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      269556 :     IStreamBinInputStream(std::istream& in) : myIn(in) { }
      39      134741 :     virtual ~IStreamBinInputStream(void) { }
      40           0 :     virtual XMLFilePos curPos(void) const {
      41           0 :         return myIn.tellg();
      42             :     }
      43      285905 :     virtual XMLSize_t readBytes(XMLByte* const buf, const XMLSize_t max) {
      44      285905 :         myIn.read((char*)buf, max);
      45      285905 :         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      134778 :     IStreamInputSource(std::istream& in) :
      62      134778 :         XERCES_CPP_NAMESPACE::InputSource("istream"), myIn(in) { }
      63      134319 :     virtual ~IStreamInputSource(void) { }
      64      134778 :     virtual XERCES_CPP_NAMESPACE::BinInputStream* makeStream(void) const {
      65      134778 :         return new IStreamBinInputStream(myIn);
      66             :     }
      67             : private:
      68             :     std::istream& myIn;
      69             : };