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package io.magician.common.util;

import java.io.ByteArrayOutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.WritableByteChannel;

/**
 * 读取工具类
 */
public class ReadUtil {

    /**
     * byteBuffer转outputStream
     * @param byteBuffer
     * @param outputStream
     * @throws Exception
     */
    public static void byteBufferToOutputStream(ByteBuffer byteBuffer, ByteArrayOutputStream outputStream) throws Exception {
        byteBuffer.flip();
        byte[] bytes = new byte[byteBuffer.limit()];
        byteBuffer.get(bytes, 0, byteBuffer.limit());
        outputStream.write(bytes);
        byteBuffer.clear();
    }
}