Hi Duane, we integrated GDAL 2.2.3 successfully with geotools 19, using the following steps:
* downloaded precompiled binaries (https://trac.osgeo.org/gdal/wiki/DownloadingGdalBinaries) * put the java bindings, that correspond with the precompiled binaries on the class path (gdal.jar) * delete the old version gdal java binding jar imageio-ext-gdal-bindings-X.jar, that was shipped with imageio * put the precompiled binaries in one of the standard gdal driver paths or set environment variable (https://trac.osgeo.org/gdal/wiki/ConfigOptions#GDAL_DRIVER_PATH) * check, if declaration of gdal_data is needed on your operating system (https://trac.osgeo.org/gdal/wiki/ConfigOptions#GDAL_DATA) Then you should see something like this: Jan 10, 2019 3:44:04 PM it.geosolutions.imageio.gdalframework.GDALUtilities loadGDAL INFORMATION: GDAL Native Library loaded (version: 2.2.3) Hendrik Von: Duane Zamrok <zam...@cubrc.org> Gesendet: Donnerstag, 10. Januar 2019 15:30 An: 'GeoTools-GT2-Users@lists.sourceforge.net' <GeoTools-GT2-Users@lists.sourceforge.net> Betreff: [Geotools-gt2-users] gt-imageio-ext-gdal I'm attempting to use the following dependency to read a file in the DTED format. <dependency> <groupId>org.geotools</groupId> <artifactId>gt-imageio-ext-gdal</artifactId> <version>20.1</version> </dependency> >From what I can tell, gt-imageio-ext-gdal is dependant on >imageio-ext-gdalframework-1.1.27 which seems to require that I have the JNI >bindings installed for GDAL 1.9.2. Looking at the imageio-ext project, version 1.1.27 was released October of 2018 and does in fact include 1.9.2 native libraries in its release. However, all of the precompiled binaries are for older OS versions. Redhat 6 is the newest OS represented and I can't seem to find precompiled binaries anywhere for RHEL7 or newer versions of Ubuntu. I notice that GDAL is well past 1.9.2 and is already deploying version 2.2+ as part of apt-get/yum, but using newer versions of the bindings does not appear to work since I get this stack trace if I try. Jan 10, 2019 9:29:12 AM it.geosolutions.imageio.gdalframework.GDALUtilities loadGDAL INFO: Failed to load the GDAL native libs from "gdalalljni". Falling back to "gdaljni". java.lang.UnsatisfiedLinkError: no gdalalljni in java.library.path Jan 10, 2019 9:29:12 AM it.geosolutions.imageio.gdalframework.GDALUtilities loadGDAL WARNING: Failed to load the GDAL native libs. This is not a problem unless you need to use the GDAL plugins: they won't be enabled. java.lang.UnsatisfiedLinkError: no gdaljni in java.library.path Exception in thread "main" java.lang.IllegalStateException: GDAL native libraries are not available. at it.geosolutions.imageio.gdalframework.GDALImageReader.setInput(GDALImageReader.java:636) at javax.imageio.ImageReader.setInput(ImageReader.java:380) at org.geotools.coverageio.BaseGridCoverage2DReader.<init>(BaseGridCoverage2DReader.java:164) at org.geotools.coverageio.gdal.BaseGDALGridCoverage2DReader.<init>(BaseGDALGridCoverage2DReader.java:77) at org.geotools.coverageio.gdal.dted.DTEDReader.<init>(DTEDReader.java:56) at org.geotools.coverageio.gdal.dted.DTEDReader.<init>(DTEDReader.java:45) at org.cubrc.example.geotools.egm96.Egm96QueryTest.main(Egm96QueryTest.java:17) Is there some other way of acquiring the bindings at this point, so people have stopped deploying against newer OS or should is the normal process to compile the bindings yourself? ________________________________ IBYKUS AG f?r Informationstechnologie, Erfurt / HRB 108616 - D-Jena / Vorstand: Helmut C. Henkel, Eckehart Klingner Vorsitzender des Aufsichtsrates: Dr. Helmut Vorndran
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