[Geotools-gt2-users] GeoTiffReader and FileInputStream

[Bruce I. <Br...@ac...>]

I want to bring back an old topic, because I did not see that it was
finally solved in a way I can use. I want to be able to load in a geotiff
file from a server (an AWS s3 bucket in particular). I am up for any
method, but I tried to simply pass GeoTiffReader an input stream rather
than a file. I am using Geotools 16 (built up with Maven with Eclipse).
When I create the reader with the following lines:



FileInputStream geotiffFile = new
FileInputStream("location_of_tiff\\tiffFile.tif");

GridCoverage2DReader tiffReader = new GeoTiffReader(geotiffFile);



the class is generated no problem. I can read in the coordinate system, the
size, the number of bands, everything...except the actual data. The
following read line:



rasterData =
tiffReader.read(null);



causes the following (partial) stack.



Caused by: javax.imageio.IIOException: I/O error reading header!

                at
it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.readHeader(TIFFImageReader.java:458)

                at
it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.locateImage(TIFFImageReader.java:465)

                at
it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.seekToImage(TIFFImageReader.java:589)

                at
it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.getImageTypes(TIFFImageReader.java:1104)

                at
javax.imageio.ImageReader.getRawImageType(ImageReader.java:681)

                at
com.sun.media.jai.imageioimpl.ImageReadOpImage.layoutHelper(ImageReadOpImage.java:228)

                at
com.sun.media.jai.imageioimpl.ImageReadOpImage.<init>(ImageReadOpImage.java:473)

                at
com.sun.media.jai.imageioimpl.ImageReadCRIF.create(ImageReadCRIF.java:309)

                ... 15 more

Caused by: java.io.EOFException

                at
javax.imageio.stream.ImageInputStreamImpl.readShort(ImageInputStreamImpl.java:229)

                at
javax.imageio.stream.ImageInputStreamImpl.readUnsignedShort(ImageInputStreamImpl.java:242)

                at
it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReader.readHeader(TIFFImageReader.java:404)

                ... 22 more



I have set this up to access a local file on my machine, but I get the
exact same errors if I access the file on an s3 bucket. If, instead of the
FileInputStream, I pass in a File, it works fine with no problems. I feel I
am so close, but my noob status means I have no idea how to fix this!!!



----------------------





Bruce J. Ikelheimer, Ph.D.

Acoustic Analytics

89 Saint Dunstan’s Rd. | Asheville, NC 28803

(703) 403-9842

www.AcousticAnalytics.com