package com.lianjia.infrastructure.web.essential.model;
import com.fasterxml.jackson.annotation.*;
import lombok.*;
import lombok.experimental.Accessors;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
/**
* 统一应答对象
*
* @author zhaohui
*/
@Data
@Accessors(chain = true)
@JsonIgnoreProperties(ignoreUnknown = true)
@JsonInclude(JsonInclude.Include.NON_EMPTY)
public class ResponseResult<T> implements Serializable {
public static final String ERROR_CODE_SUCCESS = "0";
@JsonProperty("errno")
private String errorCode;
@JsonProperty("errmsg")
private String errorMessage;
@JsonProperty("data")
private T data;
@JsonIgnore
private final Map<String, Object> attachments = new HashMap<>();
/**
* 直接返回成功
*
* @return 应答对象
*/
public static ResponseResult<Void> success() {
val result = new ResponseResult<Void>();
result.setErrorCode(ERROR_CODE_SUCCESS);
result.setErrorMessage("");
return result;
}
/**
* 返回成功，并携带一个应答数据对象
*
* @param data 应答数据对象
* @param <T> 数据对象泛型
* @return 应答对象
*/
public static <T> ResponseResult<T> success(T data) {
val result = new ResponseResult<T>();
result.setErrorCode(ERROR_CODE_SUCCESS);
result.setErrorMessage("");
return result.setData(data);
}
/**
* 返回成功，携带一个应答数据对象，并允许扩展额外的应答扩展状态
*
* @param data 应答数据对象
* @param attachments 应答扩展状态
* @param <T> 数据对象泛型
* @return 应答对象
*/
public static <T> ResponseResult<T> success(T data, Map<String, Object> attachments) {
val result = success(data);
result.getAttachments().putAll(attachments);
return result;
}
/**
* 返回失败，携带错误码和错误消息
*
* @param code 错误码
* @param message 消息
* @return 应答对象
*/
public static ResponseResult<Void> error(@NonNull String code, @NonNull String message) {
val result = new ResponseResult<Void>();
result.setErrorCode(code);
result.setErrorMessage(message);
return result;
}
public static ResponseResult<Void> error(@NonNull String code, @NonNull String message, Map<String, Object> attachments) {
val result = error(code, message);
result.getAttachments().putAll(attachments);
return result;
}
@JsonAnySetter
public void setAttachment(String key, String value) {
attachments.put(key, value);
}
@JsonAnyGetter
public Map<String, Object> getAttachments() {
return attachments;
}
}
