Java InputStream. Read (byte [], int, int) method, how to block until the exact number of bytes is read

I am writing a simple client / server network application to send and receive fixed size messages through TCP sockets

So far, I have been using the Socket class getInputStream () and getOutputStream () method to get the stream, and then call the InputStream class read (byte [] B, int off, int len) to read 60 bytes (this is the size of the message).

Later, I read the Javadoc of this method:

I wonder if there is any Java "out of the box" solution to block until len bytes are read and wait forever if necessary

I can obviously create a simple loop, but I think I'm reshaping the wheel Can you suggest a clean Java aware solution?

Solution

Use datainputstream readFully. This is Javadoc

InputStream in = ...
DataInputStream dis = new DataInputStream( in );
byte[] array = ...

dis.readFully( array );