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From: =?UTF-8?Q?Arne_Vajh=c3=b8j?= <arne@vajhoej.dk>
Newsgroups: comp.lang.java.programmer
Subject: Re: Is it possible to send message bursts?
Date: Mon, 2 Jan 2023 10:42:35 -0500
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On 1/2/2023 5:10 AM, mike wrote:
> I am reading data from an inputstream. To test the function
> I use a String that I convert to a byte array and the to a Stream.
> using the following:
>   return new ByteArrayInputStream(message.getBytes());
> 
> I am reading in a loop like this:
> 
> int character = 1;
> 		try (BufferedInputStream bis = new BufferedInputStream(inputStream)) {
> 			while (running) {
> 				if (!suspended)
> 					character = bis.read();
> 
> 
> Problem is when I test this is that I want to send message that first
> has some data and then no data giving making read() return -1 and
> then data again. Is it possible to create an inputstream that
> supports this behaviour?
I don't understand. read() is a blocking method, so if there
is no input it blocks until there is input. It returns -1
if end of stream is reached (and stream is then invalid and
no point in calling read again).

You can easily write am InputStream class that pause a bit before
returning from read(), but does that really make sense?

Arne