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Java project for nami
There is a newer version: 3.0.0-M4
/*
 * Copyright 2017-2024 noear.org and authors
 *
 * 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
 *
 *      https://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 org.noear.nami;

import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.AbstractMap;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * 代理调用结果
 *
 * @author noear
 * @since 1.2
 * */
public class Result {
    /**
     * 状态码
     */
    private int code;
    /**
     * 头信息
     */
    private List> headers;
    /**
     * 编码
     */
    private Charset charset;
    /**
     * 返回体
     */
    private byte[] body;
    /**
     * 返回体的字符串形式
     */
    private String bodyString;

    public Result() {
        headers = new ArrayList<>();
    }

    public Result(Charset charset, byte[] body) {
        this();
        this.charset = charset;
        this.body = body;
    }

    public Result(int code, byte[] body) {
        this();
        this.code = code;
        this.charset = StandardCharsets.UTF_8;
        this.body = body;
    }

    //////////////////
    //////////////////
    //////////////////


    public void headerAdd(String name, String value) {
        headers.add(new AbstractMap.SimpleEntry<>(name, value));
    }

    public String headerGet(String name) {
        if (name != null) {
            for (Map.Entry kv : headers) {
                if (name.equals(kv.getKey())) {
                    return kv.getValue();
                }
            }
        }

        return null;
    }

    public void charsetSet(Charset charset) {
        this.charset = charset;
    }

    //////////////////
    //////////////////
    //////////////////

    /**
     * 头信息
     */
    public Iterable> headers() {
        return headers;
    }

    /**
     * 状态码
     */
    public int code() {
        return code;
    }

    /**
     * 字符集
     */
    public Charset charset() {
        return charset;
    }

    /**
     * 返回体
     */
    public byte[] body() {
        return body;
    }

    /**
     * 返回体字符形式
     */
    public String bodyAsString() {
        if (bodyString == null) {
            if (charset == null) {
                bodyString = new String(body);
            } else {
                bodyString = new String(body, charset);
            }

            //清掉body
            body = null;
        }

        if (code >= 400) {
            throw new IllegalStateException(code + " 错误：" + bodyString);
        } else {
            return bodyString;
        }
    }
}