arkadijs

package te;

import java.util.ArrayList;
import java.util.List;

public class Container<T> {
    public List<T> elems = new ArrayList<T>();

    public Container(T arg) {
        this.elems.add(arg);

arkadijs

class ArabicNumeralsTest extends GroovyTestCase {

    def converter = new RomanNumerals()

    void testOne() {
        assert 1 == converter.toArabic("I")
    }

    void testDigit() {
        assert 4 == converter.toArabic("IV")

arkadijs

import Test.Hspec
import Data.List

anagrams :: [String] -> String -> [String]
anagrams lwords checkword = filter (wordsAreAnagrams checkword) lwords

wordsAreAnagrams :: String -> String -> Bool
wordsAreAnagrams a b = (a /= b) && (sort a == sort b)

allAnagrams :: [String] -> [[String]]

arkadijs

      transactional {
        val delta = event.days // 7 days
        val q =
          """
            |construction_merchants [status = :active] {id}
            |-
            |                                          construction_merchants merchant
            |[merchant.prn_id = official_list.prn_id]  official_list
            |[official_list.child_id = member.prn_id]  construction_merchants member
            |[merchant.status = :active & member.status = :active & official_list.date_to = null & official_list.typ = :org]

arkadijs

Javascript with CouchDB hackathon

http://www.meetup.com/Latvian-Developers-Network/events/85092202/

Ubuntu Erlang goodies

$ cat /etc/apt/sources.list.d/erlang.list
deb http://binaries.erlang-solutions.com/debian precise contrib
$ sudo apt-get -y install esl-erlang

arkadijs

arkadijs

Immutant primer

Homework for LDN event [Workshop: Clojure][event].

Task

Follow [Immutant Tutorials][tutorials] and install [Leiningen][leiningen] and [Immutant][install].

1. Create [web handler][deploy] for /?counter=some-name
2. Create [queue][messaging] to enqueue some-name
3. Create [cache][caching]
4. Read from queue and increment cache(some-name)

arkadijs

import time

def cell_transition(alive, neighbour_count):
    return neighbour_count in (2, 3) if alive else neighbour_count == 3


class RectField(object):

    def __init__(self, size, cells):
        self.size = size 

arkadijs

The Origin

I'm here not to teach you - see me as a guiding friend, a facilitator. We'll go together through a journey of getting better at some particular, non-hype, well understood yet sometimes problematic, still modern technology for developing web- and service-oriented applications. Hopefully it will give you a new perspective on how such things could be built.

It's up to you to choose what it'll be for you - an epic or a walk in the park. Most of the value will be to stay till the end, though.

To do the homework I expect about 5 hours of commitment per week -- similar to [Coursera]. Some colleagues already demonstrated that it could be done. But, compared to consuming nicely prepared material, we're on raw side this time -- you'll be setting your own tactical learning plan and digging for materials instead.

Last but not least, my opinion and judgments are always subjective.

arkadijs

object Main {
  def main(args: Array[String]) {
    val date = new Deserializer().deserialize[java.util.Date]("2014-02-15")
    val ints = new Deserializer().deserialize2[Int]("[1, 2, 3]")
  }
}

class Deserializer {
  import scala.reflect.{ ClassTag, Manifest }