Examples with AssociationDescriptor org.qi4j.api.association.AssociationDescriptor used on opensource projects

Example 21 with AssociationDescriptor

use of org.qi4j.api.association.AssociationDescriptor in project qi4j-sdk by Qi4j.

the class ValueDeserializerAdapter method deserializeValueComposite.

@SuppressWarnings("unchecked")
private <T> T deserializeValueComposite(ValueCompositeType valueCompositeType, Class<?> valueBuilderType, InputNodeType inputNode) throws Exception {
    final Map<String, Object> stateMap = new HashMap<>();
    // Properties
    for (PropertyDescriptor property : valueCompositeType.properties()) {
        String propertyName = property.qualifiedName().name();
        Object value;
        if (objectHasField(inputNode, propertyName)) {
            value = getObjectFieldValue(inputNode, propertyName, buildDeserializeInputNodeFunction(property.valueType()));
            TREE_PARSING_LOG.trace("In deserializeValueComposite(), getObjectFieldValue( {} ) for key {} returned '{}' of class {}", inputNode, propertyName, value, value == null ? "N/A" : value.getClass());
            if (property.isImmutable()) {
                if (value instanceof Set) {
                    value = Collections.unmodifiableSet((Set<?>) value);
                } else if (value instanceof List) {
                    value = Collections.unmodifiableList((List<?>) value);
                } else if (value instanceof Map) {
                    value = Collections.unmodifiableMap((Map<?, ?>) value);
                }
            }
            TREE_PARSING_LOG.trace("Property {}#{}( {} ) deserialized value is '{}' of class {}", property.qualifiedName().type(), property.qualifiedName().name(), property.valueType(), value, value == null ? "N/A" : value.getClass());
        } else {
            // Serialized object does not contain the field, try to default it
            value = property.initialValue(valuesModule());
            TREE_PARSING_LOG.trace("Property {} was not defined in serialized object and has been defaulted to '{}'", property.qualifiedName(), value);
        }
        stateMap.put(propertyName, value);
    }
    // Associations
    for (AssociationDescriptor association : valueCompositeType.associations()) {
        String associationName = association.qualifiedName().name();
        if (objectHasField(inputNode, associationName)) {
            Object value = getObjectFieldValue(inputNode, associationName, buildDeserializeInputNodeFunction(new ValueType(EntityReference.class)));
            stateMap.put(associationName, value);
        }
    }
    // ManyAssociations
    for (AssociationDescriptor manyAssociation : valueCompositeType.manyAssociations()) {
        String manyAssociationName = manyAssociation.qualifiedName().name();
        if (objectHasField(inputNode, manyAssociationName)) {
            Object value = getObjectFieldValue(inputNode, manyAssociationName, buildDeserializeInputNodeFunction(new CollectionType(Collection.class, new ValueType(EntityReference.class))));
            stateMap.put(manyAssociationName, value);
        }
    }
    // NamedAssociations
    for (AssociationDescriptor namedAssociation : valueCompositeType.namedAssociations()) {
        String namedAssociationName = namedAssociation.qualifiedName().name();
        if (objectHasField(inputNode, namedAssociationName)) {
            Object value = getObjectFieldValue(inputNode, namedAssociationName, buildDeserializeInputNodeFunction(MapType.of(String.class, EntityReference.class)));
            stateMap.put(namedAssociationName, value);
        }
    }
    ValueBuilder<?> valueBuilder = buildNewValueBuilderWithState(valueBuilderType, stateMap);
    // Unchecked cast because the builder could use a type != T
    return (T) valueBuilder.newInstance();
}

Example 22 with AssociationDescriptor

use of org.qi4j.api.association.AssociationDescriptor in project qi4j-sdk by Qi4j.

the class PreferencesEntityStoreMixin method entityStateOf.

