sippeangelo
430 lines
16 KiB
C++
430 lines
16 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: MixedContentModel.cpp 676911 2008-07-15 13:27:32Z amassari $
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*/
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// ---------------------------------------------------------------------------
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// Includes
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// ---------------------------------------------------------------------------
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#include <string.h>
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#include <xercesc/util/RuntimeException.hpp>
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#include <xercesc/framework/XMLElementDecl.hpp>
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#include <xercesc/validators/common/ContentSpecNode.hpp>
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#include <xercesc/validators/common/MixedContentModel.hpp>
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#include <xercesc/validators/common/CMStateSet.hpp>
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#include <xercesc/validators/common/Grammar.hpp>
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#include <xercesc/validators/schema/SubstitutionGroupComparator.hpp>
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XERCES_CPP_NAMESPACE_BEGIN
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// ---------------------------------------------------------------------------
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// MixedContentModel: Constructors and Destructor
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// ---------------------------------------------------------------------------
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MixedContentModel::MixedContentModel(const bool dtd
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, ContentSpecNode* const parentContentSpec
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, const bool ordered
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, MemoryManager* const manager) :
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fCount(0)
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, fChildren(0)
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, fChildTypes(0)
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, fOrdered(ordered)
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, fDTD(dtd)
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, fMemoryManager(manager)
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{
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//
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// Create a vector of unsigned ints that will be filled in with the
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// ids of the child nodes. It will be expanded as needed but we give
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// it an initial capacity of 64 which should be more than enough for
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// 99% of the scenarios.
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//
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ValueVectorOf<QName*> children(64, fMemoryManager);
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ValueVectorOf<ContentSpecNode::NodeTypes> childTypes(64, fMemoryManager);
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//
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// Get the parent element's content spec. This is the head of the tree
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// of nodes that describes the content model. We will iterate this
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// tree.
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//
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ContentSpecNode* curNode = parentContentSpec;
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if (!curNode)
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ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::CM_NoParentCSN, fMemoryManager);
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// And now call the private recursive method that iterates the tree
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buildChildList(curNode, children, childTypes);
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//
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// And now we know how many elements we need in our member list. So
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// fill them in.
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//
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fCount = children.size();
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fChildren = (QName**) fMemoryManager->allocate(fCount * sizeof(QName*)); //new QName*[fCount];
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fChildTypes = (ContentSpecNode::NodeTypes*) fMemoryManager->allocate
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(
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fCount * sizeof(ContentSpecNode::NodeTypes)
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); //new ContentSpecNode::NodeTypes[fCount];
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for (XMLSize_t index = 0; index < fCount; index++) {
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fChildren[index] = new (fMemoryManager) QName(*children.elementAt(index));
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fChildTypes[index] = childTypes.elementAt(index);
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}
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}
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MixedContentModel::~MixedContentModel()
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{
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for (XMLSize_t index = 0; index < fCount; index++) {
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delete fChildren[index];
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}
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fMemoryManager->deallocate(fChildren); //delete [] fChildren;
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fMemoryManager->deallocate(fChildTypes); //delete [] fChildTypes;
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}
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// ---------------------------------------------------------------------------
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// MixedContentModel: Getter methods
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// ---------------------------------------------------------------------------
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bool MixedContentModel::hasDups() const
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{
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// Can't have dups if only one child
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if (fCount == 1)
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return false;
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for (XMLSize_t index = 0; index < fCount; index++)
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{
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const QName* curVal = fChildren[index];
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for (XMLSize_t iIndex = 0; iIndex < fCount; iIndex++)
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{
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if (iIndex == index)
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continue;
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if (fDTD) {
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if (XMLString::equals(curVal->getRawName(), fChildren[iIndex]->getRawName())) {
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return true;
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}
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}
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else {
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if ((curVal->getURI() == fChildren[iIndex]->getURI()) &&
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(XMLString::equals(curVal->getLocalPart(), fChildren[iIndex]->getLocalPart()))) {
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return true;
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}
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}
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}
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}
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return false;
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}
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// ---------------------------------------------------------------------------
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// MixedContentModel: Implementation of the ContentModel virtual interface
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// ---------------------------------------------------------------------------
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//
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//Under the XML Schema mixed model,
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//the order and number of child elements appearing in an instance
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//must agree with
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//the order and number of child elements specified in the model.
