Access denied with clojure.java.io/copy

Using *clojure.java.io/copy *I get the following output: ___ Exception in thread "main" java.io.FileNotFoundException: .lein-git-deps\project\cljs-src (Access denied) (NO_SOURCE_FILE:0 The sources files are in *lein-git-deps\project\cljs-sr *and destination in a *s

Re: mutual reference in FP style

On 07/06/2012 09:54 PM, Mark Engelberg wrote: > You basically have two choices. > > Choice 1, give names to each of your nodes, and link names to names. > (def cycle {:a {:value 2, :link :b}, :b {:value 3, :link :a}} > > Choice 2, use one of Clojure's reference types > (def a (ref {:value 2})) >

Re: mutual reference in FP style

On 07/08/2012 01:37 PM, Timo Mihaljov wrote: > I think promises are a great fit for this use case, as the result is > immutable. I should have read the original question more closely. Promises are great for mutual references in static graphs, but updating parts of the graph will be easier with the

Using clojure-csv with large files

Hi there, I'm trying out the Clojure-csvlib. But I run out of heap space when trying to parse a large CSV file. So this call should return a lazy sequence. (csv/parse-csv (io/reader "*125Mfile.csv*")) Instead, I get a "*java.lang.OutOfMemoryError:

Re: critique my code!

Excerpts from Alex Robbins's message of 2012-07-06 05:27:28 -0700: > Reading through your code, many of your functions have large cond or > condp clauses. Sometimes those can be replaced with multimethods. Thanks, that's good to know. I think in this case the large condp switches are part and parc

Re: Using clojure-csv with large files

Hi, I would try something like (untested): (map parse-csv (line-seq (clojure.java.io/reader "/tmp/foo.csv"))) But it will break for CSV cells with newlines like: a ; b foo;"bar baz" x ; z interesting ... Denis On Sun, Jul 8, 2012 at 6:34 PM, Timothy Washington wrote: > Hi there, > >

Re: Using clojure-csv with large files

Yeah, CSV files can have embedded newlines, so you can't just split it up on linebreaks and expect it to work, you need to send them through a parser. parse-csv *is* lazy, so my question is, are you doing this at the repl, exactly as you wrote? If so, it will lazily parse the file, and then print

Can I examine the state of a Clojure lazy sequence?

(1) Is there any way I can extract from a Clojure lazy sequence at some given point in its use those of its members that have so far been realized? For example, can I extract the cache of realized members, turn it into a vector, and then process that vector independently of further use of the l

Re: Using clojure-csv with large files

On Sun, Jul 8, 2012 at 9:34 AM, Timothy Washington wrote: > I'm trying out the Clojure-csv lib. But I run out of heap space when trying > to parse a large CSV file. So this call should return a lazy sequence. > > (csv/parse-csv (io/reader "125Mfile.csv")) If you are consuming the CSV lazily, you

Re: POST not working with compojure 1.1.0 and ring-jetty-adapter 1.1.0

Worked like a charm, thank you James On Saturday, July 7, 2012 5:42:43 PM UTC-5, James Reeves wrote: > > On 7 July 2012 23:24, ArturoH wrote: > > I'm not sure that I am having a version problem but this very simple > example > > does not work for me. I get the POST form but when I subit the PO

Re: Using clojure-csv with large files

what are you doing with the return value of csv/parse-csv? -- 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 firs

[ANN] timing is a timing library for clojure

Hi, I just worked on timing clojure function calls. As you know, the built-in (time) macro is pretty good. But there's even better solutions in Java, called perf4j. perf4j logs call time with a configurable logger. And you can use log4j appenders to aggregate the data into some sorts of reports

Re: Using clojure-csv with large files

Hmm, these are all good points. My source file just returns the sequence (as in *src.clj*). I have a midje test file (*test.clj*) that just asserts that it exists. *src.clj * (ns my-ns ... ) (defn load-config [] (let [config (load-file "etc/config.clj") dname (-> config :data :test)]

Re: Can I examine the state of a Clojure lazy sequence?

Larry Travis writes: Hi Larry, > (1) Is there any way I can extract from a Clojure lazy sequence at > some given point in its use those of its members that have so far been > realized? For example, can I extract the cache of realized members, > turn it into a vector, and then process that vector