Examples of com.facebook.presto.jdbc.internal.jackson.databind.jsontype.TypeDeserializer

Package com.facebook.presto.jdbc.internal.jackson.databind.jsontype

Examples of com.facebook.presto.jdbc.internal.jackson.databind.jsontype.TypeDeserializer

com.facebook.presto.jdbc.internal.jackson.databind.jsontype.TypeDeserializer
Interface for deserializing type information from JSON content, to type-safely deserialize data into correct polymorphic instance (when type inclusion has been enabled for type handled).
Separate deserialization methods are needed because serialized form for inclusion mechanism {@link As#PROPERTY}is slighty different if value is not expressed as JSON Object: and as such both type deserializer and serializer need to JSON Object form (array, object or other (== scalar)) being used.

            return null;
        }
        if (deser instanceof ContextualDeserializer) {
            deser = (JsonDeserializer<Object>)((ContextualDeserializer) deser).createContextual(this, null);
        }
        TypeDeserializer typeDeser = _factory.findTypeDeserializer(_config, type);
        if (typeDeser != null) {
            // important: contextualize to indicate this is for root value
            typeDeser = typeDeser.forProperty(null);
            return new TypeWrappedDeserializer(typeDeser, deser);
        }
        return deser;
    }

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    public JsonDeserializer<?> createContextual(DeserializationContext ctxt,
            BeanProperty property) throws JsonMappingException
    {
        KeyDeserializer keyDeser = _keyDeserializer;
        JsonDeserializer<?> deser = _valueDeserializer;
        TypeDeserializer typeDeser = _typeDeserializerForValue;
        // Do we need any contextualization?
        if ((keyDeser != null) && (deser != null) && (typeDeser == null)) { // nope
            return this;
        }
        if (keyDeser == null) {
            keyDeser = ctxt.findKeyDeserializer(_mapType.getKeyType(), property);
        }
        if (deser == null) {
            deser = ctxt.findContextualValueDeserializer(_mapType.getContentType(), property);
        }
        if (typeDeser != null) {
            typeDeser = typeDeser.forProperty(property);
        }
        return withResolved(keyDeser, typeDeser, deser);
    }

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    @Override
    protected T _deserializeContents(JsonParser jp, DeserializationContext ctxt)
            throws IOException, JsonProcessingException {
        JsonDeserializer<?> valueDes = _valueDeserializer;
        JsonToken t;
        final TypeDeserializer typeDeser = _typeDeserializerForValue;
        // No way to pass actual type parameter; but does not matter, just
        // compiler-time fluff:
        ImmutableCollection.Builder<Object> builder = createBuilder();


        while ((t = jp.nextToken()) != JsonToken.END_ARRAY) {

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        JsonDeserializer<?> ed = elementDeserializer;
        if (ed == null) {
            ed = ctxt.findContextualValueDeserializer(type.getContentType(), property);
        }
        // Type deserializer is slightly different; must be passed, but needs to become contextual:
        TypeDeserializer etd = elementTypeDeserializer;
        if (etd != null && property != null) {
            etd = etd.forProperty(property);
        }
        return new MultimapDeserializer(type, kd, etd, ed, this.creatorMethod);
    }

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    @Override
    protected T _deserializeEntries(JsonParser jp, DeserializationContext ctxt) throws IOException,
            JsonProcessingException {
        final KeyDeserializer keyDes = _keyDeserializer;
        final JsonDeserializer<?> valueDes = _valueDeserializer;
        final TypeDeserializer typeDeser = _typeDeserializerForValue;
    
        ImmutableMap.Builder<Object, Object> builder = createBuilder();
        for (; jp.getCurrentToken() == JsonToken.FIELD_NAME; jp.nextToken()) {
            // Must point to field name now
            String fieldName = jp.getCurrentName();

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     */
    public JsonDeserializer<?> createContextual(DeserializationContext ctxt,
            BeanProperty property) throws JsonMappingException
    {
        JsonDeserializer<?> deser = _valueDeserializer;
        TypeDeserializer typeDeser = _typeDeserializerForValue;
        if (deser == null) {
            deser = ctxt.findContextualValueDeserializer(_containerType.getContentType(), property);
        }
        if (typeDeser != null) {
            typeDeser = typeDeser.forProperty(property);
        }
        if (deser == _valueDeserializer && typeDeser == _typeDeserializerForValue) {
            return this;
        }
        return withResolved(typeDeser, deser);

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    @Override
    protected T _deserializeContents(JsonParser jp, DeserializationContext ctxt) throws IOException,
            JsonProcessingException {
        JsonDeserializer<?> valueDes = _valueDeserializer;
        JsonToken t;
        final TypeDeserializer typeDeser = _typeDeserializerForValue;
        T set = createMultiset();
    
        while ((t = jp.nextToken()) != JsonToken.END_ARRAY) {
            Object value;

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        JsonDeserializer<Object> deser = findDeserializerFromAnnotation(ctxt, param);
        // If yes, we are mostly done:
        type = modifyTypeByAnnotation(ctxt, param, type);


        // Type deserializer: either comes from property (and already resolved)
        TypeDeserializer typeDeser = (TypeDeserializer) type.getTypeHandler();
        // or if not, based on type being referenced:
        if (typeDeser == null) {
            typeDeser = findTypeDeserializer(config, type);
        }
        CreatorProperty prop = new CreatorProperty(name, type, typeDeser,

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            if (elemType.isPrimitive()) { // sanity check
                throw new IllegalArgumentException("Internal error: primitive type ("+type+") passed, no array deserializer found");
            }
        }
        // Then optional type info (1.5): if type has been resolved, we may already know type deserializer:
        TypeDeserializer elemTypeDeser = elemType.getTypeHandler();
        // but if not, may still be possible to find:
        if (elemTypeDeser == null) {
            elemTypeDeser = findTypeDeserializer(ctxt.getConfig(), elemType);
        }
        // 23-Nov-2010, tatu: Custom array deserializer?

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        JavaType contentType = type.getContentType();
        // Very first thing: is deserializer hard-coded for elements?
        JsonDeserializer<Object> contentDeser = contentType.getValueHandler();


        // Then optional type info (1.5): if type has been resolved, we may already know type deserializer:
        TypeDeserializer contentTypeDeser = contentType.getTypeHandler();
        // but if not, may still be possible to find:
        if (contentTypeDeser == null) {
            contentTypeDeser = findTypeDeserializer(ctxt.getConfig(), contentType);
        }

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