/** 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);
}
}
}
}
@Override
public void serialize(Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonGenerationException {
jgen.writeStartObject();
if (!value.isEmpty()) {
if (provider.isEnabled(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS)) {
value = _orderEntries(value);
}
if (_valueSerializer != null) {
serializeFieldsUsing(value, jgen, provider, _valueSerializer);
} else {
serializeFields(value, jgen, provider);
}
}
jgen.writeEndObject();
}
protected void serializeTypedFields(
Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonGenerationException {
final JsonSerializer<Object> keySerializer = _keySerializer;
JsonSerializer<Object> prevValueSerializer = null;
Class<?> prevValueClass = null;
final HashSet<String> ignored = _ignoredEntries;
final boolean skipNulls = !provider.isEnabled(SerializationFeature.WRITE_NULL_MAP_VALUES);
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] also may need to 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> currSerializer;
if (cc == prevValueClass) {
currSerializer = prevValueSerializer;
} else {
currSerializer = provider.findValueSerializer(cc, _property);
prevValueSerializer = currSerializer;
prevValueClass = cc;
}
try {
currSerializer.serializeWithType(valueElem, jgen, provider, _valueTypeSerializer);
} catch (Exception e) {
// [JACKSON-55] Need to add reference information
String keyDesc = "" + keyElem;
wrapAndThrow(provider, e, value, keyDesc);
}
}
}
}
@Override
public void serializeWithType(
Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider, TypeSerializer typeSer)
throws IOException, JsonGenerationException {
typeSer.writeTypePrefixForObject(value, jgen);
if (!value.isEmpty()) {
if (provider.isEnabled(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS)) {
value = _orderEntries(value);
}
if (_valueSerializer != null) {
serializeFieldsUsing(value, jgen, provider, _valueSerializer);
} else {
serializeFields(value, jgen, provider);
}
}
typeSer.writeTypeSuffixForObject(value, jgen);
}
@Override
public void serialize(List<String> value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonGenerationException {
final int len = value.size();
// [JACKSON-805]
if ((len == 1) && provider.isEnabled(SerializationFeature.WRITE_SINGLE_ELEM_ARRAYS_UNWRAPPED)) {
_serializeUnwrapped(value, jgen, provider);
return;
}
jgen.writeStartArray();
if (_serializer == null) {
serializeContents(value, jgen, provider, len);
} else {
serializeUsingCustom(value, jgen, provider, len);
}
jgen.writeEndArray();
}
@Override
public void serialize(Map<?, ?> value, JsonGenerator gen, SerializerProvider provider)
throws IOException {
gen.writeStartObject(value);
if (!value.isEmpty()) {
if (_sortKeys || provider.isEnabled(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS)) {
value = _orderEntries(value, gen, provider);
}
PropertyFilter pf;
if ((_filterId != null) && (pf = findPropertyFilter(provider, _filterId, value)) != null) {
serializeFilteredFields(value, gen, provider, pf, _suppressableValue);
} else if ((_suppressableValue != null) || _suppressNulls) {
serializeOptionalFields(value, gen, provider, _suppressableValue);
} else if (_valueSerializer != null) {
serializeFieldsUsing(value, gen, provider, _valueSerializer);
} else {
serializeFields(value, gen, provider);
}
}
gen.writeEndObject();
}
/**
* Method called to serialize fields, when the value type is statically known, so that value
* serializer is passed and does not need to be fetched from provider.
*/
protected void serializeFieldsUsing(
Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider, JsonSerializer<Object> ser)
throws IOException, JsonGenerationException {
final JsonSerializer<Object> keySerializer = _keySerializer;
final HashSet<String> ignored = _ignoredEntries;
final TypeSerializer typeSer = _valueTypeSerializer;
final boolean skipNulls = !provider.isEnabled(SerializationFeature.WRITE_NULL_MAP_VALUES);
for (Map.Entry<?, ?> entry : value.entrySet()) {
Object valueElem = entry.getValue();
Object keyElem = entry.getKey();
if (keyElem == null) {
provider.findNullKeySerializer(_keyType, _property).serialize(null, jgen, provider);
} else {
// [JACKSON-314] also may need to skip entries with null values
if (skipNulls && valueElem == null) continue;
if (ignored != null && ignored.contains(keyElem)) continue;
keySerializer.serialize(keyElem, jgen, provider);
}
if (valueElem == null) {
provider.defaultSerializeNull(jgen);
} else {
try {
if (typeSer == null) {
ser.serialize(valueElem, jgen, provider);
} else {
ser.serializeWithType(valueElem, jgen, provider, typeSer);
}
} catch (Exception e) {
// [JACKSON-55] Need to add reference information
String keyDesc = "" + keyElem;
wrapAndThrow(provider, e, value, keyDesc);
}
}
}
}
@Override
public void serializeWithType(
Map<?, ?> value, JsonGenerator gen, SerializerProvider provider, TypeSerializer typeSer)
throws IOException {
typeSer.writeTypePrefixForObject(value, gen);
// [databind#631]: Assign current value, to be accessible by custom serializers
gen.setCurrentValue(value);
if (!value.isEmpty()) {
if (_sortKeys || provider.isEnabled(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS)) {
value = _orderEntries(value, gen, provider);
}
PropertyFilter pf;
if ((_filterId != null) && (pf = findPropertyFilter(provider, _filterId, value)) != null) {
serializeFilteredFields(value, gen, provider, pf, _suppressableValue);
} else if ((_suppressableValue != null) || _suppressNulls) {
serializeOptionalFields(value, gen, provider, _suppressableValue);
} else if (_valueSerializer != null) {
serializeFieldsUsing(value, gen, provider, _valueSerializer);
} else {
serializeFields(value, gen, provider);
}
}
typeSer.writeTypeSuffixForObject(value, gen);
}