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nl.open.jwtdependency.com.fasterxml.jackson.databind.ser.DefaultSerializerProvider Maven / Gradle / Ivy
This is a drop in replacement for the auth0 java-jwt library (see https://github.com/auth0/java-jwt). This jar makes sure there are no external dependencies (e.g. fasterXml, Apacha Commons) needed. This is useful when deploying to an application server (e.g. tomcat with Alfreso or Pega).
package com.fasterxml.jackson.databind.ser;
import java.io.IOException;
import java.util.*;
import java.util.concurrent.atomic.AtomicReference;
import com.fasterxml.jackson.annotation.ObjectIdGenerator;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.cfg.HandlerInstantiator;
import com.fasterxml.jackson.databind.introspect.Annotated;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;
import com.fasterxml.jackson.databind.jsonschema.SchemaAware;
import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.fasterxml.jackson.databind.ser.impl.WritableObjectId;
import com.fasterxml.jackson.databind.util.ClassUtil;
/**
* Standard implementation used by {@link ObjectMapper}:
* adds methods only exposed to {@link ObjectMapper},
* as well as constructors.
*
* Note that class is abstract just because it does not
* define {@link #createInstance} method.
*
* Also note that all custom {@link SerializerProvider}
* implementations must sub-class this class: {@link ObjectMapper}
* requires this type, not basic provider type.
*/
public abstract class DefaultSerializerProvider
extends SerializerProvider
implements java.io.Serializable // since 2.1; only because ObjectWriter needs it
{
private static final long serialVersionUID = 1L;
/*
/**********************************************************
/* State, for non-blueprint instances
/**********************************************************
*/
/**
* Per-serialization map Object Ids that have seen so far, iff
* Object Id handling is enabled.
*/
protected transient Map _seenObjectIds;
protected transient ArrayList> _objectIdGenerators;
/**
* Generator used for serialization. Needed mostly for error reporting
* purposes.
*
* @since 2.8
*/
protected transient JsonGenerator _generator;
/*
/**********************************************************
/* Life-cycle
/**********************************************************
*/
protected DefaultSerializerProvider() { super(); }
protected DefaultSerializerProvider(SerializerProvider src,
SerializationConfig config,SerializerFactory f) {
super(src, config, f);
}
protected DefaultSerializerProvider(DefaultSerializerProvider src) {
super(src);
}
/**
* Method that sub-classes need to implement: used to create a non-blueprint instances
* from the blueprint.
* This is needed to retain state during serialization.
*/
public abstract DefaultSerializerProvider createInstance(SerializationConfig config,
SerializerFactory jsf);
/**
* Method needed to ensure that {@link ObjectMapper#copy} will work
* properly; specifically, that caches are cleared, but settings
* will otherwise remain identical; and that no sharing of state
* occurs.
