Using a java nio ByteBuffer to simulate what you're doing, the following works ok for me;
(defmulti t-str class) (defmethod t-str String [s] (java.nio.ByteBuffer/wrap (.getBytes s "us-ascii"))) (t-str "abcde") #<HeapByteBuffer java.nio.HeapByteBuffer[pos=0 lim=5 cap=5]> (defmethod t-str String [s] (java.nio.ByteBuffer/wrap (.getBytes s "utf-8"))) (t-str "abcde") #<HeapByteBuffer java.nio.HeapByteBuffer[pos=0 lim=5 cap=5]> Maybe there's something about the particular [ s ] object that you're passing in? Rgds, Adrian. On Tue, May 12, 2009 at 8:45 PM, tsuraan <tsur...@gmail.com> wrote: > > I'm trying to encode a java string into utf-8 for encapsulation within > an OtpErlangBinary > (http://erlang.org/doc/apps/jinterface/java/com/ericsson/otp/erlang/OtpErlangBinary.html). > When I try to construct an OtpErlangBinary from the results of > String.getBytes(encoding), I get bad data. A string (pure ascii) with > 20 characters becomes a 47-byte OtpErlangBinary, and none of the bytes > in that binary seem to correspond to the bytes of the string. The > simple function that I have looks like this: > > (defmethod to-otp String [ s ] > (new OtpErlangBinary (.getBytes s "utf-8"))) > > And the OtpErlangBinary gets 47 bytes of data for a 20 byte string. > However, if I change that code to read: > > (defmethod to-otp String [ s ] > (new OtpErlangBinary (.getBytes (str s) "utf-8"))) > > (notice the (str s)), the code works. It seems really strange to me > that this should happen, but I don't know clojure well enough to > determine what's going on under the hood. Is there some way to dump > the java code equivalent of those two functions, so I can compare > them? I've tried making a minimal test case for converting strings > into OtpErlangBinaries, but I can't get this bug to manifest in any > circumstances other than this one program. > > Any tips for debugging would be much appreciated. I'm running clojure > 1.0.0, with java 1.6.0, and erlang jinterface 1.4. > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
