Example usage for com.fasterxml.jackson.databind.ser BeanPropertyWriter getSerializationType

Introduction

In this page you can find the example usage for com.fasterxml.jackson.databind.ser BeanPropertyWriter getSerializationType.

Prototype

public JavaType getSerializationType() 

Source Link

Usage

From source file:org.gvnix.web.json.ConversionServiceBeanSerializerModifier.java

@Override
public List<BeanPropertyWriter> changeProperties(SerializationConfig config, BeanDescription beanDesc,
        List<BeanPropertyWriter> beanProperties) {

    // We need the BeanPropertyDefinition to get the related Field
    List<BeanPropertyDefinition> properties = beanDesc.findProperties();
    Map<String, BeanPropertyDefinition> propertyDefMap = new HashMap<String, BeanPropertyDefinition>();
    for (BeanPropertyDefinition property : properties) {
        propertyDefMap.put(property.getName(), property);
    }//  w  w w .  j  a va 2s.  co m

    // iterate over bean's properties to configure serializers
    for (int i = 0; i < beanProperties.size(); i++) {
        BeanPropertyWriter beanPropertyWriter = beanProperties.get(i);
        Class<?> propertyType = beanPropertyWriter.getPropertyType();

        if (beanPropertyWriter.hasSerializer()) {
            continue;
        }

        // For conversion between collection, array, and map types,
        // ConversionService.canConvert() method will return 'true'
        // but better to delegate in default Jackson property writer for
        // right start and ends markers serialization and iteration
        if (propertyType.isArray() || Collection.class.isAssignableFrom(propertyType)
                || Map.class.isAssignableFrom(propertyType)) {

            // Don't set ConversionService serializer, let Jackson
            // use default Collection serializer
            continue;
        } else if (BindingResult.class.isAssignableFrom(propertyType)) {
            // Use BindingResultSerializer
            beanPropertyWriter.assignSerializer(bindingResultSerializer);
        } else {

            // ConversionService uses value Class plus related Field
            // annotations to be able to select the right converter,
            // so we must get/ the Field annotations for success
            // formatting
            BeanPropertyDefinition propertyDef = propertyDefMap.get(beanPropertyWriter.getName());
            AnnotatedField annotatedField = propertyDef.getField();
            if (annotatedField == null) {
                continue;
            }
            AnnotatedElement annotatedEl = annotatedField.getAnnotated();

            // Field contains info about Annotations, info that
            // ConversionService uses for success formatting, use it if
            // available. Otherwise use the class of given value.
            TypeDescriptor sourceType = annotatedEl != null ? new TypeDescriptor((Field) annotatedEl)
                    : TypeDescriptor.valueOf(propertyType);

            TypeDescriptor targetType = TypeDescriptor.valueOf(String.class);
            if (beanPropertyWriter.getSerializationType() != null) {
                targetType = TypeDescriptor.valueOf(beanPropertyWriter.getSerializationType().getRawClass());
            }
            if (ObjectUtils.equals(sourceType, targetType)) {
                // No conversion needed
                continue;
            } else if (sourceType.getObjectType() == Object.class && targetType.getObjectType() == String.class
                    && beanPropertyWriter.getSerializationType() == null) {
                // Can't determine source type and no target type has been
                // configure. Delegate on jackson.
                continue;
            }

            // All other converters must be set in ConversionService
            if (this.conversionService.canConvert(sourceType, targetType)) {

                // We must create BeanPropertyWriter own Serializer that
                // has knowledge about the Field related to that
                // BeanPropertyWriter in order to have access to
                // Field Annotations for success serialization
                JsonSerializer<Object> jsonSerializer = new ConversionServicePropertySerializer(
                        this.conversionService, sourceType, targetType);

                beanPropertyWriter.assignSerializer(jsonSerializer);
            }
            // If no converter set, use default Jackson property writer
            else {
                continue;
            }
        }
    }
    return beanProperties;
}

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