@Override
public EntityState entityStateOf(EntityStoreUnitOfWork unitOfWork, EntityReference identity) {
    try {
        DefaultEntityStoreUnitOfWork desuw = (DefaultEntityStoreUnitOfWork) unitOfWork;
        Module module = desuw.module();
        if (!root.nodeExists(identity.identity())) {
            throw new NoSuchEntityException(identity, UnknownType.class);
        }
        Preferences entityPrefs = root.node(identity.identity());
        String type = entityPrefs.get("type", null);
        EntityStatus status = EntityStatus.LOADED;
        EntityDescriptor entityDescriptor = module.entityDescriptor(type);
        if (entityDescriptor == null) {
            throw new EntityTypeNotFoundException(type);
        }
        Map<QualifiedName, Object> properties = new HashMap<>();
        Preferences propsPrefs = null;
        for (PropertyDescriptor persistentPropertyDescriptor : entityDescriptor.state().properties()) {
            if (persistentPropertyDescriptor.qualifiedName().name().equals("identity")) {
                // Fake identity property
                properties.put(persistentPropertyDescriptor.qualifiedName(), identity.identity());
                continue;
            }
            if (propsPrefs == null) {
                propsPrefs = entityPrefs.node("properties");
            }
            ValueType propertyType = persistentPropertyDescriptor.valueType();
            Class<?> mainType = propertyType.mainType();
            if (Number.class.isAssignableFrom(mainType)) {
                if (mainType.equals(Long.class)) {
                    properties.put(persistentPropertyDescriptor.qualifiedName(), this.getNumber(propsPrefs, persistentPropertyDescriptor, LONG_PARSER));
                } else if (mainType.equals(Integer.class)) {
                    properties.put(persistentPropertyDescriptor.qualifiedName(), this.getNumber(propsPrefs, persistentPropertyDescriptor, INT_PARSER));
                } else if (mainType.equals(Double.class)) {
                    properties.put(persistentPropertyDescriptor.qualifiedName(), this.getNumber(propsPrefs, persistentPropertyDescriptor, DOUBLE_PARSER));
                } else if (mainType.equals(Float.class)) {
                    properties.put(persistentPropertyDescriptor.qualifiedName(), this.getNumber(propsPrefs, persistentPropertyDescriptor, FLOAT_PARSER));
                } else {
                    // Load as string even though it's a number
                    String json = propsPrefs.get(persistentPropertyDescriptor.qualifiedName().name(), null);
                    Object value;
                    if (json == null) {
                        value = null;
                    } else {
                        value = valueSerialization.deserialize(persistentPropertyDescriptor.valueType(), json);
                    }
                    properties.put(persistentPropertyDescriptor.qualifiedName(), value);
                }
            } else if (mainType.equals(Boolean.class)) {
                Boolean initialValue = (Boolean) persistentPropertyDescriptor.initialValue(module);
                properties.put(persistentPropertyDescriptor.qualifiedName(), propsPrefs.getBoolean(persistentPropertyDescriptor.qualifiedName().name(), initialValue == null ? false : initialValue));
            } else if (propertyType instanceof ValueCompositeType || propertyType instanceof MapType || propertyType instanceof CollectionType || propertyType instanceof EnumType) {
                String json = propsPrefs.get(persistentPropertyDescriptor.qualifiedName().name(), null);
                Object value;
                if (json == null) {
                    value = null;
                } else {
                    value = valueSerialization.deserialize(persistentPropertyDescriptor.valueType(), json);
                }
                properties.put(persistentPropertyDescriptor.qualifiedName(), value);
            } else {
                String json = propsPrefs.get(persistentPropertyDescriptor.qualifiedName().name(), null);
                if (json == null) {
