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org.codehaus.jackson.map.ser.std.ObjectArraySerializer Maven / Gradle / Ivy
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package org.codehaus.jackson.map.ser.std;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Type;
import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.map.BeanProperty;
import org.codehaus.jackson.map.JsonMappingException;
import org.codehaus.jackson.map.JsonSerializer;
import org.codehaus.jackson.map.ResolvableSerializer;
import org.codehaus.jackson.map.SerializerProvider;
import org.codehaus.jackson.map.TypeSerializer;
import org.codehaus.jackson.map.annotate.JacksonStdImpl;
import org.codehaus.jackson.map.ser.impl.PropertySerializerMap;
import org.codehaus.jackson.map.type.ArrayType;
import org.codehaus.jackson.node.ObjectNode;
import org.codehaus.jackson.schema.JsonSchema;
import org.codehaus.jackson.schema.SchemaAware;
import org.codehaus.jackson.type.JavaType;
/**
* Generic serializer for Object arrays (Object[]).
*
* @since 1.9 (moved from 'org.codehaus.jackson.map.ser.impl.ObjectArraySerializer')
*/
@JacksonStdImpl
public class ObjectArraySerializer
extends StdArraySerializers.ArraySerializerBase
implements ResolvableSerializer
{
/**
* Whether we are using static typing (using declared types, ignoring
* runtime type) or not for elements.
*/
protected final boolean _staticTyping;
/**
* Declared type of element entries
*/
protected final JavaType _elementType;
/**
* Value serializer to use, if it can be statically determined.
*
* @since 1.5
*/
protected JsonSerializer _elementSerializer;
/**
* If element type can not be statically determined, mapping from
* runtime type to serializer is handled using this object
*
* @since 1.7
*/
protected PropertySerializerMap _dynamicSerializers;
/**
* @deprecated since 1.8
*/
@Deprecated
public ObjectArraySerializer(JavaType elemType, boolean staticTyping,
TypeSerializer vts, BeanProperty property)
{
this(elemType, staticTyping, vts, property, null);
}
public ObjectArraySerializer(JavaType elemType, boolean staticTyping,
TypeSerializer vts, BeanProperty property, JsonSerializer elementSerializer)
{
super(Object[].class, vts, property);
_elementType = elemType;
_staticTyping = staticTyping;
_dynamicSerializers = PropertySerializerMap.emptyMap();
_elementSerializer = elementSerializer;
}
@Override
public ContainerSerializerBase _withValueTypeSerializer(TypeSerializer vts)
{
return new ObjectArraySerializer(_elementType, _staticTyping, vts, _property, _elementSerializer);
}
@Override
public void serializeContents(Object[] value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonGenerationException
{
final int len = value.length;
if (len == 0) {
return;
}
if (_elementSerializer != null) {
serializeContentsUsing(value, jgen, provider, _elementSerializer);
return;
}
if (_valueTypeSerializer != null) {
serializeTypedContents(value, jgen, provider);
return;
}
int i = 0;
Object elem = null;
try {
PropertySerializerMap serializers = _dynamicSerializers;
for (; i < len; ++i) {
elem = value[i];
if (elem == null) {
provider.defaultSerializeNull(jgen);
continue;
}
Class cc = elem.getClass();
JsonSerializer serializer = serializers.serializerFor(cc);
if (serializer == null) {
// To fix [JACKSON-508]
if (_elementType.hasGenericTypes()) {
serializer = _findAndAddDynamic(serializers,
provider.constructSpecializedType(_elementType, cc), provider);
} else {
serializer = _findAndAddDynamic(serializers, cc, provider);
}
}
serializer.serialize(elem, jgen, provider);
}
} catch (IOException ioe) {
throw ioe;
} catch (Exception e) {
// [JACKSON-55] Need to add reference information
/* 05-Mar-2009, tatu: But one nasty edge is when we get
* StackOverflow: usually due to infinite loop. But that gets
* hidden within an InvocationTargetException...
