Package com.amazonaws.athena.connector.lambda.serde

Class BaseDeserializer<T>

java.lang.Object

com.fasterxml.jackson.databind.JsonDeserializer<T>

com.fasterxml.jackson.databind.deser.std.StdDeserializer<T>

com.amazonaws.athena.connector.lambda.serde.BaseDeserializer<T>

All Implemented Interfaces:

VersionedSerDe.Deserializer<T>, com.fasterxml.jackson.databind.deser.NullValueProvider, com.fasterxml.jackson.databind.deser.ValueInstantiator.Gettable, Serializable

Direct Known Subclasses:

BlockSerDe.Deserializer, BlockSerDeV3.Deserializer, BlockSerDeV4.Deserializer, ConstraintsSerDe.Deserializer, ConstraintsSerDeV4.Deserializer, ConstraintsSerDeV5.Deserializer, DelegatingDeserializer, EncryptionKeySerDe.Deserializer, FederatedIdentitySerDe.Deserializer, FunctionNameSerDeV4.Deserializer, LambdaFunctionExceptionSerDe.Deserializer, MarkerSerDe.Deserializer, OptimizationSubTypeSerDeV4.Deserializer, OrderByFieldSerDeV4.Deserializer, RangeSerDe.Deserializer, SchemaSerDe.Deserializer, SchemaSerDeV3.Deserializer, SchemaSerDeV4.Deserializer, SplitSerDe.Deserializer, TableNameSerDe.Deserializer, TypedDeserializer

public abstract class BaseDeserializer<T>
extends com.fasterxml.jackson.databind.deser.std.StdDeserializer<T>
implements VersionedSerDe.Deserializer<T>

See Also:

Serialized Form

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

Modifier	Constructor	Description
protected	BaseDeserializer(Class<T> clazz)

Method Summary

Modifier and Type	Method	Description
protected void	assertFieldName(com.fasterxml.jackson.core.JsonParser jparser, String expectedFieldName)	Helper used to validate an expected field name.
T	deserialize(com.fasterxml.jackson.core.JsonParser jparser, com.fasterxml.jackson.databind.DeserializationContext ctxt)
Object	deserializeWithType(com.fasterxml.jackson.core.JsonParser jp, com.fasterxml.jackson.databind.DeserializationContext ctxt, com.fasterxml.jackson.databind.jsontype.TypeDeserializer typeDeserializer)
abstract T	doDeserialize(com.fasterxml.jackson.core.JsonParser jparser, com.fasterxml.jackson.databind.DeserializationContext ctxt)
protected byte[]	getNextBinaryField(com.fasterxml.jackson.core.JsonParser jparser, String expectedFieldName)	Helper used to extract named byte array fields from the json parser in a streaming fashion.
protected boolean	getNextBoolField(com.fasterxml.jackson.core.JsonParser jparser, String expectedFieldName)	Helper used to extract named boolean fields from the json parser in a streaming fashion.
protected int	getNextIntField(com.fasterxml.jackson.core.JsonParser jparser, String expectedFieldName)	Helper used to extract named integer fields from the json parser in a streaming fashion.
protected long	getNextLongField(com.fasterxml.jackson.core.JsonParser jparser, String expectedFieldName)	Helper used to extract named long fields from the json parser in a streaming fashion.
protected List<String>	getNextStringArray(com.fasterxml.jackson.core.JsonParser jparser, String expectedFieldName)	Helper used to read a list of strings.
protected String	getNextStringField(com.fasterxml.jackson.core.JsonParser jparser, String expectedFieldName)	Helper used to extract named String fields from the json parser in a streaming fashion.
protected Map<String,String>	getNextStringMap(com.fasterxml.jackson.core.JsonParser jparser, String expectedFieldName)	Helper used to read a Map of strings to strings.
protected String	getType(com.fasterxml.jackson.core.JsonParser jparser)	Helper used to parse the type of the object (usually the class name).
protected void	ignoreRestOfObject(com.fasterxml.jackson.core.JsonParser jparser)	Helper used to skip to the end of the current object.
protected void	validateArrayStart(com.fasterxml.jackson.core.JsonParser jparser)	Helper used to validate that an array is starting (open bracket) at the next token.
protected void	validateObjectEnd(com.fasterxml.jackson.core.JsonParser jparser)	Helper used to validate that an object is ending (close brace) at the next token.
protected void	validateObjectStart(com.fasterxml.jackson.core.JsonParser jparser)	Helper used to validate that an object is starting (open brace) at the next token.
protected void	validateObjectStart(com.fasterxml.jackson.core.JsonToken token)	Helper used to validate that an object is starting (open brace) at the provided JsonToken.
protected void	writeStringArray(com.fasterxml.jackson.core.JsonGenerator jgen, String fieldname, Collection<String> values)	Helper used to help serialize a list of strings.

