ucb/source/ucp/hierarchy/hierarchyuri.cxx

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  31                                 TODO
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  35
  36 #include "rtl/ustrbuf.hxx"
  37 #include "osl/diagnose.h"
  38
  39 #include "hierarchyuri.hxx"
  40
  41 using namespace hierarchy_ucp;
  42
  43 //=========================================================================
  44
  45 #define DEFAULT_DATA_SOURCE_SERVICE \
  46                     "com.sun.star.ucb.DefaultHierarchyDataSource"
  47
  48 //=========================================================================
  49 //=========================================================================
  50 //
  51 // HierarchyUri Implementation.
  52 //
  53 //=========================================================================
  54 //=========================================================================
  55
  56 void HierarchyUri::init() const
  57 {
  58     // Already inited?
  59     if ( !m_aUri.isEmpty() && m_aPath.isEmpty() )
  60     {
  61         // Note: Maybe it's a re-init, setUri only resets m_aPath!
  62         m_aService = m_aParentUri = m_aName = rtl::OUString();
  63
  64         // URI must match at least: <sheme>:
  65         if ( ( m_aUri.getLength() < HIERARCHY_URL_SCHEME_LENGTH + 1 ) )
  66         {
  67             // error, but remember that we did a init().
  68             m_aPath = rtl::OUString("/");
  69             return;
  70         }
  71
  72         // Scheme is case insensitive.
  73         rtl::OUString aScheme
  74             = m_aUri.copy( 0, HIERARCHY_URL_SCHEME_LENGTH ).toAsciiLowerCase();
  75         if ( aScheme == HIERARCHY_URL_SCHEME )
  76         {
  77             m_aUri = m_aUri.replaceAt( 0, aScheme.getLength(), aScheme );
  78
  79             sal_Int32 nPos = 0;
  80
  81             // If the URI has no service specifier, insert default service.
  82             // This is for backward compatibility and for convenience.
  83
  84             if ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 1 )
  85             {
  86                 // root folder URI without path and service specifier.
  87                 m_aUri += rtl::OUString( "//" DEFAULT_DATA_SOURCE_SERVICE "/"  );
  88                 m_aService = rtl::OUString( DEFAULT_DATA_SOURCE_SERVICE  );
  89
  90                 nPos = m_aUri.getLength() - 1;
  91             }
  92             else if ( ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 2 )
  93                       &&
  94                       ( m_aUri.getStr()[ HIERARCHY_URL_SCHEME_LENGTH + 1 ]
  95                                                     == sal_Unicode( '/' ) ) )
  96             {
  97                 // root folder URI without service specifier.
  98                 m_aUri += rtl::OUString( "/" DEFAULT_DATA_SOURCE_SERVICE "/"  );
  99                 m_aService = rtl::OUString( DEFAULT_DATA_SOURCE_SERVICE  );
 100
 101                 nPos = m_aUri.getLength() - 1;
 102             }
 103             else if ( ( m_aUri.getLength() > HIERARCHY_URL_SCHEME_LENGTH + 2 )
 104                       &&
 105                       ( m_aUri.getStr()[ HIERARCHY_URL_SCHEME_LENGTH + 2 ]
 106                                                     != sal_Unicode( '/' ) ) )
 107             {
 108                 // other (no root folder) URI without service specifier.
 109                 m_aUri = m_aUri.replaceAt(
 110                             HIERARCHY_URL_SCHEME_LENGTH + 2,
 111                             0,
 112                             rtl::OUString( "/" DEFAULT_DATA_SOURCE_SERVICE "/"  ) );
 113                 m_aService = rtl::OUString( DEFAULT_DATA_SOURCE_SERVICE  );
 114
 115                 nPos
 116                     = HIERARCHY_URL_SCHEME_LENGTH + 3 + m_aService.getLength();
 117             }
 118             else
 119             {
 120                 // URI with service specifier.
 121                 sal_Int32 nStart = HIERARCHY_URL_SCHEME_LENGTH + 3;
 122
 123                 // Here: - m_aUri has at least the form "<scheme>://"
 124                 //       - nStart points to char after <scheme>://
 125
 126                 // Only <scheme>:// ?
 127                 if ( nStart == m_aUri.getLength() )
 128                 {
 129                     // error, but remember that we did a init().
 130                     m_aPath = rtl::OUString("/");
 131                     return;
 132                 }
 133
 134                 // Empty path segments?
 135                 if ( m_aUri.indexOf(
 136                         rtl::OUString("//"),
 137                         nStart ) != -1 )
 138                 {
 139                     // error, but remember that we did a init().
 140                     m_aPath = rtl::OUString("/");
 141                     return;
 142                 }
 143
 144                 sal_Int32 nEnd = m_aUri.indexOf( '/', nStart );
 145
 146                 // Only <scheme>:/// ?
 147                 if ( nEnd == nStart )
 148                 {
 149                     // error, but remember that we did a init().
 150                     m_aPath = rtl::OUString("/");
 151                     return;
 152                 }
 153
 154                 if ( nEnd == -1 )
 155                 {
 156                     // Trailing slash missing.
 157                     nEnd = m_aUri.getLength();
 158                     m_aUri += rtl::OUString("/");
 159                 }
 160
 161                 m_aService = m_aUri.copy( nStart, nEnd - nStart );
 162
 163                 nPos = nEnd;
 164             }
 165
 166             // Here: - m_aUri has at least the form "<scheme>://<service>/"
 167             //       - m_aService was set
 168             //       - m_aPath, m_aParentPath, m_aName not yet set
 169             //       - nPos points to slash after service specifier
 170
 171             // Remove trailing slash, if not a root folder URI.
 172             sal_Int32 nEnd = m_aUri.lastIndexOf( '/' );
 173             if ( ( nEnd > nPos ) && ( nEnd == ( m_aUri.getLength() - 1 ) ) )
 174                 m_aUri = m_aUri.copy( 0, nEnd );
 175
 176             // Path (includes leading slash)
 177             m_aPath = m_aUri.copy( nPos );
 178
 179             // parent URI + name
 180             sal_Int32 nLastSlash = m_aUri.lastIndexOf( '/' );
 181             if ( ( nLastSlash != -1 ) &&
 182                  ( nLastSlash != m_aUri.getLength() - 1 ) ) // root
 183             {
 184                 m_aParentUri = m_aUri.copy( 0, nLastSlash );
 185                 m_aName      = m_aUri.copy( nLastSlash + 1 );
 186             }
 187
 188             // success
 189             m_bValid = true;
 190         }
 191         else
 192         {
 193             // error, but remember that we did a init().
 194             m_aPath = rtl::OUString("/");
 195         }
 196     }
 197 }
 198
 199 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */