema.SchemaInfoProvider schemaInfoProvider)
        Specified by:
        setSchemaInfoProvider in interface org.apache.pulsar.client.api.schema.SchemaReader<T>

      • loadReader

        protected abstract org.apache.pulsar.client.api.schema.SchemaReader<T> loadReader​(org.apache.pulsar.common.protocol.schema.BytesSchemaVersion schemaVersion)
        Load the schema reader for reading messages encoded by the given schema version.
        Parameters:
        schemaVersion - the provided schema version
        Returns:
        the schema reader for decoding messages encoded by the provided schema version.

      • getSchemaInfoByVersion

        protected org.apache.pulsar.common.schema.SchemaInfo getSchemaInfoByVersion​(byte[] schemaVersion)
        TODO: think about how to make this async.