Brad, As Kevin points out, because the values in the property file go through read-string, they're read as Clojure literals, symbols in this case. One solution is to make the string values look like string literals to the reader:
host="foo.com" port=2525 user="me" pass="pwd" Try that and never believe anything you read on StackOverflow :) Dave On Sun, Mar 4, 2012 at 10:23 AM, Brad Lucas <b...@beaconhill.com> wrote: > I'm using Postal (https://github.com/drewr/postal) and found something > I don't know how to fix. > > I have my application working fine if I have a var with my smtp > properties created as follows: > > (def smtp-original {:host "foo.com" > :port 2525 > :user "me" > :pass "pwd" > }) > > Since I want to release my project for others I thought to modify it > to read the smtp values from a Properties file. I used the routine > from Dave Ray's answer on StackOverFlow (http://stackoverflow.com/a/ > 7781443/406220). > > ;; Load smtp information out of a file from > http://stackoverflow.com/a/7781443/406220 > (defn load-props > [file-name] > (with-open [^java.io.Reader reader (clojure.java.io/reader file- > name)] > (let [props (java.util.Properties.)] > (.load props reader) > (into {} (for [[k v] props] [(keyword k) (read-string v)]))))) > > This works well in that it returns a Map that looks just like the smtp- > original when reading the following file. > > host=foo.com > port=2525 > user=me > pass=pwd > > > The trouble is when I run my app and it calls into Postal I get a > java.lang.ClassCastException. > > I notice that the smtp-original created with a def is a > clojure.lang.PersistentHashMap while the return from load-props is a > clojure.lang.PersistentArrayMap. > > I looked into Postal but don't see why this matters. > > So, I guess I have a few questions. > > Can I convert the PersistentArrayMap to a PersistentHashMap? Is this > the right way to go? > Is load-props doing something unusual? It seems fine. > Does anyone understand the internals of Postal? Why would it not work > with the PersistentArrayMap? > > Any ideas or pointers would be greatly appreciated. I'm looking to > understand what is going on. > > Thanks > > -- > 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 > Note that posts from new members are moderated - please be patient with your > first post. > 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 -- 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 Note that posts from new members are moderated - please be patient with your first post. 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
