I just want to learn clojure by using it to parse log file and
generate reports. and one question is: for a large text file, can we
use it as a sequence effectively? for example, for a 100M log file, we
need to check each line for some pattern match.
I just using the (line-seq rdr) but it will cause
OutOfMemoryException.
demo code
(defn buffered-reader [file]
(new java.io.BufferedReader
(new java.io.InputStreamReader
(new java.io.FileInputStream file))))
(def -reader (buffered-reader "test.txt"))
(filter #(= "some" %) -reader)
even there is no lines match "some", the filter operation will cause
OutOfMemoryException.
Is there other APIs like the Sequence but provide stream-like API?
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