Looking for java and c library

[barny1996]

Hello. My name is Barnabas Madai.

I am new to the forum.

I am searching for java and c library to convert a list of files into a byte array and back to files. For example, I have read that in the ntfs file system, metadata is stored in 1kb blocks, the byte array should contain such information, and recover the files completely (metadata and data) at the call of an appropriate function, provided the byte array.

Is there such a library?

Alternatively, pointed to a guide as to how I can extract this information is welcome.

I can convert multiple files into a single file easily, but I can only account for length,directory and data.

Any help is appreciated

 

[Sgraffite]

Do you already have the files and lengths somewhere and need to extract them into individual files? Not totally clear what you have to start with.

 

[Ken g6]

It sounds like you want an archiver. Here's a library that includes archivers:

Overview – Apache Commons Compress

If you insist that the archive not be compressed, "tar" is a good format.

 

[barny1996]

Do you already have the files and lengths somewhere and need to extract them into individual files? Not totally clear what you have to start with.

Hello.

No, I prefer a library to do both the conversion to a byte array and the conversion back to files.

 

[manly]

Depends on what you need to do. For just the basics, you can do this with classic Java I/O. So write your own little "library" to make it user friendly.

Byte Streams (The Java™ Tutorials > Essential Java Classes > Basic I/O)

Managing Metadata (File and File Store Attributes) (The Java™ Tutorials > Essential Java Classes > Basic I/O)

Even better if you find something ready to use on GitHub.

 

[barny1996]

It sounds like you want an archiver. Here's a library that includes archivers:

Overview – Apache Commons Compress

If you insist that the archive not be compressed, "tar" is a good format.

Thank you