Line data    Source code

       1              : /****************************************************************************/
       2              : // Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
       3              : // Copyright (C) 2002-2024 German Aerospace Center (DLR) and others.
       4              : // This program and the accompanying materials are made available under the
       5              : // terms of the Eclipse Public License 2.0 which is available at
       6              : // https://www.eclipse.org/legal/epl-2.0/
       7              : // This Source Code may also be made available under the following Secondary
       8              : // Licenses when the conditions for such availability set forth in the Eclipse
       9              : // Public License 2.0 are satisfied: GNU General Public License, version 2
      10              : // or later which is available at
      11              : // https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
      12              : // SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
      13              : /****************************************************************************/
      14              : /// @file    IStreamInputSource.h
      15              : /// @author  Michael Behrisch
      16              : /// @author  Gilles Filippini
      17              : /// @date    Sept 2002
      18              : ///
      19              : // Xerces InputSource reading from arbitrary std::istream
      20              : // reimplementation inspired by https://marc.info/?l=xerces-dev&m=86952133511623
      21              : /****************************************************************************/
      22              : #pragma once
      23              : #include <config.h>
      24              : #include <iostream>
      25              : #include <xercesc/util/BinInputStream.hpp>
      26              : #include <xercesc/sax/InputSource.hpp>
      27              : 
      28              : 
      29              : // ===========================================================================
      30              : // class definitions
      31              : // ===========================================================================
      32              : /**
      33              :  * @class IStreamBinInputStream
      34              :  * @brief Xerces BinInputStream reading from arbitrary std::istream
      35              :  */
      36              : class IStreamBinInputStream : public XERCES_CPP_NAMESPACE::BinInputStream {
      37              : public:
      38       375890 :     IStreamBinInputStream(std::istream& in) : myIn(in) { }
      39       187908 :     virtual ~IStreamBinInputStream(void) { }
      40            0 :     virtual XMLFilePos curPos(void) const {
      41            0 :         return myIn.tellg();
      42              :     }
      43       408114 :     virtual XMLSize_t readBytes(XMLByte* const buf, const XMLSize_t max) {
      44       408114 :         myIn.read((char*)buf, max);
      45       408114 :         return (XMLSize_t)myIn.gcount();
      46              :     }
      47            0 :     virtual const XMLCh* getContentType() const {
      48            0 :         return nullptr;
      49              :     }
      50              : private:
      51              :     std::istream& myIn;
      52              : };
      53              : 
      54              : 
      55              : /**
      56              :  * @class IStreamInputSource
      57              :  * @brief Xerces InputSource reading from arbitrary std::istream
      58              :  */
      59              : class IStreamInputSource : public XERCES_CPP_NAMESPACE::InputSource {
      60              : public:
      61       187945 :     IStreamInputSource(std::istream& in) :
      62       187945 :         XERCES_CPP_NAMESPACE::InputSource("istream"), myIn(in) { }
      63       185162 :     virtual ~IStreamInputSource(void) { }
      64       187945 :     virtual XERCES_CPP_NAMESPACE::BinInputStream* makeStream(void) const {
      65       187945 :         return new IStreamBinInputStream(myIn);
      66              :     }
      67              : private:
      68              :     std::istream& myIn;
      69              : };