                    if (persistentPropertyDescriptor.initialValue(module) != null) {
                        properties.put(persistentPropertyDescriptor.qualifiedName(), persistentPropertyDescriptor.initialValue(module));
                    } else {
                        properties.put(persistentPropertyDescriptor.qualifiedName(), null);
                    }
                } else {
                    Object value = valueSerialization.deserialize(propertyType, json);
                    properties.put(persistentPropertyDescriptor.qualifiedName(), value);
                }
            }
        }
        // Associations
        Map<QualifiedName, EntityReference> associations = new HashMap<>();
        Preferences assocs = null;
        for (AssociationDescriptor associationType : entityDescriptor.state().associations()) {
            if (assocs == null) {
                assocs = entityPrefs.node("associations");
            }
            String associatedEntity = assocs.get(associationType.qualifiedName().name(), null);
            EntityReference value = associatedEntity == null ? null : EntityReference.parseEntityReference(associatedEntity);
            associations.put(associationType.qualifiedName(), value);
        }
        // ManyAssociations
        Map<QualifiedName, List<EntityReference>> manyAssociations = new HashMap<>();
        Preferences manyAssocs = null;
        for (AssociationDescriptor manyAssociationType : entityDescriptor.state().manyAssociations()) {
            if (manyAssocs == null) {
                manyAssocs = entityPrefs.node("manyassociations");
            }
            List<EntityReference> references = new ArrayList<>();
            String entityReferences = manyAssocs.get(manyAssociationType.qualifiedName().name(), null);
            if (entityReferences == null) {
                // ManyAssociation not found, default to empty one
                manyAssociations.put(manyAssociationType.qualifiedName(), references);
            } else {
                String[] refs = entityReferences.split("\n");
                for (String ref : refs) {
                    EntityReference value = ref == null ? null : EntityReference.parseEntityReference(ref);
                    references.add(value);
                }
                manyAssociations.put(manyAssociationType.qualifiedName(), references);
            }
        }
        // NamedAssociations
        Map<QualifiedName, Map<String, EntityReference>> namedAssociations = new HashMap<>();
        Preferences namedAssocs = null;
        for (AssociationDescriptor namedAssociationType : entityDescriptor.state().namedAssociations()) {
            if (namedAssocs == null) {
                namedAssocs = entityPrefs.node("namedassociations");
            }
            Map<String, EntityReference> references = new LinkedHashMap<>();
            String entityReferences = namedAssocs.get(namedAssociationType.qualifiedName().name(), null);
            if (entityReferences == null) {
                // NamedAssociation not found, default to empty one
                namedAssociations.put(namedAssociationType.qualifiedName(), references);
            } else {
                String[] namedRefs = entityReferences.split("\n");
                if (namedRefs.length % 2 != 0) {
                    throw new EntityStoreException("Invalid NamedAssociation storage format");
                }
                for (int idx = 0; idx < namedRefs.length; idx += 2) {
                    String name = namedRefs[idx];
                    String ref = namedRefs[idx + 1];
                    references.put(name, EntityReference.parseEntityReference(ref));
                }
                namedAssociations.put(namedAssociationType.qualifiedName(), references);
            }
        }
        return new DefaultEntityState(desuw, entityPrefs.get("version", ""), entityPrefs.getLong("modified", unitOfWork.currentTime()), identity, status, entityDescriptor, properties, associations, manyAssociations, namedAssociations);
    } catch (ValueSerializationException | BackingStoreException e) {
        throw new EntityStoreException(e);
    }
}

