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Android Http Core Library

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package com.cmonbaby.http.exception;

import retrofit2.Response;

/**
 * Author:      Simon
 * 
QO:          8950764
 * 
Email:       [email protected]
 * 
WebSize:     https://www.cmonbaby.com
 * 
Version:     1.0.0
 * 
Date:        2020/12/28
 * Description: Exception for an unexpected, non-2xx HTTP response.
 */
public final class HttpException extends Exception {

    private static String getMessage(Response response) {
        if (response == null) throw new NullPointerException("response == null");
        return "HTTP " + response.code() + " " + response.message();
    }

    private final int code;
    private final String message;
    private final transient Response response;

    public HttpException(Response response) {
        super(getMessage(response));
        this.code = response.code();
        this.message = response.message();
        this.response = response;
    }

    /**
     * HTTP status code.
     */
    public int code() {
        return code;
    }

    /**
     * HTTP status message.
     */
    public String message() {
        return message;
    }

    /**
     * The full HTTP response. This may be null if the exception was serialized.
     */
    public Response response() {
        return response;
    }
}