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, 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 Detail

BaseDeserializer

protected BaseDeserializer(Class<T> clazz)

Method Detail

deserialize

public T deserialize(com.fasterxml.jackson.core.JsonParser jparser,
                     com.fasterxml.jackson.databind.DeserializationContext ctxt)
              throws IOException

Specified by:

deserialize in interface VersionedSerDe.Deserializer<T>

Specified by:

deserialize in class com.fasterxml.jackson.databind.JsonDeserializer<T>

Throws:

IOException

deserializeWithType

public Object deserializeWithType(com.fasterxml.jackson.core.JsonParser jp,
                                  com.fasterxml.jackson.databind.DeserializationContext ctxt,
                                  com.fasterxml.jackson.databind.jsontype.TypeDeserializer typeDeserializer)
                           throws IOException

Overrides:

deserializeWithType in class com.fasterxml.jackson.databind.deser.std.StdDeserializer<T>

Throws:

IOException

doDeserialize

public abstract T doDeserialize(com.fasterxml.jackson.core.JsonParser jparser,
                                com.fasterxml.jackson.databind.DeserializationContext ctxt)
                         throws IOException

Specified by:

doDeserialize in interface VersionedSerDe.Deserializer<T>

Throws:

IOException

getNextStringField

protected String getNextStringField(com.fasterxml.jackson.core.JsonParser jparser,
                                    String expectedFieldName)
                             throws IOException

Helper used to extract named String fields from the json parser in a streaming fashion.

Parameters:

jparser - The parser to use for extraction.

expectedFieldName - The expected name of the next field in the stream.

Returns:

The string representation of the requested field.

Throws:

IOException - If there is an error parsing the field.

getNextBoolField

protected boolean getNextBoolField(com.fasterxml.jackson.core.JsonParser jparser,
                                   String expectedFieldName)
                            throws IOException

Helper used to extract named boolean fields from the json parser in a streaming fashion.

Parameters:

jparser - The parser to use for extraction.

expectedFieldName - The expected name of the next field in the stream.

Returns:

The boolean representation of the requested field.

Throws:

IOException - If there is an error parsing the field.

getNextBinaryField

protected byte[] getNextBinaryField(com.fasterxml.jackson.core.JsonParser jparser,
                                    String expectedFieldName)
                             throws IOException

Helper used to extract named byte array fields from the json parser in a streaming fashion.

Parameters:

jparser - The parser to use for extraction.

expectedFieldName - The expected name of the next field in the stream.

Returns:

The byte array representation of the requested field.

Throws:

IOException - If there is an error parsing the field.

getNextIntField

protected int getNextIntField(com.fasterxml.jackson.core.JsonParser jparser,
                              String expectedFieldName)
                       throws IOException

Helper used to extract named integer fields from the json parser in a streaming fashion.

Parameters:

jparser - The parser to use for extraction.

expectedFieldName - The expected name of the next field in the stream.

Returns:

The integer representation of the requested field.