Example 23 with AssociationDescriptor

use of org.qi4j.api.association.AssociationDescriptor in project qi4j-sdk by Qi4j.

the class SQLEntityStoreMixin method readEntityState.

protected DefaultEntityState readEntityState(DefaultEntityStoreUnitOfWork unitOfWork, Reader entityState) throws EntityStoreException {
    try {
        Module module = unitOfWork.module();
        JSONObject jsonObject = new JSONObject(new JSONTokener(entityState));
        EntityStatus status = EntityStatus.LOADED;
        String version = jsonObject.getString(JSONKeys.VERSION);
        long modified = jsonObject.getLong(JSONKeys.MODIFIED);
        String identity = jsonObject.getString(JSONKeys.IDENTITY);
        // Check if version is correct
        String currentAppVersion = jsonObject.optString(JSONKeys.APPLICATION_VERSION, "0.0");
        if (!currentAppVersion.equals(application.version())) {
            if (migration != null) {
                migration.migrate(jsonObject, application.version(), this);
            } else {
                // Do nothing - set version to be correct
                jsonObject.put(JSONKeys.APPLICATION_VERSION, application.version());
            }
            LOGGER.trace("Updated version nr on {} from {} to {}", identity, currentAppVersion, application.version());
            // State changed
            status = EntityStatus.UPDATED;
        }
        String type = jsonObject.getString(JSONKeys.TYPE);
        EntityDescriptor entityDescriptor = module.entityDescriptor(type);
        if (entityDescriptor == null) {
            throw new EntityTypeNotFoundException(type);
        }
        Map<QualifiedName, Object> properties = new HashMap<>();
        JSONObject props = jsonObject.getJSONObject(JSONKeys.PROPERTIES);
        for (PropertyDescriptor propertyDescriptor : entityDescriptor.state().properties()) {
            Object jsonValue;
            try {
                jsonValue = props.get(propertyDescriptor.qualifiedName().name());
            } catch (JSONException e) {
                // Value not found, default it
                Object initialValue = propertyDescriptor.initialValue(module);
                properties.put(propertyDescriptor.qualifiedName(), initialValue);
                status = EntityStatus.UPDATED;
                continue;
            }
            if (JSONObject.NULL.equals(jsonValue)) {
                properties.put(propertyDescriptor.qualifiedName(), null);
            } else {
                Object value = valueSerialization.deserialize(propertyDescriptor.valueType(), jsonValue.toString());
                properties.put(propertyDescriptor.qualifiedName(), value);
            }
        }
        Map<QualifiedName, EntityReference> associations = new HashMap<>();
        JSONObject assocs = jsonObject.getJSONObject(JSONKeys.ASSOCIATIONS);
        for (AssociationDescriptor associationType : entityDescriptor.state().associations()) {
            try {
                Object jsonValue = assocs.get(associationType.qualifiedName().name());
                EntityReference value = jsonValue == JSONObject.NULL ? null : EntityReference.parseEntityReference((String) jsonValue);
                associations.put(associationType.qualifiedName(), value);
            } catch (JSONException e) {
                // Association not found, default it to null
                associations.put(associationType.qualifiedName(), null);
                status = EntityStatus.UPDATED;
            }
        }
        JSONObject manyAssocs = jsonObject.getJSONObject(JSONKeys.MANY_ASSOCIATIONS);
        Map<QualifiedName, List<EntityReference>> manyAssociations = new HashMap<>();
        for (AssociationDescriptor manyAssociationType : entityDescriptor.state().manyAssociations()) {
            List<EntityReference> references = new ArrayList<>();
            try {
                JSONArray jsonValues = manyAssocs.getJSONArray(manyAssociationType.qualifiedName().name());
                for (int i = 0; i < jsonValues.length(); i++) {
                    Object jsonValue = jsonValues.getString(i);
                    EntityReference value = jsonValue == JSONObject.NULL ? null : EntityReference.parseEntityReference((String) jsonValue);
                    references.add(value);
                }
                manyAssociations.put(manyAssociationType.qualifiedName(), references);
            } catch (JSONException e) {
                // ManyAssociation not found, default to empty one
                manyAssociations.put(manyAssociationType.qualifiedName(), references);
            }
        }
        JSONObject namedAssocs = jsonObject.has(JSONKeys.NAMED_ASSOCIATIONS) ? jsonObject.getJSONObject(JSONKeys.NAMED_ASSOCIATIONS) : new JSONObject();
        Map<QualifiedName, Map<String, EntityReference>> namedAssociations = new HashMap<>();
        for (AssociationDescriptor namedAssociationType : entityDescriptor.state().namedAssociations()) {
            Map<String, EntityReference> references = new LinkedHashMap<>();
            try {
                JSONObject jsonValues = namedAssocs.getJSONObject(namedAssociationType.qualifiedName().name());
                JSONArray names = jsonValues.names();
                if (names != null) {
                    for (int idx = 0; idx < names.length(); idx++) {
                        String name = names.getString(idx);
                        String jsonValue = jsonValues.getString(name);
                        references.put(name, EntityReference.parseEntityReference(jsonValue));
                    }
                }
                namedAssociations.put(namedAssociationType.qualifiedName(), references);
            } catch (JSONException e) {
                // NamedAssociation not found, default to empty one
                namedAssociations.put(namedAssociationType.qualifiedName(), references);
            }
        }
        return new DefaultEntityState(unitOfWork, version, modified, EntityReference.parseEntityReference(identity), status, entityDescriptor, properties, associations, manyAssociations, namedAssociations);
    } catch (JSONException e) {
        throw new EntityStoreException(e);
    }
}

