[mapserver-commits] r9640 - trunk/mapserver
svn at osgeo.org
svn at osgeo.org
Sat Dec 26 12:42:25 EST 2009
Author: warmerdam
Date: 2009-12-26 12:42:24 -0500 (Sat, 26 Dec 2009)
New Revision: 9640
Modified:
trunk/mapserver/HISTORY.TXT
trunk/mapserver/mapogr.cpp
Log:
implemented RFC52 LayerResultsGetShape for OGR - record is now results offset not fid
Modified: trunk/mapserver/HISTORY.TXT
===================================================================
--- trunk/mapserver/HISTORY.TXT 2009-12-26 15:46:55 UTC (rev 9639)
+++ trunk/mapserver/HISTORY.TXT 2009-12-26 17:42:24 UTC (rev 9640)
@@ -14,6 +14,8 @@
Current Version (SVN trunk):
----------------------------
+- Implemented RFC 52 LayerResultsGetShape support for OGR connection type.
+
- Fixed uninitialized variable with malloc used in osPointCluster() (#3236)
- Oracle driver: remove BLOB columns instead of changing them to null (#3228)
Modified: trunk/mapserver/mapogr.cpp
===================================================================
--- trunk/mapserver/mapogr.cpp 2009-12-26 15:46:55 UTC (rev 9639)
+++ trunk/mapserver/mapogr.cpp 2009-12-26 17:42:24 UTC (rev 9640)
@@ -75,6 +75,8 @@
struct ms_ogr_file_info_t *poCurTile; /* exists on tile index, -> tiles */
rectObj rect; /* set by WhichShapes */
+ int last_record_index_read;
+
} msOGRFileInfo;
static int msOGRLayerIsOpen(layerObj *layer);
@@ -1485,6 +1487,7 @@
psInfo->poCurTile = NULL;
psInfo->rect.minx = psInfo->rect.maxx = 0;
psInfo->rect.miny = psInfo->rect.maxy = 0;
+ psInfo->last_record_index_read = -1;
return psInfo;
}
@@ -1629,6 +1632,7 @@
* Reset current feature pointer
* ------------------------------------------------------------------ */
OGR_L_ResetReading( psInfo->hLayer );
+ psInfo->last_record_index_read = -1;
RELEASE_OGR_LOCK;
@@ -1741,6 +1745,7 @@
if( (hFeature = OGR_L_GetNextFeature( psInfo->hLayer )) == NULL )
{
+ psInfo->last_record_index_read = -1;
if( CPLGetLastErrorType() == CE_Failure )
{
msSetError(MS_OGRERR, "%s", "msOGRFileNextShape()",
@@ -1757,6 +1762,8 @@
}
}
+ psInfo->last_record_index_read++;
+
if(layer->numitems > 0)
{
shape->values = msOGRGetValues(layer, hFeature);
@@ -1804,7 +1811,7 @@
shape->type = MS_SHAPE_NULL;
}
- shape->index = OGR_F_GetFID( hFeature );
+ shape->index = psInfo->last_record_index_read;
shape->tileindex = psInfo->nTileId;
if (layer->debug >= MS_DEBUGLEVEL_VVV)
@@ -1830,7 +1837,7 @@
**********************************************************************/
static int
msOGRFileGetShape(layerObj *layer, shapeObj *shape, long record,
- msOGRFileInfo *psInfo )
+ msOGRFileInfo *psInfo, int record_is_fid )
{
OGRFeatureH hFeature;
@@ -1841,19 +1848,59 @@
return(MS_FAILURE);
}
-/* ------------------------------------------------------------------
- * Handle shape geometry...
- * ------------------------------------------------------------------ */
+/* -------------------------------------------------------------------- */
+/* Clear previously loaded shape. */
+/* -------------------------------------------------------------------- */
msFreeShape(shape);
shape->type = MS_SHAPE_NULL;
- ACQUIRE_OGR_LOCK;
- if( (hFeature = OGR_L_GetFeature( psInfo->hLayer, record )) == NULL )
+/* -------------------------------------------------------------------- */
+/* Support reading feature by fid. */
+/* -------------------------------------------------------------------- */
+ if( record_is_fid )
{
- RELEASE_OGR_LOCK;
- return MS_FAILURE;
+ ACQUIRE_OGR_LOCK;
+ if( (hFeature = OGR_L_GetFeature( psInfo->hLayer, record )) == NULL )
+ {
+ RELEASE_OGR_LOCK;
+ return MS_FAILURE;
+ }
}
+/* -------------------------------------------------------------------- */
+/* Support reading shape by offset within the current */
+/* resultset. */
+/* -------------------------------------------------------------------- */
+ else if( !record_is_fid )
+ {
+ ACQUIRE_OGR_LOCK;
+ if( record <= psInfo->last_record_index_read
+ || psInfo->last_record_index_read == -1 )
+ {
+ OGR_L_ResetReading( psInfo->hLayer );
+ psInfo->last_record_index_read = -1;
+ }
+
+ hFeature = NULL;
+ while( psInfo->last_record_index_read < record )
+ {
+ if( hFeature != NULL )
+ {
+ OGR_F_Destroy( hFeature );
+ hFeature = NULL;
+ }
+ if( (hFeature = OGR_L_GetNextFeature( psInfo->hLayer )) == NULL )
+ {
+ RELEASE_OGR_LOCK;
+ return MS_FAILURE;
+ }
+ psInfo->last_record_index_read++;
+ }
+ }
+
+/* ------------------------------------------------------------------
+ * Handle shape geometry...
+ * ------------------------------------------------------------------ */
// shape->type will be set if geom is compatible with layer type
if (ogrConvertGeometry(OGR_F_GetGeometryRef( hFeature ), shape,
layer->type) != MS_SUCCESS)
@@ -1886,7 +1933,7 @@
}
- shape->index = OGR_F_GetFID( hFeature );
+ shape->index = record;
shape->tileindex = psInfo->nTileId;
// Keep ref. to last feature read in case we need style info.
@@ -2509,12 +2556,12 @@
/**********************************************************************
* msOGRLayerGetShape()
*
- * Returns shape from OGR data source by id.
+ * Returns shape from OGR data source by fid.
*
* Returns MS_SUCCESS/MS_FAILURE
**********************************************************************/
int msOGRLayerGetShape(layerObj *layer, shapeObj *shape, int tile,
- long record)
+ long fid)
{
#ifdef USE_OGR
msOGRFileInfo *psInfo =(msOGRFileInfo*)layer->layerinfo;
@@ -2527,7 +2574,7 @@
}
if( layer->tileindex == NULL )
- return msOGRFileGetShape(layer, shape, record, psInfo );
+ return msOGRFileGetShape(layer, shape, fid, psInfo, TRUE );
else
{
if( psInfo->poCurTile == NULL
@@ -2537,7 +2584,7 @@
return MS_FAILURE;
}
- return msOGRFileGetShape(layer, shape, record, psInfo->poCurTile );
+ return msOGRFileGetShape(layer, shape, fid, psInfo->poCurTile, TRUE );
}
#else
/* ------------------------------------------------------------------
@@ -2552,6 +2599,52 @@
}
/**********************************************************************
+ * msOGRLayerResultGetShape()
+ *
+ * Returns shape from OGR data source by index into the current results
+ * set.
+ *
+ * Returns MS_SUCCESS/MS_FAILURE
+ **********************************************************************/
+int msOGRLayerResultGetShape(layerObj *layer, shapeObj *shape, int tile,
+ long record)
+{
+#ifdef USE_OGR
+ msOGRFileInfo *psInfo =(msOGRFileInfo*)layer->layerinfo;
+
+ if (psInfo == NULL || psInfo->hLayer == NULL)
+ {
+ msSetError(MS_MISCERR, "Assertion failed: OGR layer not opened!!!",
+ "msOGRLayerNextShape()");
+ return(MS_FAILURE);
+ }
+
+ if( layer->tileindex == NULL )
+ return msOGRFileGetShape(layer, shape, record, psInfo, FALSE );
+ else
+ {
+ if( psInfo->poCurTile == NULL
+ || psInfo->poCurTile->nTileId != tile )
+ {
+ if( msOGRFileReadTile( layer, psInfo, tile ) != MS_SUCCESS )
+ return MS_FAILURE;
+ }
+
+ return msOGRFileGetShape(layer, shape, record, psInfo->poCurTile, FALSE );
+ }
+#else
+/* ------------------------------------------------------------------
+ * OGR Support not included...
+ * ------------------------------------------------------------------ */
+
+ msSetError(MS_MISCERR, "OGR support is not available.",
+ "msOGRLayerGetShape()");
+ return(MS_FAILURE);
+
+#endif /* USE_OGR */
+}
+
+/**********************************************************************
* msOGRLayerGetExtent()
*
* Returns the layer extents.
@@ -3400,7 +3493,7 @@
layer->vtable->LayerIsOpen = msOGRLayerIsOpen;
layer->vtable->LayerWhichShapes = msOGRLayerWhichShapes;
layer->vtable->LayerNextShape = msOGRLayerNextShape;
- layer->vtable->LayerResultsGetShape = msOGRLayerGetShape; /* no special version, use ...GetShape() */
+ layer->vtable->LayerResultsGetShape = msOGRLayerResultGetShape;
layer->vtable->LayerGetShape = msOGRLayerGetShape;
layer->vtable->LayerClose = msOGRLayerClose;
layer->vtable->LayerGetItems = msOGRLayerGetItems;
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