ENH: Add ability to set Light Data Limit for Visitor, which controls how many...

ENH: Add ability to set Light Data Limit for Visitor, which controls how many values there need to be in a DataItem before it writes those values to a heavy data format.  Set the default value to 100.

XdmfVisitor.cpp

@@ -14,7 +14,7 @@
 XdmfVisitor::XdmfVisitor() :
 	mTabIndex(0),
 	xmlData(),
-	mLightDataLimit(0),
+	mLightDataLimit(100),
 	mHeavyFileName("output.h5"),
 	hdf5Handle(H5Fcreate("output.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT))
 {
@@ -157,6 +157,16 @@ std::string XdmfVisitor::printSelf() const
 	return "XdmfVisitor:\n" + xmlData.str();
 }
 
+int XdmfVisitor::getLightDataLimit() const
+{
+	return mLightDataLimit;
+}
+
+void XdmfVisitor::setLightDataLimit(int numValues)
+{
+	mLightDataLimit = numValues;
+}
+
 std::string XdmfVisitor::getHDF5GroupName()
 {
 	std::stringstream datasetName;

XdmfVisitor.hpp

@@ -38,6 +38,20 @@ public:
 
 	virtual std::string printSelf() const;
 
+	/**
+	 * Get the number of values that this visitor writes to light data (XML) before switching to a heavy data format.
+	 *
+	 * @return an int containing the number of values.
+	 */
+	int getLightDataLimit() const;
+
+	/**
+	 * Set the number of values that this visitor writes to light data (XML) before switching to a heavy data format.
+	 *
+	 * @param an int containing the number of values
+	 */
+	void setLightDataLimit(int numValues);
+
 protected:
 
 	XdmfVisitor();
@@ -54,8 +68,8 @@ private:
 	std::stringstream xmlData;
 	hid_t hdf5Handle;
 	std::vector<std::string> dataHierarchy;
-	int mLightDataLimit;
 	std::string mHeavyFileName;
+	int mLightDataLimit;
 
 };
 

tests/TestXdmfVisitor.cpp

@@ -8,7 +8,8 @@
 
 int main(int argc, char* argv[])
 {
-	boost::shared_ptr<XdmfVisitor> visitor3 = XdmfVisitor::New();
+	boost::shared_ptr<XdmfVisitor> visitor = XdmfVisitor::New();
+	visitor->setLightDataLimit(10);
 	boost::shared_ptr<XdmfGrid> grid = XdmfGrid::New();
 
 	grid->setName("test");
@@ -49,9 +50,9 @@ int main(int argc, char* argv[])
 
 	boost::shared_ptr<XdmfDomain> domain = XdmfDomain::New();
 	domain->insert(grid);
-	domain->write(visitor3);
+	domain->write(visitor);
 
-	std::cout << visitor3->printSelf() << std::endl;
+	std::cout << visitor->printSelf() << std::endl;
 
 	return 0;
 }