C++ DOMDocumentImpl::getPooledString方法代码示例

DOMElementNSImpl::DOMElementNSImpl(DOMDocument *ownerDoc,
                                   const XMLCh *namespaceURI,
                                   const XMLCh *prefix,
                                   const XMLCh *localName,
                                   const XMLCh *qualifiedName)
    : DOMElementImpl(ownerDoc, qualifiedName)
{
  this->fSchemaType = 0;

  DOMDocumentImpl* docImpl = (DOMDocumentImpl*)fParent.fOwnerDocument;

  if (prefix == 0 || *prefix == 0)
  {
    fPrefix = 0;
    fLocalName = fName;
  }
  else
  {
    fPrefix = docImpl->getPooledString(prefix);
    fLocalName = docImpl->getPooledString(localName);
  }

  // DOM Level 3: namespace URI is never empty string.
  //
  const XMLCh * URI = DOMNodeImpl::mapPrefix (
    fPrefix,
    (!namespaceURI || !*namespaceURI) ? 0 : namespaceURI,
    DOMNode::ELEMENT_NODE);

  fNamespaceURI = (URI == 0) ? 0 : docImpl->getPooledString(URI);
}

void DOMElementNSImpl::setPrefix(const XMLCh *prefix)
{
    if (fNode.isReadOnly())
        throw DOMException(DOMException::NO_MODIFICATION_ALLOWED_ERR, 0, GetDOMNodeMemoryManager);
    if (fNamespaceURI == 0 || fNamespaceURI[0] == chNull)
        throw DOMException(DOMException::NAMESPACE_ERR, 0, GetDOMNodeMemoryManager);

    if (prefix == 0 || *prefix == 0) {
        fPrefix = 0;
        fName = fLocalName;
        return;
    }

    DOMDocumentImpl* doc = (DOMDocumentImpl*) fParent.fOwnerDocument;

    if(!doc->isXMLName(prefix))
        throw DOMException(DOMException::INVALID_CHARACTER_ERR,0, GetDOMNodeMemoryManager);

    const XMLCh * xml      = DOMNodeImpl::getXmlString();
    const XMLCh * xmlURI   = DOMNodeImpl::getXmlURIString();

    if (XMLString::equals(prefix, xml) &&
        !XMLString::equals(fNamespaceURI, xmlURI))
        throw DOMException(DOMException::NAMESPACE_ERR, 0, GetDOMNodeMemoryManager);


    if (XMLString::indexOf(prefix, chColon) != -1) {
        throw DOMException(DOMException::NAMESPACE_ERR, 0, GetDOMNodeMemoryManager);
    }

    this-> fPrefix = doc->getPooledString(prefix);

    XMLSize_t prefixLen = XMLString::stringLen(prefix);
    XMLSize_t newQualifiedNameLen = prefixLen+1+XMLString::stringLen(fLocalName);

    XMLCh *newName;
    XMLCh temp[256];
    if (newQualifiedNameLen >= 255)
      newName = (XMLCh*) doc->getMemoryManager()->allocate
        (
            newQualifiedNameLen * sizeof(XMLCh)
        );//new XMLCh[newQualifiedNameLen];
    else
        newName = temp;

    // newName = prefix + chColon + fLocalName;
    XMLString::copyString(newName, prefix);
    newName[prefixLen] = chColon;
    XMLString::copyString(&newName[prefixLen+1], fLocalName);

    fName = doc->getPooledString(newName);

    if (newQualifiedNameLen >= 255)
        doc->getMemoryManager()->deallocate(newName);//delete[] newName;

}

void DOMAttrNSImpl::setName(const XMLCh* namespaceURI, const XMLCh* qualifiedName)
{
    DOMDocumentImpl* ownerDoc = (DOMDocumentImpl *) getOwnerDocument();
    const XMLCh * xmlns = DOMNodeImpl::getXmlnsString();
    const XMLCh * xmlnsURI = DOMNodeImpl::getXmlnsURIString();
    this->fName = ownerDoc->getPooledString(qualifiedName);

    int index = DOMDocumentImpl::indexofQualifiedName(qualifiedName);
    if (index < 0)
        throw DOMException(DOMException::NAMESPACE_ERR, 0, GetDOMNodeMemoryManager);

    bool xmlnsAlone = false;	//true if attribute name is "xmlns"
    if (index == 0) {	//qualifiedName contains no ':'
        if (XMLString::equals(this->fName, xmlns)) {
            if (!XMLString::equals(namespaceURI, xmlnsURI))
                throw DOMException(DOMException::NAMESPACE_ERR, 0, GetDOMNodeMemoryManager);
            xmlnsAlone = true;
        }
        this -> fPrefix = 0;
        this -> fLocalName = this -> fName;
    } else {	//0 < index < this->name.length()-1
        XMLCh* newName;
        XMLCh temp[4000];
        if (index >= 3999)
            newName = (XMLCh*) ((DOMDocumentImpl *)this->getOwnerDocument())->getMemoryManager()->allocate
            (
                (XMLString::stringLen(qualifiedName) + 1) * sizeof(XMLCh)
            );//new XMLCh[XMLString::stringLen(qualifiedName)+1];
        else
            newName = temp;

