Examples of org.eclipse.jetty.client.util.InputStreamContentProvider$InputStreamIterator

org.eclipse.jetty.client.util.InputStreamContentProvider
Iterating over an {@link InputStream} is tricky, because {@link #hasNext()} must return falseif the stream reads -1. However, we don't know what to return until we read the stream, which means that stream reading must be performed by {@link #hasNext()}, which introduces a side-effect on what is supposed to be a simple query method (with respect to the Query Command Separation Principle).
Alternatively, we could return {@code true} from {@link #hasNext()} even if we don't know thatwe will read -1, but then when {@link #next()} reads -1 it must return an empty buffer.However this is problematic, since GETs with no content indication would become GET with chunked content, and not understood by servers.
Therefore we need to make sure that {@link #hasNext()} does not perform any side effect (so thatit can be called multiple times) until {@link #next()} is called.


        final CountDownLatch latch = new CountDownLatch(1);
        final byte[] content = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
        Request request = client.newRequest("localhost", connector.getLocalPort())
                .scheme(scheme)
                .content(new InputStreamContentProvider(new ByteArrayInputStream(content)))
                .timeout(2 * timeout, TimeUnit.MILLISECONDS);
        request.send(new BufferingResponseListener()
        {
            @Override
            public void onComplete(Result result)

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        InputStream input = new ByteArrayInputStream("content".getBytes(StandardCharsets.UTF_8));


        ContentResponse response = client.newRequest("localhost", 8080)
                // Provide the content as InputStream
                .content(new InputStreamContentProvider(input))
                .send();


        Assert.assertEquals(200, response.getStatus());
    }

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        });


        final byte[] data = new byte[]{0, 1, 2, 3};
        client.newRequest("localhost", connector.getLocalPort())
                .scheme(scheme)
                .content(new InputStreamContentProvider(new InputStream()
                {
                    private int index = 0;


                    @Override
                    public int read() throws IOException

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            {
                super.close();
                closeLatch.countDown();
            }
        };
        InputStreamContentProvider content = new InputStreamContentProvider(stream);


        final CountDownLatch completeLatch = new CountDownLatch(1);
        client.newRequest("0.0.0.1", connector.getLocalPort())
                .scheme(scheme)
                .content(content)

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            {
                super.close();
                closeLatch.countDown();
            }
        };
        InputStreamContentProvider provider = new InputStreamContentProvider(stream, 1);


        final CountDownLatch completeLatch = new CountDownLatch(1);
        client.newRequest("localhost", connector.getLocalPort())
                .scheme(scheme)
                .content(provider)

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