@Override public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException { // May need to resolve types for delegate-based creators: JsonDeserializer<Object> delegate = null; if (_valueInstantiator != null) { AnnotatedWithParams delegateCreator = _valueInstantiator.getDelegateCreator(); if (delegateCreator != null) { JavaType delegateType = _valueInstantiator.getDelegateType(ctxt.getConfig()); delegate = findDeserializer(ctxt, delegateType, property); } } JsonDeserializer<?> valueDeser = _valueDeserializer; if (valueDeser == null) { // #125: May have a content converter valueDeser = findConvertingContentDeserializer(ctxt, property, valueDeser); if (valueDeser == null) { // And we may also need to get deserializer for String valueDeser = ctxt.findContextualValueDeserializer(_collectionType.getContentType(), property); } } else { // if directly assigned, probably not yet contextual, so: valueDeser = ctxt.handleSecondaryContextualization(valueDeser, property); } if (isDefaultDeserializer(valueDeser)) { valueDeser = null; } return withResolved(delegate, valueDeser); }
/** Method called to serialize fields, when the value type is not statically known. */ public void serializeFields(Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonGenerationException { // If value type needs polymorphic type handling, some more work needed: if (_valueTypeSerializer != null) { serializeTypedFields(value, jgen, provider); return; } final JsonSerializer<Object> keySerializer = _keySerializer; final HashSet<String> ignored = _ignoredEntries; final boolean skipNulls = !provider.isEnabled(SerializationFeature.WRITE_NULL_MAP_VALUES); PropertySerializerMap serializers = _dynamicValueSerializers; for (Map.Entry<?, ?> entry : value.entrySet()) { Object valueElem = entry.getValue(); // First, serialize key Object keyElem = entry.getKey(); if (keyElem == null) { provider.findNullKeySerializer(_keyType, _property).serialize(null, jgen, provider); } else { // [JACKSON-314] skip entries with null values? if (skipNulls && valueElem == null) continue; // One twist: is entry ignorable? If so, skip if (ignored != null && ignored.contains(keyElem)) continue; keySerializer.serialize(keyElem, jgen, provider); } // And then value if (valueElem == null) { provider.defaultSerializeNull(jgen); } else { Class<?> cc = valueElem.getClass(); JsonSerializer<Object> serializer = serializers.serializerFor(cc); if (serializer == null) { if (_valueType.hasGenericTypes()) { serializer = _findAndAddDynamic( serializers, provider.constructSpecializedType(_valueType, cc), provider); } else { serializer = _findAndAddDynamic(serializers, cc, provider); } serializers = _dynamicValueSerializers; } try { serializer.serialize(valueElem, jgen, provider); } catch (Exception e) { // [JACKSON-55] Need to add reference information String keyDesc = "" + keyElem; wrapAndThrow(provider, e, value, keyDesc); } } } }
public EnumMapDeserializer( JavaType mapType, KeyDeserializer keyDeserializer, JsonDeserializer<?> valueDeser, TypeDeserializer valueTypeDeser) { super(mapType); _mapType = mapType; _enumClass = mapType.getKeyType().getRawClass(); _keyDeserializer = keyDeserializer; _valueDeserializer = (JsonDeserializer<Object>) valueDeser; _valueTypeDeserializer = valueTypeDeser; }
/** @since 2.8 */ public static MapSerializer construct( Set<String> ignoredEntries, JavaType mapType, boolean staticValueType, TypeSerializer vts, JsonSerializer<Object> keySerializer, JsonSerializer<Object> valueSerializer, Object filterId) { JavaType keyType, valueType; if (mapType == null) { keyType = valueType = UNSPECIFIED_TYPE; } else { keyType = mapType.getKeyType(); valueType = mapType.getContentType(); } // If value type is final, it's same as forcing static value typing: if (!staticValueType) { staticValueType = (valueType != null && valueType.isFinal()); } else { // also: Object.class can not be handled as static, ever if (valueType.getRawClass() == Object.class) { staticValueType = false; } } MapSerializer ser = new MapSerializer( ignoredEntries, keyType, valueType, staticValueType, vts, keySerializer, valueSerializer); if (filterId != null) { ser = ser.withFilterId(filterId); } return ser; }
