Package com.datastax.astra.internal.serdes.tables

Class ByteArrayDeserializer

java.lang.Object
com.fasterxml.jackson.databind.JsonDeserializer<byte[]>
com.fasterxml.jackson.databind.deser.std.StdDeserializer<byte[]>
com.datastax.astra.internal.serdes.tables.ByteArrayDeserializer
All Implemented Interfaces:
com.fasterxml.jackson.databind.deser.NullValueProvider, com.fasterxml.jackson.databind.deser.ValueInstantiator.Gettable, Serializable
public class ByteArrayDeserializer extends com.fasterxml.jackson.databind.deser.std.StdDeserializer<byte[]>
A custom deserializer for byte arrays that expects the input JSON to be a Base64-encoded string wrapped in a JSON object with a specific field name.

This deserializer processes a JSON object with the following format: 

 {
   "$binary": "base64EncodedString"
 }

Example usage:

 
 ObjectMapper mapper = new ObjectMapper();
 SimpleModule module = new SimpleModule();
 module.addDeserializer(byte[].class, new ByteArrayDeserializer());
 mapper.registerModule(module);

 String json = "{\"$binary\": \"AQID\"}";
 byte[] data = mapper.readValue(json, byte[].class);
See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer

    com.fasterxml.jackson.databind.JsonDeserializer.None

  • Field Summary

    Fields inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

    _valueClass, _valueType, F_MASK_ACCEPT_ARRAYS, F_MASK_INT_COERCIONS

  • Constructor Summary

    Constructors
    Constructor
    Description
    ByteArrayDeserializer()
    Default constructor that specifies the byte[] type for deserialization.

  • Method Summary

    Modifier and Type
    Method
    Description
    byte[]
    deserialize(com.fasterxml.jackson.core.JsonParser p, com.fasterxml.jackson.databind.DeserializationContext ctxt)
    Deserializes a JSON object containing a Base64-encoded string into a byte array.

    Methods inherited from class com.fasterxml.jackson.databind.deser.std.StdDeserializer

    _byteOverflow, _checkBooleanToStringCoercion, _checkCoercionFail, _checkDoubleSpecialValue, _checkFloatSpecialValue, _checkFloatToIntCoercion, _checkFloatToStringCoercion, _checkFromStringCoercion, _checkFromStringCoercion, _checkIntToFloatCoercion, _checkIntToStringCoercion, _checkTextualNull, _checkToStringCoercion, _coerceBooleanFromInt, _coercedTypeDesc, _coercedTypeDesc, _coerceEmptyString, _coerceIntegral, _coerceNullToken, _coerceTextualNull, _deserializeFromArray, _deserializeFromEmpty, _deserializeFromEmptyString, _deserializeFromString, _deserializeWrappedValue, _failDoubleToIntCoercion, _findCoercionFromBlankString, _findCoercionFromEmptyArray, _findCoercionFromEmptyString, _findNullProvider, _hasTextualNull, _intOverflow, _isBlank, _isEmptyOrTextualNull, _isFalse, _isIntNumber, _isNaN, _isNegInf, _isPosInf, _isTrue, _neitherNull, _nonNullNumber, _parseBoolean, _parseBooleanFromInt, _parseBooleanPrimitive, _parseBooleanPrimitive, _parseBytePrimitive, _parseDate, _parseDate, _parseDateFromArray, _parseDouble, _parseDouble, _parseDoublePrimitive, _parseDoublePrimitive, _parseDoublePrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseFloatPrimitive, _parseInteger, _parseInteger, _parseIntPrimitive, _parseIntPrimitive, _parseLong, _parseLong, _parseLongPrimitive, _parseLongPrimitive, _parseShortPrimitive, _parseString, _parseString, _reportFailedNullCoerce, _shortOverflow, _verifyEndArrayForSingle, _verifyNullForPrimitive, _verifyNullForPrimitiveCoercion, _verifyNullForScalarCoercion, _verifyNumberForScalarCoercion, _verifyStringForScalarCoercion, deserializeWithType, findContentNullProvider, findContentNullStyle, findConvertingContentDeserializer, findDeserializer, findFormatFeature, findFormatOverrides, findValueNullProvider, getValueClass, getValueInstantiator, getValueType, getValueType, handledType, handleMissingEndArrayForSingle, handleNestedArrayForSingle, handleUnknownProperty, isDefaultDeserializer, isDefaultKeyDeserializer

    Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer

    deserialize, deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, isCachable, logicalType, replaceDelegatee, supportsUpdate, unwrappingDeserializer

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ByteArrayDeserializer

      public ByteArrayDeserializer()
      Default constructor that specifies the byte[] type for deserialization.

  • Method Details

    • deserialize

      public byte[] deserialize(com.fasterxml.jackson.core.JsonParser p, com.fasterxml.jackson.databind.DeserializationContext ctxt) throws IOException
      Deserializes a JSON object containing a Base64-encoded string into a byte array.
      Specified by:
      deserialize in class com.fasterxml.jackson.databind.JsonDeserializer<byte[]>
      Parameters:
      p - the JsonParser used to parse the JSON input
      ctxt - the DeserializationContext that can be used to handle contextual information
      Returns:
      the deserialized byte array
      Throws:
      IOException - if the JSON structure is invalid or if a decoding error occurs