| /* |
| * 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. |
| */ |
| |
| /* |
| * $Id: DOMImplementationImpl.cpp 568078 2007-08-21 11:43:25Z amassari $ |
| */ |
| |
| #include "DOMImplementationImpl.hpp" |
| #include "DOMDocumentImpl.hpp" |
| #include "DOMDocumentTypeImpl.hpp" |
| #include "DOMWriterImpl.hpp" |
| |
| #include <xercesc/dom/DOMDocument.hpp> |
| #include <xercesc/dom/DOMDocumentType.hpp> |
| #include <xercesc/dom/DOMException.hpp> |
| #include <xercesc/util/PlatformUtils.hpp> |
| #include <xercesc/util/XMLInitializer.hpp> |
| #include <xercesc/util/XMLUniDefs.hpp> |
| #include <xercesc/util/XMLChar.hpp> |
| #include <xercesc/util/XMLRegisterCleanup.hpp> |
| #include <xercesc/util/XMLStringTokenizer.hpp> |
| #include <xercesc/util/XMLDOMMsg.hpp> |
| #include <xercesc/util/XMLMsgLoader.hpp> |
| #include <xercesc/parsers/DOMBuilderImpl.hpp> |
| |
| XERCES_CPP_NAMESPACE_BEGIN |
| |
| |
| // ------------------------------------------------------------ |
| // |
| // Static constants. These are lazily initialized on first usage. |
| // (Static constructors can not be safely used because |
| // of order of initialization dependencies.) |
| // ------------------------------------------------------------ |
| static const XMLCh g1_0[] = // Points to "1.0" |
| {chDigit_1, chPeriod, chDigit_0, chNull}; |
| static const XMLCh g2_0[] = // Points to "2.0" |
| {chDigit_2, chPeriod, chDigit_0, chNull}; |
| static const XMLCh g3_0[] = // Points to "3.0" |
| {chDigit_3, chPeriod, chDigit_0, chNull}; |
| static const XMLCh gTrav[] = // Points to "Traversal" |
| {chLatin_T, chLatin_r, chLatin_a, chLatin_v, chLatin_e, chLatin_r, |
| chLatin_s, chLatin_a, chLatin_l, chNull}; |
| static const XMLCh gCore[] = // Points to "Core" |
| {chLatin_C, chLatin_o, chLatin_r, chLatin_e, chNull}; |
| static const XMLCh gRange[] = // Points to "Range" |
| {chLatin_R, chLatin_a, chLatin_n, chLatin_g, chLatin_e, chNull}; |
| static const XMLCh gLS[] = // Points to "LS" |
| {chLatin_L, chLatin_S, chNull}; |
| |
| |
| // ----------------------------------------------------------------------- |
| // Message Loader for DOM |
| // ----------------------------------------------------------------------- |
| static XMLMsgLoader *sMsgLoader4DOM = 0; // Points to the singleton instance |
| static XMLMutex *sMutex4DOM = 0; |
| static XMLRegisterCleanup mutex4DOMCleanup; |
| static XMLRegisterCleanup msgLoader4DOMCleanup; |
| |
| static void reinitMsgLoader4DOM() |
| { |
| delete sMsgLoader4DOM; |
| sMsgLoader4DOM = 0; |
| } |
| |
| static void reinitMutex4DOM() |
| { |
| delete sMutex4DOM; |
| sMutex4DOM = 0; |
| } |
| |
| static XMLMutex& getMutex4DOM() |
| { |
| if (!sMutex4DOM) |
| { |
| XMLMutexLock lock(XMLPlatformUtils::fgAtomicMutex); |
| |
| // If we got here first, then register it and set the registered flag |
| if (!sMutex4DOM) |
| { |
| sMutex4DOM = new XMLMutex(XMLPlatformUtils::fgMemoryManager); |
| mutex4DOMCleanup.registerCleanup(reinitMutex4DOM); |
| } |
| } |
| return *sMutex4DOM; |
| } |
| |
| XMLMsgLoader* DOMImplementationImpl::getMsgLoader4DOM() |
| { |
| if (!sMsgLoader4DOM) |
| { |
| XMLMutexLock lock(&getMutex4DOM()); |
| |
| if (!sMsgLoader4DOM) |
| { |
| sMsgLoader4DOM = XMLPlatformUtils::loadMsgSet(XMLUni::fgXMLDOMMsgDomain); |
| |
| if (!sMsgLoader4DOM) |
| XMLPlatformUtils::panic(PanicHandler::Panic_CantLoadMsgDomain); |
| else |
| msgLoader4DOMCleanup.registerCleanup(reinitMsgLoader4DOM); |
| } |
| } |
| |
| return sMsgLoader4DOM; |
| } |
| |
| void XMLInitializer::initializeMsgLoader4DOM() |
| { |