Throws:

IOException - If there is an error parsing the field.

getNextLongField

protected long getNextLongField(com.fasterxml.jackson.core.JsonParser jparser,
                                String expectedFieldName)
                         throws IOException

Helper used to extract named long fields from the json parser in a streaming fashion.

Parameters:

jparser - The parser to use for extraction.

expectedFieldName - The expected name of the next field in the stream.

Returns:

The integer representation of the requested field.

Throws:

IOException - If there is an error parsing the field.

writeStringArray

protected void writeStringArray(com.fasterxml.jackson.core.JsonGenerator jgen,
                                String fieldname,
                                Collection<String> values)
                         throws IOException

Helper used to help serialize a list of strings.

Parameters:

jgen - The json generator to use.

fieldname - The name to associated to the resulting json array.

values - The values to populate the array with.

Throws:

IOException - If an error occurs while writing to the generator.

getNextStringArray

protected List<String> getNextStringArray(com.fasterxml.jackson.core.JsonParser jparser,
                                          String expectedFieldName)
                                   throws IOException

Helper used to read a list of strings.

Parameters:

jparser - The parser to read from.

expectedFieldName - The expected name of the field containing the string array.

Returns:

The contents of the array as a list.

Throws:

IOException - If an error occurs while reading from the parser.

getNextStringMap

protected Map<String,String> getNextStringMap(com.fasterxml.jackson.core.JsonParser jparser,
                                                    String expectedFieldName)
                                             throws IOException

Helper used to read a Map of strings to strings.

Parameters:

jparser - The parser to read from.

expectedFieldName - The expected name of the field containing the string map.

Returns:

The contents of the array as a map.

Throws:

IOException - If an error occurs while reading from the parser.

assertFieldName

protected void assertFieldName(com.fasterxml.jackson.core.JsonParser jparser,
                               String expectedFieldName)
                        throws IOException

Helper used to validate an expected field name.

Parameters:

jparser - The parser to read from.

expectedFieldName - The expected name of the next field.

Throws:

IOException - If an error occurs while reading from the parser.

validateObjectStart

protected void validateObjectStart(com.fasterxml.jackson.core.JsonToken token)
                            throws IOException

Helper used to validate that an object is starting (open brace) at the provided JsonToken.

Parameters:

token - The token expected to be an object start.

Throws:

IOException - If an error occurs while reading from the parser.

validateObjectEnd

protected void validateObjectEnd(com.fasterxml.jackson.core.JsonParser jparser)
                          throws IOException

Helper used to validate that an object is ending (close brace) at the next token.

Parameters:

jparser - The parser to read from.

Throws:

IOException - If an error occurs while reading from the parser.

validateArrayStart

protected void validateArrayStart(com.fasterxml.jackson.core.JsonParser jparser)
                           throws IOException

Helper used to validate that an array is starting (open bracket) at the next token.

Parameters:

jparser - The parser to read from.

Throws:

IOException - If an error occurs while reading from the parser.

validateObjectStart

protected void validateObjectStart(com.fasterxml.jackson.core.JsonParser jparser)
                            throws IOException

Helper used to validate that an object is starting (open brace) at the next token.

Parameters:

jparser - The parser to read from.

Throws:

IOException - If an error occurs while reading from the parser.

getType

protected String getType(com.fasterxml.jackson.core.JsonParser jparser)
                  throws IOException

Helper used to parse the type of the object (usually the class name).

Parameters:

jparser - The parser to use for extraction.

Returns:

The type name of the object being deserialized.

Throws:

IOException - If there is an error parsing the field.

ignoreRestOfObject

protected void ignoreRestOfObject(com.fasterxml.jackson.core.JsonParser jparser)
                           throws IOException

Helper used to skip to the end of the current object. Useful for forwards compatibility.

Parameters:

jparser - The parser to use for extraction.

Throws:

IOException - If there is an error parsing.