*
* @since 2.5
*/
public DefaultSerializerProvider copy() {
throw new IllegalStateException("DefaultSerializerProvider sub-class not overriding copy()");
}
/*
/**********************************************************
/* Abstract method impls, factory methods
/**********************************************************
*/
@Override
public JsonSerializer serializerInstance(Annotated annotated, Object serDef) throws JsonMappingException
{
if (serDef == null) {
return null;
}
JsonSerializer ser;
if (serDef instanceof JsonSerializer) {
ser = (JsonSerializer) serDef;
} else {
/* Alas, there's no way to force return type of "either class
* X or Y" -- need to throw an exception after the fact
*/
if (!(serDef instanceof Class)) {
throw new IllegalStateException("AnnotationIntrospector returned serializer definition of type "
+serDef.getClass().getName()+"; expected type JsonSerializer or Class instead");
}
Class serClass = (Class)serDef;
// there are some known "no class" markers to consider too:
if (serClass == JsonSerializer.None.class || ClassUtil.isBogusClass(serClass)) {
return null;
}
if (!JsonSerializer.class.isAssignableFrom(serClass)) {
throw new IllegalStateException("AnnotationIntrospector returned Class "
+serClass.getName()+"; expected Class");
}
HandlerInstantiator hi = _config.getHandlerInstantiator();
ser = (hi == null) ? null : hi.serializerInstance(_config, annotated, serClass);
if (ser == null) {
ser = (JsonSerializer) ClassUtil.createInstance(serClass,
_config.canOverrideAccessModifiers());
}
}
return (JsonSerializer) _handleResolvable(ser);
}
/*
/**********************************************************
/* Object Id handling
/**********************************************************
*/
@Override
public WritableObjectId findObjectId(Object forPojo, ObjectIdGenerator generatorType)
{
if (_seenObjectIds == null) {
_seenObjectIds = _createObjectIdMap();
} else {
WritableObjectId oid = _seenObjectIds.get(forPojo);
if (oid != null) {
return oid;
}
}
// Not seen yet; must add an entry, return it. For that, we need generator
ObjectIdGenerator generator = null;
if (_objectIdGenerators == null) {
_objectIdGenerators = new ArrayList>(8);
} else {
for (int i = 0, len = _objectIdGenerators.size(); i < len; ++i) {
ObjectIdGenerator gen = _objectIdGenerators.get(i);
if (gen.canUseFor(generatorType)) {
generator = gen;
break;
}
}
}
if (generator == null) {
generator = generatorType.newForSerialization(this);
_objectIdGenerators.add(generator);
}
WritableObjectId oid = new WritableObjectId(generator);
_seenObjectIds.put(forPojo, oid);
return oid;
}
/**
* Overridable helper method used for creating {@link java.util.Map}
* used for storing mappings from serializable objects to their
* Object Ids.
*
* @since 2.3
*/
protected Map _createObjectIdMap()
{
/* 06-Aug-2013, tatu: We may actually want to use equality,
* instead of identity... so:
*/
if (isEnabled(SerializationFeature.USE_EQUALITY_FOR_OBJECT_ID)) {
return new HashMap();
}
return new IdentityHashMap();
}
/*
/**********************************************************
/* Extended API: simple accesors
/**********************************************************
*/
/**
* Method that can be called to see if this serializer provider
* can find a serializer for an instance of given class.
*
* Note that no Exceptions are thrown, including unchecked ones:
* implementations are to swallow exceptions if necessary.
*/
public boolean hasSerializerFor(Class cls, AtomicReference cause)
{
// 07-Nov-2015, tatu: One special case, Object.class; will work only if
// empty beans are allowed or custom serializer registered. Easiest to
// check here.
if (cls == Object.class) {
if (!_config.isEnabled(SerializationFeature.FAIL_ON_EMPTY_BEANS)) {
return true;
}
}
try {
JsonSerializer ser = _findExplicitUntypedSerializer(cls);
return (ser != null);
} catch (JsonMappingException e) {
if (cause != null) {
cause.set(e);
}
} catch (RuntimeException e) {
if (cause == null) { // earlier behavior
throw e;
}
cause.set(e);
}
return false;
}
/**
* Accessor for the {@link JsonGenerator} currently in use for serializing
* content. Null for blueprint instances; non-null for actual active
* provider instances.
*
* @since 2.8
*/
@Override
public JsonGenerator getGenerator() {
return _generator;
}
/*
/**********************************************************
/* Extended API called by ObjectMapper: value serialization
/**********************************************************
*/
/**
* The method to be called by {@link ObjectMapper} and {@link ObjectWriter}
* for serializing given value, using serializers that
* this provider has access to (via caching and/or creating new serializers
* as need be).
