public void testJackson744() throws Exception { BeanDescription beanDesc = mapper.getDeserializationConfig().introspect(mapper.constructType(Issue744Bean.class)); assertNotNull(beanDesc); AnnotatedMethod setter = beanDesc.findAnySetter(); assertNotNull(setter); }
/** Method that will construct a regular bean property setter using the given setter method. */ protected SettableBeanProperty constructSetterlessProperty( DeserializationContext ctxt, BeanDescription beanDesc, BeanPropertyDefinition propDef) throws JsonMappingException { final AnnotatedMethod getter = propDef.getGetter(); // need to ensure it is callable now: if (ctxt.canOverrideAccessModifiers()) { getter.fixAccess(); } /* 26-Jan-2012, tatu: Alas, this complication is still needed to handle * (or at least work around) local type declarations... */ JavaType type = getter.getType(beanDesc.bindingsForBeanType()); /* First: does the Method specify the deserializer to use? * If so, let's use it. */ JsonDeserializer<Object> propDeser = findDeserializerFromAnnotation(ctxt, getter); type = modifyTypeByAnnotation(ctxt, getter, type); TypeDeserializer typeDeser = type.getTypeHandler(); SettableBeanProperty prop = new SetterlessProperty(propDef, type, typeDeser, beanDesc.getClassAnnotations(), getter); if (propDeser != null) { prop = prop.withValueDeserializer(propDeser); } return prop; }
/** * Method called to construct fallback {@link SettableAnyProperty} for handling unknown bean * properties, given a method that has been designated as such setter. */ protected SettableAnyProperty constructAnySetter( DeserializationContext ctxt, BeanDescription beanDesc, AnnotatedMethod setter) throws JsonMappingException { if (ctxt.canOverrideAccessModifiers()) { setter.fixAccess(); // to ensure we can call it } // we know it's a 2-arg method, second arg is the value JavaType type = beanDesc.bindingsForBeanType().resolveType(setter.getGenericParameterType(1)); BeanProperty.Std property = new BeanProperty.Std(setter.getName(), type, beanDesc.getClassAnnotations(), setter); type = resolveType(ctxt, beanDesc, type, setter); /* AnySetter can be annotated with @JsonClass (etc) just like a * regular setter... so let's see if those are used. * Returns null if no annotations, in which case binding will * be done at a later point. */ JsonDeserializer<Object> deser = findDeserializerFromAnnotation(ctxt, setter); if (deser != null) { return new SettableAnyProperty(property, setter, type, deser); } /* Otherwise, method may specify more specific (sub-)class for * value (no need to check if explicit deser was specified): */ type = modifyTypeByAnnotation(ctxt, setter, type); return new SettableAnyProperty(property, setter, type, null); }
/** * Method that will construct a regular bean property setter using the given setter method. * * @return Property constructed, if any; or null to indicate that there should be no property * based on given definitions. */ protected SettableBeanProperty constructSettableProperty( DeserializationContext ctxt, BeanDescription beanDesc, BeanPropertyDefinition propDef, Type jdkType) throws JsonMappingException { // need to ensure method is callable (for non-public) AnnotatedMember mutator = propDef.getMutator(); if (ctxt.canOverrideAccessModifiers()) { mutator.fixAccess(); } // note: this works since we know there's exactly one argument for methods JavaType t0 = beanDesc.resolveType(jdkType); BeanProperty.Std property = new BeanProperty.Std(propDef.getName(), t0, beanDesc.getClassAnnotations(), mutator); JavaType type = resolveType(ctxt, beanDesc, t0, mutator); // did type change? if (type != t0) { property = property.withType(type); } /* First: does the Method specify the deserializer to use? * If so, let's use it. */ JsonDeserializer<Object> propDeser = findDeserializerFromAnnotation(ctxt, mutator); type = modifyTypeByAnnotation(ctxt, mutator, type); TypeDeserializer typeDeser = type.getTypeHandler(); SettableBeanProperty prop; if (mutator instanceof AnnotatedMethod) { prop = new MethodProperty( propDef, type, typeDeser, beanDesc.getClassAnnotations(), (AnnotatedMethod) mutator); } else { prop = new FieldProperty( propDef, type, typeDeser, beanDesc.getClassAnnotations(), (AnnotatedField) mutator); } if (propDeser != null) { prop = prop.withValueDeserializer(propDeser); } // [JACKSON-235]: need to retain name of managed forward references: AnnotationIntrospector.ReferenceProperty ref = propDef.findReferenceType(); if (ref != null && ref.isManagedReference()) { prop.setManagedReferenceName(ref.getName()); } return prop; }
