package cn.iocoder.yudao.module.hrm.service.employee.contract;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.ByteArrayInputStream;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* 字节数组版 MultipartFile：把内存中的字节包装成 MultipartFile，
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* 便于复用 system 的 SystemStorageBlobService.upload(...) 存储文件并拿到 blobId。
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*/
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public class ByteArrayMultipartFile implements MultipartFile {
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private final String name;
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private final String originalFilename;
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private final String contentType;
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private final byte[] content;
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public ByteArrayMultipartFile(String name, String originalFilename, String contentType, byte[] content) {
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this.name = name;
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this.originalFilename = originalFilename;
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this.contentType = contentType;
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this.content = content == null ? new byte[0] : content;
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}
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@Override
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public String getName() {
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return name;
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}
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@Override
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public String getOriginalFilename() {
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return originalFilename;
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}
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@Override
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public String getContentType() {
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return contentType;
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}
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@Override
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public boolean isEmpty() {
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return content.length == 0;
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}
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@Override
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public long getSize() {
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return content.length;
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}
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@Override
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public byte[] getBytes() {
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return content;
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}
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@Override
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public InputStream getInputStream() {
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return new ByteArrayInputStream(content);
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}
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@Override
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public void transferTo(File dest) throws IOException {
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try (FileOutputStream fos = new FileOutputStream(dest)) {
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fos.write(content);
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}
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}
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}
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