| /* |
| * 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. |
| */ |
| // Class header file. |
| #include "XResultTreeFrag.hpp" |
| |
| |
| |
| #include <xalanc/XalanDOM/XalanDocumentFragment.hpp> |
| #include <xalanc/XalanDOM/XalanNodeList.hpp> |
| #include <xalanc/XalanDOM/XalanText.hpp> |
| |
| |
| |
| #include <xalanc/PlatformSupport/DOMStringHelper.hpp> |
| #include <xalanc/PlatformSupport/DoubleSupport.hpp> |
| |
| |
| |
| #include <xalanc/DOMSupport/DOMServices.hpp> |
| |
| |
| |
| #include <xalanc/XPath/FormatterStringLengthCounter.hpp> |
| #include <xalanc/XPath/NodeRefListBase.hpp> |
| #include <xalanc/XPath/XObjectTypeCallback.hpp> |
| |
| |
| |
| #include <xalanc/XSLT/StylesheetExecutionContext.hpp> |
| |
| |
| |
| namespace XALAN_CPP_NAMESPACE { |
| |
| |
| |
| inline const XalanDOMString* |
| getSingleTextChildValue(const XalanDocumentFragment& theRTreeFrag) |
| { |
| const XalanNode* const theFirstChild = theRTreeFrag.getFirstChild(); |
| |
| if (theFirstChild != 0 && |
| theFirstChild->getNodeType() == XalanNode::TEXT_NODE && |
| theFirstChild->getNextSibling() == 0) |
| { |
| return &theFirstChild->getNodeValue(); |
| } |
| else |
| { |
| return 0; |
| } |
| } |
| |
| |
| |
| const double theBogusNumberValue = 123456789; |
| |
| |
| |
| XResultTreeFrag::XResultTreeFrag( |
| XalanDocumentFragment& value, |
| MemoryManager& theManager) : |
| XObject(eTypeResultTreeFrag, theManager), |
| m_value(&value), |
| m_singleTextChildValue(getSingleTextChildValue(value)), |
| m_executionContext(0), |
| m_cachedStringValue(theManager), |
| m_cachedNumberValue(theBogusNumberValue) |
| |
| { |
| } |
| |
| |
| |
| XResultTreeFrag::XResultTreeFrag( |
| const XResultTreeFrag& source, |
| MemoryManager& theManager) : |
| XObject(source, theManager), |
| m_value(source.m_value), |
| m_singleTextChildValue(source.m_singleTextChildValue), |
| m_executionContext(0), |
| m_cachedStringValue(source.m_cachedStringValue, theManager), |
| m_cachedNumberValue(source.m_cachedNumberValue) |
| { |
| assert(m_value != 0); |
| } |
| |
| |
| |
| XResultTreeFrag::~XResultTreeFrag() |
| { |
| } |
| |
| |
| |
| const XalanDOMString& |
| XResultTreeFrag::getTypeString() const |
| { |
| return s_resultTreeFragmentString; |
| } |
| |
| |
| |
| double |
| XResultTreeFrag::num(XPathExecutionContext& executionContext) const |
| { |
| if (m_cachedNumberValue == theBogusNumberValue) |
| { |
| m_cachedNumberValue = |
| DoubleSupport::toDouble( |
| str(executionContext), |
| getMemoryManager()); |
| } |
| |
| return m_cachedNumberValue; |
| } |
| |
| |
| |
| double |
| XResultTreeFrag::num() const |
| { |
| if (m_cachedNumberValue == theBogusNumberValue) |
| { |
| m_cachedNumberValue = |
| DoubleSupport::toDouble( |
| str(), |
| getMemoryManager()); |
| } |
| |
| return m_cachedNumberValue; |
| } |
| |
| |
| |
| bool |
| XResultTreeFrag::boolean(XPathExecutionContext& /* executionContext */) const |
| { |
| // Result tree fragments always evaluate to true. |
| return true; |
| } |
| |
| |
| |
| const XalanDOMString& |
| XResultTreeFrag::str(XPathExecutionContext& /* executionContext */) const |
| { |
| return XResultTreeFrag::str(); |
| } |
| |
| |
| |
| const XalanDOMString& |
| XResultTreeFrag::str() const |
| { |
| if (m_singleTextChildValue != 0) |
| { |
| assert(m_value->getFirstChild() != 0 && |
| m_value->getFirstChild()->getNodeType() == XalanNode::TEXT_NODE); |
| |
| return *m_singleTextChildValue; |
| } |
| else if (m_cachedStringValue.empty() == true) |
