com.jd.blockchain.web.serializes.json.ConsumerJsonDeserializer Maven / Gradle / Ivy

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package com.jd.blockchain.web.serializes.json;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.parser.DefaultJSONParser;
import com.alibaba.fastjson.parser.ParserConfig;
import com.jd.blockchain.crypto.HashDigest;
import com.jd.blockchain.crypto.PubKey;
import com.jd.blockchain.crypto.SignatureDigest;
import com.jd.blockchain.utils.Bytes;
import com.jd.blockchain.utils.codec.Base58Utils;
import com.jd.blockchain.utils.io.BytesSlice;
import com.jd.blockchain.web.serializes.ByteArrayObjectUtil;
import com.jd.blockchain.web.serializes.ExtendJsonDeserializer;

import java.lang.reflect.Type;
import java.util.Map;

/**
 * 默认配置的自定义反序列化处理
 *
 * @author shaozhuguang
 *
 */
public class ConsumerJsonDeserializer implements ExtendJsonDeserializer {

    private Class clazz;

    public ConsumerJsonDeserializer(Class clazz) {
        this.clazz = clazz;
    }

    @Override
    public  T deserialze(DefaultJSONParser parser, Type type, Object fieldName) {
        String parseText = parser.parseObject(String.class);
        if (clazz == BytesSlice.class) {
            byte[] hashBytes = Base58Utils.decode(parseText);
            return (T) new BytesSlice(hashBytes);
        } else {
            if (ByteArrayObjectUtil.BYTEARRAY_JSON_SERIALIZE_CLASS_ARRAY.contains(clazz)) {
                // 首先做JSON序列化，获取value结果
                ValueJson valueJson = JSON.parseObject(parseText, ValueJson.class);
                byte[] hashBytes = Base58Utils.decode(valueJson.getValue());
                if (clazz == HashDigest.class) {
                    return (T) new HashDigest(hashBytes);
                } else if (clazz == PubKey.class) {
                    return (T) new PubKey(hashBytes);
                } else if (clazz == SignatureDigest.class) {
                    return (T) new SignatureDigest(hashBytes);
                } else if (clazz == Bytes.class) {
                    return (T) new Bytes(hashBytes);
                }
            }
        }
        return null;
    }

    @Override
    public Object createInstance(Map map, ParserConfig config) {
        if (ByteArrayObjectUtil.BYTEARRAY_JSON_SERIALIZE_CLASS_ARRAY.contains(clazz)) {
            for (Map.Entry entry : map.entrySet()) {
                Object value = entry.getValue();
                if (value instanceof String) {
                    byte[] hashBytes = Base58Utils.decode((String) value);
                    if (clazz == HashDigest.class) {
                        return new HashDigest(hashBytes);
                    } else if (clazz == PubKey.class) {
                        return new PubKey(hashBytes);
                    } else if (clazz == SignatureDigest.class) {
                        return new SignatureDigest(hashBytes);
                    } else if (clazz == Bytes.class) {
                        return new Bytes(hashBytes);
                    } else if (clazz == BytesSlice.class) {
                        return new BytesSlice(hashBytes);
                    }
                }
            }
        }
        return null;
    }
}