[TIKA-2849] TikaInputStream copies the input stream locally

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.20
• Fix Version/s: 1.21
• Assignee: Tim Allison
• Reporter: Boris Petrov
• Created: 08/Apr/19 08:48
• Updated: 13/Apr/20 14:43
• Resolved: 19/Apr/19 20:24

Description

When doing "tika.detect(stream, name)" and the stream is a "TikaInputStream", execution gets to "TikaInputStream#getPath" which does a "Files.copy(in, path, REPLACE_EXISTING);" which is very, very bad. This input stream could be, as in our case, an input stream from a network file which is tens or hundreds of gigabytes large. Copying it locally is a huge waste of resources to say the least. Why does it do that and can I make it not do it? Or is this something that has to be fixed in Tika?

Issue Links

• is related to: TIKA-2853 Consider applying NaiveBayes or similar simple ML to streaming zip detector