For some applications it is useful to determine the uncompressed size of a file that has been compressed by the gzip algorithm. From the command line this can be done by using the -l option of the gzip program. But this is less straightforward using the Java API's. The GZIPInputStream class does not provide a method to query the original file size. However the information is present in the GZIP file for files that were originally smaller than 4 Gb and can be extracted.
Delft University of Technology
Delft Bioinformatics Lab
Van Mourik Broekmanweg 6 (building 28)
2628 XE Delft
The Netherlands
http://bioinformatics.tudelft.nl/
Broad Institute of MIT and Harvard
Genome Sequencing and Analysis Program
7 Cambridge Center
Cambridge, MA, 02142
USA
http://www.broadinstitute.org