By the way, there is also the print-method multimethod which might
just do the trick for you. Just try this one with your original
version of `spit-messages` -
http://clojuredocs.org/clojure_core/clojure.core/print-method ~BG
On Sun, Jun 30, 2013 at 7:18 AM, Dave Kincaid <kincaid.d...@gmail.com> wrote:
> 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$ByteArrayLongString.
> "PLUGIN2")})
>
> what I think I needs to be able to read it back in is:
>
> :headers {"pluginKey" "PLUGIN2"}
>
> On Saturday, June 29, 2013 8:41:16 PM UTC-5, Baishampayan Ghose wrote:
>>
>> Does this work?
>>
>> ;; do the defmethod extension as usual and then define spit-messages as
>> such
>> (defn spit-messages
>> "Write out the messages in the given seq."
>> [messages dest]
>> (binding [*print-dup* true]
>> (pprint
>> (for [[metadata ^bytes payload] messages]
>> {:header metadata :payload (String. payload)})
>> dest)))
>>
>> ~BG
>>
>> On Sun, Jun 30, 2013 at 7:05 AM, Dave Kincaid <kincai...@gmail.com> wrote:
>> > Thanks! If that works, it is perfect. However, my first attempt isn't
>> > making
>> > any difference. Here is what I have:
>> >
>> > (defmethod print-dup
>> > com.rabbitmq.client.impl.LongStringHelper$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 <kincai...@gmail.com>
>> >> 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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