/** * Helper method that will check whether given raw type is marked as always ignorable (for purpose * of ignoring properties with type) */ protected boolean isIgnorableType( DeserializationConfig config, BeanDescription beanDesc, Class<?> type, Map<Class<?>, Boolean> ignoredTypes) { Boolean status = ignoredTypes.get(type); if (status == null) { BeanDescription desc = config.introspectClassAnnotations(type); status = config.getAnnotationIntrospector().isIgnorableType(desc.getClassInfo()); // We default to 'false', ie. not ignorable if (status == null) { status = Boolean.FALSE; } } return status; }
public ValueInstantiator constructValueInstantiator(DeserializationConfig config) { JavaType delegateType; boolean maybeVanilla = !_hasNonDefaultCreator; if (maybeVanilla || (_creators[C_DELEGATE] == null)) { delegateType = null; } else { // need to find type... int ix = 0; if (_delegateArgs != null) { for (int i = 0, len = _delegateArgs.length; i < len; ++i) { if (_delegateArgs[i] == null) { // marker for delegate itself ix = i; break; } } } delegateType = _creators[C_DELEGATE].getParameterType(ix); } final JavaType type = _beanDesc.getType(); // Any non-standard creator will prevent; with one exception: int-valued constructor // that standard containers have can be ignored maybeVanilla &= !_hasNonDefaultCreator; if (maybeVanilla) { /* 10-May-2014, tatu: If we have nothing special, and we are dealing with one * of "well-known" types, can create a non-reflection-based instantiator. */ final Class<?> rawType = type.getRawClass(); if (rawType == Collection.class || rawType == List.class || rawType == ArrayList.class) { return new Vanilla(Vanilla.TYPE_COLLECTION); } if (rawType == Map.class || rawType == LinkedHashMap.class) { return new Vanilla(Vanilla.TYPE_MAP); } if (rawType == HashMap.class) { return new Vanilla(Vanilla.TYPE_HASH_MAP); } } StdValueInstantiator inst = new StdValueInstantiator(config, type); inst.configureFromObjectSettings( _creators[C_DEFAULT], _creators[C_DELEGATE], delegateType, _delegateArgs, _creators[C_PROPS], _propertyBasedArgs); inst.configureFromStringCreator(_creators[C_STRING]); inst.configureFromIntCreator(_creators[C_INT]); inst.configureFromLongCreator(_creators[C_LONG]); inst.configureFromDoubleCreator(_creators[C_DOUBLE]); inst.configureFromBooleanCreator(_creators[C_BOOLEAN]); inst.configureIncompleteParameter(_incompleteParameter); return inst; }
/** * Method for constructing a bean deserializer that uses specified intermediate Builder for * binding data, and construction of the value instance. Note that implementation is mostly copied * from the regular BeanDeserializer build method. */ @SuppressWarnings("unchecked") protected JsonDeserializer<Object> buildBuilderBasedDeserializer( DeserializationContext ctxt, JavaType valueType, BeanDescription builderDesc) throws JsonMappingException { // Creators, anyone? (to create builder itself) ValueInstantiator valueInstantiator = findValueInstantiator(ctxt, builderDesc); final DeserializationConfig config = ctxt.getConfig(); BeanDeserializerBuilder builder = constructBeanDeserializerBuilder(ctxt, builderDesc); builder.setValueInstantiator(valueInstantiator); // And then "with methods" for deserializing from JSON Object addBeanProps(ctxt, builderDesc, builder); addObjectIdReader(ctxt, builderDesc, builder); // managed/back reference fields/setters need special handling... first part addReferenceProperties(ctxt, builderDesc, builder); addInjectables(ctxt, builderDesc, builder); JsonPOJOBuilder.Value builderConfig = builderDesc.findPOJOBuilderConfig(); final String buildMethodName = (builderConfig == null) ? "build" : builderConfig.buildMethodName; // and lastly, find build method to use: AnnotatedMethod buildMethod = builderDesc.findMethod(buildMethodName, null); if (buildMethod != null) { // note: can't yet throw error; may be given build method if (config.canOverrideAccessModifiers()) { ClassUtil.checkAndFixAccess(buildMethod.getMember()); } } builder.setPOJOBuilder(buildMethod, builderConfig); // this may give us more information... if (_factoryConfig.hasDeserializerModifiers()) { for (BeanDeserializerModifier mod : _factoryConfig.deserializerModifiers()) { builder = mod.updateBuilder(config, builderDesc, builder); } } JsonDeserializer<?> deserializer = builder.buildBuilderBased(valueType, buildMethodName); // [JACKSON-440]: may have modifier(s) that wants to modify or replace serializer we just built: if (_factoryConfig.hasDeserializerModifiers()) { for (BeanDeserializerModifier mod : _factoryConfig.deserializerModifiers()) { deserializer = mod.modifyDeserializer(config, builderDesc, deserializer); } } return (JsonDeserializer<Object>) deserializer; }
