| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * Licensed 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 "FunctionEvaluate.hpp" |
| |
| |
| |
| #include <xalanc/PlatformSupport/PrefixResolver.hpp> |
| #include <xalanc/PlatformSupport/XalanMessageLoader.hpp> |
| |
| |
| |
| #include <xalanc/DOMSupport/DOMServices.hpp> |
| |
| |
| |
| #include <xalanc/XalanDOM/XalanElement.hpp> |
| |
| |
| |
| #include <xalanc/XPath/ElementPrefixResolverProxy.hpp> |
| #include <xalanc/XPath/XObjectFactory.hpp> |
| #include <xalanc/XPath/XPath.hpp> |
| #include <xalanc/XPath/XPathConstructionContextDefault.hpp> |
| #include <xalanc/XPath/XPathProcessorImpl.hpp> |
| |
| |
| |
| XALAN_CPP_NAMESPACE_BEGIN |
| |
| |
| |
| FunctionEvaluate::FunctionEvaluate() |
| { |
| } |
| |
| |
| |
| FunctionEvaluate::~FunctionEvaluate() |
| { |
| } |
| |
| |
| |
| inline XObjectPtr |
| doExecute( |
| XPathExecutionContext& executionContext, |
| XalanNode* context, |
| const XalanDOMString& expression, |
| const PrefixResolver& resolver, |
| const Function::LocatorType* locator) |
| { |
| // $$$ ToDo: Consider moving all of this into a member function of |
| // XPathExecutionContext. |
| XPathProcessorImpl theProcessor; |
| |
| XPathConstructionContextDefault theConstructionContext; |
| |
| XPath theXPath(locator); |
| |
| theProcessor.initXPath( |
| theXPath, |
| theConstructionContext, |
| expression, |
| resolver, |
| locator); |
| |
| return theXPath.execute(context, resolver, executionContext); |
| } |
| |
| |
| |
| inline XObjectPtr |
| doExecute( |
| XPathExecutionContext& executionContext, |
| XalanNode* context, |
| const XalanDOMString& expression, |
| const XalanNode* resolver, |
| const Function::LocatorType* locator) |
| { |
| assert(resolver == 0 || resolver->getNodeType() == XalanNode::ELEMENT_NODE); |
| |
| #if defined(XALAN_OLD_STYLE_CASTS) |
| ElementPrefixResolverProxy theProxy((const XalanElement*)resolver); |
| #else |
| ElementPrefixResolverProxy theProxy(static_cast<const XalanElement*>(resolver)); |
| #endif |
| |
| return doExecute(executionContext, context, expression, theProxy, locator); |
| } |
| |
| |
| |
| XObjectPtr |
| FunctionEvaluate::execute( |
| XPathExecutionContext& executionContext, |
| XalanNode* context, |
| const XObjectArgVectorType& args, |
| const LocatorType* locator) const |
| { |
| if (args.size() != 1) |
| { |
| executionContext.error(getError(), context, locator); |
| } |
| |
| assert(args[0].null() == false); |
| |
| const XalanDOMString& theExpression = args[0]->str(); |
| |
| const PrefixResolver* const theResolver = |
| executionContext.getPrefixResolver(); |
| |
| if (theResolver != 0) |
| { |
| return doExecute(executionContext, context, theExpression, *theResolver, locator); |
| } |
| else |
| { |
| const XalanNode* resolverNode = context; |
| |
| if (resolverNode->getNodeType() != XalanNode::ELEMENT_NODE) |
| { |
| resolverNode = DOMServices::getParentOfNode(*resolverNode); |
| |
| if (context->getNodeType() != XalanNode::ELEMENT_NODE) |
| { |
| executionContext.warn( |
| XalanMessageLoader::getMessage(XalanMessages::NoPrefixResolverAvailable), |
| context, |
| locator); |
| |
| resolverNode = 0; |
| } |
| } |
| |
| return doExecute(executionContext, context, theExpression, resolverNode, locator); |
| } |
| } |
| |
| |
| |
| #if defined(XALAN_NO_COVARIANT_RETURN_TYPE) |
| Function* |
| #else |
| FunctionEvaluate* |
| #endif |
| FunctionEvaluate::clone() const |
| { |
| return new FunctionEvaluate(*this); |
| } |
| |
| |
| |
| const XalanDOMString |
| FunctionEvaluate::getError() const |
| { |
| return XalanMessageLoader::getMessage(XalanMessages::FunctionAcceptsOneArgument_1Param,"evaluate()"); |
| } |
| |
| |
| |
| XALAN_CPP_NAMESPACE_END |