diff options
| -rw-r--r-- | dummy/in.xml | 7 | ||||
| -rw-r--r-- | dummy/test.txt | 1 | ||||
| -rw-r--r-- | dummy/transform.xsl | 31 | ||||
| -rw-r--r-- | src/read_file_command.h | 60 | ||||
| -rw-r--r-- | src/utility.h | 48 | ||||
| -rw-r--r-- | test.cc | 37 |
6 files changed, 184 insertions, 0 deletions
diff --git a/dummy/in.xml b/dummy/in.xml new file mode 100644 index 0000000..7b512bc --- /dev/null +++ b/dummy/in.xml @@ -0,0 +1,7 @@ +<?xml version="1.0"?> +<items> + <item>Test1</item> + <item>Test2</item> + <item>Test3</item> + <item>Test4</item> +</items> diff --git a/dummy/test.txt b/dummy/test.txt new file mode 100644 index 0000000..cd08755 --- /dev/null +++ b/dummy/test.txt @@ -0,0 +1 @@ +Hello world! diff --git a/dummy/transform.xsl b/dummy/transform.xsl new file mode 100644 index 0000000..dca15a1 --- /dev/null +++ b/dummy/transform.xsl @@ -0,0 +1,31 @@ +<?xml version="1.0" encoding="UTF-8"?> +<xsl:stylesheet version="1.0" + xmlns:xsl="http://www.w3.org/1999/XSL/Transform" + xmlns:external="http://ExternalFunction.xalan-c++.xml.apache.org"> + +<xsl:output method="xml" + doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN" + doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd" + omit-xml-declaration="yes" + encoding="UTF-8" + indent="yes" /> + +<xsl:template match="/"> +<html> + <head> + </head> + <body> + <xsl:apply-templates select="items/item" /> + </body> +</html> +</xsl:template> + +<xsl:template match="items/item"> + <div id="{.}"> + <xsl:value-of select="external:read-file('dummy/test.txt')" /> + </div> +</xsl:template> + +</xsl:stylesheet> + + diff --git a/src/read_file_command.h b/src/read_file_command.h new file mode 100644 index 0000000..88c20bf --- /dev/null +++ b/src/read_file_command.h @@ -0,0 +1,60 @@ +#include <xalanc/Include/PlatformDefinitions.hpp> +#include <xercesc/util/PlatformUtils.hpp> +#include <xalanc/XalanTransformer/XalanTransformer.hpp> +#include <xalanc/XPath/XObjectFactory.hpp> +#include <xalanc/XPath/Function.hpp> + +#include "utility.h" + +XALAN_USING_XALAN(Function) +XALAN_USING_XALAN(Locator) +XALAN_USING_XALAN(XPathExecutionContext) +XALAN_USING_XALAN(XalanDOMString) +XALAN_USING_XALAN(XalanNode) +XALAN_USING_XALAN(XObjectPtr) +XALAN_USING_XALAN(MemoryManager) +XALAN_USING_XALAN(XalanCopyConstruct) + +class FunctionFileRead : public Function { + public: + virtual XObjectPtr execute( + XPathExecutionContext& executionContext, + XalanNode* context, + const XObjectArgVectorType& args, + const Locator* locator + ) const { + if ( args.size() != 1 ) { + XPathExecutionContext::GetAndReleaseCachedString guard(executionContext); + + generalError(executionContext, context, locator); + } + + xalanc_1_11::CharVectorType tmpFileName; + std::string fileName; + + args[0]->str().transcode(tmpFileName); + std::move(tmpFileName.begin(), tmpFileName.end(), fileName.begin()); + + std::string content(readFile(fileName)); + + return executionContext.getXObjectFactory().createString( + XalanDOMString(content.data()) + ); + } + + virtual FunctionFileRead* clone(MemoryManager& manager) const { + return XalanCopyConstruct(manager, *this); + } + + protected: + const XalanDOMString& getError(XalanDOMString& result) const { + result.assign("The read-file() function expects one argument."); + + return result; + } + + private: + FunctionFileRead& operator=(const FunctionFileRead&); + bool operator==(const FunctionFileRead&) const; + +}; diff --git a/src/utility.h b/src/utility.h new file mode 100644 index 0000000..7050cee --- /dev/null +++ b/src/utility.h @@ -0,0 +1,48 @@ +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> + +#include <cstddef> +#include <cstdio> + +namespace { + +const int OpenFlags = O_RDONLY; +const mode_t OpenMode = S_IRUSR | S_IWUSR; + +} + +std::string readFile(const std::string& path) { + int descriptor( + open(path.data(), OpenFlags, OpenMode) + ); + + if ( descriptor == -1 ) { + close(descriptor); + + return "io error"; + } else { + struct stat info; + fstat(descriptor, &info); + const std::size_t size(info.st_size); + + char* buffer(new char[size]); + + ssize_t readSize(read( + descriptor, + reinterpret_cast<void*>(buffer), + size + )); + + close(descriptor); + + std::string content( + buffer, + readSize + ); + + delete[] buffer; + + return content; + } +} @@ -0,0 +1,37 @@ +#include <xalanc/Include/PlatformDefinitions.hpp> +#include <xercesc/util/PlatformUtils.hpp> +#include <xalanc/XalanTransformer/XalanTransformer.hpp> +#include <xalanc/XSLT/XSLTInputSource.hpp> + +#include "src/read_file_command.h" + +int main() { + xercesc::XMLPlatformUtils::Initialize(); + xalanc_1_11::XalanTransformer::initialize(); + + const xalanc_1_11::XalanDOMString customNamespace( + "http://ExternalFunction.xalan-c++.xml.apache.org" + ); + + xalanc_1_11::XalanTransformer transformer; + + transformer.installExternalFunction( + customNamespace, + xalanc_1_11::XalanDOMString("read-file"), + FunctionFileRead() + ); + + xalanc_1_11::XSLTInputSource input("dummy/in.xml"); + xalanc_1_11::XSLTInputSource tranformation("dummy/transform.xsl"); + xalanc_1_11::XSLTResultTarget output("dummy/out.xml"); + + int result(transformer.transform( + input, + tranformation, + output + )); + + xalanc_1_11::XalanTransformer::terminate(); + + return result; +} |