/**
* 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.
*/
public void serializeFieldsUsing(
Map<?, ?> value, JsonGenerator gen, SerializerProvider provider, JsonSerializer<Object> ser)
throws IOException {
final JsonSerializer<Object> keySerializer = _keySerializer;
final Set<String> ignored = _ignoredEntries;
final TypeSerializer typeSer = _valueTypeSerializer;
for (Map.Entry<?, ?> entry : value.entrySet()) {
Object keyElem = entry.getKey();
if (ignored != null && ignored.contains(keyElem)) continue;
if (keyElem == null) {
provider.findNullKeySerializer(_keyType, _property).serialize(null, gen, provider);
} else {
keySerializer.serialize(keyElem, gen, provider);
}
final Object valueElem = entry.getValue();
if (valueElem == null) {
provider.defaultSerializeNull(gen);
} else {
try {
if (typeSer == null) {
ser.serialize(valueElem, gen, provider);
} else {
ser.serializeWithType(valueElem, gen, provider, typeSer);
}
} catch (Exception e) {
wrapAndThrow(provider, e, value, String.valueOf(keyElem));
}
}
}
}
/**
* Helper method used when we have a JSON Filter to use for potentially filtering out Map entries.
*
* @since 2.5
*/
public void serializeFilteredFields(
Map<?, ?> value,
JsonGenerator gen,
SerializerProvider provider,
PropertyFilter filter,
Object suppressableValue) // since 2.5
throws IOException {
final Set<String> ignored = _ignoredEntries;
final MapProperty prop = new MapProperty(_valueTypeSerializer, _property);
final boolean checkEmpty = (MARKER_FOR_EMPTY == suppressableValue);
for (Map.Entry<?, ?> entry : value.entrySet()) {
// First, serialize key; unless ignorable by key
final Object keyElem = entry.getKey();
if (ignored != null && ignored.contains(keyElem)) continue;
JsonSerializer<Object> keySerializer;
if (keyElem == null) {
keySerializer = provider.findNullKeySerializer(_keyType, _property);
} else {
keySerializer = _keySerializer;
}
// or by value; nulls often suppressed
final Object valueElem = entry.getValue();
JsonSerializer<Object> valueSer;
// And then value
if (valueElem == null) {
if (_suppressNulls) {
continue;
}
valueSer = provider.getDefaultNullValueSerializer();
} else {
valueSer = _valueSerializer;
if (valueSer == null) {
valueSer = _findSerializer(provider, valueElem);
}
// also may need to skip non-empty values:
if (checkEmpty) {
if (valueSer.isEmpty(provider, valueElem)) {
continue;
}
} else if (suppressableValue != null) {
if (suppressableValue.equals(valueElem)) {
continue;
}
}
}
// and with that, ask filter to handle it
prop.reset(keyElem, keySerializer, valueSer);
try {
filter.serializeAsField(valueElem, gen, provider, prop);
} catch (Exception e) {
wrapAndThrow(provider, e, value, String.valueOf(keyElem));
}
}
}
/** Serialization method called when exclusion filtering needs to be applied. */
public void serializeOptionalFields(
Map<?, ?> value, JsonGenerator gen, SerializerProvider provider, Object suppressableValue)
throws IOException {
// If value type needs polymorphic type handling, some more work needed:
if (_valueTypeSerializer != null) {
serializeTypedFields(value, gen, provider, suppressableValue);
return;
}
final Set<String> ignored = _ignoredEntries;
final boolean checkEmpty = (MARKER_FOR_EMPTY == suppressableValue);
for (Map.Entry<?, ?> entry : value.entrySet()) {
// First find key serializer
final Object keyElem = entry.getKey();
JsonSerializer<Object> keySerializer;
if (keyElem == null) {
keySerializer = provider.findNullKeySerializer(_keyType, _property);
} else {
if (ignored != null && ignored.contains(keyElem)) continue;
keySerializer = _keySerializer;
}
// Then value serializer
final Object valueElem = entry.getValue();
JsonSerializer<Object> valueSer;
if (valueElem == null) {
if (_suppressNulls) { // all suppressions include null-suppression
continue;
}
valueSer = provider.getDefaultNullValueSerializer();
} else {
valueSer = _valueSerializer;
if (valueSer == null) {
valueSer = _findSerializer(provider, valueElem);
}
// also may need to skip non-empty values:
if (checkEmpty) {
if (valueSer.isEmpty(provider, valueElem)) {
continue;
}
} else if (suppressableValue != null) {
if (suppressableValue.equals(valueElem)) {
continue;
}
}
}
// and then serialize, if all went well
try {
keySerializer.serialize(keyElem, gen, provider);
valueSer.serialize(valueElem, gen, provider);
} catch (Exception e) {
wrapAndThrow(provider, e, value, String.valueOf(keyElem));
}
}
}
/** 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);
}
}
}
}
/** @since 2.5 */
public void serializeTypedFields(
Map<?, ?> value,
JsonGenerator gen,
SerializerProvider provider,
Object suppressableValue) // since 2.5
throws IOException {
final Set<String> ignored = _ignoredEntries;
final boolean checkEmpty = (MARKER_FOR_EMPTY == suppressableValue);
for (Map.Entry<?, ?> entry : value.entrySet()) {
Object keyElem = entry.getKey();
JsonSerializer<Object> keySerializer;
if (keyElem == null) {
keySerializer = provider.findNullKeySerializer(_keyType, _property);
} else {
// One twist: is entry ignorable? If so, skip
if (ignored != null && ignored.contains(keyElem)) continue;
keySerializer = _keySerializer;
}
final Object valueElem = entry.getValue();
// And then value
JsonSerializer<Object> valueSer;
