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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <xalanc/Include/PlatformDefinitions.hpp>
#include <cassert>
#include <iostream>
#include <xercesc/util/PlatformUtils.hpp>
#include <xercesc/framework/LocalFileInputSource.hpp>
#include <xalanc/PlatformSupport/XSLException.hpp>
#include <xalanc/DOMSupport/XalanDocumentPrefixResolver.hpp>
#include <xalanc/XPath/XObject.hpp>
#include <xalanc/XPath/XPathEvaluator.hpp>
#include <xalanc/XalanSourceTree/XalanSourceTreeDOMSupport.hpp>
#include <xalanc/XalanSourceTree/XalanSourceTreeInit.hpp>
#include <xalanc/XalanSourceTree/XalanSourceTreeParserLiaison.hpp>
int
main(
int argc,
char* argv[])
{
using std::cerr;
using std::cout;
using std::endl;
int theResult = 0;
if (argc != 4)
{
cerr << "Usage: SimpleXPathAPI XMLFilePath Context XPathExpression" << endl;
theResult = -1;
}
else
{
using xalanc::XSLException;
try
{
using xercesc::XMLPlatformUtils;
using xalanc::XPathEvaluator;
XMLPlatformUtils::Initialize();
XPathEvaluator::initialize();
{
using xercesc::LocalFileInputSource;
using xalanc::XalanDocument;
using xalanc::XalanDocumentPrefixResolver;
using xalanc::XalanDOMString;
using xalanc::XalanNode;
using xalanc::XalanSourceTreeInit;
using xalanc::XalanSourceTreeDOMSupport;
using xalanc::XalanSourceTreeParserLiaison;
using xalanc::XObjectPtr;
// Initialize the XalanSourceTree subsystem...
XalanSourceTreeInit theSourceTreeInit;
// We'll use these to parse the XML file.
XalanSourceTreeDOMSupport theDOMSupport;
XalanSourceTreeParserLiaison theLiaison(theDOMSupport);
// Hook the two together...
theDOMSupport.setParserLiaison(&theLiaison);
const XalanDOMString theFileName(argv[1]);
// Create an input source that represents a local file...
const LocalFileInputSource theInputSource(theFileName.c_str());
// Parse the document...
XalanDocument* const theDocument =
theLiaison.parseXMLStream(theInputSource);
assert(theDocument != 0);
XalanDocumentPrefixResolver thePrefixResolver(theDocument);
XPathEvaluator theEvaluator;
// OK, let's find the context node...
XalanNode* const theContextNode =
theEvaluator.selectSingleNode(
theDOMSupport,
theDocument,
XalanDOMString(argv[2]).c_str(),
thePrefixResolver);
if (theContextNode == 0)
{
cerr << "Warning -- No nodes matched the location path \""
<< argv[2]
<< "\"."
<< endl
<< "Execution cannot continue..."
<< endl
<< endl;
}
else
{
// OK, let's evaluate the expression...
const XObjectPtr theResult(
theEvaluator.evaluate(
theDOMSupport,
theContextNode,
XalanDOMString(argv[3]).c_str(),
thePrefixResolver));
assert(theResult.null() == false);
cout << "The string value of the result is:"
<< endl
<< theResult->str(theEvaluator.getExecutionContext())
<< endl
<< endl;
}
}
XPathEvaluator::terminate();
XMLPlatformUtils::Terminate();
}
catch(const XSLException& theException)
{
using xalanc::XalanDOMString;
XalanDOMString theError;
cerr << "XSL exception: "
<< theException.defaultFormat(theError)
<< endl;
theResult = -1;
}
catch(...)
{
cerr << "Generic exception caught!" << endl;
theResult = -1;
}
}
return theResult;
}
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