| sMsgLoader4DOM = XMLPlatformUtils::loadMsgSet(XMLUni::fgXMLDOMMsgDomain); |
| if (sMsgLoader4DOM) { |
| msgLoader4DOMCleanup.registerCleanup(reinitMsgLoader4DOM); |
| } |
| } |
| |
| // ----------------------------------------------------------------------- |
| // Singleton DOMImplementationImpl |
| // ----------------------------------------------------------------------- |
| static DOMImplementationImpl *gDomimp = 0; // Points to the singleton instance |
| // of DOMImplementation that is returnedreturned |
| // by any call to getImplementation(). |
| static XMLRegisterCleanup implementationCleanup; |
| |
| static void reinitImplementation() |
| { |
| delete gDomimp; |
| gDomimp = 0; |
| } |
| |
| // getImplementation() - Always returns the same singleton instance, which |
| // is lazily created on the first call. Note that |
| // DOM_Implementation must be thread-safe because |
| // it is common to all DOM documents, and while a single |
| // document is not thread-safe within itself, we do |
| // promise that different documents can safely be |
| // used concurrently by different threads. |
| // |
| DOMImplementationImpl *DOMImplementationImpl::getDOMImplementationImpl() |
| { |
| if (!gDomimp) |
| { |
| XMLMutexLock lock(&getMutex4DOM()); |
| |
| if (!gDomimp) |
| { |
| gDomimp = new DOMImplementationImpl; |
| implementationCleanup.registerCleanup(reinitImplementation); |
| } |
| } |
| |
| return gDomimp; |
| } |
| |
| void XMLInitializer::initializeDOMImplementationImpl() |
| { |
| gDomimp = new DOMImplementationImpl; |
| if (gDomimp) { |
| implementationCleanup.registerCleanup(reinitImplementation); |
| } |
| } |
| |
| // ------------------------------------------------------------ |
| // DOMImplementation Virtual interface |
| // ------------------------------------------------------------ |
| bool DOMImplementationImpl::hasFeature(const XMLCh * feature, const XMLCh * version) const |
| { |
| if (!feature) |
| return false; |
| |
| bool anyVersion = (version == 0 || !*version); |
| bool version1_0 = XMLString::equals(version, g1_0); |
| bool version2_0 = XMLString::equals(version, g2_0); |
| bool version3_0 = XMLString::equals(version, g3_0); |
| |
| // Currently, we support only XML Level 1 version 1.0 |
| if (XMLString::compareIStringASCII(feature, XMLUni::fgXMLString) == 0 |
| && (anyVersion || version1_0 || version2_0)) |
| return true; |
| |
| if (XMLString::compareIStringASCII(feature, gCore) == 0 |
| && (anyVersion || version1_0 || version2_0 || version3_0)) |
| return true; |
| |
| if (XMLString::compareIStringASCII(feature, gTrav) == 0 |
| && (anyVersion || version2_0)) |
| return true; |
| |
| if (XMLString::compareIStringASCII(feature, gRange) == 0 |
| && (anyVersion || version2_0)) |
| return true; |
| |
| if (XMLString::compareIStringASCII(feature, gLS) == 0 |
| && (anyVersion || version3_0)) |
| return true; |
| |
| return false; |
| } |
| |
| |
| //Introduced in DOM Level 2 |
| DOMDocumentType *DOMImplementationImpl::createDocumentType(const XMLCh *qualifiedName, |
| const XMLCh * publicId, const XMLCh *systemId) |
| { |
| // assume XML 1.0 since we do not know its version yet. |
| if(!XMLChar1_0::isValidName(qualifiedName)) |
| throw DOMException(DOMException::INVALID_CHARACTER_ERR, 0); |
| |
| //to do: do we need to create with user's memorymanager??? |
| DOMDocumentTypeImpl* docType = new DOMDocumentTypeImpl(0, qualifiedName, publicId, systemId, true); |
| return docType; |
| } |
| |
| DOMDocument *DOMImplementationImpl::createDocument(const XMLCh *namespaceURI, |