        XMLString::copyNString(newName, fName, index);
        newName[index] = chNull;
        this-> fPrefix = ownerDoc->getPooledString(newName);
        this -> fLocalName = ownerDoc->getPooledString(fName+index+1);

        if (index >= 3999)
            ((DOMDocumentImpl *)this->getOwnerDocument())->getMemoryManager()->deallocate(newName);//delete[] newName;

        // Before we carry on, we should check if the prefix or localName are valid XMLName
        if (!((DOMDocumentImpl *)this->getOwnerDocument())->isXMLName(fPrefix) || !((DOMDocumentImpl *)this->getOwnerDocument())->isXMLName(fLocalName))
            throw DOMException(DOMException::NAMESPACE_ERR, 0, GetDOMNodeMemoryManager);
    }

    // DOM Level 3: namespace URI is never empty string.
    const XMLCh * URI = xmlnsAlone ? xmlnsURI
        : DOMNodeImpl::mapPrefix
          (
              fPrefix,
              (!namespaceURI || !*namespaceURI) ? 0 : namespaceURI,
              DOMNode::ATTRIBUTE_NODE
          );
    this -> fNamespaceURI = (URI == 0) ? 0 : ownerDoc->getPooledString(URI);
}

/**
 * NON-DOM
 * set the ownerDocument of this node and its children
 */
void DOMDocumentTypeImpl::setOwnerDocument(DOMDocument *doc) {

    if (castToNodeImpl(this)->getOwnerDocument()) {
        fNode.setOwnerDocument(doc);
        fParent.setOwnerDocument(doc);
    }
    else {
        if (doc) {
            DOMDocumentImpl *docImpl = (DOMDocumentImpl *)doc;

            fPublicId = docImpl->cloneString(fPublicId);
            fSystemId = docImpl->cloneString(fSystemId);
            fInternalSubset = docImpl->cloneString(fInternalSubset);
            fName = docImpl->getPooledString(fName);
            
            fNode.setOwnerDocument(doc);
            fParent.setOwnerDocument(doc);

            DOMNamedNodeMapImpl* entitiesTemp = fEntities->cloneMap(this);
            DOMNamedNodeMapImpl* notationsTemp = fNotations->cloneMap(this);
            DOMNamedNodeMapImpl* elementsTemp = fElements->cloneMap(this);

            fEntities = entitiesTemp;
            fNotations = notationsTemp;
            fElements = elementsTemp;
        }
    }
}

const XMLCh * DOMAttrImpl::getValue() const
{
    if (fParent.fFirstChild == 0) {
        return XMLUni::fgZeroLenString; // return "";
    }

    // Simple case where attribute value is just a single text node
    DOMNode *node = castToChildImpl(fParent.fFirstChild)->nextSibling;
    if (node == 0 && fParent.fFirstChild->getNodeType() == DOMNode::TEXT_NODE) {
        return fParent.fFirstChild->getNodeValue();
    }

    //
    // Complicated case where attribute value is a DOM tree
    //
    // According to the spec, the child nodes of the Attr node may be either
    // Text or EntityReference nodes.
    //
    // The parser will not create such thing, this is for those created by users.
    //
    // In such case, we have to visit each child to retrieve the text
    //

    DOMDocumentImpl* doc = (DOMDocumentImpl*)fParent.fOwnerDocument;

    XMLBuffer buf(1023, doc->getMemoryManager());
    for (node = fParent.fFirstChild; node != 0; node = castToChildImpl(node)->nextSibling)
        getTextValue(node, buf);

    return doc->getPooledString(buf.getRawBuffer());
}

//DOM Level 2
DOMDeepNodeListImpl::DOMDeepNodeListImpl(const DOMNode *rootNode,
                                       const XMLCh *namespaceURI,
                                       const XMLCh *localName)
    : fRootNode(rootNode)
    , fChanges(0)
    , fCurrentNode(0)
    , fCurrentIndexPlus1(0)
    , fMatchAllURI(false)
    , fMatchURIandTagname(true)
{
    DOMDocumentImpl* doc = (DOMDocumentImpl *)castToNodeImpl(rootNode)->getOwnerDocument();

