package tech.powerjob.common.serialize;
|
|
import com.fasterxml.jackson.core.JsonParser;
|
import com.fasterxml.jackson.core.JsonProcessingException;
|
import com.fasterxml.jackson.core.type.TypeReference;
|
import com.fasterxml.jackson.databind.MapperFeature;
|
import com.fasterxml.jackson.databind.json.JsonMapper;
|
import lombok.extern.slf4j.Slf4j;
|
import org.apache.commons.lang3.StringUtils;
|
import org.apache.commons.lang3.exception.ExceptionUtils;
|
import tech.powerjob.common.exception.ImpossibleException;
|
import tech.powerjob.common.exception.PowerJobException;
|
|
import java.io.IOException;
|
import java.util.HashMap;
|
import java.util.Map;
|
|
/**
|
* JSON工具类
|
*
|
* @author tjq
|
* @since 2020/4/16
|
*/
|
@Slf4j
|
public class JsonUtils {
|
|
private static final JsonMapper JSON_MAPPER = JsonMapper.builder()
|
.configure(MapperFeature.PROPAGATE_TRANSIENT_MARKER, true)
|
.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true)
|
.configure(JsonParser.Feature.IGNORE_UNDEFINED, true)
|
.build();
|
|
private static final TypeReference<Map<String, Object>> MAP_TYPE_REFERENCE = new TypeReference<Map<String, Object>> () {};
|
|
private JsonUtils(){
|
|
}
|
|
public static String toJSONString(Object obj) {
|
if (obj instanceof String) {
|
return (String) obj;
|
}
|
try {
|
return JSON_MAPPER.writeValueAsString(obj);
|
}catch (Exception e) {
|
log.error("[PowerJob] toJSONString failed", e);
|
}
|
return null;
|
}
|
|
public static String toJSONStringUnsafe(Object obj) {
|
if (obj instanceof String) {
|
return (String) obj;
|
}
|
try {
|
return JSON_MAPPER.writeValueAsString(obj);
|
}catch (Exception e) {
|
throw new PowerJobException(e);
|
}
|
}
|
|
public static byte[] toBytes(Object obj) {
|
try {
|
return JSON_MAPPER.writeValueAsBytes(obj);
|
}catch (Exception e) {
|
log.error("[PowerJob] serialize failed", e);
|
}
|
return null;
|
}
|
|
public static <T> T parseObject(String json, Class<T> clz) throws JsonProcessingException {
|
return JSON_MAPPER.readValue(json, clz);
|
}
|
|
public static Map<String, Object> parseMap(String json) {
|
if (StringUtils.isEmpty(json)) {
|
return new HashMap<>();
|
}
|
try {
|
return JSON_MAPPER.readValue(json, MAP_TYPE_REFERENCE);
|
} catch (Exception e) {
|
ExceptionUtils.rethrow(e);
|
}
|
throw new ImpossibleException();
|
}
|
|
public static <T> T parseObject(byte[] b, Class<T> clz) throws IOException {
|
return JSON_MAPPER.readValue(b, clz);
|
}
|
|
public static <T> T parseObject(byte[] b, TypeReference<T> typeReference) throws IOException {
|
return JSON_MAPPER.readValue(b, typeReference);
|
}
|
|
public static <T> T parseObject(String json, TypeReference<T> typeReference) throws IOException {
|
return JSON_MAPPER.readValue(json, typeReference);
|
}
|
|
public static <T> T parseObjectIgnoreException(String json, Class<T> clz) {
|
if (StringUtils.isEmpty(json)) {
|
return null;
|
}
|
try {
|
return JSON_MAPPER.readValue(json, clz);
|
}catch (Exception e) {
|
log.error("unable to parse json string to object,current string:{}",json,e);
|
return null;
|
}
|
|
}
|
|
public static <T> T parseObjectUnsafe(String json, Class<T> clz) {
|
try {
|
return JSON_MAPPER.readValue(json, clz);
|
}catch (Exception e) {
|
ExceptionUtils.rethrow(e);
|
}
|
throw new PowerJobException("impossible");
|
}
|
}
|