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caf-web-isolator

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package com.terapico.caf;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.terapico.utils.TextUtil;
import java.util.ArrayList;

public class Images extends ArrayList {

  /** */
  private static final long serialVersionUID = 206182274332463629L;

  public static Images fromString(String dataInDb) {
    if (TextUtil.isBlank(dataInDb)) {
      return null;
    }
    try {
      return objectMapper().readValue(dataInDb, Images.class);
    } catch (Exception e) {
      //e.printStackTrace();
      // 如果尝试直接json反序列化失败, 继续按单图处理
    }
    Images images = new Images();
    Image image = new Image();
    image.setImageUrl(dataInDb);
    images.add(image );
    return images;
  }

  public Images() {}

  public Images(String value) {

    Images images = fromString(value);
    if (images == null) {
      return;
    }
    images.forEach(image -> this.add(image));
  }

  private static ObjectMapper objectMapper() {
    ObjectMapper mapper = new ObjectMapper();
    mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    mapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
    return mapper;
  }

  @Override
  public String toString() {
    try {
      return objectMapper().writeValueAsString(this);
    } catch (JsonProcessingException e) {
      e.printStackTrace();
      return super.toString();
    }
  }
}