Examples of org.eclipse.jetty.util.Callback

org.eclipse.jetty.util.Callback

A callback abstraction that handles completed/failed events of asynchronous operations.

Semantically this is equivalent to an optimise Promise<Void>, but callback is a more meaningful name than EmptyPromise

     * @param content The content to send
     * @param callback The callback to use to notify success or failure
     */
    public void sendContent(ByteBuffer content, final Callback callback)
    {
        write(content,true,new Callback()
        {
            @Override
            public void succeeded()
            {
                closed();

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                        completeLatch.countDown();
                    }
                });


        Assert.assertTrue(contentLatch.get().await(5, TimeUnit.SECONDS));
        Callback callback = callbackRef.get();


        // Wait a while to be sure that the parsing does not proceed.
        TimeUnit.MILLISECONDS.sleep(1000);


        Assert.assertEquals(1, contentCount.get());


        // Succeed the content callback to proceed with parsing.
        callbackRef.set(null);
        contentLatch.set(new CountDownLatch(1));
        callback.succeeded();


        Assert.assertTrue(contentLatch.get().await(5, TimeUnit.SECONDS));
        callback = callbackRef.get();


        // Wait a while to be sure that the parsing does not proceed.
        TimeUnit.MILLISECONDS.sleep(1000);


        Assert.assertEquals(2, contentCount.get());
        Assert.assertEquals(1, completeLatch.getCount());


        // Succeed the content callback to proceed with parsing.
        callbackRef.set(null);
        contentLatch.set(new CountDownLatch(1));
        callback.succeeded();


        Assert.assertTrue(completeLatch.await(5, TimeUnit.SECONDS));
        Assert.assertEquals(2, contentCount.get());
    }

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            if (request.isAsyncSupported() && 
                min_async_size>0 &&
                resource.length()>=min_async_size)
            {
                final AsyncContext async = request.startAsync();
                Callback callback = new Callback()
                {
                    @Override
                    public void succeeded()
                    {
                        async.complete();

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                buffer = new byte[length];
                content.get(buffer);
                offset = 0;
            }


            onResponseContent(request, response, proxyResponse, buffer, offset, length, new Callback()
            {
                @Override
                public void succeeded()
                {
                    callback.succeeded();

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        protected void complete()
        {
            buffer = null;
            offset = 0;
            length = 0;
            Callback c = callback;
            callback = null;
            state = WriteState.IDLE;
            // Call the callback only after the whole state has been reset,
            // because the callback may trigger a reentrant call and
            // the state must already be the new one that we reset here.
            c.succeeded();
        }

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        public void succeeded()
        {
            recycle();
            for (int i = 0; i < callbacks.size(); ++i)
            {
                Callback callback = callbacks.get(i);
                if (callback != null)
                    callback.succeeded();
            }
        }

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        public void failed(Throwable x)
        {
            recycle();
            for (int i = 0; i < callbacks.size(); ++i)
            {
                Callback callback = callbacks.get(i);
                if (callback != null)
                    callback.failed(x);
            }
        }

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            {
                callback.succeeded();
            }
            else
            {
                Callback partial = new Callback.Adapter()
                {
                    @Override
                    public void failed(Throwable x)
                    {
                        callback.failed(x);

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        @Override
        public void onOpen()
        {
            super.onOpen();
            final int remaining = buffer.remaining();
            write(getConnection().getEndPoint(), buffer, new Callback()
            {
                @Override
                public void succeeded()
                {
                    if (LOG.isDebugEnabled())

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                info = _response.newResponseMetaData();
            commit(info);
            
            // wrap callback to process 100 responses
            final int status=info.getStatus();
            final Callback committed = (status<200&&status>=100)?new Commit100Callback(callback):new CommitCallback(callback);


            // committing write
            _transport.send(info, _request.isHead(), content, complete, committed);
        }
        else if (info==null)

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