GME  13
Wrapper4DOMLSInput.cpp
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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 /*
00019  * $Id: Wrapper4DOMLSInput.cpp 471747 2006-11-06 14:31:56Z amassari $
00020  */
00021 
00022 
00023 // ---------------------------------------------------------------------------
00024 //  Includes
00025 // ---------------------------------------------------------------------------
00026 #include <xercesc/framework/Wrapper4DOMLSInput.hpp>
00027 #include <xercesc/dom/DOMLSInput.hpp>
00028 #include <xercesc/dom/DOMLSResourceResolver.hpp>
00029 #include <xercesc/util/NullPointerException.hpp>
00030 #include <xercesc/util/XMLString.hpp>
00031 #include <xercesc/framework/MemBufInputSource.hpp>
00032 #include <xercesc/framework/LocalFileInputSource.hpp>
00033 #include <xercesc/framework/URLInputSource.hpp>
00034 
00035 XERCES_CPP_NAMESPACE_BEGIN
00036 
00037 // ---------------------------------------------------------------------------
00038 //  Wrapper4DOMLSInput: Constructor and Destructor
00039 // ---------------------------------------------------------------------------
00040 Wrapper4DOMLSInput::Wrapper4DOMLSInput(DOMLSInput* const inputSource,
00041                                        DOMLSResourceResolver* entityResolver,
00042                                        const bool adoptFlag,
00043                                        MemoryManager* const  manager) :
00044     InputSource(manager)
00045     , fAdoptInputSource(adoptFlag)
00046     , fForceXMLChEncoding(false)
00047     , fInputSource(inputSource)
00048     , fEntityResolver(entityResolver)
00049 {
00050     if (!inputSource)
00051         ThrowXMLwithMemMgr(NullPointerException, XMLExcepts::CPtr_PointerIsZero, getMemoryManager());
00052 }
00053 
00054 Wrapper4DOMLSInput::~Wrapper4DOMLSInput()
00055 {
00056     if (fAdoptInputSource)
00057         delete fInputSource;
00058 }
00059 
00060 
00061 // ---------------------------------------------------------------------------
00062 //  Wrapper4DOMLSInput: Getter methods
00063 // ---------------------------------------------------------------------------
00064 bool Wrapper4DOMLSInput::getIssueFatalErrorIfNotFound() const
00065 {
00066     return fInputSource->getIssueFatalErrorIfNotFound();
00067 }
00068 
00069 const XMLCh* Wrapper4DOMLSInput::getEncoding() const
00070 {
00071     if(fForceXMLChEncoding)
00072         return XMLUni::fgXMLChEncodingString;
00073     return fInputSource->getEncoding();
00074 }
00075 
00076 const XMLCh* Wrapper4DOMLSInput::getSystemId() const
00077 {
00078     return fInputSource->getSystemId();
00079 }
00080 
00081 const XMLCh* Wrapper4DOMLSInput::getPublicId() const
00082 {
00083     return fInputSource->getPublicId();
00084 }
00085 
00086 
00087 // ---------------------------------------------------------------------------
00088 //  Wrapper4DOMLSInput: Setter methods
00089 // ---------------------------------------------------------------------------
00090 void Wrapper4DOMLSInput::setIssueFatalErrorIfNotFound(const bool flag)
00091 {
00092     fInputSource->setIssueFatalErrorIfNotFound(flag);
00093 }
00094 
00095 
00096 void Wrapper4DOMLSInput::setEncoding(const XMLCh* const encodingStr)
00097 {
00098     fInputSource->setEncoding(encodingStr);
00099 }
00100 
00101 
00102 void Wrapper4DOMLSInput::setPublicId(const XMLCh* const publicId)
00103 {
00104     fInputSource->setPublicId(publicId);
00105 }
00106 
00107 
00108 void Wrapper4DOMLSInput::setSystemId(const XMLCh* const systemId)
00109 {
00110     fInputSource->setSystemId(systemId);
00111 }
00112 
00113 
00114 // ---------------------------------------------------------------------------
00115 //  Wrapper4DOMLSInput: Stream methods
00116 // ---------------------------------------------------------------------------
00117 BinInputStream* Wrapper4DOMLSInput::makeStream() const
00118 {
00119     // The LSParser will use the LSInput object to determine how to read data. The LSParser will look at the different inputs specified in the 
00120     // LSInput in the following order to know which one to read from, the first one that is not null and not an empty string will be used:
00121     //   1. LSInput.characterStream
00122     //   2. LSInput.byteStream
00123     //   3. LSInput.stringData
00124     //   4. LSInput.systemId
00125     //   5. LSInput.publicId
00126     InputSource* binStream=fInputSource->getByteStream();
00127     if(binStream)
00128         return binStream->makeStream();
00129     const XMLCh* xmlString=fInputSource->getStringData();
00130     if(xmlString)
00131     {
00132         MemBufInputSource is((const XMLByte*)xmlString, XMLString::stringLen(xmlString)*sizeof(XMLCh), "", false, getMemoryManager());
00133         is.setCopyBufToStream(false);
00134         return is.makeStream();
00135     }
00136     const XMLCh* szSystemId=fInputSource->getSystemId();
00137     if(szSystemId)
00138     {
00139         XMLURL urlTmp(getMemoryManager());
00140         if (urlTmp.setURL(szSystemId, fInputSource->getBaseURI(), urlTmp) && !urlTmp.isRelative())
00141         {
00142             URLInputSource src(urlTmp, getMemoryManager());
00143             return src.makeStream();
00144         }          
00145         LocalFileInputSource src(szSystemId, getMemoryManager());
00146         return src.makeStream();
00147     }
00148     const XMLCh* szPublicId=fInputSource->getPublicId();
00149     if(szPublicId && fEntityResolver)
00150     {
00151         DOMLSInput* is = fEntityResolver->resolveResource(XMLUni::fgDOMDTDType, 0, szPublicId, 0, fInputSource->getBaseURI());
00152         if (is)
00153             return Wrapper4DOMLSInput(is, fEntityResolver, true, getMemoryManager()).makeStream();
00154     }
00155 
00156     return 0;
00157 }
00158 
00159 XERCES_CPP_NAMESPACE_END
00160