    fTagName = doc->getPooledString(localName);
    fMatchAll = XMLString::equals(fTagName, kAstr);
    fMatchAllURI = XMLString::equals(namespaceURI, kAstr);
    fNamespaceURI = doc->getPooledString(namespaceURI);
}

void DOMElementNSImpl::setName(const XMLCh *namespaceURI,
                               const XMLCh *qualifiedName)
{
    DOMDocumentImpl* ownerDoc = (DOMDocumentImpl *) getOwnerDocument();
    this->fName = ownerDoc->getPooledString(qualifiedName);

    int index = DOMDocumentImpl::indexofQualifiedName(qualifiedName);
    if (index < 0)
        throw DOMException(DOMException::NAMESPACE_ERR, 0);

    if (index == 0) {	//qualifiedName contains no ':'
        this -> fPrefix = 0;
        this -> fLocalName = this -> fName;
    } else {	//0 < index < this->name.length()-1
        XMLCh* newName;
        XMLCh temp[4000];
        if (index >= 3999)
            newName = (XMLCh*) ownerDoc->getMemoryManager()->allocate
            (
                (XMLString::stringLen(qualifiedName) + 1) * sizeof(XMLCh)
            );//new XMLCh[XMLString::stringLen(qualifiedName)+1];
        else
            newName = temp;

        XMLString::copyNString(newName, fName, index);
        newName[index] = chNull;
        this-> fPrefix = ownerDoc->getPooledString(newName);
        this -> fLocalName = ownerDoc->getPooledString(fName+index+1);

        if (index >= 3999)
            ownerDoc->getMemoryManager()->deallocate(newName);//delete[] newName;

        // Before we carry on, we should check if the prefix or localName are valid XMLName
        if (!((DOMDocumentImpl *)this->getOwnerDocument())->isXMLName(fPrefix) || !((DOMDocumentImpl *)this->getOwnerDocument())->isXMLName(fLocalName))
            throw DOMException(DOMException::NAMESPACE_ERR, 0);
    }

    // DOM Level 3: namespace URI is never empty string.
    const XMLCh * URI = DOMNodeImpl::mapPrefix
        (
            fPrefix,
            (!namespaceURI || !*namespaceURI) ? 0 : namespaceURI,
            DOMNode::ELEMENT_NODE
        );
    this -> fNamespaceURI = (URI == 0) ? 0 : ownerDoc->getPooledString(URI);
}

XERCES_CPP_NAMESPACE_BEGIN

DOMAttrImpl::DOMAttrImpl(DOMDocument *ownerDoc, const XMLCh *aName)
    : fNode(ownerDoc), fParent (ownerDoc), fSchemaType(0)
{
    DOMDocumentImpl *docImpl = (DOMDocumentImpl *)ownerDoc;
    fName = docImpl->getPooledString(aName);
    fNode.isSpecified(true);
}

DOMElementImpl::DOMElementImpl(DOMDocument *ownerDoc, const XMLCh *eName)
    : fNode(ownerDoc), fParent(ownerDoc), fAttributes(0), fDefaultAttributes(0), fSchemaType(0)
{
    DOMDocumentImpl *docImpl = (DOMDocumentImpl *)ownerDoc;
    fName = docImpl->getPooledString(eName);
    setupDefaultAttributes();
    if (!fDefaultAttributes) {
        fDefaultAttributes = new (getOwnerDocument()) DOMAttrMapImpl(this);
        fAttributes = new (getOwnerDocument()) DOMAttrMapImpl(this);
    }
    else {
        fAttributes = new (getOwnerDocument()) DOMAttrMapImpl(this, fDefaultAttributes);
    }
}

DOMNode* DOMElementImpl::rename(const XMLCh* namespaceURI, const XMLCh* name)
{
    DOMDocumentImpl* doc = (DOMDocumentImpl*) fParent.fOwnerDocument;

    if (!namespaceURI || !*namespaceURI) {
        fName = doc->getPooledString(name);
        fAttributes->reconcileDefaultAttributes(getDefaultAttributes());

        // and fire user data NODE_RENAMED event
        castToNodeImpl(this)->callUserDataHandlers(DOMUserDataHandler::NODE_RENAMED, this, this);

        return this;
    }
    else {

        // create a new ElementNS
        DOMElementNSImpl* newElem = (DOMElementNSImpl*)doc->createElementNS(namespaceURI, name);

        // transfer the userData
        doc->transferUserData(castToNodeImpl(this), castToNodeImpl(newElem));

        // remove old node from parent if any
        DOMNode* parent = getParentNode();
        DOMNode* nextSib = getNextSibling();
        if (parent) {
            parent->removeChild(this);
        }

