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package org.aoju.bus.http.bodys;

import org.aoju.bus.core.io.source.BufferSource;
import org.aoju.bus.core.lang.MediaType;

/**
 * 响应体只能使用一次
 *
 * @author Kimi Liu
 * @since Java 17+
 */
public class RealResponseBody extends ResponseBody {

    /**
     * 使用字符串避免在需要时才解析内容类型
     * 这也避免了由格式不正确的内容类型引起的问题
     */
    private final String mediaType;
    private final long length;
    private final BufferSource source;

    public RealResponseBody(
            String mediaType, long length, BufferSource source) {
        this.mediaType = mediaType;
        this.length = length;
        this.source = source;
    }

    @Override
    public MediaType mediaType() {
        return null != mediaType ? MediaType.valueOf(mediaType) : null;
    }

    @Override
    public long length() {
        return length;
    }

    @Override
    public BufferSource source() {
        return source;
    }

}