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//
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bool
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MixedContentModel::validateContent( QName** const children
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, XMLSize_t childCount
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, unsigned int
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, XMLSize_t* indexFailingChild
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, MemoryManager* const) const
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{
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// must match order
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if (fOrdered) {
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unsigned int inIndex = 0;
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for (unsigned int outIndex = 0; outIndex < childCount; outIndex++) {
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// Get the current child out of the source index
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const QName* curChild = children[outIndex];
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// If its PCDATA, then we just accept that
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if (curChild->getURI() == XMLElementDecl::fgPCDataElemId)
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continue;
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ContentSpecNode::NodeTypes type = fChildTypes[inIndex];
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const QName* inChild = fChildren[inIndex];
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if (type == ContentSpecNode::Leaf) {
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if (fDTD) {
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if (!XMLString::equals(inChild->getRawName(), curChild->getRawName())) {
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*indexFailingChild=outIndex;
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return false;
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}
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}
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else {
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if ((inChild->getURI() != curChild->getURI()) ||
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(!XMLString::equals(inChild->getLocalPart(), curChild->getLocalPart()))) {
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*indexFailingChild=outIndex;
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return false;
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}
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}
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}
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else if (type == ContentSpecNode::Any) {
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}
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else if (type == ContentSpecNode::Any_NS) {
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if (inChild->getURI() != curChild->getURI())
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{
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*indexFailingChild=outIndex;
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return false;
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}
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}
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else if (type == ContentSpecNode::Any_Other)
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{
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// Here we assume that empty string has id 1.
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//
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unsigned int uriId = curChild->getURI();
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if (uriId == 1 || uriId == inChild->getURI())
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{
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*indexFailingChild=outIndex;
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return false;
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}
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}
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// advance index
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inIndex++;
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}
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}
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// can appear in any order
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else {
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for (unsigned int outIndex = 0; outIndex < childCount; outIndex++) {
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// Get the current child out of the source index
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const QName* curChild = children[outIndex];
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// If its PCDATA, then we just accept that
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if (curChild->getURI() == XMLElementDecl::fgPCDataElemId)
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continue;
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// And try to find it in our list
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unsigned int inIndex = 0;
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for (; inIndex < fCount; inIndex++)
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{
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ContentSpecNode::NodeTypes type = fChildTypes[inIndex];
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const QName* inChild = fChildren[inIndex];
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if (type == ContentSpecNode::Leaf) {
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if (fDTD) {
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if (XMLString::equals(inChild->getRawName(), curChild->getRawName())) {
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break;
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}
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}
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else {
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if ((inChild->getURI() == curChild->getURI()) &&
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(XMLString::equals(inChild->getLocalPart(), curChild->getLocalPart()))) {
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break;
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}
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}
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}
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else if (type == ContentSpecNode::Any) {
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break;
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}
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else if (type == ContentSpecNode::Any_NS) {
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if (inChild->getURI() == curChild->getURI())
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break;
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}
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else if (type == ContentSpecNode::Any_Other)
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{
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// Here we assume that empty string has id 1.
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//
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unsigned int uriId = curChild->getURI();
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if (uriId != 1 && uriId != inChild->getURI())
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break;
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}
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// REVISIT: What about checking for multiple ANY matches?
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// The content model ambiguity *could* be checked
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// by the caller before constructing the mixed
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// content model.
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}
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// We did not find this one, so the validation failed
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if (inIndex == fCount)
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{
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*indexFailingChild=outIndex;
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return false;
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}
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}
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}
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// Everything seems to be in order, so return success
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return true;
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}
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bool MixedContentModel::validateContentSpecial(QName** const children
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, XMLSize_t childCount
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, unsigned int
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, GrammarResolver* const pGrammarResolver
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, XMLStringPool* const pStringPool
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, XMLSize_t* indexFailingChild
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, MemoryManager* const) const
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{
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SubstitutionGroupComparator comparator(pGrammarResolver, pStringPool);
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// must match order
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if (fOrdered) {
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unsigned int inIndex = 0;
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for (unsigned int outIndex = 0; outIndex < childCount; outIndex++) {
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// Get the current child out of the source index
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QName* curChild = children[outIndex];
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// If its PCDATA, then we just accept that
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if (curChild->getURI() == XMLElementDecl::fgPCDataElemId)
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continue;
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ContentSpecNode::NodeTypes type = fChildTypes[inIndex];
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QName* inChild = fChildren[inIndex];
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if (type == ContentSpecNode::Leaf) {
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if ( !comparator.isEquivalentTo(curChild, inChild))
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{
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*indexFailingChild=outIndex;
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return false;
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}
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}
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else if (type == ContentSpecNode::Any) {
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}
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else if (type == ContentSpecNode::Any_NS) {
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if (inChild->getURI() != curChild->getURI())
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{
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*indexFailingChild=outIndex;
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return false;
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}
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}
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else if (type == ContentSpecNode::Any_Other)
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{
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// Here we assume that empty string has id 1.