| { |
| DOMServices::getNodeData( |
| *m_value, |
| m_cachedStringValue); |
| } |
| |
| return m_cachedStringValue; |
| } |
| |
| |
| |
| void |
| XResultTreeFrag::str( |
| XPathExecutionContext& /* executionContext */, |
| FormatterListener& formatterListener, |
| MemberFunctionPtr function) const |
| { |
| XResultTreeFrag::str(formatterListener, function); |
| } |
| |
| |
| |
| void |
| XResultTreeFrag::str( |
| FormatterListener& formatterListener, |
| MemberFunctionPtr function) const |
| { |
| if (m_singleTextChildValue != 0) |
| { |
| assert(m_value->getFirstChild() != 0 && |
| m_value->getFirstChild()->getNodeType() == XalanNode::TEXT_NODE); |
| |
| XObject::string(*m_singleTextChildValue, formatterListener, function); |
| } |
| else if (m_cachedStringValue.empty() == false) |
| { |
| XObject::string(m_cachedStringValue, formatterListener, function); |
| } |
| else |
| { |
| DOMServices::getNodeData( |
| *m_value, |
| formatterListener, |
| function); |
| } |
| } |
| |
| |
| |
| void |
| XResultTreeFrag::str( |
| XPathExecutionContext& /* executionContext */, |
| XalanDOMString& theBuffer) const |
| { |
| XResultTreeFrag::str(theBuffer); |
| } |
| |
| |
| |
| void |
| XResultTreeFrag::str(XalanDOMString& theBuffer) const |
| { |
| if (m_singleTextChildValue != 0) |
| { |
| theBuffer.append(*m_singleTextChildValue); |
| } |
| else if (m_cachedStringValue.empty() == false) |
| { |
| theBuffer.append(m_cachedStringValue); |
| } |
| else |
| { |
| DOMServices::getNodeData( |
| *m_value, |
| theBuffer); |
| } |
| } |
| |
| |
| |
| double |
| XResultTreeFrag::stringLength(XPathExecutionContext& executionContext) const |
| { |
| if (m_singleTextChildValue != 0) |
| { |
| return static_cast<double>(m_singleTextChildValue->length()); |
| } |
| else if (m_cachedStringValue.empty() == false) |
| { |
| return static_cast<double>(m_cachedStringValue.length()); |
| } |
| else |
| { |
| FormatterStringLengthCounter theCounter; |
| |
| DOMServices::getNodeData( |
| *m_value, |
| executionContext, |
| theCounter, |
| &FormatterListener::characters); |
| |
| return static_cast<double>(theCounter.getCount()); |
| } |
| } |
| |
| |
| |
| const XalanDocumentFragment& |
| XResultTreeFrag::rtree() const |
| { |
| assert(m_value != 0); |
| |
| return *m_value; |
| } |
| |
| |
| |
| void |
| XResultTreeFrag::ProcessXObjectTypeCallback(XObjectTypeCallback& theCallbackObject) |
| { |
| theCallbackObject.ResultTreeFragment( |
| *this, |
| rtree()); |
| } |
| |
| |
| |
| void |
| XResultTreeFrag::ProcessXObjectTypeCallback(XObjectTypeCallback& theCallbackObject) const |
| { |
| theCallbackObject.ResultTreeFragment( |
| *this, |
| rtree()); |
| } |
| |
| |
| |
| XalanDocumentFragment* |
| XResultTreeFrag::release() |
| { |
| m_singleTextChildValue = 0; |
| |
| m_cachedStringValue.clear(); |
| |
| m_cachedNumberValue = theBogusNumberValue; |
| |
| XalanDocumentFragment* const temp = m_value; |
| |
| m_value = 0; |
| |
| return temp; |
| } |
| |
| |
| |
| void |
| XResultTreeFrag::set(XalanDocumentFragment& theValue) |
| { |
| release(); |
| |
| m_value = &theValue; |
| |
| m_singleTextChildValue = getSingleTextChildValue(*m_value); |
| } |
| |
| |
| |
| void |
| XResultTreeFrag::dereferenced() |
| { |
| if (m_executionContext == 0 || |
| // We're dead after we call this, if it returns true; |
| m_executionContext->returnXResultTreeFrag(this) == false) |
| { |
| delete m_value; |
| |
| delete this; |
| } |
| } |
| |
| |
| |
| } |