/** * 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 does the heavy lifting of checking for per-type annotations, find out full type, * and figure out which actual factory method to call. */ @SuppressWarnings("unchecked") protected JsonDeserializer<Object> _createDeserializer( DeserializationContext ctxt, DeserializerFactory factory, JavaType type) throws JsonMappingException { final DeserializationConfig config = ctxt.getConfig(); // First things first: do we need to use abstract type mapping? if (type.isAbstract() || type.isMapLikeType() || type.isCollectionLikeType()) { type = factory.mapAbstractType(config, type); } BeanDescription beanDesc = config.introspect(type); // Then: does type define explicit deserializer to use, with annotation(s)? JsonDeserializer<Object> deser = findDeserializerFromAnnotation(ctxt, beanDesc.getClassInfo()); if (deser != null) { return deser; } // If not, may have further type-modification annotations to check: JavaType newType = modifyTypeByAnnotation(ctxt, beanDesc.getClassInfo(), type); if (newType != type) { type = newType; beanDesc = config.introspect(newType); } // We may also have a Builder type to consider... Class<?> builder = beanDesc.findPOJOBuilder(); if (builder != null) { return (JsonDeserializer<Object>) factory.createBuilderBasedDeserializer(ctxt, type, beanDesc, builder); } // Or perhaps a Converter? Converter<Object, Object> conv = beanDesc.findDeserializationConverter(); if (conv == null) { // nope, just construct in normal way return (JsonDeserializer<Object>) _createDeserializer2(ctxt, factory, type, beanDesc); } // otherwise need to do bit of introspection JavaType delegateType = conv.getInputType(ctxt.getTypeFactory()); return new StdDelegatingDeserializer<Object>( conv, delegateType, _createDeserializer2(ctxt, factory, delegateType, beanDesc)); }
protected void addObjectIdReader( DeserializationContext ctxt, BeanDescription beanDesc, BeanDeserializerBuilder builder) throws JsonMappingException { ObjectIdInfo objectIdInfo = beanDesc.getObjectIdInfo(); if (objectIdInfo == null) { return; } Class<?> implClass = objectIdInfo.getGeneratorType(); JavaType idType; SettableBeanProperty idProp; ObjectIdGenerator<?> gen; // Just one special case: Property-based generator is trickier if (implClass == ObjectIdGenerators.PropertyGenerator.class) { // most special one, needs extra work String propName = objectIdInfo.getPropertyName(); idProp = builder.findProperty(propName); if (idProp == null) { throw new IllegalArgumentException( "Invalid Object Id definition for " + beanDesc.getBeanClass().getName() + ": can not find property with name '" + propName + "'"); } idType = idProp.getType(); gen = new PropertyBasedObjectIdGenerator(objectIdInfo.getScope()); } else { JavaType type = ctxt.constructType(implClass); idType = ctxt.getTypeFactory().findTypeParameters(type, ObjectIdGenerator.class)[0]; idProp = null; gen = ctxt.objectIdGeneratorInstance(beanDesc.getClassInfo(), objectIdInfo); } // also: unlike with value deserializers, let's just resolve one we need here JsonDeserializer<?> deser = ctxt.findRootValueDeserializer(idType); builder.setObjectIdReader( ObjectIdReader.construct(idType, objectIdInfo.getPropertyName(), gen, deser, idProp)); }
protected JavaType materializeAbstractType(DeserializationConfig config, BeanDescription beanDesc) throws JsonMappingException { final JavaType abstractType = beanDesc.getType(); /* [JACKSON-502] (1.8): Now it is possible to have multiple resolvers too, * as they are registered via module interface. */ for (AbstractTypeResolver r : _factoryConfig.abstractTypeResolvers()) { JavaType concrete = r.resolveAbstractType(config, abstractType); if (concrete != null) { return concrete; } } return null; }
