Hmm. No, it doesn't. This is what I get with pprint by itself:
:headers {"pluginKey" #<ByteArrayLongString PLUGIN2>}
with your version I get:
:headers
#=(java.util.HashMap. {"pluginKey"
#=(com.rabbitmq.client.impl.LongStringHelper$ByteArrayLongString.
"PLUGIN2")})
what I think I needs to be able to read it back in is:
:headers {"pluginKey" "PLUGIN2"}
On Saturday, June 29, 2013 8:41:16 PM UTC-5, Baishampayan Ghose wrote:
>
> Does this work?
>
> ;; do the defmethod extension as usual and then define spit-messages as
> such
> (defn spit-messages
> "Write out the messages in the given seq."
> [messages dest]
> (binding [*print-dup* true]
> (pprint
> (for [[metadata ^bytes payload] messages]
> {:header metadata :payload (String. payload)})
> dest)))
>
> ~BG
>
> On Sun, Jun 30, 2013 at 7:05 AM, Dave Kincaid
> <[email protected]<javascript:>>
> wrote:
> > Thanks! If that works, it is perfect. However, my first attempt isn't
> making
> > any difference. Here is what I have:
> >
> > (defmethod print-dup
> > com.rabbitmq.client.impl.LongStringHelper$ByteArrayLongString [o w]
> > (print-ctor o (fn [o w] (print-dup (String. (.getBytes o)) w)) w))
> >
> > (defn spit-messages
> > "Write out the messages in the given seq."
> > [messages dest]
> > (print-dup
> > (for [[metadata ^bytes payload] messages]
> > {:header metadata :payload (String. payload)})
> > dest))
> >
> > but it still prints it out to the file with #<ByteArrayLongString
> PLUGIN2>.
> > Did I miss something?
> >
> > On Saturday, June 29, 2013 8:14:49 PM UTC-5, Baishampayan Ghose wrote:
> >>
> >> Adding a method to the `print-dup` multimethod that dispatches on
> >> ByteArrayLongString should help. See here for an example -
> >> http://clojuredocs.org/clojure_core/clojure.core/print-dup ~BG
> >>
> >> On Sun, Jun 30, 2013 at 5:47 AM, Dave Kincaid <[email protected]>
> wrote:
> >> > I'm using pprint to write out a map to a file then trying to read it
> >> > back in
> >> > using clojure.edn/read (I also get the same error using read). Here
> is
> >> > the
> >> > output (it's a map that was created by the Langohr rabbitmq library):
> >> >
> >> > {:header
> >> > {:timestamp #inst "2058-04-07T17:56:17.000-00:00",
> >> > :delivery-tag 2,
> >> > :expiration nil,
> >> > :correlation-id nil,
> >> > :delivery-mode 1,
> >> > :app-id nil,
> >> > :user-id nil,
> >> > :redelivery? true,
> >> > :header {:headers ()},
> >> > :content-type nil,
> >> > :persistent? false,
> >> > :reply-to nil,
> >> > :routing-key "pims_data_capture",
> >> > :headers {"pluginKey" #<ByteArrayLongString PLUGIN2>},
> >> > :type nil,
> >> > :message-id nil,
> >> > :cluster-id nil,
> >> > :message-count 3,
> >> > :exchange "",
> >> > :content-encoding nil,
> >> > :priority nil},
> >> > :payload
> >> > "{\"software\":\"CSTONE\",\"entity\":\"\","}
> >> >
> >> > when I try to read it in I get an UnreadableForm exception. I've
> >> > narrowed it
> >> > down to the #<ByteArrayLongString PLUGIN2> element. If I manually
> change
> >> > that to just a regular string I can read it. What is the idiomatic
> way
> >> > to
> >> > handle this noting that there could be a number of different values
> in
> >> > that
> >> > :headers map.
> >> >
> >> > --
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> >>
> >>
> >>
> >> --
> >> Baishampayan Ghose
> >> b.ghose at gmail.com
> >
> > --
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>
>
> --
> Baishampayan Ghose
> b.ghose at gmail.com
>
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