| /* |
| * 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: BinURLInputStream.hpp 568078 2007-08-21 11:43:25Z amassari $ |
| */ |
| |
| #if !defined(BINURLINPUTSTREAM_HPP) |
| #define BINURLINPUTSTREAM_HPP |
| |
| |
| #include <xercesc/util/XMLURL.hpp> |
| #include <xercesc/util/XMLExceptMsgs.hpp> |
| #include <xercesc/util/BinInputStream.hpp> |
| |
| // |
| // Forward reference the libWWW constructs here, so as to avoid including |
| // any of the libWWW headers in this file. Just being careful in isolating |
| // the files that explicitly need to include the libWWW headers. |
| // |
| |
| struct _HTAnchor; |
| |
| XERCES_CPP_NAMESPACE_BEGIN |
| |
| // |
| // This class implements the BinInputStream interface specified by the XML |
| // parser. |
| // |
| |
| class XMLUTIL_EXPORT BinURLInputStream : public BinInputStream |
| { |
| public : |
| BinURLInputStream(const XMLURL& urlSource); |
| ~BinURLInputStream(); |
| |
| unsigned int curPos() const; |
| unsigned int readBytes |
| ( |
| XMLByte* const toFill |
| , const unsigned int maxToRead |
| ); |
| void reset(); |
| unsigned int bytesAvail() const; |
| |
| |
| private : |
| // ----------------------------------------------------------------------- |
| // Unimplemented constructors and operators |
| // ----------------------------------------------------------------------- |
| BinURLInputStream(const BinURLInputStream&); |
| BinURLInputStream& operator=(const BinURLInputStream&); |
| |
| // ----------------------------------------------------------------------- |
| // Private data members |
| // |
| // fAnchor |
| // This is the handle that LibWWW returns for the remote file that |
| // is being addressed. |
| // fBuffer |
| // This is the array in which the data is stored after reading it |
| // of the network. The maximum size of this array is decided in the |
| // constructor via a file specific #define. |
| // fBufferIndex |
| // Its the index into fBuffer and points to the next unprocessed |
| // character. When the parser asks for more data to be read of the |
| // stream, then fBuffer[fBufferIndex] is the first byte returned, |
| // unless fBufferIndex equals fBufferSize indicating that all |
| // data in the fBuffer has been processed. |
| // fBufferSize |
| // This represents the extent of valid data in the fBuffer array. |
| // fRemoteFileSize |
| // This stores the size in bytes of the remote file addressed by |
| // this URL input stream. |
| // fBytesProcessed |
| // Its a rolling count of the number of bytes processed off this |
| // input stream. Its only reset back to zero, if the stream is |
| // reset. The maximum value this can have is fRemoteFileSize. |
| // ----------------------------------------------------------------------- |
| |
| struct _HTAnchor* fAnchor; |
| XMLByte* fBuffer; |
| unsigned int fBufferIndex; |
| unsigned int fBufferSize; |
| int fRemoteFileSize; |
| unsigned int fBytesProcessed; |
| MemoryManager* fMemoryManager; |
| }; |
| |
| XERCES_CPP_NAMESPACE_END |
| |
| #endif // BINURLINPUTSTREAM_HPP |