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path: root/src/transformation_facade.h
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2014-05-28Implemented basic ErrorHandlerAdrian Kummerländer
* InputXSLT::ErrorHandler is derived from xercesc::ErrorHandler and enables contextual printing of transformation errors ** currently this means that the error messages passed to std::cerr contain the full path of the offending transformation * added input trimming to the external transform function ** calls to this function from inside a transformation may contain unnecessary whitespace characters which disrupt further processing
2014-05-20Replaced FunctionResolveInclude with IncludeEntityResolverAdrian Kummerländer
* xalan / xerces offers the possibility of implementing custom entity resolvers which are called upon by "<xsl:include..." ** such a custom resolver was implemented to resolve include path entities * this is a much better way to support include paths than offering a custom external "resolve-include" function * as entity paths are expanded before they are passed to the entity resolver, a special "[path]" syntax simmilar to "#include <path>" had to be implemented
2014-05-18Added possibility for streaming TransformationFacade outputAdrian Kummerländer
* added "std::basic_ostream<char>" taking "generate" member method overloads * marked cli parameter "target" as optional ** output is streamed to std::cout if target file is not provided
2014-05-16Added XObjectPtr parameter to FunctionTransformAdrian Kummerländer
* the given XObject is passed to the called transformation ** this was done to enable templates to pass information to each other ** this should support any type usable in a XPath context to be passed as an argument * expanded FunctionTransform test case accordingly
2014-05-10Implemented StylesheetParameterGuard classAdrian Kummerländer
* removes responsibility for clearing parameters from the generate member methods * abstracts parameter escaping and setting and handles map conversion * marked actual generate member method as private and added StylesheetParameterGuard reference argument ** "frontend" generate member methods instantiate a StylesheetParameterGuard instance and pass it to the actual generate method ** this enables central default parameter definition while offering the possibility for custom parameters
2014-05-09Added default target file and path parametersAdrian Kummerländer
* the transformation is now provided with default parameters such as the target file and its parent directory * added appropriate test case ** default_params * test frontend now doesn't provide a "test" parameter anymore * extracted parameter setter into separate member method "setParameters" of TransformationFacade
2014-05-02Changed external functions to enable global installationAdrian Kummerländer
* up until now all external functions were locally installed to a specific XalanTransformer instance contained within a TransformationGuard instance ** this had to change as I planned to add a "execute-transformation" function based on TransformationGuard which would have led to recursive self-instantiation ** global external functions have to be thread-safe * as global external function can not be provided with a reference to a transformation-specific FilesystemFacade instance, the working path is now determined using xalan::Locator ** currently using pointer arithmetics on XMLCh* to remove the "file://" prefix of the URI returned by locator->getSystemId(), may be unsafe * added compilation unit for PlattformGuard as it now contains function installation in addition to plattform lifetime management
2014-05-01Added basic parameter taking overload of TransformationFacade::generateAdrian Kummerländer
* XSLT stylesheets may be provided with a set of initial parameters ** these parameters can be provided as the second argument to the generate member method in the form of a string to string mapping ** the XSLT standard also permitts number and node set types as value arguments of such input parameters but this is not supported by this change * expanded test transformation to demonstrate this feature
2014-04-26Moved DomDocumentCache instances back into external function classAdrian Kummerländer
* A global DomDocumentCache instance would require key prefixing * switched internal data structure to std::unordered_map for average constant time access
2014-04-26Implemented global DOM document cacheAdrian Kummerländer
* the plan to return XML-nodes from each external function requires a better way to manage the lifetime of many xerces DOM document instances and their support class instances ** this is why DomDocumentCache and DomDocumentCache::item were implemented ** based on std::map so we can easily access the result of old function calls * changed external read-directory function to return the children of the document node instead of the document node itself ** removes unnecessary cruft in function calls ** will make returning status codes alongside the function result more pleasing to the eye * updated test transformation to reflect new features
2014-04-24Expanded FunctionReadDirectory class to return files and directoriesAdrian Kummerländer
* they are marked appropriately by a _type_ attribute
2014-04-24Changed TransformerFacade into TransformationFacade for single XSLTsAdrian Kummerländer
* contains a single, compiled transformation as specified by its construction argument * uses the transformation's location as the FilesystemContext * allows generation of output documents using _generate_ member method