*/
public void serializeValue(JsonGenerator gen, Object value) throws IOException
{
_generator = gen;
if (value == null) {
_serializeNull(gen);
return;
}
Class cls = value.getClass();
// true, since we do want to cache root-level typed serializers (ditto for null property)
final JsonSerializer ser = findTypedValueSerializer(cls, true, null);
// Ok: should we wrap result in an additional property ("root name")?
final boolean wrap;
PropertyName rootName = _config.getFullRootName();
if (rootName == null) { // not explicitly specified
wrap = _config.isEnabled(SerializationFeature.WRAP_ROOT_VALUE);
if (wrap) {
gen.writeStartObject();
PropertyName pname = _config.findRootName(value.getClass());
gen.writeFieldName(pname.simpleAsEncoded(_config));
}
} else if (rootName.isEmpty()) {
wrap = false;
} else { // [JACKSON-764]
// empty String means explicitly disabled; non-empty that it is enabled
wrap = true;
gen.writeStartObject();
gen.writeFieldName(rootName.getSimpleName());
}
try {
ser.serialize(value, gen, this);
if (wrap) {
gen.writeEndObject();
}
} catch (IOException ioe) { // As per [JACKSON-99], pass IOException and subtypes as-is
throw ioe;
} catch (Exception e) { // but wrap RuntimeExceptions, to get path information
String msg = e.getMessage();
if (msg == null) {
msg = "[no message for "+e.getClass().getName()+"]";
}
throw new JsonMappingException(gen, msg, e);
}
}
/**
* The method to be called by {@link ObjectMapper} and {@link ObjectWriter}
* for serializing given value (assumed to be of specified root type,
* instead of runtime type of value),
* using serializers that
* this provider has access to (via caching and/or creating new serializers
* as need be),
*
* @param rootType Type to use for locating serializer to use, instead of actual
* runtime type. Must be actual type, or one of its super types
*/
public void serializeValue(JsonGenerator gen, Object value, JavaType rootType) throws IOException
{
_generator = gen;
if (value == null) {
_serializeNull(gen);
return;
}
// Let's ensure types are compatible at this point
if (!rootType.getRawClass().isAssignableFrom(value.getClass())) {
_reportIncompatibleRootType(value, rootType);
}
// root value, not reached via property:
JsonSerializer ser = findTypedValueSerializer(rootType, true, null);
// Ok: should we wrap result in an additional property ("root name")?
final boolean wrap;
PropertyName rootName = _config.getFullRootName();
if (rootName == null) { // not explicitly specified
wrap = _config.isEnabled(SerializationFeature.WRAP_ROOT_VALUE);
if (wrap) {
gen.writeStartObject();
PropertyName pname = _config.findRootName(value.getClass());
gen.writeFieldName(pname.simpleAsEncoded(_config));
}
} else if (rootName.isEmpty()) {
wrap = false;
} else {
// empty String means explicitly disabled; non-empty that it is enabled
wrap = true;
gen.writeStartObject();
gen.writeFieldName(rootName.getSimpleName());
}
try {
ser.serialize(value, gen, this);
if (wrap) {
gen.writeEndObject();
}
} catch (IOException ioe) { // no wrapping for IO (and derived)
throw ioe;
} catch (Exception e) { // but others do need to be, to get path etc
String msg = e.getMessage();
if (msg == null) {
msg = "[no message for "+e.getClass().getName()+"]";
}
reportMappingProblem(e, msg);
}
}
/**
* The method to be called by {@link ObjectWriter}
* for serializing given value (assumed to be of specified root type,
* instead of runtime type of value), when it may know specific
* {@link JsonSerializer} to use.
