New Functional Programming Job Opportunities

Here are some functional programming job opportunities that were posted recently: Senior Clojure Software Engineer at DRW Trading Group http://functionaljobs.com/jobs/8653-senior-clojure-software-engineer-at-drw-trading-group Cheers, Sean Murphy FunctionalJobs.com -- -- You received t

Re: Clojars "Could not transfer artifact... ReasonPhrase: Forbidden"

What was the problem? On Monday, August 5, 2013 11:43:11 PM UTC+3, frye wrote: > > Ok, got this sorted out. Thanks to xeqi @ #leiningen @ irc.freenode.org. > > > Tim Washington > Interruptsoftware.ca / Bkeeping.com > > > > On Mon, Aug 5, 2013 at 11:24 AM, Timothy Washington > > > wrote: > >>

Re: [ANN] Jig

Ok, some more feedback for Jig. *A)* Testing - Let's say I have a multi-project jig, with dependencies across projects. There doesn't seem to be a way to run tests (midje :autotest) for a specific project. I tried creating a Midje component (see https://www.refheap.com/20442). But when I *i)* put

Re: tomcat 6/7 stream closed error in ring json - works in lein ring server

It would. I'm not sure why one fails and the other does not, unless the request object passed through Tomcat is different somehow, or unless you accidentally sent two different HTTP requests when testing. Regardless, the error message you've received is pretty clear - the JSON stream is consumed b

Re: tomcat 6/7 stream closed error in ring json - works in lein ring server

Hi James, Not sure why I did that double wrapping.. However, wouldn't that also fail in Jetty? On 4 November 2013 01:02, James Reeves wrote: > Hi Colin, > > One of the compromises Ring makes for efficiency is that the body of a > request is an InputStream, rather than a static string or byte

Re: tomcat 6/7 stream closed error in ring json - works in lein ring server

Hi Colin, One of the compromises Ring makes for efficiency is that the body of a request is an InputStream, rather than a static string or byte array pre-loaded into memory. Because it's a stream, it can potentially be consumed by previous middleware. For some reason you have both wrap-json-body

Re: tomcat 6/7 stream closed error in ring json - works in lein ring server

Apologies - I just realised a Compojure group existed. I have posted in there (https://groups.google.com/forum/#!topic/compojure/_jut36dXmCM) as well. On Monday, 4 November 2013 00:20:29 UTC, Colin Yates wrote: > > Hi all, > > I have developed a ring/compojure app which receives and servers JSO

tomcat 6/7 stream closed error in ring json - works in lein ring server

Hi all, I have developed a ring/compojure app which receives and servers JSON. All is well in 'lein ring server' but as soon as I do 'lein ring uberwar' and deploy it to tomcat 6 or 7 it fails. To be explicit, the app deploys and I can view the static resources, but as soon as I issue a JSON

Re: Why is this count example not working: (count % '(1 2 3))

On 3 Nov 2013, at 21:39, Angus wrote: > (count % '(1 2 3)) > > I am getting error: clojure.lang.ArityException: Wrong number of args (2) > passed to: core$count http://clojuredocs.org/clojure_core/clojure.core/count Count only takes one argument, a collection, and returns the number of items

Re: Why is this count example not working: (count % '(1 2 3))

% is used as the implicit arg in the #() (syntactic sugar) anonymous function form. Maybe you want (count '(1 2 3)). --- Joseph Smith j...@uwcreations.com @solussd > On Nov 3, 2013, at 3:39 PM, Angus wrote: > > (count % '(1 2 3)) > > I am getting error: clojure.lang.ArityException: Wrong

Why is this count example not working: (count % '(1 2 3))

(count % '(1 2 3)) I am getting error: clojure.lang.ArityException: Wrong number of args (2) passed to: core$count -- -- 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

Re: Potential improvement to select-keys ?

On Nov 2, 2013, at 9:27 AM, Mark Engelberg wrote: > I seem to be a relatively lone voice thinking it makes sense to preserve the > type of the map, and honestly, I'm not going to lose any sleep if this patch > is never actually implemented, but here's my two cents on the "optimal" > design fo

Re: Functions using locks are slowed even when locks are never taken

Well, that is interesting. The difference between the compiled versions of (defn foo [x] (if (> x 0) (inc x) (locking o (dec x and (defn bar [x] (if (> x 0) (inc x) (let [res (locking o (dec x))] res))) is quite significant. foo gets compiled

Re: Functions using locks are slowed even when locks are never taken

I mean, I'm probably being naive, but this suggests that one could write (defmacro locking' [& forms] `(let [res# (locking ~@forms)] res#)) and use locking' in place of locking for improved performance. Is this wrong? If it's right, does that suggest the macro in clojure.core should be changed?

