封装返回值
import com.alibaba.fastjson.annotation.JSONField;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.fasterxml.jackson.annotation.JsonIgnore;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.io.Serializable;
import java.util.Collection;
import java.util.Collections;// 操作结果返回包装类
public class ResultWrapper implements Serializable {private static final Logger logger = LoggerFactory.getLogger(ResultWrapper.class);private static final long serialVersionUID = 1L;public static final String SUFFIX_SUCCESS = "成功";public static final String SUFFIX_FAILURE = "失败";private static final Object[] EMPTY_ARRAY = new Object[]{};/*** 操作是否成功*/private boolean success;/*** 操作信息*/private String message;/*** 附帶数据*/private Object object;private boolean feignHystrix;public ResultWrapper() {}public ResultWrapper(boolean success) {this.success = success;}public static ResultWrapper debug() {return success(false).message("调试中");}public static ResultWrapper success(boolean success) {return new ResultWrapper(success);}public static ResultWrapper success() {return success(true);}public static ResultWrapper failure() {return success(false);}/*** @return feign熔断，说明feign调用失败*/public static ResultWrapper feignHystrix() {ResultWrapper fh = success(false);fh.setFeignHystrix(true);fh.setMessage("远程服务调用异常");return fh;}public <T extends ResultWrapper> T message(String message) {this.message = message;return (T) this;}/*** 传入的信息根据是否成功附带后缀** @param message* @return*/public <T extends ResultWrapper> T submessage(String message) {if (success) {this.message = message + SUFFIX_SUCCESS;} else {this.message = message + SUFFIX_FAILURE;}return (T) this;}public <T extends ResultWrapper> T messageAdd() {return submessage("添加");}public <T extends ResultWrapper> T messageEdit() {return submessage("编辑");}public <T extends ResultWrapper> T messageDelete() {return submessage("删除");}public <T extends ResultWrapper> T messageQuery() {return submessage("查询");}public <T extends ResultWrapper> T messageExist(String msg) {return message(msg + "已存在");}public <T extends ResultWrapper> T messageNotExist(String msg) {return message(msg + "不存在");}public <T extends ResultWrapper> T messageNotEmpty(String msg) {return message(msg + "不能为空");}public <T extends ResultWrapper> T object(Object object) {this.object = object;return (T) this;}public <T extends ResultWrapper> T object(Object... object) {this.object = object;return (T) this;}public <T extends ResultWrapper> T objectIf(boolean ifObject, Object object) {if (ifObject) {return object(object);}return (T) this;}public <T extends ResultWrapper> T objectIf(boolean ifObject, Object... object) {if (ifObject) {return object(object);}return (T) this;}public <T extends ResultWrapper> T objectEmptyArray() {this.object = EMPTY_ARRAY;return (T) this;}public <T extends ResultWrapper> T objectEmptyList() {this.object = Collections.emptyList();return (T) this;}public <T extends ResultWrapper> T throwable(Throwable e) {this.message = e.getMessage();this.object = e;return (T) this;}public <T extends ResultWrapper> T transaction() {if (success) {return (T) this;} else {throw new RuntimeException(message);}}public <T extends ResultWrapper> T cache(boolean success, CacheHandler ch) {if (this.success == success && ch != null) {ch.cache();}return (T) this;}public <T extends ResultWrapper> T cacheOnSuccess(CacheHandler ch) {return cache(true, ch);}public <T extends ResultWrapper> T cacheOnFailure(CacheHandler ch) {return cache(false, ch);}public static <T> ResultWrapper list(Collection<T> collection) {return ResultWrapper.success().messageQuery().object(collection);}public static <T> ResultWrapper page(IPage<T> page) {return ResultWrapper.success().messageQuery().object(page);}public boolean isSuccess() {return success;}public String getMessage() {return message;}public Object getObject() {return object;}@JsonIgnore@JSONField(serialize = false)public boolean isFeignHystrix() {return feignHystrix;}@JsonIgnore@JSONField(serialize = false)public <T> T getObjectCastSafety() {return (T) object;}@JsonIgnore@JSONField(serialize = false)public <T> T getObjectCastUnsafe() {return getObjectCastUnsafeDefault(null);}@JsonIgnore@JSONField(serialize = false)public <T> T getObjectCastUnsafeDefault(T defaultValue) {try {if (object == null) {return defaultValue;}return (T) object;} catch (Exception e) {logger.error("getObjectCastUnsafeDefault", e);return defaultValue;}}public void setSuccess(boolean success) {this.success = success;}public void setMessage(String message) {this.message = message;}public void setObject(Object object) {this.object = object;}public void setFeignHystrix(boolean feignHystrix) {this.feignHystrix = feignHystrix;}@Overridepublic String toString() {return "ResultWrapper [success=" + success + ", message=" + message + ", object=" + object + "]";}@FunctionalInterfacepublic interface CacheHandler {void cache();}
}