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21 
22 
23 #ifndef HELPDATAFILEPROXY_DB_HXX_
24 #define HELPDATAFILEPROXY_DB_HXX_
25 
26 #include "com/sun/star/ucb/XSimpleFileAccess.hpp"
27 
28 #include <hash_map>
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             Noncopyable() {}
42             ~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 		HDFData( void )
57 			: m_nSize( 0 )
58 			, m_pBuffer( NULL )
59 		{}
60 		~HDFData()
61 			{ delete [] m_pBuffer; }
62 
63   	    int getSize() const
64 			{ return m_nSize; }
65   	    const char* getData() const
66 			{ return m_pBuffer; }
67 	};
68 
69 	struct eq
70 	{
71 		bool operator()( const rtl::OString& rKey1, const rtl::OString& rKey2 ) const
72 			{ return rKey1.compareTo( rKey2 ) == 0; }
73 	};
74 
75 	struct ha
76 	{
77 		size_t operator()( const rtl::OString& rName ) const
78 			{ return rName.hashCode(); }
79 	};
80 
81 	typedef std::hash_map< rtl::OString,std::pair<int,int>,ha,eq >	StringToValPosMap;
82 	typedef std::hash_map< rtl::OString,rtl::OString,ha,eq >		StringToDataMap;
83 
84 	class Hdf : hdf_internal::Noncopyable
85 	{
86 		rtl::OUString		m_aFileURL;
87 		StringToDataMap*	m_pStringToDataMap;
88 		StringToValPosMap*	m_pStringToValPosMap;
89 		com::sun::star::uno::Reference< com::sun::star::ucb::XSimpleFileAccess >
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 		Hdf( const rtl::OUString& rFileURL,
105 			com::sun::star::uno::Reference< com::sun::star::ucb::XSimpleFileAccess > 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 				, m_iItPos( -1 )
113 		{
114             OSL_ASSERT(!rFileURL.compareTo(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("file:")), 5));
115         }
116 		~Hdf()
117 			{ releaseHashMap(); }
118 
119 		void createHashMap( bool bOptimizeForPerformance = false );
120 		void releaseHashMap( void );
121 
122 		bool getValueForKey( const rtl::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