package org.springblade.mdm.utils;
import java.io.*;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
public class CustomBinaryWriter {
	static final byte[] MAGIC_NUMBER = {'M', 'D', 'M', '1'};
	static final short VERSION = 1;

	/**
	 * 将输入流中的内容写入输出流
	 * @param outputStream
	 * @param ins
	 * @throws IOException
	 */
	public static void write(OutputStream outputStream, InputStream ins) throws IOException {
		byte[] buffer = new byte[1024];
		try (DataOutputStream out = new DataOutputStream(outputStream)) {

			// 写入文件头
			out.write(MAGIC_NUMBER);
			out.writeShort(VERSION);

			while(ins.read(buffer) != -1) {
				out.write(buffer);
			}

		}
	}
}