        // move children to new node
        DOMNode* child = getFirstChild();
        while (child) {
            removeChild(child);
            newElem->appendChild(child);
            child = getFirstChild();
        }

        // insert new node where old one was
        if (parent) {
            parent->insertBefore(newElem, nextSib);
        }

        // move specified attributes to new node
        newElem->fAttributes->moveSpecifiedAttributes(fAttributes);

        // and fire user data NODE_RENAMED event
        castToNodeImpl(newElem)->callUserDataHandlers(DOMUserDataHandler::NODE_RENAMED, this, newElem);

        return newElem;
    }
}

void DOMElementNSImpl::setName(const XMLCh *namespaceURI,
                               const XMLCh *qualifiedName)
{
    DOMDocumentImpl* ownerDoc = (DOMDocumentImpl *) fParent.fOwnerDocument;
    this->fName = ownerDoc->getPooledString(qualifiedName);

    int index = DOMDocumentImpl::indexofQualifiedName(qualifiedName);
    if (index < 0)
        throw DOMException(DOMException::NAMESPACE_ERR, 0, GetDOMNodeMemoryManager);

    if (index == 0)
    {
        //qualifiedName contains no ':'
        //
        fPrefix = 0;
        fLocalName = fName;
    }
    else
    {	//0 < index < this->name.length()-1
        //
        fPrefix = ownerDoc->getPooledNString(qualifiedName, index);
        fLocalName = ownerDoc->getPooledString(fName+index+1);

        // Before we carry on, we should check if the prefix or localName are valid XMLName
        if (!ownerDoc->isXMLName(fPrefix) || !ownerDoc->isXMLName(fLocalName))
          throw DOMException(DOMException::NAMESPACE_ERR, 0, GetDOMNodeMemoryManager);
    }

    // DOM Level 3: namespace URI is never empty string.
    //
    const XMLCh * URI = DOMNodeImpl::mapPrefix (
      fPrefix,
      (!namespaceURI || !*namespaceURI) ? 0 : namespaceURI,
      DOMNode::ELEMENT_NODE);

    fNamespaceURI = (URI == 0) ? 0 : ownerDoc->getPooledString(URI);
}

DOMNode* DOMAttrImpl::rename(const XMLCh* namespaceURI, const XMLCh* name)
{
    DOMElement* el = getOwnerElement();
    DOMDocumentImpl* doc = (DOMDocumentImpl*)fParent.fOwnerDocument;

    if (el)
        el->removeAttributeNode(this);

    if (!namespaceURI || !*namespaceURI) {
        fName = doc->getPooledString(name);

        if (el)
            el->setAttributeNode(this);

        // and fire user data NODE_RENAMED event
        castToNodeImpl(this)->callUserDataHandlers(DOMUserDataHandler::NODE_RENAMED, this, this);

        return this;
    }
    else {

        // create a new AttrNS
        DOMAttr* newAttr = doc->createAttributeNS(namespaceURI, name);

        // transfer the userData
        doc->transferUserData(castToNodeImpl(this), castToNodeImpl(newAttr));

        // move children to new node
        DOMNode* child = getFirstChild();
        while (child) {
            removeChild(child);
            newAttr->appendChild(child);
            child = getFirstChild();
        }

        // reattach attr to element
        if (el)
            el->setAttributeNodeNS(newAttr);

        // and fire user data NODE_RENAMED event
        castToNodeImpl(newAttr)->callUserDataHandlers(DOMUserDataHandler::NODE_RENAMED, this, newAttr);

        return newAttr;
    }
}

const XMLCh * DOMCharacterDataImpl::substringData(const DOMNode *node, XMLSize_t offset,
                                           XMLSize_t count) const
{

    // Note: the C++ XMLCh * operation throws the correct DOMExceptions
    //       when parameter values are bad.
    //


    XMLSize_t len = fDataBuf->getLen();

    if (offset > len)
        throw DOMException(DOMException::INDEX_SIZE_ERR, 0, GetDOMCharacterDataImplMemoryManager);

    DOMDocumentImpl *doc = (DOMDocumentImpl *)node->getOwnerDocument();

    XMLCh* newString;
    XMLCh temp[4096];
    if (len >= 4095)
      newString = (XMLCh*) doc->getMemoryManager()->allocate
        (
            (len + 1) * sizeof(XMLCh)
        );//new XMLCh[len+1];
    else
        newString = temp;

    XMLString::copyNString(newString, fDataBuf->getRawBuffer()+offset, count);
    newString[count] = chNull;

    const XMLCh* retString = doc->getPooledString(newString);

    if (len >= 4095)
      doc->getMemoryManager()->deallocate(newString);//delete[] newString;

    return retString;

}