org.avaje.ebeanorm.jackson.FindDeserializers Maven / Gradle / Ivy

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package org.avaje.ebeanorm.jackson;

import com.avaje.ebean.text.json.JsonContext;
import com.fasterxml.jackson.databind.BeanDescription;
import com.fasterxml.jackson.databind.DeserializationConfig;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.deser.Deserializers;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import com.fasterxml.jackson.databind.type.CollectionType;

import java.util.Collection;

/**
 * Finds JsonDeserializer implementations for entity beans or entity bean collections.
 */
class FindDeserializers extends Deserializers.Base {


  final JsonContext jsonContext;

  /**
   * Construct with the given JsonContext.
   */
  FindDeserializers(JsonContext jsonContext) {
    this.jsonContext = jsonContext;
  }

  @Override
  public JsonDeserializer findBeanDeserializer(JavaType type, DeserializationConfig config, BeanDescription beanDesc) throws JsonMappingException {

    if (jsonContext.isSupportedType(type.getRawClass())) {
      return new BeanTypeDeserializer(jsonContext, type.getRawClass());
    }
    return null;
  }

  @Override
  public JsonDeserializer findCollectionDeserializer(CollectionType type, DeserializationConfig config,
                                  BeanDescription beanDesc, TypeDeserializer typeDeserializer,
                                  JsonDeserializer elementDeserializer) throws JsonMappingException {

    Class clazz = type.getContentType().getRawClass();
    if (Collection.class.isAssignableFrom(type.getRawClass()) && jsonContext.isSupportedType(clazz)) {
      return new BeanListTypeDeserializer(jsonContext, clazz);
    }

    return null;
  }


}