public void run()

in iothub/device/iot-device-client/src/main/java/com/microsoft/azure/sdk/iot/device/transport/IotHubReceiveTask.java [45:104]
42 lines of code
11 McCabe index (conditional complexity)

    public void run()
    {
        String threadName = "";
        if (this.useIdentifiableThreadNames)
        {
            String deviceClientId = this.transport.getDeviceClientUniqueIdentifier();
            String connectionId = transport.getTransportConnectionId();
            threadName += deviceClientId + "-" + "Cxn" + connectionId + "-" + THREAD_NAME;
        }
        else
        {
            if (this.threadNamePrefix != null && !this.threadNamePrefix.isEmpty())
            {
                threadName += this.threadNamePrefix;
            }

            threadName += THREAD_NAME;

            if (this.threadNameSuffix != null && !this.threadNameSuffix.isEmpty())
            {
                threadName += this.threadNameSuffix;
            }
        }

        Thread.currentThread().setName(threadName);

        try
        {
            // HTTP is the only protocol where the SDK must actively poll for received messages. Because of that, never
            // wait on the IoTHubTransport layer to notify this thread that a received message is ready to be handled.
            if (this.transport.getProtocol() != IotHubClientProtocol.HTTPS)
            {
                if (!this.transport.hasReceivedMessagesToHandle() && !this.transport.isClosed())
                {
                    // IotHubTransport layer will make this semaphore available to acquire only once a received message
                    // is ready to be handled. Once it is made available to acquire, this thread will
                    // wake up and handle the received messages. Until then, do nothing.
                    //
                    // Note that this thread is not expected to release the semaphore once it is done handling messages.
                    // This semaphore is not acquired to safely modify shared resources, but instead is used to signal
                    // when to start working. It is more akin to the basic Java wait/notify pattern, but without the
                    // order of operations dependency that wait/notify has.
                    this.receiveThreadSemaphore.acquire();
                }
            }

            this.transport.handleMessage();

        }
        catch (InterruptedException e)
        {
            // Typically happens if a disconnection event occurs and the DeviceIO layer cancels the send/receive threads
            // while the reconnection takes place.
            log.trace("Interrupted while waiting for work. Thread is now ending.");
        }
        catch (Throwable e)
        {
            log.warn("Receive task thread encountered exception while processing received messages", e);
        }
    }