| const XMLCh *qualifiedName, DOMDocumentType *doctype, |
| MemoryManager* const manager) |
| { |
| return new (manager) DOMDocumentImpl(namespaceURI, qualifiedName, doctype, manager); |
| } |
| |
| |
| //Introduced in DOM Level 3 |
| DOMImplementation* DOMImplementationImpl::getInterface(const XMLCh*){ |
| throw DOMException(DOMException::NOT_SUPPORTED_ERR, 0); |
| |
| return 0; |
| } |
| |
| // Non-standard extension |
| DOMDocument *DOMImplementationImpl::createDocument(MemoryManager* const manager) |
| { |
| return new (manager) DOMDocumentImpl(manager); |
| } |
| |
| // |
| // DOMImplementation::getImplementation. DOMImplementation is supposed to |
| // be a pure interface class. This one static |
| // function is the hook that lets things get started. |
| DOMImplementation *DOMImplementation::getImplementation() |
| { |
| return (DOMImplementation*) DOMImplementationImpl::getDOMImplementationImpl(); |
| } |
| |
| bool DOMImplementation::loadDOMExceptionMsg |
| ( |
| const DOMException::ExceptionCode msgToLoad |
| , XMLCh* const toFill |
| , const unsigned int maxChars |
| ) |
| { |
| // load the text, the msgToLoad+XMLDOMMsgs::DOMEXCEPTION_ERRX+msgToLoad is the corresponding XMLDOMMsg Code |
| return DOMImplementationImpl::getMsgLoader4DOM()->loadMsg(XMLDOMMsg::DOMEXCEPTION_ERRX+msgToLoad, toFill, maxChars); |
| } |
| |
| bool DOMImplementation::loadDOMExceptionMsg |
| ( |
| const DOMRangeException::RangeExceptionCode msgToLoad |
| , XMLCh* const toFill |
| , const unsigned int maxChars |
| ) |
| { |
| // load the text, the XMLDOMMsgs::DOMRANGEEXCEPTION_ERRX+msgToLoad is the corresponding XMLDOMMsg Code |
| return DOMImplementationImpl::getMsgLoader4DOM()->loadMsg(XMLDOMMsg::DOMRANGEEXCEPTION_ERRX+msgToLoad, toFill, maxChars); |
| } |
| |
| // ------------------------------------------------------------ |
| // DOMImplementationLS Virtual interface |
| // ------------------------------------------------------------ |
| //Introduced in DOM Level 3 |
| DOMBuilder* DOMImplementationImpl::createDOMBuilder(const short mode, |
| const XMLCh* const, |
| MemoryManager* const manager, |
| XMLGrammarPool* const gramPool) |
| { |
| if (mode == DOMImplementationLS::MODE_ASYNCHRONOUS) |
| throw DOMException(DOMException::NOT_SUPPORTED_ERR, 0, manager); |
| |
| return new (manager) DOMBuilderImpl(0, manager, gramPool); |
| } |
| |
| |
| DOMWriter* DOMImplementationImpl::createDOMWriter(MemoryManager* const manager) |
| { |
| return new (manager) DOMWriterImpl(manager); |
| } |
| |
| DOMInputSource* DOMImplementationImpl::createDOMInputSource() |
| { |
| throw DOMException(DOMException::NOT_SUPPORTED_ERR, 0); |
| |
| return 0; |
| } |
| |
| |
| // ------------------------------------------------------------ |
| // DOMImplementationSource Virtual interface |
| // ------------------------------------------------------------ |
| DOMImplementation* DOMImplementationImpl::getDOMImplementation(const XMLCh* features) const |
| { |
| DOMImplementation* impl = DOMImplementation::getImplementation(); |
| |
| XMLStringTokenizer tokenizer(features, XMLPlatformUtils::fgMemoryManager); |
| const XMLCh* feature = 0; |
| |
| while (feature || tokenizer.hasMoreTokens()) { |
| |
| if (!feature) |
| feature = tokenizer.nextToken(); |
| |
| const XMLCh* version = 0; |
| const XMLCh* token = tokenizer.nextToken(); |
| |
| if (token && XMLString::isDigit(token[0])) |
| version = token; |
| |
| if (!impl->hasFeature(feature, version)) |
| return 0; |
| |
| if (!version) |
| feature = token; |
| } |
| return impl; |
| } |
| |
| |
| XERCES_CPP_NAMESPACE_END |
| |
