1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
|
/******************************************************************************
* $Id: ogrfmelayer.cpp 12123 2007-09-11 23:57:40Z warmerdam $
*
* Project: FMEObjects Translator
* Purpose: Implementation of the OGRFMELayer base class. The class
* implements behaviour shared between database and spatial cached
* layer types.
* Author: Frank Warmerdam, warmerdam@pobox.com
*
******************************************************************************
* Copyright (c) 1999, 2001 Safe Software Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include "fme2ogr.h"
#include "cpl_conv.h"
#include "cpl_string.h"
CPL_CVSID("$Id: ogrfmelayer.cpp 12123 2007-09-11 23:57:40Z warmerdam $");
/************************************************************************/
/* OGRFMELayer() */
/************************************************************************/
OGRFMELayer::OGRFMELayer( OGRFMEDataSource *poDSIn )
{
poDS = poDSIn;
poFeatureDefn = NULL;
poSpatialRef = NULL;
pszAttributeFilter = NULL;
poFMEFeature = NULL;
}
/************************************************************************/
/* ~OGRFMELayer() */
/************************************************************************/
OGRFMELayer::~OGRFMELayer()
{
if( m_nFeaturesRead > 0 && poFeatureDefn != NULL )
{
CPLDebug( "FME", "%d features read on layer '%s'.",
(int) m_nFeaturesRead,
poFeatureDefn->GetName() );
}
CPLFree( pszAttributeFilter );
if( poFMEFeature != NULL )
poDS->GetFMESession()->destroyFeature( poFMEFeature );
if( poFeatureDefn != NULL )
{
poFeatureDefn->Release();
}
if( poSpatialRef != NULL )
poSpatialRef->Release();
}
/************************************************************************/
/* Initialize() */
/* */
/* Build an OGRFeatureDefn for this layer from the passed */
/* schema IFMEFeature. */
/************************************************************************/
int OGRFMELayer::Initialize( IFMEFeature * poSchemaFeature,
OGRSpatialReference *poSRS )
{
IFMEString *poFMEString = NULL;
poFMEString = poDS->GetFMESession()->createString();
poFMEFeature = poDS->GetFMESession()->createFeature();
if( poSRS != NULL )
poSpatialRef = poSRS->Clone();
/* -------------------------------------------------------------------- */
/* Create the definition with the definition name being the */
/* same as the FME feature type. */
/* -------------------------------------------------------------------- */
poSchemaFeature->getFeatureType( *poFMEString );
poFeatureDefn = new OGRFeatureDefn( poFMEString->data() );
poFeatureDefn->Reference();
poDS->GetFMESession()->destroyString( poFMEString );
/* -------------------------------------------------------------------- */
/* Get the list of attribute names. */
/* -------------------------------------------------------------------- */
IFMEStringArray *poAttrNames;
poAttrNames = poDS->GetFMESession()->createStringArray();
poSchemaFeature->getAllAttributeNames( *poAttrNames );
/* ==================================================================== */
/* Loop over attributes, adding them to our feature defn. */
/* ==================================================================== */
OGRwkbGeometryType eGeomType = wkbNone;
IFMEString *poAttrValue;
poAttrValue = poDS->GetFMESession()->createString();
for( int iAttr = 0; iAttr < (int)poAttrNames->entries(); iAttr++ )
{
const char *pszAttrName = (*poAttrNames)(iAttr);
/* -------------------------------------------------------------------- */
/* Get the attribute value. */
/* -------------------------------------------------------------------- */
if( !poSchemaFeature->getAttribute(pszAttrName,*poAttrValue) )
continue;
/* -------------------------------------------------------------------- */
/* Handle geometry attributes. Use them to try and establish */
/* the geometry type of this layer. If we get conflicting */
/* geometries just fall back to the generic geometry type. */
/* -------------------------------------------------------------------- */
if( EQUALN(pszAttrName,"fme_geometry",12) )
{
OGRwkbGeometryType eAttrGeomType = wkbNone;
if( EQUAL(poAttrValue->data(),"fme_point") )
eAttrGeomType = wkbPoint;
else if( EQUAL(poAttrValue->data(),"fme_text") )
eAttrGeomType = wkbPoint;
else if( EQUAL(poAttrValue->data(),"fme_area") )
eAttrGeomType = wkbPolygon;
else if( EQUAL(poAttrValue->data(),"fme_polygon") )
eAttrGeomType = wkbPolygon;
else if( EQUAL(poAttrValue->data(),"fme_rectangle") )
eAttrGeomType = wkbPolygon;
else if( EQUAL(poAttrValue->data(),"fme_rounded_rectangle") )
eAttrGeomType = wkbPolygon;
else if( EQUAL(poAttrValue->data(),"fme_line") )
eAttrGeomType = wkbLineString;
else if( EQUAL(poAttrValue->data(),"fme_arc") )
eAttrGeomType = wkbLineString;
else if( EQUAL(poAttrValue->data(),"fme_aggregate") )
eAttrGeomType = wkbGeometryCollection;
else if( EQUAL(poAttrValue->data(),"fme_no_geom") )
eAttrGeomType = wkbNone;
else
{
CPLDebug( "FME_OLEDB",
"geometry field %s has unknown value %s, ignored.",
pszAttrName,
poAttrValue->data() );
continue;
}
if( eGeomType == wkbNone )
eGeomType = eAttrGeomType;
else if( eGeomType != eAttrGeomType )
eGeomType = wkbUnknown;
}
/* -------------------------------------------------------------------- */