protected JsonDeserializer<?> _createDeserializer2( DeserializationContext ctxt, DeserializerFactory factory, JavaType type, BeanDescription beanDesc) throws JsonMappingException { final DeserializationConfig config = ctxt.getConfig(); // If not, let's see which factory method to use: if (type.isEnumType()) { return factory.createEnumDeserializer(ctxt, type, beanDesc); } if (type.isContainerType()) { if (type.isArrayType()) { return factory.createArrayDeserializer(ctxt, (ArrayType) type, beanDesc); } if (type.isMapLikeType()) { MapLikeType mlt = (MapLikeType) type; if (mlt.isTrueMapType()) { return factory.createMapDeserializer(ctxt, (MapType) mlt, beanDesc); } return factory.createMapLikeDeserializer(ctxt, mlt, beanDesc); } if (type.isCollectionLikeType()) { /* 03-Aug-2012, tatu: As per [Issue#40], one exception is if shape * is to be Shape.OBJECT. Ideally we'd determine it bit later on * (to allow custom handler checks), but that won't work for other * reasons. So do it here. */ JsonFormat.Value format = beanDesc.findExpectedFormat(null); if (format == null || format.getShape() != JsonFormat.Shape.OBJECT) { CollectionLikeType clt = (CollectionLikeType) type; if (clt.isTrueCollectionType()) { return factory.createCollectionDeserializer(ctxt, (CollectionType) clt, beanDesc); } return factory.createCollectionLikeDeserializer(ctxt, clt, beanDesc); } } } if (JsonNode.class.isAssignableFrom(type.getRawClass())) { return factory.createTreeDeserializer(config, type, beanDesc); } return factory.createBeanDeserializer(ctxt, type, beanDesc); }
/** * 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)); } } }
/** * Method called to figure out settable properties for the bean deserializer to use. * * <p>Note: designed to be overridable, and effort is made to keep interface similar between * versions. */ protected void addBeanProps( DeserializationContext ctxt, BeanDescription beanDesc, BeanDeserializerBuilder builder) throws JsonMappingException { final SettableBeanProperty[] creatorProps = builder.getValueInstantiator().getFromObjectArguments(ctxt.getConfig()); // Things specified as "ok to ignore"? [JACKSON-77] AnnotationIntrospector intr = ctxt.getAnnotationIntrospector(); boolean ignoreAny = false; { Boolean B = intr.findIgnoreUnknownProperties(beanDesc.getClassInfo()); if (B != null) { ignoreAny = B.booleanValue(); builder.setIgnoreUnknownProperties(ignoreAny); } } // Or explicit/implicit definitions? Set<String> ignored = ArrayBuilders.arrayToSet(intr.findPropertiesToIgnore(beanDesc.getClassInfo())); for (String propName : ignored) { builder.addIgnorable(propName); } // Also, do we have a fallback "any" setter? AnnotatedMethod anySetter = beanDesc.findAnySetter(); if (anySetter != null) { builder.setAnySetter(constructAnySetter(ctxt, beanDesc, anySetter)); } // NOTE: we do NOT add @JsonIgnore'd properties into blocked ones if there's any setter // Implicit ones via @JsonIgnore and equivalent? if (anySetter == null) { Collection<String> ignored2 = beanDesc.getIgnoredPropertyNames(); if (ignored2 != null) { for (String propName : ignored2) { // allow ignoral of similarly named JSON property, but do not force; // latter means NOT adding this to 'ignored': builder.addIgnorable(propName); } } } final boolean useGettersAsSetters = (ctxt.isEnabled(MapperFeature.USE_GETTERS_AS_SETTERS) && ctxt.isEnabled(MapperFeature.AUTO_DETECT_GETTERS)); // Ok: let's then filter out property definitions List<BeanPropertyDefinition> propDefs = filterBeanProps(ctxt, beanDesc, builder, beanDesc.findProperties(), ignored); // After which we can let custom code change the set if (_factoryConfig.hasDeserializerModifiers()) { for (BeanDeserializerModifier mod : _factoryConfig.deserializerModifiers()) { propDefs = mod.updateProperties(ctxt.getConfig(), beanDesc, propDefs); } } // At which point we still have all kinds of properties; not all with mutators: for (BeanPropertyDefinition propDef : propDefs) { SettableBeanProperty prop = null; if (propDef.hasConstructorParameter()) { /* [JACKSON-700] If property is passed via constructor parameter, we must * handle things in special way. Not sure what is the most optimal way... * for now, let's just call a (new) method in builder, which does nothing. */ // but let's call a method just to allow custom builders to be aware... final String name = propDef.getName(); for (SettableBeanProperty cp : creatorProps) { if (name.equals(cp.getName())) { prop = cp; break; } } if (prop == null) { throw ctxt.mappingException("Could not find creator property with name '" + name + "'"); } builder.addCreatorProperty(prop); continue; } if (propDef.hasSetter()) { Type propertyType = propDef.getSetter().getGenericParameterType(0); prop = constructSettableProperty(ctxt, beanDesc, propDef, propertyType); } else if (propDef.hasField()) { Type propertyType = propDef.getField().getGenericType(); prop = constructSettableProperty(ctxt, beanDesc, propDef, propertyType); } else if (useGettersAsSetters && propDef.hasGetter()) { /* As per [JACKSON-88], may also need to consider getters * for Map/Collection properties; but with lowest precedence */ AnnotatedMethod getter = propDef.getGetter(); // should only consider Collections and Maps, for now? Class<?