Re: Scala interop (or, aliasing imported Java classes)

That would need quoting wouldn't it? (import '(the.java.package {Clazz1 Alias1 Clazz2 Alias2} Clazz3)) or: (import '(the.java.package Clazz1 Clazz2 Clazz3 :rename {Clazz1 Alias1 Clazz2 Alias2})) On Sun, Nov 3, 2013 at 11:22 AM, Sean Corfield wrote: > Perhaps a small extension to (impor

Re: Scala interop (or, aliasing imported Java classes)

Perhaps a small extension to (import ..) is warranted then, since the underlying machinery seems to support aliases? (import [the.java.package {Clazz1 Alias1 Clazz2 Alias2} Clazz3]) or, maybe more in keeping with require: (import [the.java.package Clazz1 Clazz2 Clazz3 :rename {Clazz1 Ali

Re: Functions using locks are slowed even when locks are never taken

Huh, interesting. I have: (defn foo' [x] (if (> x 0) (inc x) (let [res (locking o (dec x))] res))) (defn foo'' [x] (if (> x 0) (inc x) (locking o (dec x foo' is fast, but foo'' is slow. So something about wrapping the locking clause in a let makes it fast. Still n

Re: Functions using locks are slowed even when locks are never taken

Good detective work, Michal. So the extra time for the slower version was because a Var was always being accessed in the generated byte code, even if the source code was only explicitly accessing the Var in a branch that was never executed? Thanks, Andy On Sun, Nov 3, 2013 at 9:30 AM, Michał Ma

Re: Functions using locks are slowed even when locks are never taken

I should perhaps make clear that with direct use of monitor-enter and monitor-exit with a Var it's possible for monitor-enter and monitor-exit to operate on different objects even in the absence of typos, namely if somebody rebinds the Var. To illustrate this with print at the REPL (a regular Cloju

Re: Functions using locks are slowed even when locks are never taken

You have a typo in foo -- monitor-exit's argument is 0 (zero) rather than o (the sentinel object). Besides that, in foo both monitor-enter and monitor-exit get their arguments from a Var. Rewriting to use locking, which first puts the object whose monitor will be used in a local (that is, (let [lo

Re: What's the -dup in print-dup?

John Mastro writes: > This isn't a very deep question, but I wonder every time I come across > it: to what does "-dup" in `print-dup` and `*print-dup*` refer? I don’t have any special knowledge in this regard, but I’ve always thought of it as “duplicate,” which makes some sense when you think of

Re: Scala interop (or, aliasing imported Java classes)

Mark writes: > I think my preferred solution would be to allow imported Java classes > to be aliased, so I could do this: > >> (import '(org.fooinstitute.team.library.foo package :as foop)) > => org.fooinstitute.team.library.foo.package >> (foop/isFoo "foop") > => false > > But to the best of my

Re: assoc / dissoc consistency, maps and vectors

You also assume keys are comparable or that 'conj order' is retained, which is often not true. Consider following map: (your-dissoc {2 1, :a 1, "foo" 1, 'bar 1} 2) => Vectors are indexed and maps are associative. These two concepts share some functionalities (assoc, get), but are otherwise v

Re: Functions using locks are slowed even when locks are never taken

same results on my machine as well. I tried decompiling the jar (with cider-decompile), and the parts that actually run (the "then" clause) seems almost identical. If you'r interested, i can post them later tonight. On Sunday, November 3, 2013 2:32:42 AM UTC+2, Michael Blume wrote: > > Hmm, it

[ANN] Imagez 0.2.0

Hi All, I made some updates to my lightweight Clojure bitmap image processing library. - https://github.com/mikera/imagez Builds available from clojars here: - https://clojars.org/net.mikera/imagez Main interesting addition is the addition of a

Re: [ANN] Documentation generator - Receipt & Receipt Plugin

Here's the source on Github https://github.com/runexec/receipt-clj  03.11.2013, 17:08, "Kelker Ryan" :Receipt & Receipt PluginStandalone and plugin Clojure documentation generator.Standalone [receipt "1.0.1"]Lein Plugin [receipt-plugin "1.0.1"]Usage & DocumentationThe documentation for receipt was

[ANN] Documentation generator - Receipt & Receipt Plugin

Receipt & Receipt PluginStandalone and plugin Clojure documentation generator.Standalone [receipt "1.0.1"]Lein Plugin [receipt-plugin "1.0.1"]Usage & DocumentationThe documentation for receipt was generated with receipt and can be viewed here$ lein receipt-plugin Writing doc/receipt.core.html Writi