/* Skip '*' attributes which appear to be the raw attribute */
/* names from the source reader. The versions that don't start */
/* with * appear to be massaged suitably for use, with fme */
/* standard data types. */
/* -------------------------------------------------------------------- */
if( EQUALN(pszAttrName,"fme_geometry",12)
|| pszAttrName[0] == '*'
|| EQUALN(pszAttrName,"fme_geomattr",12) )
{
continue;
}
/* -------------------------------------------------------------------- */
/* Parse the type into tokens for easier use. */
/* -------------------------------------------------------------------- */
char **papszTokens;
papszTokens = CSLTokenizeStringComplex( poAttrValue->data(),
"(,", FALSE, FALSE );
/* -------------------------------------------------------------------- */
/* Establish new fields. */
/* -------------------------------------------------------------------- */
OGRFieldType eType;
int nWidth, nPrecision = 0;
if( CSLCount(papszTokens) == 2 && EQUAL(papszTokens[0],"fme_char") )
{
eType = OFTString;
nWidth = atoi(papszTokens[1]);
}
else if( CSLCount(papszTokens) == 3
&& EQUAL(papszTokens[0],"fme_decimal") )
{
nWidth = atoi(papszTokens[1]);
nPrecision = atoi(papszTokens[2]);
if( nPrecision == 0 )
eType = OFTInteger;
else
eType = OFTReal;
}
else if( CSLCount(papszTokens) == 1
&& EQUAL(papszTokens[0],"fme_int16") )
{
nWidth = 6;
nPrecision = 0;
eType = OFTInteger;
}
else if( CSLCount(papszTokens) == 1
&& EQUAL(papszTokens[0],"fme_int32") )
{
nWidth = 0;
nPrecision = 0;
eType = OFTInteger;
}
else if( CSLCount(papszTokens) == 1
&& (EQUAL(papszTokens[0],"fme_real32")
|| EQUAL(papszTokens[0],"fme_real64")) )
{
nWidth = 0;
nPrecision = 0;
eType = OFTReal;
}
else if( CSLCount(papszTokens) == 1
&& EQUAL(papszTokens[0],"fme_boolean") )
{
nWidth = 1;
nPrecision = 0;
eType = OFTInteger;
}
else
{
printf( "Not able to translate field type: %s\n",
poAttrValue->data() );
CSLDestroy( papszTokens );
continue;
}
/* -------------------------------------------------------------------- */
/* Add the field to the feature definition. */
/* -------------------------------------------------------------------- */
OGRFieldDefn oFieldDefn( pszAttrName, eType );
oFieldDefn.SetWidth( nWidth );
oFieldDefn.SetPrecision( nPrecision );
poFeatureDefn->AddFieldDefn( &oFieldDefn );
CSLDestroy( papszTokens );
}
/* -------------------------------------------------------------------- */
/* Assign the geometry type ... try to apply 3D-ness as well. */
/* -------------------------------------------------------------------- */
if( poSchemaFeature->getDimension() == FME_THREE_D )
eGeomType = (OGRwkbGeometryType) (((int)eGeomType) | wkb25DBit);
poFeatureDefn->SetGeomType( eGeomType );
/* -------------------------------------------------------------------- */
/* Translate the spatial reference system. */
/* -------------------------------------------------------------------- */
if( poSchemaFeature->getCoordSys() != NULL
&& strlen(poSchemaFeature->getCoordSys()) > 0
&& poSpatialRef == NULL )
{
CPLDebug( "FME_OLEDB", "Layer %s has COORDSYS=%s on schema feature.",
poFeatureDefn->GetName(),
poSchemaFeature->getCoordSys() );
poSpatialRef = poDS->FME2OGRSpatialRef(poSchemaFeature->getCoordSys());
}
/* -------------------------------------------------------------------- */
/* Cleanup */
/* -------------------------------------------------------------------- */
poDS->GetFMESession()->destroyString( poAttrValue );
poDS->GetFMESession()->destroyStringArray( poAttrNames );
return TRUE;
}
/************************************************************************/
/* SetAttributeFilter() */
/************************************************************************/
OGRErr OGRFMELayer::SetAttributeFilter( const char *pszNewFilter )
{
OGRErr eErr;
CPLFree( pszAttributeFilter );
pszAttributeFilter = NULL;
/* -------------------------------------------------------------------- */
/* Allow clearing of attribute query. */
/* -------------------------------------------------------------------- */
if( pszNewFilter == NULL || strlen(pszNewFilter) == 0 )
{
if( m_poAttrQuery != NULL )
{
delete m_poAttrQuery;
m_poAttrQuery = NULL;
}
return OGRERR_NONE;
}
/* -------------------------------------------------------------------- */
/* Compile new query. Note that we currently will only accept */
/* queries we recognise as valid. It would be better to pass */
/* directly through to Oracle or other databases where we will */
/* use the setConstraints method and let them decide on the */
/* validity of the query. However, it will be difficult to */
/* return the error at this point if we defer setting the */
/* constraint. */
/* -------------------------------------------------------------------- */
if( !m_poAttrQuery )
m_poAttrQuery = new OGRFeatureQuery();
eErr = m_poAttrQuery->Compile( GetLayerDefn(), pszNewFilter );
if( eErr != OGRERR_NONE )
{
delete m_poAttrQuery;
m_poAttrQuery = NULL;
}
else
{
pszAttributeFilter = CPLStrdup( pszNewFilter );
}
ResetReading();
return eErr;
}
/************************************************************************/
/* GetSpatialRef() */
/************************************************************************/
OGRSpatialReference *OGRFMELayer::GetSpatialRef()
{
return poSpatialRef;
}
|
