Hi,
In geotools 14.<latest> (built from the 14.x branch) Im'm seeing the following
exception when using PGRaster:
Exception in thread "Thread-35" java.lang.ClassCastException:
java.awt.image.Raster cannot be cast to java.awt.image.WritableRaster
at
org.geotools.gce.imagemosaic.jdbc.AbstractThread.rescaleImageViaPlanarImage(AbstractThread.java:108)
at
org.geotools.gce.imagemosaic.jdbc.ImageComposerThread.run(ImageComposerThread.java:170)
I don't know if it still happens in later versions, but I don't think the
relevant code has changed much. The attached patch makes the problem go away,
but as I don't fully understand the problem I'm not sure if it's the right fix.
Frank
--
Frank Gevaerts [email protected]
fks bvba - Formal and Knowledge Systems http://www.fks.be/
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>From cf98c68fc770e3379e0f7e2d6a06878b4bca8fee Mon Sep 17 00:00:00 2001
From: Frank Gevaerts <[email protected]>
Date: Mon, 4 Jul 2016 14:08:48 +0200
Subject: [PATCH] Ensure that we get a WritableRaster from the rescaler.
RenderedOp.getData() doesn't always return a WritableRaster, so call
copyData() instead. This may waste some memory, but that's better than
a ClassCastException.
---
.../src/main/java/org/geotools/gce/imagemosaic/jdbc/AbstractThread.java | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/modules/plugin/imagemosaic-jdbc/src/main/java/org/geotools/gce/imagemosaic/jdbc/AbstractThread.java b/modules/plugin/imagemosaic-jdbc/src/main/java/org/geotools/gce/imagemosaic/jdbc/AbstractThread.java
index 6f1e7ad..66aae77 100644
--- a/modules/plugin/imagemosaic-jdbc/src/main/java/org/geotools/gce/imagemosaic/jdbc/AbstractThread.java
+++ b/modules/plugin/imagemosaic-jdbc/src/main/java/org/geotools/gce/imagemosaic/jdbc/AbstractThread.java
@@ -105,7 +105,7 @@ abstract class AbstractThread extends Thread {
0.0f,
Interpolation.getInstance(interpolation));
RenderedOp result = w.getRenderedOperation();
- WritableRaster scaledImageRaster = (WritableRaster) result.getData();
+ WritableRaster scaledImageRaster = result.copyData();
ColorModel colorModel = image.getColorModel();
--
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