Example 24 with AssociationDescriptor

use of org.qi4j.api.association.AssociationDescriptor in project qi4j-sdk by Qi4j.

the class ValueToEntityMixin method doUnQualifiedUpdate.

private void doUnQualifiedUpdate(AssociationStateHolder eState, AssociationStateDescriptor eStateDesc, AssociationStateHolder vState, AssociationStateDescriptor vStateDesc) {
    for (PropertyDescriptor ePropDesc : eStateDesc.properties()) {
        if (IDENTITY_STATE_NAME.equals(ePropDesc.qualifiedName())) {
            // Ignore Identity, could be logged
            continue;
        }
        try {
            PropertyDescriptor vPropDesc = vStateDesc.findPropertyModelByName(ePropDesc.qualifiedName().name());
            eState.propertyFor(ePropDesc.accessor()).set(vState.propertyFor(vPropDesc.accessor()).get());
        } catch (IllegalArgumentException propNotFoundOnValue) {
        // Property not found on Value, do nothing
        }
    }
    for (AssociationDescriptor eAssocDesc : eStateDesc.associations()) {
        Association<Object> eAssoc = eState.associationFor(eAssocDesc.accessor());
        try {
            AssociationDescriptor vAssocDesc = vStateDesc.getAssociationByName(eAssocDesc.qualifiedName().name());
            eAssoc.set(vState.associationFor(vAssocDesc.accessor()).get());
        } catch (IllegalArgumentException assocNotFoundOnValue) {
            // Association not found on Value, find Property<String> and load associated Entity
            try {
                PropertyDescriptor vPropDesc = vStateDesc.findPropertyModelByName(eAssocDesc.qualifiedName().name());
                if (STRING_TYPE_SPEC.satisfiedBy(vPropDesc.valueType())) {
                    String assocId = (String) vState.propertyFor(vPropDesc.accessor()).get();
                    if (assocId != null) {
                        eAssoc.set(module.currentUnitOfWork().get((Class) eAssocDesc.type(), assocId));
                    } else {
                        eAssoc.set(null);
                    }
                }
            } catch (IllegalArgumentException propNotFoundOnValue) {
            // Do nothing
            }
        }
    }
    for (AssociationDescriptor eAssocDesc : eStateDesc.manyAssociations()) {
        ManyAssociation<Object> eManyAssoc = eState.manyAssociationFor(eAssocDesc.accessor());
        try {
            AssociationDescriptor vAssDesc = vStateDesc.getManyAssociationByName(eAssocDesc.qualifiedName().name());
            ManyAssociation<Object> vManyAss = vState.manyAssociationFor(vAssDesc.accessor());
            for (Object ass : eManyAssoc.toList()) {
                eManyAssoc.remove(ass);
            }
            for (Object ass : vManyAss.toList()) {
                eManyAssoc.add(ass);
            }
        } catch (IllegalArgumentException assNotFoundOnValue) {
            // ManyAssociation not found on Value, find Property<List<String>> and load associated Entities
            try {
                PropertyDescriptor vPropDesc = vStateDesc.findPropertyModelByName(eAssocDesc.qualifiedName().name());
                if (STRING_COLLECTION_TYPE_SPEC.satisfiedBy(vPropDesc.valueType())) {
                    Collection<String> vAssocState = (Collection) vState.propertyFor(vPropDesc.accessor()).get();
                    for (Object ass : eManyAssoc.toList()) {
                        eManyAssoc.remove(ass);
                    }
                    if (vAssocState != null) {
                        for (String eachAssoc : vAssocState) {
                            eManyAssoc.add(module.currentUnitOfWork().get((Class) eAssocDesc.type(), eachAssoc));
                        }
                    }
                }
            } catch (IllegalArgumentException propNotFoundOnValue) {
            // Do nothing
            }
        }
    }
    for (AssociationDescriptor eAssocDesc : eStateDesc.namedAssociations()) {
        NamedAssociation<Object> eNamedAssoc = eState.namedAssociationFor(eAssocDesc.accessor());
        try {
            AssociationDescriptor vAssocDesc = vStateDesc.getNamedAssociationByName(eAssocDesc.qualifiedName().name());
            NamedAssociation<Object> vNamedAssoc = vState.namedAssociationFor(vAssocDesc.accessor());
            for (String assocName : Iterables.toList(eNamedAssoc)) {
                eNamedAssoc.remove(assocName);
            }
            for (Map.Entry<String, Object> assocEntry : vNamedAssoc.toMap().entrySet()) {
                eNamedAssoc.put(assocEntry.getKey(), assocEntry.getValue());
            }
        } catch (IllegalArgumentException assocNotFoundOnValue) {
            // NamedAssociation not found on Value, find Property<Map<String,String>> and load associated Entities
            try {
                PropertyDescriptor vPropDesc = vStateDesc.findPropertyModelByName(eAssocDesc.qualifiedName().name());
                if (STRING_MAP_TYPE_SPEC.satisfiedBy(vPropDesc.valueType())) {
                    Map<String, String> vAssocState = (Map) vState.propertyFor(vPropDesc.accessor()).get();
                    for (String assocName : Iterables.toList(eNamedAssoc)) {
                        eNamedAssoc.remove(assocName);
                    }
                    if (vAssocState != null) {
                        for (Map.Entry<String, String> assocEntry : vAssocState.entrySet()) {
                            eNamedAssoc.put(assocEntry.getKey(), module.currentUnitOfWork().get((Class) eAssocDesc.type(), assocEntry.getValue()));
                        }
                    }
                }
            } catch (IllegalArgumentException propNotFoundOnValue) {
            // Do nothing
            }
        }
    }
}

Example 25 with AssociationDescriptor

use of org.qi4j.api.association.AssociationDescriptor in project qi4j-sdk by Qi4j.

the class ValueToEntityMixin method doUnqualifiedConversion.

private <T> EntityBuilder<?> doUnqualifiedConversion(Class<T> entityType, String identity, final AssociationStateHolder vState, final AssociationStateDescriptor vStateDesc) {
    Function<PropertyDescriptor, Object> props = new Function<PropertyDescriptor, Object>() {

        @Override
        public Object map(PropertyDescriptor ePropDesc) {
            String propName = ePropDesc.qualifiedName().name();
            try {
                PropertyDescriptor vPropDesc = vStateDesc.findPropertyModelByName(propName);
                return vState.propertyFor(vPropDesc.accessor()).get();
            } catch (IllegalArgumentException propNotFoundOnValue) {
                // Property not found on Value
                return null;
            }
        }
    };
    Function<AssociationDescriptor, EntityReference> assocs = new Function<AssociationDescriptor, EntityReference>() {

        @Override
        public EntityReference map(AssociationDescriptor eAssocDesc) {
            String assocName = eAssocDesc.qualifiedName().name();
            try {
                AssociationDescriptor vAssocDesc = vStateDesc.getAssociationByName(assocName);
                Object assocEntity = vState.associationFor(vAssocDesc.accessor()).get();
                return assocEntity == null ? null : EntityReference.entityReferenceFor(assocEntity);
            } catch (IllegalArgumentException assocNotFoundOnValue) {
                // Association not found on Value, find Property<String> and convert to Association
                try {
                    PropertyDescriptor vPropDesc = vStateDesc.findPropertyModelByName(assocName);
                    if (STRING_TYPE_SPEC.satisfiedBy(vPropDesc.valueType())) {
                        String assocId = (String) vState.propertyFor(vPropDesc.accessor()).get();
                        return assocId == null ? null : EntityReference.parseEntityReference(assocId);
                    }
                    return null;
                } catch (IllegalArgumentException propNotFoundOnValue) {
                    return null;
                }
            }
        }
    };
    Function<AssociationDescriptor, Iterable<EntityReference>> manyAssocs = new Function<AssociationDescriptor, Iterable<EntityReference>>() {

        @Override
        public Iterable<EntityReference> map(AssociationDescriptor eAssocDesc) {
            String assocName = eAssocDesc.qualifiedName().name();
            try {
                AssociationDescriptor vAssocDesc = vStateDesc.getManyAssociationByName(assocName);
                ManyAssociation<Object> vManyAssoc = vState.manyAssociationFor(vAssocDesc.accessor());
                return MANY_ASSOC_TO_ENTITY_REF_ITERABLE.map(vManyAssoc);
            } catch (IllegalArgumentException assocNotFoundOnValue) {
                // ManyAssociation not found on Value, find List<String> and convert to ManyAssociation
                try {
                    PropertyDescriptor vPropDesc = vStateDesc.findPropertyModelByName(assocName);
                    if (STRING_COLLECTION_TYPE_SPEC.satisfiedBy(vPropDesc.valueType())) {
                        Collection<String> vAssocState = (Collection) vState.propertyFor(vPropDesc.accessor()).get();
                        return STRING_COLLEC_TO_ENTITY_REF_ITERABLE.map(vAssocState);
                    }
                    return Iterables.empty();
                } catch (IllegalArgumentException propNotFoundOnValue) {
                    return Iterables.empty();
                }
            }
        }
    };
    Function<AssociationDescriptor, Map<String, EntityReference>> namedAssocs = new Function<AssociationDescriptor, Map<String, EntityReference>>() {

        @Override
        public Map<String, EntityReference> map(AssociationDescriptor eAssocDesc) {
            String assocName = eAssocDesc.qualifiedName().name();
            try {
                AssociationDescriptor vAssocDesc = vStateDesc.getNamedAssociationByName(assocName);
                NamedAssociation<Object> vAssocState = vState.namedAssociationFor(vAssocDesc.accessor());
                return NAMED_ASSOC_TO_ENTITY_REF_MAP.map(vAssocState);
            } catch (IllegalArgumentException assocNotFoundOnValue) {
                // Find Map<String,String> Property and convert to NamedAssociation
                try {
                    PropertyDescriptor vPropDesc = vStateDesc.findPropertyModelByName(assocName);
                    if (STRING_MAP_TYPE_SPEC.satisfiedBy(vPropDesc.valueType())) {
                        Map<String, String> vAssocState = (Map) vState.propertyFor(vPropDesc.accessor()).get();
                        return STRING_MAP_TO_ENTITY_REF_MAP.map(vAssocState);
                    }
                    return Collections.EMPTY_MAP;
                } catch (IllegalArgumentException propNotFoundOnValue) {
                    return Collections.EMPTY_MAP;
                }
            }
        }
    };
    return module.currentUnitOfWork().newEntityBuilderWithState(entityType, identity, props, assocs, manyAssocs, namedAssocs);
}