Prepared TransformationFacade and FunctionTransform for parameter change

* FunctionTransform was adapted to support passing the transformation as either a string path or directly as a node-set / result-tree
** this in turn required changes to the TransformationFacade
** the implementation of a xalan::XSLTInputSource specialization for the XObjectValue::get template method was also required
* changed ixslt executable to match TransformationFacade constructor changes
* these changes were implemented in preparation for a restructuring of how the separate external functions provided by InputXSLT operate and work together
** the approach up until now was to provide non-combinable external functions for distinct task such as "read a file" and "transform that transformation using these parameters into that file"
** if you think about the areas of operations of these functions are overlapping quite a bit
*** e.g. FunctionTransform reads files, transforms DOM structures and writes files instead of only transforming things
** the new approach will be to limit the feature set of each function in the attempt of making the clearer and increasing their combinability
*** e.g. FunctionTransform won't read or write files but expect both the input-DOM and the transformation-DOM as node-sets or result trees and return the transformed document as a node-set to be written using FunctionWriteFile (to be implemented)

1 files changed, 19 insertions, 0 deletions

diff --git a/src/support/type/xobject_value.cc b/src/support/type/xobject_value.cc
index cdeb9c6..812be52 100644
--- a/src/support/type/xobject_value.cc
+++ b/src/support/type/xobject_value.cc
@@ -1,5 +1,8 @@
 #include "xobject_value.h"
 
+#include <xalanc/XSLT/XSLTInputSource.hpp>
+#include <xalanc/XalanDOM/XalanDocumentFragment.hpp>
+
 #include <boost/algorithm/string.hpp>
 
 #include <string>
@@ -20,6 +23,22 @@ xalan::XObjectPtr get<xalan::XObjectPtr>(const xalan::XObjectPtr& ptr) {
 	return ptr;
 }
 
+template <>
+xalan::XSLTInputSource get<xalan::XSLTInputSource>(
+	const xalan::XObjectPtr& ptr) {
+	switch ( ptr->getType() ) {
+		case xalan::XObject::eObjectType::eTypeNodeSet: {
+			return xalan::XSLTInputSource(ptr->nodeset().item(0));
+		}
+		case xalan::XObject::eObjectType::eTypeResultTreeFrag: {
+			return xalan::XSLTInputSource(ptr->rtree().getFirstChild());
+		}
+		default: {
+			return xalan::XSLTInputSource(ptr->str());
+		}
+	}
+}
+
 }
 
 }