com.alibaba.nacos.api.exception.NacosException Maven / Gradle / Ivy
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alibaba.nacos.api.exception;
import com.alibaba.nacos.api.common.Constants;
import com.alibaba.nacos.api.utils.StringUtils;
/**
* Nacos Exception.
*
* @author Nacos
*/
public class NacosException extends Exception {
/**
* serialVersionUID.
*/
private static final long serialVersionUID = -3913902031489277776L;
private int errCode;
private String errMsg;
private Throwable causeThrowable;
public NacosException() {
}
public NacosException(final int errCode, final String errMsg) {
super(errMsg);
this.errCode = errCode;
this.errMsg = errMsg;
}
public NacosException(final int errCode, final Throwable throwable) {
super(throwable);
this.errCode = errCode;
this.setCauseThrowable(throwable);
}
public NacosException(final int errCode, final String errMsg, final Throwable throwable) {
super(errMsg, throwable);
this.errCode = errCode;
this.errMsg = errMsg;
this.setCauseThrowable(throwable);
}
public int getErrCode() {
return this.errCode;
}
public String getErrMsg() {
if (!StringUtils.isBlank(this.errMsg)) {
return this.errMsg;
}
if (this.causeThrowable != null) {
return this.causeThrowable.getMessage();
}
return Constants.NULL;
}
public void setErrCode(final int errCode) {
this.errCode = errCode;
}
public void setErrMsg(final String errMsg) {
this.errMsg = errMsg;
}
public void setCauseThrowable(final Throwable throwable) {
this.causeThrowable = this.getCauseThrowable(throwable);
}
private Throwable getCauseThrowable(final Throwable t) {
if (t.getCause() == null) {
return t;
}
return this.getCauseThrowable(t.getCause());
}
@Override
public String toString() {
return "ErrCode:" + getErrCode() + ", ErrMsg:" + getErrMsg();
}
/*
* client error code.
* -400 -503 throw exception to user.
*/
/**
* invalid param（参数错误）.
*/
public static final int CLIENT_INVALID_PARAM = -400;
/**
* client disconnect.
*/
public static final int CLIENT_DISCONNECT = -401;
/**
* over client threshold（超过client端的限流阈值）.
*/
public static final int CLIENT_OVER_THRESHOLD = -503;
/*
* server error code.
* 400 403 throw exception to user
* 500 502 503 change ip and retry
*/
/**
* invalid param（参数错误）.
*/
public static final int INVALID_PARAM = 400;
/**
* no right（鉴权失败）.
*/
public static final int NO_RIGHT = 403;
/**
* not found.
*/
public static final int NOT_FOUND = 404;
/**
* conflict（写并发冲突）.
*/
public static final int CONFLICT = 409;
/**
* server error（server异常，如超时）.
*/
public static final int SERVER_ERROR = 500;
/**
* client error（client异常，返回给服务端）.
*/
public static final int CLIENT_ERROR = -500;
/**
* bad gateway（路由异常，如nginx后面的Server挂掉）.
*/
public static final int BAD_GATEWAY = 502;
/**
* over threshold（超过server端的限流阈值）.
*/
public static final int OVER_THRESHOLD = 503;
/**
* Server is not started.
*/
public static final int INVALID_SERVER_STATUS = 300;
/**
* Connection is not registered.
*/
public static final int UN_REGISTER = 301;
/**
* No Handler Found.
*/
public static final int NO_HANDLER = 302;
public static final int RESOURCE_NOT_FOUND = -404;
/**
* http client error code, ome exceptions that occurred when there use the Nacos RestTemplate and Nacos
* AsyncRestTemplate.
*/
public static final int HTTP_CLIENT_ERROR_CODE = -500;
}