Initial commit

Lts/Proxies/HighLevelArchitecture/Apache/socketreader.cpp

@@ -0,0 +1,86 @@
+/**
+  * @RDE_HEADER@
+  * Access Data from TRIMBLE and emit contents as QByteArray
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#include "socketreader.h"
+
+#include <NGLLogger/NGLLoggerBootstrap.h>
+
+#include <QtNetwork/QTcpSocket>
+#include <QtCore/QTimer>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QMetaEnum>
+
+namespace HighLevelArchitecture {
+
+SocketReader::SocketReader(QObject *parent)
+  : QThread(parent)
+  , m_socket(new QTcpSocket(this))
+  , m_hlaRequestIdentifier(0)
+  , m_logger(NGL::NGLLoggerBootstrap::getNGLRootLogger().getNGLLogger("SocketReader"))
+{
+}
+
+bool SocketReader::init(const QString &host, quint16 port, int hlaRequestIdentifier)
+{
+  DEBUG_LOG(m_logger) << "SR " << hlaRequestIdentifier << ": Trying to establish connection to " << host << ":" << port;
+
+  m_hlaRequestIdentifier = hlaRequestIdentifier;
+  connect(m_socket, SIGNAL(readyRead()), this, SLOT(onReadyRead()));
+  connect(m_socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(onSocketError(QAbstractSocket::SocketError)));
+
+  m_socket->connectToHost(host, port, QIODevice::ReadOnly);
+  return m_socket->waitForConnected(1000);
+}
+
+SocketReader::~SocketReader()
+{
+  m_socket->disconnectFromHost();
+  // Gracely try to disconnect. If not successfull within 1000msecs, abort the socket.
+  if (m_socket->state() != QAbstractSocket::UnconnectedState &&
+      !m_socket->waitForDisconnected(1000))
+    m_socket->abort();
+
+  delete m_socket;
+  m_socket = 0;
+}
+
+void SocketReader::onReadyRead()
+{
+  // Checked if this works and the whole chunk is read.
+  // No problems in extensive testing.
+  // Otherwise, we had to inspect the data and search for start and ending!
+  DEBUG_LOG(m_logger) << "SR "<< m_hlaRequestIdentifier << ": Data received, transmitting";
+  QByteArray ba(m_socket->readAll());
+  TRACE_LOG(m_logger) << "SR "<< m_hlaRequestIdentifier << ": Data contents: " << ba.constData();
+  emit newData(ba, m_hlaRequestIdentifier);
+}
+
+void SocketReader::stopThread()
+{
+  QTimer::singleShot(0, this, SLOT(quit()));
+  while (!isFinished())
+    QCoreApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
+  deleteLater();
+}
+
+void SocketReader::onSocketError(const QAbstractSocket::SocketError &error)
+{
+  QString errorValue;
+  QMetaObject meta = QAbstractSocket::staticMetaObject;
+  for (int i=0; i < meta.enumeratorCount(); ++i) {
+    QMetaEnum m = meta.enumerator(i);
+    if (QString::fromLatin1(m.name()) == QLatin1String("SocketError")) {
+      errorValue = QLatin1String(m.valueToKey(error));
+      break;
+    }
+  }
+
+  ERROR_LOG(m_logger) << "SR "<< m_hlaRequestIdentifier << ": Socket Error: " << errorValue;
+}
+
+} // namespace HLA