Refactoring generic message components to awips namespace

wxdata/source/scwx/awips/message.cpp

@@ -0,0 +1,67 @@
+#include <scwx/awips/message.hpp>
+
+#include <boost/log/trivial.hpp>
+
+namespace scwx
+{
+namespace awips
+{
+
+static const std::string logPrefix_ = "[scwx::awips::message] ";
+
+class MessageImpl
+{
+public:
+   explicit MessageImpl() {};
+   ~MessageImpl() = default;
+};
+
+Message::Message() : p(std::make_unique<MessageImpl>()) {}
+Message::~Message() = default;
+
+Message::Message(Message&&) noexcept = default;
+Message& Message::operator=(Message&&) noexcept = default;
+
+bool Message::ValidateMessage(std::istream& is, size_t bytesRead) const
+{
+   bool messageValid = true;
+
+   const size_t dataSize = data_size();
+
+   if (is.eof())
+   {
+      BOOST_LOG_TRIVIAL(warning) << logPrefix_ << "Reached end of data stream";
+      messageValid = false;
+   }
+   else if (is.fail())
+   {
+      BOOST_LOG_TRIVIAL(warning)
+         << logPrefix_ << "Could not read from input stream";
+      messageValid = false;
+   }
+   else if (bytesRead != dataSize)
+   {
+      is.seekg(static_cast<std::streamoff>(dataSize) -
+                  static_cast<std::streamoff>(bytesRead),
+               std::ios_base::cur);
+
+      if (bytesRead < dataSize)
+      {
+         BOOST_LOG_TRIVIAL(trace)
+            << logPrefix_ << "Message contents smaller than size: " << bytesRead
+            << " < " << dataSize << " bytes";
+      }
+      if (bytesRead > dataSize)
+      {
+         BOOST_LOG_TRIVIAL(warning)
+            << logPrefix_ << "Message contents larger than size: " << bytesRead
+            << " > " << dataSize << " bytes";
+         messageValid = false;
+      }
+   }
+
+   return messageValid;
+}
+
+} // namespace awips
+} // namespace scwx