if (valueElem == null) {
if (_suppressNulls) { // all suppression include null suppression
continue;
}
valueSer = provider.getDefaultNullValueSerializer();
} else {
valueSer = _valueSerializer;
if (valueSer == null) {
valueSer = _findSerializer(provider, valueElem);
}
// also may need to skip non-empty values:
if (checkEmpty) {
if (valueSer.isEmpty(provider, valueElem)) {
continue;
}
} else if (suppressableValue != null) {
if (suppressableValue.equals(valueElem)) {
continue;
}
}
}
keySerializer.serialize(keyElem, gen, provider);
try {
valueSer.serializeWithType(valueElem, gen, provider, _valueTypeSerializer);
} catch (Exception e) {
wrapAndThrow(provider, e, value, String.valueOf(keyElem));
}
}
}
public void testSimpleKeyDeser() throws Exception {
ObjectMapper mapper = new ObjectMapper();
SimpleModule module = new SimpleModule("test", Version.unknownVersion());
module.addKeyDeserializer(String.class, new ContextualDeser("???"));
mapper.registerModule(module);
MapBean result = mapper.readValue("{\"map\":{\"a\":3}}", MapBean.class);
Map<String, Integer> map = result.map;
assertNotNull(map);
assertEquals(1, map.size());
Map.Entry<String, Integer> entry = map.entrySet().iterator().next();
assertEquals(Integer.valueOf(3), entry.getValue());
assertEquals("map:a", entry.getKey());
}
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);
}
}
}
}
/**
* Method called locate all members used for value injection (if any), constructor {@link
* com.fasterxml.jackson.databind.deser.impl.ValueInjector} instances, and add them to builder.
*/
protected void addInjectables(
DeserializationContext ctxt, BeanDescription beanDesc, BeanDeserializerBuilder builder)
throws JsonMappingException {
Map<Object, AnnotatedMember> raw = beanDesc.findInjectables();
if (raw != null) {
boolean fixAccess = ctxt.canOverrideAccessModifiers();
for (Map.Entry<Object, AnnotatedMember> entry : raw.entrySet()) {
AnnotatedMember m = entry.getValue();
if (fixAccess) {
m.fixAccess(); // to ensure we can call it
}
builder.addInjectable(
m.getName(),
beanDesc.resolveType(m.getGenericType()),
beanDesc.getClassAnnotations(),
m,
entry.getKey());
}
}
}
/**
* Method that will find if bean has any managed- or back-reference properties, and if so add them
* to bean, to be linked during resolution phase.
*/
protected void addReferenceProperties(
DeserializationContext ctxt, BeanDescription beanDesc, BeanDeserializerBuilder builder)
throws JsonMappingException {
// and then back references, not necessarily found as regular properties
Map<String, AnnotatedMember> refs = beanDesc.findBackReferenceProperties();
if (refs != null) {
for (Map.Entry<String, AnnotatedMember> en : refs.entrySet()) {
String name = en.getKey();
AnnotatedMember m = en.getValue();
Type genericType;
if (m instanceof AnnotatedMethod) {
genericType = ((AnnotatedMethod) m).getGenericParameterType(0);
} else {
genericType = m.getRawType();
}
SimpleBeanPropertyDefinition propDef = new SimpleBeanPropertyDefinition(m);
builder.addBackReferenceProperty(
name, constructSettableProperty(ctxt, beanDesc, propDef, genericType));
}
}
}
protected Map<?, ?> _orderEntries(Map<?, ?> input, JsonGenerator gen, SerializerProvider provider)
throws IOException {
// minor optimization: may already be sorted?
if (input instanceof SortedMap<?, ?>) {
return input;
}
// [databind#1411]: TreeMap does not like null key...
if (input.containsKey(null)) {
TreeMap<Object, Object> result = new TreeMap<Object, Object>();
for (Map.Entry<?, ?> entry : input.entrySet()) {
Object key = entry.getKey();
if (key == null) {
_writeNullKeyedEntry(gen, provider, entry.getValue());
continue;
}
result.put(key, entry.getValue());
}
return result;
}
return new TreeMap<Object, Object>(input);
}
/**
* General-purpose serialization for contents, where we do not necessarily know the value
* serialization, but we do know that no value suppression is needed (which simplifies processing
* a bit)
*/
public void serializeFields(Map<?, ?> value, JsonGenerator gen, SerializerProvider provider)
throws IOException {
// If value type needs polymorphic type handling, some more work needed:
if (_valueTypeSerializer != null) {
serializeTypedFields(value, gen, provider, null);
return;
}
final JsonSerializer<Object> keySerializer = _keySerializer;
final Set<String> ignored = _ignoredEntries;
Object keyElem = null;
try {
for (Map.Entry<?, ?> entry : value.entrySet()) {
Object valueElem = entry.getValue();
// First, serialize key
keyElem = entry.getKey();
if (keyElem == null) {
provider.findNullKeySerializer(_keyType, _property).serialize(null, gen, provider);
} else {
// One twist: is entry ignorable? If so, skip
if ((ignored != null) && ignored.contains(keyElem)) {
continue;
}
keySerializer.serialize(keyElem, gen, provider);
}
// And then value
if (valueElem == null) {
provider.defaultSerializeNull(gen);
continue;
}
JsonSerializer<Object> serializer = _valueSerializer;
if (serializer == null) {
serializer = _findSerializer(provider, valueElem);
}
serializer.serialize(valueElem, gen, provider);
}
} catch (Exception e) { // Add reference information
wrapAndThrow(provider, e, value, String.valueOf(keyElem));
}
}
/**
* 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);
}
}
}
}