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//
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unsigned int uriId = curChild->getURI();
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if (uriId == 1 || uriId == inChild->getURI())
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{
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*indexFailingChild=outIndex;
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return false;
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}
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}
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// advance index
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inIndex++;
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}
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}
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// can appear in any order
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else {
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for (unsigned int outIndex = 0; outIndex < childCount; outIndex++) {
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// Get the current child out of the source index
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QName* curChild = children[outIndex];
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// If its PCDATA, then we just accept that
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if (curChild->getURI() == XMLElementDecl::fgPCDataElemId)
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continue;
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// And try to find it in our list
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unsigned int inIndex = 0;
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for (; inIndex < fCount; inIndex++)
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{
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ContentSpecNode::NodeTypes type = fChildTypes[inIndex];
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QName* inChild = fChildren[inIndex];
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if (type == ContentSpecNode::Leaf) {
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if ( comparator.isEquivalentTo(curChild, inChild))
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break;
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}
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else if (type == ContentSpecNode::Any) {
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break;
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}
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else if (type == ContentSpecNode::Any_NS) {
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if (inChild->getURI() == curChild->getURI())
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break;
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}
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else if (type == ContentSpecNode::Any_Other)
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{
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// Here we assume that empty string has id 1.
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//
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unsigned int uriId = curChild->getURI();
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if (uriId != 1 && uriId != inChild->getURI())
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break;
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}
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// REVISIT: What about checking for multiple ANY matches?
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// The content model ambiguity *could* be checked
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// by the caller before constructing the mixed
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// content model.
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}
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// We did not find this one, so the validation failed
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if (inIndex == fCount)
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{
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*indexFailingChild=outIndex;
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return false;
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}
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}
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}
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// Everything seems to be in order, so return success
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return true;
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}
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// ---------------------------------------------------------------------------
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// MixedContentModel: Private helper methods
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// ---------------------------------------------------------------------------
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void
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MixedContentModel::buildChildList( ContentSpecNode* const curNode
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, ValueVectorOf<QName*>& toFill
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, ValueVectorOf<ContentSpecNode::NodeTypes>& toType)
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{
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// Get the type of spec node our current node is
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const ContentSpecNode::NodeTypes curType = curNode->getType();
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// If its a leaf, then store its id in the target list
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if ((curType == ContentSpecNode::Leaf) ||
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(curType == ContentSpecNode::Any) ||
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(curType == ContentSpecNode::Any_Other) ||
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(curType == ContentSpecNode::Any_NS) )
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{
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toFill.addElement(curNode->getElement());
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toType.addElement(curType);
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return;
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}
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// Get both the child node pointers
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ContentSpecNode* leftNode = curNode->getFirst();
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ContentSpecNode* rightNode = curNode->getSecond();
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// And recurse according to the type of node
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if (((curType & 0x0f) == ContentSpecNode::Choice)
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|| ((curType & 0x0f) == ContentSpecNode::Sequence))
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{
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// Recurse on the left and right nodes
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buildChildList(leftNode, toFill, toType);
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// The last node of a choice or sequence has a null right
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if (rightNode)
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buildChildList(rightNode, toFill, toType);
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}
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else if ((curType == ContentSpecNode::OneOrMore)
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|| (curType == ContentSpecNode::ZeroOrOne)
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|| (curType == ContentSpecNode::ZeroOrMore))
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{
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// Just do the left node on this one
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buildChildList(leftNode, toFill, toType);
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}
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}
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XERCES_CPP_NAMESPACE_END
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