LibreOffice Module ucb (master)  1
hierarchyuri.cxx
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19 
20 
21 /**************************************************************************
22  TODO
23  **************************************************************************
24 
25  *************************************************************************/
26 
27 #include "hierarchyuri.hxx"
28 
29 using namespace hierarchy_ucp;
30 
31 #define HIERARCHY_URL_SCHEME "vnd.sun.star.hier"
32 #define HIERARCHY_URL_SCHEME_LENGTH 17
33 #define DEFAULT_DATA_SOURCE_SERVICE \
34  "com.sun.star.ucb.DefaultHierarchyDataSource"
35 
36 
37 // HierarchyUri Implementation.
38 
39 
40 void HierarchyUri::init() const
41 {
42  // Already inited?
43  if ( !m_aUri.isEmpty() && m_aPath.isEmpty() )
44  {
45  // Note: Maybe it's a re-init, setUri only resets m_aPath!
46  m_aService.clear();
47  m_aParentUri.clear();
48 
49  // URI must match at least: <scheme>:
50  if ( m_aUri.getLength() < HIERARCHY_URL_SCHEME_LENGTH + 1 )
51  {
52  // error, but remember that we did an init().
53  m_aPath = "/";
54  return;
55  }
56 
57  // Scheme is case insensitive.
58  OUString aScheme
59  = m_aUri.copy( 0, HIERARCHY_URL_SCHEME_LENGTH ).toAsciiLowerCase();
60  if ( aScheme == HIERARCHY_URL_SCHEME )
61  {
62  m_aUri = m_aUri.replaceAt( 0, aScheme.getLength(), aScheme );
63 
64  sal_Int32 nPos = 0;
65 
66  // If the URI has no service specifier, insert default service.
67  // This is for backward compatibility and for convenience.
68 
69  if ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 1 )
70  {
71  // root folder URI without path and service specifier.
74 
75  nPos = m_aUri.getLength() - 1;
76  }
77  else if ( ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 2 )
78  &&
79  ( m_aUri[ HIERARCHY_URL_SCHEME_LENGTH + 1 ] == '/' ) )
80  {
81  // root folder URI without service specifier.
84 
85  nPos = m_aUri.getLength() - 1;
86  }
87  else if ( ( m_aUri.getLength() > HIERARCHY_URL_SCHEME_LENGTH + 2 )
88  &&
89  ( m_aUri[ HIERARCHY_URL_SCHEME_LENGTH + 2 ] != '/' ) )
90  {
91  // other (no root folder) URI without service specifier.
92  m_aUri = m_aUri.replaceAt(
94  0,
97 
98  nPos
99  = HIERARCHY_URL_SCHEME_LENGTH + 3 + m_aService.getLength();
100  }
101  else
102  {
103  // URI with service specifier.
104  sal_Int32 nStart = HIERARCHY_URL_SCHEME_LENGTH + 3;
105 
106  // Here: - m_aUri has at least the form "<scheme>://"
107  // - nStart points to char after <scheme>:
108 
109  // Only <scheme>:// ?
110  if ( nStart == m_aUri.getLength() )
111  {
112  // error, but remember that we did an init().
113  m_aPath = "/";
114  return;
115  }
116 
117  // Empty path segments?
118  if ( m_aUri.indexOf("//", nStart) != -1 )
119  {
120  // error, but remember that we did an init().
121  m_aPath = "/";
122  return;
123  }
124 
125  sal_Int32 nEnd = m_aUri.indexOf( '/', nStart );
126 
127  // Only <scheme>:/// ?
128  if ( nEnd == nStart )
129  {
130  // error, but remember that we did an init().
131  m_aPath = "/";
132  return;
133  }
134 
135  if ( nEnd == -1 )
136  {
137  // Trailing slash missing.
138  nEnd = m_aUri.getLength();
139  m_aUri += "/";
140  }
141 
142  m_aService = m_aUri.copy( nStart, nEnd - nStart );
143 
144  nPos = nEnd;
145  }
146 
147  // Here: - m_aUri has at least the form "<scheme>://<service>/"
148  // - m_aService was set
149  // - m_aPath, m_aParentPath, m_aName not yet set
150  // - nPos points to slash after service specifier
151 
152  // Remove trailing slash, if not a root folder URI.
153  sal_Int32 nEnd = m_aUri.lastIndexOf( '/' );
154  if ( ( nEnd > nPos ) && ( nEnd == ( m_aUri.getLength() - 1 ) ) )
155  m_aUri = m_aUri.copy( 0, nEnd );
156 
157  // Path (includes leading slash)
158  m_aPath = m_aUri.copy( nPos );
159 
160  // parent URI + name
161  sal_Int32 nLastSlash = m_aUri.lastIndexOf( '/' );
162  if ( ( nLastSlash != -1 ) &&
163  ( nLastSlash != m_aUri.getLength() - 1 ) ) // root
164  {
165  m_aParentUri = m_aUri.copy( 0, nLastSlash );
166  }
167 
168  // success
169  m_bValid = true;
170  }
171  else
172  {
173  // error, but remember that we did an init().
174  m_aPath = "/";
175  }
176  }
177 }
178 
179 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
#define HIERARCHY_URL_SCHEME_LENGTH
#define HIERARCHY_URL_SCHEME
#define DEFAULT_DATA_SOURCE_SERVICE
sal_uInt16 nPos