Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : #ifndef HELPDATAFILEPROXY_DB_HXX_
      20             : #define HELPDATAFILEPROXY_DB_HXX_
      21             : 
      22             : #include <com/sun/star/ucb/XSimpleFileAccess3.hpp>
      23             : 
      24             : #include <config_global.h>
      25             : #if !HAVE_CXX11
      26             : #define BOOST_NO_0X_HDR_TYPEINDEX
      27             : #endif
      28             : #include <boost/unordered_map.hpp>
      29             : #include <rtl/string.hxx>
      30             : 
      31             : namespace helpdatafileproxy {
      32             : 
      33             :     namespace hdf_internal
      34             :     {
      35             :         class Noncopyable
      36             :         {
      37             :             // not implemented
      38             :             Noncopyable(const Noncopyable&);
      39             :             void operator=(const Noncopyable&);
      40             :         protected:
      41           0 :             Noncopyable() {}
      42           0 :             ~Noncopyable() {}
      43             :         };
      44             :     }
      45             : 
      46             :     class HDFData
      47             :     {
      48             :         friend class        Hdf;
      49             : 
      50             :         int                 m_nSize;
      51             :         char*               m_pBuffer;
      52             : 
      53             :         void copyToBuffer( const char* pSrcData, int nSize );
      54             : 
      55             :     public:
      56           0 :         HDFData( void )
      57             :             : m_nSize( 0 )
      58           0 :             , m_pBuffer( NULL )
      59           0 :         {}
      60           0 :         ~HDFData()
      61           0 :             { delete [] m_pBuffer; }
      62             : 
      63           0 :           int getSize() const
      64           0 :             { return m_nSize; }
      65           0 :           const char* getData() const
      66           0 :             { return m_pBuffer; }
      67             :     };
      68             : 
      69             :     struct eq
      70             :     {
      71           0 :         bool operator()( const OString& rKey1, const OString& rKey2 ) const
      72           0 :         { return (rKey1 == rKey2); }
      73             :     };
      74             : 
      75             :     struct ha
      76             :     {
      77           0 :         size_t operator()( const OString& rName ) const
      78           0 :             { return rName.hashCode(); }
      79             :     };
      80             : 
      81             :     typedef boost::unordered_map< OString,std::pair<int,int>,ha,eq >   StringToValPosMap;
      82             :     typedef boost::unordered_map< OString,OString,ha,eq >     StringToDataMap;
      83             : 
      84             :     class Hdf : hdf_internal::Noncopyable
      85             :     {
      86             :         OUString       m_aFileURL;
      87             :         StringToDataMap*    m_pStringToDataMap;
      88             :         StringToValPosMap*  m_pStringToValPosMap;
      89             :         com::sun::star::uno::Reference< com::sun::star::ucb::XSimpleFileAccess3 >
      90             :                             m_xSFA;
      91             : 
      92             :         com::sun::star::uno::Sequence< sal_Int8 >
      93             :                             m_aItData;
      94             :         const char*         m_pItData;
      95             :         int                 m_nItRead;
      96             :         int                 m_iItPos;
      97             : 
      98             :         bool implReadLenAndData( const char* pData, int& riPos, HDFData& rValue );
      99             : 
     100             :     public:
     101             :         //HDFHelp must get a fileURL which can then directly be used by simple file access.
     102             :         //SimpleFileAccess requires file URLs as arguments. Passing file path may work but fails
     103             :         //for example when using long file paths on Windows, which start with "\\?\"
     104           0 :         Hdf( const OUString& rFileURL,
     105             :             com::sun::star::uno::Reference< com::sun::star::ucb::XSimpleFileAccess3 > xSFA )
     106             :                 : m_aFileURL( rFileURL )
     107             :                 , m_pStringToDataMap( NULL )
     108             :                 , m_pStringToValPosMap( NULL )
     109             :                 , m_xSFA( xSFA )
     110             :                 , m_pItData( NULL )
     111             :                 , m_nItRead( -1 )
     112           0 :                 , m_iItPos( -1 )
     113             :         {
     114             :             OSL_ASSERT(rFileURL.startsWith("file:"));
     115           0 :         }
     116           0 :         ~Hdf()
     117           0 :             { releaseHashMap(); }
     118             : 
     119             :         void createHashMap( bool bOptimizeForPerformance = false );
     120             :         void releaseHashMap( void );
     121             : 
     122             :         bool getValueForKey( const OString& rKey, HDFData& rValue );
     123             : 
     124             :         bool startIteration( void );
     125             :         bool getNextKeyAndValue( HDFData& rKey, HDFData& rValue );
     126             :         void stopIteration( void );
     127             :     };
     128             : }
     129             : 
     130             : #endif
     131             : 
     132             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */