Hi, I have created a patch for MySQLDataStore . File attached for review . Since I do not have commit rights , i would request some from the PMC to commit it to the trunk. Now the MysqlDataStore looks for two tables geometry_columns and spatial_ref_sys to create the CRS, if not found then it behaves as it used to before . If CRS is present then StreamingRender no longer throws the exception as in the mail below.
@Andrea - The other thing that needs to be fixed is that if no CRS is mentioned then the StreamingRender should not throw an Exception rather log a warning and continue. I am uploading the patch in jira too. Regards Debasish On 3/31/07, Debasish Sahu <[EMAIL PROTECTED]> wrote:
Hi,
MySQLDataStore currently does not supports CRS , cause of which when one
tries to render mysql geometries using StreamingRendererer (2.4-M1)
the following exception is thrown
Mar 31, 2007 4:29:14 PM
org.geotools.renderer.lite.StreamingRendererprocessSymbolizers
WARNING: null
java.lang.NullPointerException
at
org.geotools.referencing.operation.BufferedCoordinateOperationFactory$CRSPair
.<init>(BufferedCoordinateOperationFactory.java:83)
at
org.geotools.referencing.operation.BufferedCoordinateOperationFactory.createOperation
(BufferedCoordinateOperationFactory.java:245)
at org.geotools.renderer.lite.StreamingRenderer.getMathTransform(
StreamingRenderer.java :2413)
at org.geotools.renderer.lite.StreamingRenderer.processSymbolizers(
StreamingRenderer.java:1845)
at org.geotools.renderer.lite.StreamingRenderer.process(
StreamingRenderer.java:1759)
at org.geotools.renderer.lite.StreamingRenderer.processStylers (
StreamingRenderer.java:1704)
at org.geotools.renderer.lite.StreamingRenderer.paint(
StreamingRenderer.java:724)
at org.geotools.renderer.lite.StreamingRenderer.paint(
StreamingRenderer.java:446)
A possible fix is to modify the buildAttributeType to take in account the
CRS of the table or geometry .Example modification of Mulitpolygon
return AttributeTypeFactory.newAttributeType(rs
.getString(COLUMN_NAME), MultiPolygon.class);
to
return AttributeTypeFactory.newAttributeType(
rs.getString(COLUMN_NAME),Geometry.class, false, 0, null,
DefaultGeographicCRS.WGS84);
--
Thanks and Warm Regards
Debasish Sahu
-- Thanks and Warm Regards Debasish Sahu
MySQLDataStore.java
Description: Binary data
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