CODEWITHSUNDEEP
androidhttpuploadhttpclientput
degratnik
degratnik

Reputation: 830

How to upload on http server part of file using POST or PUT? Can I use described solution?

I have a task. Upload on http server part of a file (I must skip beginning of the file).

How can I do it. Do you know good solution?

Can I use my own solution? Is it safe?

My solution. I made subclass of FileEntity that gives file stream and skips beginning of the file.

  1. I put my entity to request.

    HttpPut request = new HttpPut(this.uri);

    request.setEntity(new FileOfsetEntity(new File(getDestination()), "binary/octet-stream", ofset));

  2. My FileOfsetEntity skips begining of the file.

    class FileOfsetEntity extends FileEntity {

long ofset = 0;
public FileOfsetEntity(File file, String contentType, long ofset) {
  super(file, contentType);
  this.ofset = ofset;
}
@Override
public long getContentLength() {
  return this.file.length() - ofset;
}
@Override
public InputStream getContent() throws IOException {
  FileInputStream in = new FileInputStream(this.file);
  long skiped = in.skip(ofset);
  Log.w("FileOfsetEntity.getContent","skiped = " + skiped);
  return in;
}
@Override
public void writeTo(final OutputStream outstream) throws IOException {
  if (outstream == null) {
      throw new IllegalArgumentException("Output stream may not be null");
  }
  InputStream instream = new FileInputStream(this.file);
  long skiped = instream.skip(ofset);
  Log.w("FileOfsetEntity.writeTo","skiped = " + skiped);
  try {
      byte[] tmp = new byte[4096];
      int l;
      long readed = skiped;
      while ((l = instream.read(tmp)) != -1) {
          readed += l;
          outstream.write(tmp, 0, l);
          Log.v("FileOfsetEntity.writeTo",file.getAbsolutePath() + " readed = " + readed + " skiped = " + skiped);
      }
      outstream.flush();
  } finally {
      instream.close();
  } }}

Upvotes: 0

Views: 845

Answers (1)

Vinay
Vinay

Reputation: 2415

I am not sure this may fail or go through.

I would suggest, a different way of doing this. I presume that you know the office before uploading.

Here is a link to upload file to server.

In this code, move your offset and then start writing it into the stream.

Upvotes: 1

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