private final JsonSerializer<Object> _findSerializer(SerializerProvider provider, Object value) throws JsonMappingException { final Class<?> cc = value.getClass(); JsonSerializer<Object> valueSer = _dynamicValueSerializers.serializerFor(cc); if (valueSer != null) { return valueSer; } if (_valueType.hasGenericTypes()) { return _findAndAddDynamic( _dynamicValueSerializers, provider.constructSpecializedType(_valueType, cc), provider); } return _findAndAddDynamic(_dynamicValueSerializers, cc, provider); }
@Override public EnumMap<?, ?> deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException { // Ok: must point to START_OBJECT if (jp.getCurrentToken() != JsonToken.START_OBJECT) { return _deserializeFromEmpty(jp, ctxt); } EnumMap result = constructMap(); final JsonDeserializer<Object> valueDes = _valueDeserializer; final TypeDeserializer typeDeser = _valueTypeDeserializer; while ((jp.nextToken()) == JsonToken.FIELD_NAME) { String keyName = jp.getCurrentName(); // just for error message // but we need to let key deserializer handle it separately, nonetheless Enum<?> key = (Enum<?>) _keyDeserializer.deserializeKey(keyName, ctxt); if (key == null) { if (!ctxt.isEnabled(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_AS_NULL)) { throw ctxt.weirdStringException( keyName, _enumClass, "value not one of declared Enum instance names for " + _mapType.getKeyType()); } /* 24-Mar-2012, tatu: Null won't work as a key anyway, so let's * just skip the entry then. But we must skip the value as well, if so. */ jp.nextToken(); jp.skipChildren(); continue; } // And then the value... JsonToken t = jp.nextToken(); /* note: MUST check for nulls separately: deserializers will * not handle them (and maybe fail or return bogus data) */ Object value; try { if (t == JsonToken.VALUE_NULL) { value = valueDes.getNullValue(ctxt); } else if (typeDeser == null) { value = valueDes.deserialize(jp, ctxt); } else { value = valueDes.deserializeWithType(jp, ctxt, typeDeser); } } catch (Exception e) { wrapAndThrow(e, result, keyName); return null; } result.put(key, value); } return result; }
/** * Method called to finalize setup of this deserializer, when it is known for which property * deserializer is needed for. */ @Override public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) throws JsonMappingException { // note: instead of finding key deserializer, with enums we actually // work with regular deserializers (less code duplication; but not // quite as clean as it ought to be) KeyDeserializer kd = _keyDeserializer; if (kd == null) { kd = ctxt.findKeyDeserializer(_mapType.getKeyType(), property); } JsonDeserializer<?> vd = _valueDeserializer; final JavaType vt = _mapType.getContentType(); if (vd == null) { vd = ctxt.findContextualValueDeserializer(vt, property); } else { // if directly assigned, probably not yet contextual, so: vd = ctxt.handleSecondaryContextualization(vd, property, vt); } TypeDeserializer vtd = _valueTypeDeserializer; if (vtd != null) { vtd = vtd.forProperty(property); } return withResolved(kd, vd, vtd); }
public static MapSerializer construct( String[] ignoredList, JavaType mapType, boolean staticValueType, TypeSerializer vts, JsonSerializer<Object> keySerializer, JsonSerializer<Object> valueSerializer) { HashSet<String> ignoredEntries = toSet(ignoredList); JavaType keyType, valueType; if (mapType == null) { keyType = valueType = UNSPECIFIED_TYPE; } else { keyType = mapType.getKeyType(); valueType = mapType.getContentType(); } // If value type is final, it's same as forcing static value typing: if (!staticValueType) { staticValueType = (valueType != null && valueType.isFinal()); } return new MapSerializer( ignoredEntries, keyType, valueType, staticValueType, vts, keySerializer, valueSerializer); }
/** * Helper method called when current token is no START_ARRAY. Will either throw an exception, or * try to handle value as if member of implicit array, depending on configuration. */ private final Collection<String> handleNonArray( JsonParser jp, DeserializationContext ctxt, Collection<String> result) throws IOException { // [JACKSON-526]: implicit arrays from single values? if (!ctxt.isEnabled(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY)) { throw ctxt.mappingException(_collectionType.getRawClass()); } // Strings are one of "native" (intrinsic) types, so there's never type deserializer involved JsonDeserializer<String> valueDes = _valueDeserializer; JsonToken t = jp.getCurrentToken(); String value; if (t == JsonToken.VALUE_NULL) { value = (valueDes == null) ? null : valueDes.getNullValue(); } else { value = (valueDes == null) ? _parseString(jp, ctxt) : valueDes.deserialize(jp, ctxt); } result.add(value); return result; }