*
* @param rootType Type to use for locating serializer to use, instead of actual
* runtime type, if no serializer is passed
* @param ser Root Serializer to use, if not null
*
* @since 2.1
*/
public void serializeValue(JsonGenerator gen, Object value, JavaType rootType,
JsonSerializer ser) throws IOException
{
_generator = gen;
if (value == null) {
_serializeNull(gen);
return;
}
// Let's ensure types are compatible at this point
if ((rootType != null) && !rootType.getRawClass().isAssignableFrom(value.getClass())) {
_reportIncompatibleRootType(value, rootType);
}
// root value, not reached via property:
if (ser == null) {
ser = findTypedValueSerializer(rootType, true, null);
}
// Ok: should we wrap result in an additional property ("root name")?
final boolean wrap;
PropertyName rootName = _config.getFullRootName();
if (rootName == null) { // not explicitly specified
// [JACKSON-163]
wrap = _config.isEnabled(SerializationFeature.WRAP_ROOT_VALUE);
if (wrap) {
gen.writeStartObject();
PropertyName pname = (rootType == null)
? _config.findRootName(value.getClass())
: _config.findRootName(rootType);
gen.writeFieldName(pname.simpleAsEncoded(_config));
}
} else if (rootName.isEmpty()) {
wrap = false;
} else { // [JACKSON-764]
// empty String means explicitly disabled; non-empty that it is enabled
wrap = true;
gen.writeStartObject();
gen.writeFieldName(rootName.getSimpleName());
}
try {
ser.serialize(value, gen, this);
if (wrap) {
gen.writeEndObject();
}
} catch (IOException ioe) { // no wrapping for IO (and derived)
throw ioe;
} catch (Exception e) { // but others do need to be, to get path etc
String msg = e.getMessage();
if (msg == null) {
msg = "[no message for "+e.getClass().getName()+"]";
}
reportMappingProblem(e, msg);
}
}
/**
* Alternate serialization call used for polymorphic types, when {@link TypeSerializer}
* is already known, but the actual serializer may or may not be.
*
* @since 2.6
*/
public void serializePolymorphic(JsonGenerator gen, Object value, JavaType rootType,
JsonSerializer valueSer, TypeSerializer typeSer)
throws IOException
{
_generator = gen;
if (value == null) {
_serializeNull(gen);
return;
}
// Let's ensure types are compatible at this point
if ((rootType != null) && !rootType.getRawClass().isAssignableFrom(value.getClass())) {
_reportIncompatibleRootType(value, rootType);
}
/* 12-Jun-2015, tatu: nominal root type is necessary for Maps at least;
* possibly collections, but can cause problems for other polymorphic
* types. We really need to distinguish between serialization type,
* base type; but right we don't. Hence this check
*/
if (valueSer == null) {
if ((rootType != null) && rootType.isContainerType()) {
valueSer = findValueSerializer(rootType, null);
} else {
valueSer = findValueSerializer(value.getClass(), null);
}
}
final boolean wrap;
PropertyName rootName = _config.getFullRootName();
if (rootName == null) {
wrap = _config.isEnabled(SerializationFeature.WRAP_ROOT_VALUE);
if (wrap) {
gen.writeStartObject();
PropertyName pname = _config.findRootName(value.getClass());
gen.writeFieldName(pname.simpleAsEncoded(_config));
}
} else if (rootName.isEmpty()) {
wrap = false;
} else {
wrap = true;
gen.writeStartObject();
gen.writeFieldName(rootName.getSimpleName());
}
try {
valueSer.serializeWithType(value, gen, this, typeSer);
if (wrap) {
gen.writeEndObject();
}
} catch (IOException ioe) { // no wrapping for IO (and derived)
throw ioe;
} catch (Exception e) { // but others do need to be, to get path etc
String msg = e.getMessage();
if (msg == null) {
msg = "[no message for "+e.getClass().getName()+"]";
}
reportMappingProblem(e, msg);
}
}
/**
* @deprecated since 2.6; remove from 2.7 or later
*/
@Deprecated
public void serializePolymorphic(JsonGenerator gen, Object value, TypeSerializer typeSer)
throws IOException
{
JavaType t = (value == null) ? null : _config.constructType(value.getClass());
serializePolymorphic(gen, value, t, null, typeSer);
}
/**
* Helper method called when root value to serialize is null
*
* @since 2.3
*/
protected void _serializeNull(JsonGenerator gen) throws IOException
{
JsonSerializer ser = getDefaultNullValueSerializer();
try {
ser.serialize(null, gen, this);
} catch (IOException ioe) { // no wrapping for IO (and derived)
throw ioe;
} catch (Exception e) { // but others do need to be, to get path etc
String msg = e.getMessage();
if (msg == null) {
msg = "[no message for "+e.getClass().getName()+"]";
}
reportMappingProblem(e, msg);
}
}
/*
/********************************************************
/* Access to caching details
/********************************************************
*/
/**
* Method that can be used to determine how many serializers this
* provider is caching currently
* (if it does caching: default implementation does)
* Exact count depends on what kind of serializers get cached;
* default implementation caches all serializers, including ones that
* are eagerly constructed (for optimal access speed)
*
* The main use case for this method is to allow conditional flushing of
* serializer cache, if certain number of entries is reached.
