GME
13
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00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one or more 00003 * contributor license agreements. See the NOTICE file distributed with 00004 * this work for additional information regarding copyright ownership. 00005 * The ASF licenses this file to You under the Apache License, Version 2.0 00006 * (the "License"); you may not use this file except in compliance with 00007 * the License. You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 00018 #include "DOMXPathNSResolverImpl.hpp" 00019 #include <xercesc/dom/DOMNode.hpp> 00020 #include <xercesc/util/XMLString.hpp> 00021 #include <xercesc/util/Janitor.hpp> 00022 #include <xercesc/util/XMLString.hpp> 00023 00024 XERCES_CPP_NAMESPACE_BEGIN 00025 00026 DOMXPathNSResolverImpl::DOMXPathNSResolverImpl(const DOMNode *nodeResolver, MemoryManager* const manager) : 00027 fNamespaceBindings(0), 00028 fResolverNode(nodeResolver), 00029 fManager(manager) 00030 { 00031 fNamespaceBindings = new (fManager) RefHashTableOf<KVStringPair>(7, true, fManager); 00032 } 00033 00034 DOMXPathNSResolverImpl::~DOMXPathNSResolverImpl() 00035 { 00036 delete fNamespaceBindings; 00037 } 00038 00039 const XMLCh* DOMXPathNSResolverImpl::lookupNamespaceURI(const XMLCh* prefix) const 00040 { 00041 if(prefix == 0) prefix = XMLUni::fgZeroLenString; 00042 00043 if(XMLString::equals(prefix, XMLUni::fgXMLString)) 00044 return XMLUni::fgXMLURIName; 00045 00046 const KVStringPair *pair = fNamespaceBindings->get((void*)prefix); 00047 if(pair) { 00048 00049 // An empty namespace URI indicated that this binding was removed 00050 // by the user. 00051 // 00052 if(*pair->getValue() == 0) return NULL; 00053 00054 return pair->getValue(); 00055 } 00056 00057 if(fResolverNode) 00058 return fResolverNode->lookupNamespaceURI( 00059 *prefix == 0 ? 0 : prefix); // Expects 0 for default namespace. 00060 00061 return NULL; 00062 } 00063 00064 const XMLCh* DOMXPathNSResolverImpl::lookupPrefix(const XMLCh* uri) const 00065 { 00066 if (uri == 0 || *uri == 0) 00067 return 0; 00068 00069 if(XMLString::equals(uri, XMLUni::fgXMLURIName)) 00070 return XMLUni::fgXMLString; 00071 00072 RefHashTableOfEnumerator<KVStringPair> enumerator((RefHashTableOf<KVStringPair>*)fNamespaceBindings); 00073 while(enumerator.hasMoreElements()) { 00074 KVStringPair &pair = enumerator.nextElement(); 00075 if(XMLString::equals(pair.getValue(), uri)) { 00076 return pair.getKey(); 00077 } 00078 } 00079 00080 if(fResolverNode) 00081 { 00082 const XMLCh* r = fResolverNode->lookupPrefix(uri); 00083 00084 if (r == 0 && fResolverNode->isDefaultNamespace(uri)) 00085 r = XMLUni::fgZeroLenString; 00086 00087 return r; 00088 } 00089 00090 return 0; 00091 } 00092 00093 void DOMXPathNSResolverImpl::addNamespaceBinding(const XMLCh* prefix, const XMLCh* uri) 00094 { 00095 if(prefix == 0) prefix = XMLUni::fgZeroLenString; 00096 if(uri == 0) uri = XMLUni::fgZeroLenString; 00097 00098 KVStringPair* pair = new (fManager) KVStringPair(prefix, uri, fManager); 00099 00100 fNamespaceBindings->put((void*)pair->getKey(), pair); 00101 } 00102 00103 void DOMXPathNSResolverImpl::release() 00104 { 00105 DOMXPathNSResolverImpl* me=(DOMXPathNSResolverImpl*)this; 00106 delete me; 00107 } 00108 00109 XERCES_CPP_NAMESPACE_END