*/
Throwable t = e;
while (t instanceof InvocationTargetException && t.getCause() != null) {
t = t.getCause();
}
if (t instanceof Error) {
throw (Error) t;
}
throw JsonMappingException.wrapWithPath(t, elem, i);
}
}
public void serializeContentsUsing(Object[] value, JsonGenerator jgen, SerializerProvider provider,
JsonSerializer ser)
throws IOException, JsonGenerationException
{
final int len = value.length;
final TypeSerializer typeSer = _valueTypeSerializer;
int i = 0;
Object elem = null;
try {
for (; i < len; ++i) {
elem = value[i];
if (elem == null) {
provider.defaultSerializeNull(jgen);
continue;
}
if (typeSer == null) {
ser.serialize(elem, jgen, provider);
} else {
ser.serializeWithType(elem, jgen, provider, typeSer);
}
}
} catch (IOException ioe) {
throw ioe;
} catch (Exception e) {
Throwable t = e;
while (t instanceof InvocationTargetException && t.getCause() != null) {
t = t.getCause();
}
if (t instanceof Error) {
throw (Error) t;
}
throw JsonMappingException.wrapWithPath(t, elem, i);
}
}
public void serializeTypedContents(Object[] value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonGenerationException
{
final int len = value.length;
final TypeSerializer typeSer = _valueTypeSerializer;
int i = 0;
Object elem = null;
try {
PropertySerializerMap serializers = _dynamicSerializers;
for (; i < len; ++i) {
elem = value[i];
if (elem == null) {
provider.defaultSerializeNull(jgen);
continue;
}
Class cc = elem.getClass();
JsonSerializer serializer = serializers.serializerFor(cc);
if (serializer == null) {
serializer = _findAndAddDynamic(serializers, cc, provider);
}
serializer.serializeWithType(elem, jgen, provider, typeSer);
}
} catch (IOException ioe) {
throw ioe;
} catch (Exception e) {
Throwable t = e;
while (t instanceof InvocationTargetException && t.getCause() != null) {
t = t.getCause();
}
if (t instanceof Error) {
throw (Error) t;
}
throw JsonMappingException.wrapWithPath(t, elem, i);
}
}
@Override
public JsonNode getSchema(SerializerProvider provider, Type typeHint)
throws JsonMappingException
{
ObjectNode o = createSchemaNode("array", true);
if (typeHint != null) {
JavaType javaType = provider.constructType(typeHint);
if (javaType.isArrayType()) {
Class componentType = ((ArrayType) javaType).getContentType().getRawClass();
// 15-Oct-2010, tatu: We can't serialize plain Object.class; but what should it produce here? Untyped?
if (componentType == Object.class) {
o.put("items", JsonSchema.getDefaultSchemaNode());
} else {
JsonSerializer ser = provider.findValueSerializer(componentType, _property);
JsonNode schemaNode = (ser instanceof SchemaAware) ?
((SchemaAware) ser).getSchema(provider, null) :
JsonSchema.getDefaultSchemaNode();
o.put("items", schemaNode);
}
}
}
return o;
}
/**
* Need to get callback to resolve value serializer, if static typing
* is used (either being forced, or because value type is final)
*/
@Override
public void resolve(SerializerProvider provider)
throws JsonMappingException
{
if (_staticTyping && _elementSerializer == null) {
_elementSerializer = provider.findValueSerializer(_elementType, _property);
}
}
/**
* @since 1.7
*/
protected final JsonSerializer _findAndAddDynamic(PropertySerializerMap map,
Class type, SerializerProvider provider) throws JsonMappingException
{
PropertySerializerMap.SerializerAndMapResult result = map.findAndAddSerializer(type, provider, _property);
// did we get a new map of serializers? If so, start using it
if (map != result.map) {
_dynamicSerializers = result.map;
}
return result.serializer;
}
/**
* @since 1.8
*/
protected final JsonSerializer _findAndAddDynamic(PropertySerializerMap map,
JavaType type, SerializerProvider provider) throws JsonMappingException
{
PropertySerializerMap.SerializerAndMapResult result = map.findAndAddSerializer(type, provider, _property);
// did we get a new map of serializers? If so, start using it
if (map != result.map) {
_dynamicSerializers = result.map;
}
return result.serializer;
}
}
