package cn.flightfeather.supervision.common.api2word.utils;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;

import java.io.IOException;
import java.util.List;

/**
 * @author cuixiuyin
 * @Date: 2018/11/05
 */

public class JsonUtils {

    private static ObjectMapper objectMapper = new ObjectMapper();

    static {
        objectMapper.setSerializationInclusion(JsonInclude.Include.ALWAYS);
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        objectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
        objectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);
        objectMapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
    }

    public static <T> T readValue(String jsonStr, Class<T> clazz) throws IOException {
        return objectMapper.readValue(jsonStr, clazz);
    }

    public static <T> List<T> readListValue(String jsonStr, Class<T> clazz) throws IOException {
        JavaType javaType = objectMapper.getTypeFactory().constructParametricType(List.class, clazz);
        return objectMapper.readValue(jsonStr, javaType);
    }

    public static ArrayNode readArray(String jsonStr) throws IOException {
        JsonNode node = objectMapper.readTree(jsonStr);
        if (node.isArray()) {
            return (ArrayNode) node;
        }
        return null;
    }

    public static JsonNode readNode(String jsonStr) throws IOException {
        return objectMapper.readTree(jsonStr);
    }

    public static String writeJsonStr(Object obj) throws JsonProcessingException {
        return objectMapper.writeValueAsString(obj);
    }

    public static ObjectNode createObjectNode() {
        return objectMapper.createObjectNode();
    }

    public static ArrayNode createArrayNode() {
        return objectMapper.createArrayNode();
    }

}