From: Mathias Froehlich <Mathias.Froehlich@web.de>
Date: Tue, 4 Oct 2011 18:21:12 +0000 (+0200)
Subject: hla: provide a data type visitor building a default data element tree.
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=595328963a34ba8040d16e825f89973d70ad8b3d;p=simgear.git

hla: provide a data type visitor building a default data element tree.
---

diff --git a/simgear/hla/CMakeLists.txt b/simgear/hla/CMakeLists.txt
index 207210ab..a822fc24 100644
--- a/simgear/hla/CMakeLists.txt
+++ b/simgear/hla/CMakeLists.txt
@@ -32,6 +32,7 @@ set(HLA_SOURCES
     HLABasicDataType.cxx
     HLADataElement.cxx
     HLADataType.cxx
+    HLADataTypeVisitor.cxx
     HLAEnumeratedDataElement.cxx
     HLAEnumeratedDataType.cxx
     HLAFederate.cxx
diff --git a/simgear/hla/HLADataTypeVisitor.hxx b/simgear/hla/HLADataTypeVisitor.hxx
index d3cd9b22..2af1012c 100644
--- a/simgear/hla/HLADataTypeVisitor.hxx
+++ b/simgear/hla/HLADataTypeVisitor.hxx
@@ -24,7 +24,7 @@
 #include <simgear/math/SGMath.hxx>
 #include "HLAArrayDataType.hxx"
 #include "HLABasicDataType.hxx"
-#include "HLADataTypeVisitor.hxx"
+#include "HLADataElement.hxx"
 #include "HLAEnumeratedDataType.hxx"
 #include "HLAFixedRecordDataType.hxx"
 #include "HLAVariantDataType.hxx"
@@ -629,6 +629,43 @@ inline void HLADataTypeEncodeVisitor::apply(const HLAVariableArrayDataType& data
     dataType.getSizeDataType()->accept(numElementsVisitor);
 }
 
+/// Generate standard data elements according to the traversed type
+class HLADataElementFactoryVisitor : public HLADataTypeVisitor {
+public:
+    virtual ~HLADataElementFactoryVisitor();
+
+    virtual void apply(const HLADataType& dataType);
+
+    virtual void apply(const HLAInt8DataType& dataType);
+    virtual void apply(const HLAUInt8DataType& dataType);
+    virtual void apply(const HLAInt16DataType& dataType);
+    virtual void apply(const HLAUInt16DataType& dataType);
+    virtual void apply(const HLAInt32DataType& dataType);
+    virtual void apply(const HLAUInt32DataType& dataType);
+    virtual void apply(const HLAInt64DataType& dataType);
+    virtual void apply(const HLAUInt64DataType& dataType);
+    virtual void apply(const HLAFloat32DataType& dataType);
+    virtual void apply(const HLAFloat64DataType& dataType);
+
+    virtual void apply(const HLAFixedArrayDataType& dataType);
+    virtual void apply(const HLAVariableArrayDataType& dataType);
+
+    virtual void apply(const HLAEnumeratedDataType& dataType);
+
+    virtual void apply(const HLAFixedRecordDataType& dataType);
+
+    virtual void apply(const HLAVariantDataType& dataType);
+
+    HLADataElement* getDataElement()
+    { return _dataElement.release(); }
+
+protected:
+    class ArrayDataElementFactory;
+    class VariantDataElementFactory;
+
+    SGSharedPtr<HLADataElement> _dataElement;
+};
+
 } // namespace simgear
 
 #endif
diff --git a/simgear/hla/HLAObjectInstance.cxx b/simgear/hla/HLAObjectInstance.cxx
index 0324d328..ae726ee4 100644
--- a/simgear/hla/HLAObjectInstance.cxx
+++ b/simgear/hla/HLAObjectInstance.cxx
@@ -123,7 +123,7 @@ HLAObjectInstance::getAttributeDataElement(unsigned index) const
     return _rtiObjectInstance->getDataElement(index);
 }
 
-class HLAObjectInstance::DataElementFactoryVisitor : public HLADataTypeVisitor {
+class HLAObjectInstance::DataElementFactoryVisitor : public HLADataElementFactoryVisitor {
 public:
     DataElementFactoryVisitor(const HLAPathElementMap& pathElementMap) :
         _pathElementMap(pathElementMap)
@@ -150,7 +150,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLASCharDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAUInt8DataType& dataType)
     {
@@ -158,7 +158,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLAUCharDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAInt16DataType& dataType)
     {
@@ -166,7 +166,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLAShortDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAUInt16DataType& dataType)
     {
@@ -174,7 +174,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLAUShortDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAInt32DataType& dataType)
     {
@@ -182,7 +182,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLAIntDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAUInt32DataType& dataType)
     {
@@ -190,7 +190,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLAUIntDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAInt64DataType& dataType)
     {
@@ -198,7 +198,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLALongDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAUInt64DataType& dataType)
     {
@@ -206,7 +206,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLAULongDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAFloat32DataType& dataType)
     {
@@ -214,7 +214,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLAFloatDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
     virtual void apply(const HLAFloat64DataType& dataType)
     {
@@ -222,7 +222,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLADoubleDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
 
     class ArrayDataElementFactory : public HLAArrayDataElement::DataElementFactory {
@@ -287,7 +287,7 @@ public:
         if (_dataElement.valid())
             return;
 
-        _dataElement = new HLAEnumeratedDataElement(&dataType);
+        HLADataElementFactoryVisitor::apply(dataType);
     }
 
     virtual void apply(const HLAFixedRecordDataType& dataType)
@@ -357,9 +357,6 @@ public:
         _dataElement = variantDataElement;
     }
 
-    const SGSharedPtr<HLADataElement>& getDataElement() const
-    { return _dataElement; }
-
 private:
     SGSharedPtr<HLADataElement> createDataElement(const HLADataElement::Path& path, const HLADataType& dataType)
     {
@@ -381,7 +378,6 @@ private:
         return dataElement;
     }
 
-    SGSharedPtr<HLADataElement> _dataElement;
     const HLAPathElementMap& _pathElementMap;
     HLADataElement::Path _path;
 };
diff --git a/simgear/hla/Makefile.am b/simgear/hla/Makefile.am
index 67542ddb..e214e6a0 100644
--- a/simgear/hla/Makefile.am
+++ b/simgear/hla/Makefile.am
@@ -35,6 +35,7 @@ libsghla_a_SOURCES = \
 	HLABasicDataType.cxx \
 	HLADataElement.cxx \
 	HLADataType.cxx \
+	HLADataTypeVisitor.cxx \
 	HLAEnumeratedDataElement.cxx \
 	HLAEnumeratedDataType.cxx \
 	HLAFederate.cxx \