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javaapache-commons-vfs

How to upload byte array using apache common vfs


I am stuck in uploading byte array using apache common vfs, below is the example uploading file using filepath, I googled but I am not getting the solution for file upload using byte array

    public static boolean upload(String localFilePath, String remoteFilePath) {
    boolean result = false;
    File file = new File(localFilePath);
    if (!file.exists())
        throw new RuntimeException("Error. Local file not found");

    try (StandardFileSystemManager manager = new StandardFileSystemManager();
            // Create local file object
            FileObject localFile = manager.resolveFile(file.getAbsolutePath());

            // Create remote file object
            FileObject remoteFile = manager.resolveFile(
                    createConnectionString(hostName, username, password, remoteFilePath),
                    createDefaultOptions());) {

        manager.init();

        // Copy local file to sftp server
        remoteFile .copyFrom(localFile, Selectors.SELECT_SELF);
        result = true;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    return result;
}

The above example it took from here

and it is working fine.

Below is the code for uploading byte array using FTPSClient

 private boolean uploadFtp(FTPSClient ftpsClient, byte[] fileData, String fileName) {

 boolean completed = false;
 byte[] bytesIn = new byte[4096];
 try (InputStream inputStream = new ByteArrayInputStream(fileData); OutputStream outputStream =
  ftpsClient.storeFileStream(fileName);) {
  int read = 0;

  while ((read = inputStream.read(bytesIn)) != -1) {
   outputStream.write(bytesIn, 0, read);
  }

  completed = ftpsClient.completePendingCommand();
  if (completed) {
   logger.info("File uploaded successfully societyId");
  }

 } catch (IOException e) {
 logger.error("Error while uploading file to ftp server", e);
 }

 return completed;
}

Solution

  • See e.g. Example 6 on https://www.programcreek.com/java-api-examples/?api=org.apache.commons.vfs.FileContent:

    /**
     * Write the byte array to the given file.
     *
     * @param file The file to write to
     * @param data The data array
     * @throws IOException
     */
    
    public static void writeData(FileObject file, byte[] data)
            throws IOException {
        OutputStream out = null;
        try {
            FileContent content = file.getContent();
            out = content.getOutputStream();
            out.write(data);
        } finally {
            close(out);
        }
    }