Will available() on CipherInputStream give full size of stream always?

Question

I have a CipherInputStream created from an InputStream and Cipher passed to its constructor.

I want to know the size of that stream, is there any way of doing the same? will available() give me the result what I expect?

I know answers like read the stream to determine same and such inefficient ones easily available on internet, but I want an efficient way of doing the same.

I already asked one question here for the same issue but there I did not mention exact class of the stream. also I tried searching on the internet but could not find any proper answer.

Short answer no. The very definition of a stream is that it is a collection of indeterminate length. — Boris the Spider, Mar 20 '14 at 15:26
No. You **must** consume an entire stream to determine its length. — Boris the Spider, Mar 20 '14 at 15:27

score 0 · Answer 1 · answered Mar 20 '14 at 15:26

0

No, available cannot tell you the full size of the stream because it depends on the underlying stream.

answered Mar 20 '14 at 15:26

Axel

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Will available() on CipherInputStream give full size of stream always?

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