@Override public JavaType getContentType() { return _mapType.getContentType(); }
@Override public JavaType getContentType() { return _collectionType.getContentType(); }
@Override public JsonSerializer<?> createContextual(SerializerProvider provider, BeanProperty property) throws JsonMappingException { JsonSerializer<?> ser = null; JsonSerializer<?> keySer = null; final AnnotationIntrospector intr = provider.getAnnotationIntrospector(); final AnnotatedMember propertyAcc = (property == null) ? null : property.getMember(); // First: if we have a property, may have property-annotation overrides if ((propertyAcc != null) && (intr != null)) { Object serDef = intr.findKeySerializer(propertyAcc); if (serDef != null) { keySer = provider.serializerInstance(propertyAcc, serDef); } serDef = intr.findContentSerializer(propertyAcc); if (serDef != null) { ser = provider.serializerInstance(propertyAcc, serDef); } } if (ser == null) { ser = _valueSerializer; } // [databind#124]: May have a content converter ser = findContextualConvertingSerializer(provider, property, ser); if (ser == null) { // 30-Sep-2012, tatu: One more thing -- if explicit content type is annotated, // we can consider it a static case as well. // 20-Aug-2013, tatu: Need to avoid trying to access serializer for java.lang.Object tho if (_valueTypeIsStatic && !_valueType.isJavaLangObject()) { ser = provider.findValueSerializer(_valueType, property); } } if (keySer == null) { keySer = _keySerializer; } if (keySer == null) { keySer = provider.findKeySerializer(_keyType, property); } else { keySer = provider.handleSecondaryContextualization(keySer, property); } Set<String> ignored = _ignoredEntries; boolean sortKeys = false; if ((intr != null) && (propertyAcc != null)) { JsonIgnoreProperties.Value ignorals = intr.findPropertyIgnorals(propertyAcc); if (ignorals != null) { Set<String> newIgnored = ignorals.findIgnoredForSerialization(); if ((newIgnored != null) && !newIgnored.isEmpty()) { ignored = (ignored == null) ? new HashSet<String>() : new HashSet<String>(ignored); for (String str : newIgnored) { ignored.add(str); } } } Boolean b = intr.findSerializationSortAlphabetically(propertyAcc); sortKeys = (b != null) && b.booleanValue(); } JsonFormat.Value format = findFormatOverrides(provider, property, Map.class); if (format != null) { Boolean B = format.getFeature(JsonFormat.Feature.WRITE_SORTED_MAP_ENTRIES); if (B != null) { sortKeys = B.booleanValue(); } } MapSerializer mser = withResolved(property, keySer, ser, ignored, sortKeys); // [databind#307]: allow filtering if (property != null) { AnnotatedMember m = property.getMember(); if (m != null) { Object filterId = intr.findFilterId(m); if (filterId != null) { mser = mser.withFilterId(filterId); } } JsonInclude.Value inclV = property.findPropertyInclusion(provider.getConfig(), null); if (inclV != null) { JsonInclude.Include incl = inclV.getContentInclusion(); if (incl != JsonInclude.Include.USE_DEFAULTS) { Object valueToSuppress; boolean suppressNulls; switch (incl) { case NON_DEFAULT: valueToSuppress = BeanUtil.getDefaultValue(_valueType); suppressNulls = true; if (valueToSuppress != null) { if (valueToSuppress.getClass().isArray()) { valueToSuppress = ArrayBuilders.getArrayComparator(valueToSuppress); } } break; case NON_ABSENT: suppressNulls = true; valueToSuppress = _valueType.isReferenceType() ? MARKER_FOR_EMPTY : null; break; case NON_EMPTY: suppressNulls = true; valueToSuppress = MARKER_FOR_EMPTY; break; case CUSTOM: valueToSuppress = provider.includeFilterInstance(null, inclV.getContentFilter()); if (valueToSuppress == null) { // is this legal? suppressNulls = true; } else { suppressNulls = provider.includeFilterSuppressNulls(valueToSuppress); } break; case NON_NULL: valueToSuppress = null; suppressNulls = true; break; case ALWAYS: // default default: valueToSuppress = null; // 30-Sep-2016, tatu: Should not need to check global flags here, // if inclusion forced to be ALWAYS suppressNulls = false; break; } mser = mser.withContentInclusion(valueToSuppress, suppressNulls); } } } return mser; }