package cn.gistack.resource.vo;

import org.springframework.web.multipart.MultipartFile;

import java.io.*;

public class MyMultipartFile implements MultipartFile {

	private String contentType;

	private String originalFilename;

	private String name;

	private byte[] bytes;

	public MyMultipartFile(){}

	public MyMultipartFile(String name, String originalFilename, String contentType, byte[] bytes){
		this.bytes = bytes;
		this.name = name;
		this.originalFilename = originalFilename;
		this.contentType = contentType;
	}
	@Override
	public String getName() {
		return this.name;
	}

	@Override
	public String getOriginalFilename() {
		return this.originalFilename;
	}

	@Override
	public String getContentType() {
		return this.contentType;
	}

	@Override
	public boolean isEmpty() {
		return this.bytes == null || this.bytes.length == 0;
	}

	@Override
	public long getSize() {
		return this.bytes.length;
	}

	@Override
	public byte[] getBytes() throws IOException {
		return this.bytes;
	}

	@Override
	public InputStream getInputStream() throws IOException {
		return new ByteArrayInputStream(this.bytes);
	}

	@Override
	@SuppressWarnings("resource")
	public void transferTo(File dest) throws IOException, IllegalStateException {
		new FileOutputStream(dest).write(bytes);
	}
}