cn.novelweb.tool.upload.fastdfs.exception.FastDfsServerException Maven / Gradle / Ivy

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package cn.novelweb.tool.upload.fastdfs.exception;

import cn.novelweb.tool.upload.fastdfs.constant.ErrorCodeConstants;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

/**
 * 快速Dfs服务器异常
 * 2020-02-03 16:20
 *
 * @author LiZW
 **/
public class FastDfsServerException extends FastDfsException {

    /**
     * 错误对照表
     */
    private static final Map CODE_MESSAGE_MAPPING;

    static {
        Map mapping = new HashMap();
        mapping.put((int) ErrorCodeConstants.ERR_NO_ENOENT, "找不到节点或文件");
        mapping.put((int) ErrorCodeConstants.ERR_NO_EIO, "服务端发生io异常");
        mapping.put((int) ErrorCodeConstants.ERR_NO_EINVAL, "无效的参数");
        mapping.put((int) ErrorCodeConstants.ERR_NO_EBUSY, "服务端忙");
        mapping.put((int) ErrorCodeConstants.ERR_NO_ENOSPC, "没有足够的存储空间");
        mapping.put((int) ErrorCodeConstants.ERR_NO_CONNREFUSED, "服务端拒绝连接");
        mapping.put((int) ErrorCodeConstants.ERR_NO_EALREADY, "文件已经存在？");
        CODE_MESSAGE_MAPPING = Collections.unmodifiableMap(mapping);
    }

    private int errorCode;

    private FastDfsServerException(int errorCode, String message) {
        super(message);
        this.errorCode = errorCode;
    }

    public static FastDfsServerException byCode(int errorCode) {
        String message = CODE_MESSAGE_MAPPING.get(errorCode);
        if (message == null) {
            message = "未知错误";
        }
        message = "错误码：" + errorCode + "，错误信息：" + message;
        return new FastDfsServerException(errorCode, message);
    }

    public int getErrorCode() {
        return errorCode;
    }

}