> rawPropertyType = getter.getRawType(); if (Collection.class.isAssignableFrom(rawPropertyType) || Map.class.isAssignableFrom(rawPropertyType)) { prop = constructSetterlessProperty(ctxt, beanDesc, propDef); } } if (prop != null) { Class<?>[] views = propDef.findViews(); if (views == null) { // one more twist: if default inclusion disabled, need to force empty set of views if (!ctxt.isEnabled(MapperFeature.DEFAULT_VIEW_INCLUSION)) { views = NO_VIEWS; } } // one more thing before adding to builder: copy any metadata prop.setViews(views); builder.addProperty(prop); } } }
@SuppressWarnings("unchecked") public JsonDeserializer<Object> buildThrowableDeserializer( DeserializationContext ctxt, JavaType type, BeanDescription beanDesc) throws JsonMappingException { final DeserializationConfig config = ctxt.getConfig(); // first: construct like a regular bean deserializer... BeanDeserializerBuilder builder = constructBeanDeserializerBuilder(ctxt, beanDesc); builder.setValueInstantiator(findValueInstantiator(ctxt, beanDesc)); addBeanProps(ctxt, beanDesc, builder); // (and assume there won't be any back references) // But then let's decorate things a bit /* To resolve [JACKSON-95], need to add "initCause" as setter * for exceptions (sub-classes of Throwable). */ AnnotatedMethod am = beanDesc.findMethod("initCause", INIT_CAUSE_PARAMS); if (am != null) { // should never be null SimpleBeanPropertyDefinition propDef = new SimpleBeanPropertyDefinition(am, "cause"); SettableBeanProperty prop = constructSettableProperty(ctxt, beanDesc, propDef, am.getGenericParameterType(0)); if (prop != null) { /* 21-Aug-2011, tatus: We may actually have found 'cause' property * to set (with new 1.9 code)... but let's replace it just in case, * otherwise can end up with odd errors. */ builder.addOrReplaceProperty(prop, true); } } // And also need to ignore "localizedMessage" builder.addIgnorable("localizedMessage"); // [JACKSON-794]: JDK 7 also added "getSuppressed", skip if we have such data: builder.addIgnorable("suppressed"); /* As well as "message": it will be passed via constructor, * as there's no 'setMessage()' method */ builder.addIgnorable("message"); // [JACKSON-440]: update builder now that all information is in? if (_factoryConfig.hasDeserializerModifiers()) { for (BeanDeserializerModifier mod : _factoryConfig.deserializerModifiers()) { builder = mod.updateBuilder(config, beanDesc, builder); } } JsonDeserializer<?> deserializer = builder.build(); /* At this point it ought to be a BeanDeserializer; if not, must assume * it's some other thing that can handle deserialization ok... */ if (deserializer instanceof BeanDeserializer) { deserializer = new ThrowableDeserializer((BeanDeserializer) deserializer); } // [JACKSON-440]: may have modifier(s) that wants to modify or replace serializer we just built: if (_factoryConfig.hasDeserializerModifiers()) { for (BeanDeserializerModifier mod : _factoryConfig.deserializerModifiers()) { deserializer = mod.modifyDeserializer(config, beanDesc, deserializer); } } return (JsonDeserializer<Object>) deserializer; }
private void _verifyProperty(BeanDescription beanDesc, boolean verifyDesc, boolean verifyIndex) { assertNotNull(beanDesc); List<BeanPropertyDefinition> props = beanDesc.findProperties(); assertEquals(2, props.size()); for (BeanPropertyDefinition prop : props) { String name = prop.getName(); final PropertyMetadata md = prop.getMetadata(); if ("a".equals(name)) { assertFalse(md.isRequired()); assertNull(md.getRequired()); if (verifyDesc) { assertEquals(PropDescBean.A_DESC, md.getDescription()); } if (verifyIndex) { assertNull(md.getIndex()); } } else if ("b".equals(name)) { assertTrue(md.isRequired()); assertEquals(Boolean.TRUE, md.getRequired()); if (verifyDesc) { assertNull(md.getDescription()); } if (verifyIndex) { assertEquals(Integer.valueOf(PropDescBean.B_INDEX), md.getIndex()); } } else { fail("Unrecognized property '" + name + "'"); } } }