*/
public int cachedSerializersCount() {
return _serializerCache.size();
}
/**
* Method that will drop all serializers currently cached by this provider.
* This can be used to remove memory usage (in case some serializers are
* only used once or so), or to force re-construction of serializers after
* configuration changes for mapper than owns the provider.
*/
public void flushCachedSerializers() {
_serializerCache.flush();
}
/*
/**********************************************************
/* Extended API called by ObjectMapper: other
/**********************************************************
*/
/**
* The method to be called by {@link ObjectMapper} and {@link ObjectWriter}
* to to expose the format of the given to to the given visitor
*
* @param javaType The type for which to generate format
* @param visitor the visitor to accept the format
*/
public void acceptJsonFormatVisitor(JavaType javaType, JsonFormatVisitorWrapper visitor)
throws JsonMappingException
{
if (javaType == null) {
throw new IllegalArgumentException("A class must be provided");
}
/* no need for embedded type information for JSON schema generation (all
* type information it needs is accessible via "untyped" serializer)
*/
visitor.setProvider(this);
findValueSerializer(javaType, null).acceptJsonFormatVisitor(visitor, javaType);
}
/**
* The method to be called by {@link ObjectMapper}
* to generate JSON schema for
* given type.
*
* @param type The type for which to generate schema
*
* @deprecated Should not be used any more
*/
@Deprecated // since 2.6
public com.fasterxml.jackson.databind.jsonschema.JsonSchema generateJsonSchema(Class type)
throws JsonMappingException
{
if (type == null) {
throw new IllegalArgumentException("A class must be provided");
}
/* no need for embedded type information for JSON schema generation (all
* type information it needs is accessible via "untyped" serializer)
*/
JsonSerializer ser = findValueSerializer(type, null);
JsonNode schemaNode = (ser instanceof SchemaAware) ?
((SchemaAware) ser).getSchema(this, null) : com.fasterxml.jackson.databind.jsonschema.JsonSchema.getDefaultSchemaNode();
if (!(schemaNode instanceof ObjectNode)) {
throw new IllegalArgumentException("Class " + type.getName()
+" would not be serialized as a JSON object and therefore has no schema");
}
return new com.fasterxml.jackson.databind.jsonschema.JsonSchema((ObjectNode) schemaNode);
}
/*
/**********************************************************
/* Helper classes
/**********************************************************
*/
/**
* Concrete implementation that defines factory method(s),
* defined as final.
*/
public final static class Impl extends DefaultSerializerProvider {
private static final long serialVersionUID = 1L;
public Impl() { super(); }
public Impl(Impl src) { super(src); }
protected Impl(SerializerProvider src, SerializationConfig config,
SerializerFactory f) {
super(src, config, f);
}
@Override
public DefaultSerializerProvider copy()
{
if (getClass() != Impl.class) {
return super.copy();
}
return new Impl(this);
}
@Override
public Impl createInstance(SerializationConfig config, SerializerFactory jsf) {
return new Impl(this, config, jsf);
}
}
}
