mallipeddi

"""

Discovered http://gulopine.gamemusic.org/2008/jan/10/simple-plugin-framework/ which describes a simple technique for supporting plugins in your Python app.

Few lessons learned:

    * __new__() returns an instance of a class which is then sent to __init__() as the first arg.
    * Class variables are shared across all classes (original class and its subclasses). This is why "plugins" can be shared between B and C below. For more info on this topic read Martin Fowler's article on ClassInstanceVariables - http://martinfowler.com/bliki/ClassInstanceVariable.html (Ruby and Python seem to exhibit the same behavior in this case).
    
"""

mallipeddi

;; Tumblore - Tumblr blog backup tool
;; 
;; Harish Mallipeddi
;; Dec 1 2009

(ns in.poundbang.tumblore
    (:use [clojure.http.client :only [request]]
            [clojure.contrib.duck-streams :only [spit]])
    (:import (java.io ByteArrayInputStream)))

mallipeddi

"""
Simple python program demonstrating how certain blocking syscalls can be offloaded to a thread-pool and 
then be able to fetch the results from these system calls in a non-blocking way by doing select() on 
a pipe between the main thread and the threads in the pool. 

This is the technique being used by node.js to offer a unified non-blocking Javascript API even for 
things like file I/O which is traditionally done via blocking syscalls. This idea was described by 
Ryan Dahl at JSConfEU 2009.

-- Harish Mallipeddi - Dec 3 2009

mallipeddi

Setting up Eclipse for Hadoop Dev

* Create a new Java project from existing source (point to the top-level folder which has src/ folder inside).

* Turn off build-automatically from “Projects” menu.
 
* Right-click build.xml, choose "Run as > Ant build..."; Choose “compile, eclipse-files” targets.
 
* Build once.

mallipeddi

"""
Emulating Ruby-style code blocks in Python.

This example was demonstrated in the PyCon'10 talk titled "Python Metaprogramming".
"""

import sys
import types

def receive_block(func):

mallipeddi

public class Parser {
    public static <T> Map<String, T> getMapFromKeyValuePairs(String str, Convertor<T> convertor) {
        Map<String, T> map = new HashMap<String, T>();
        String[] symbols = str.split(",");

        if (symbols.length > 0) {
            for (String symbol : symbols) {
                String[] tuple = symbol.split(":");
                if (tuple.length == 2) {
                    try {

mallipeddi

#!/bin/sh
LOCAL=$1
REMOTE=$2
BASE=$3
araxiscompare -nowait -2 "$LOCAL" "$REMOTE"

mallipeddi

INSTRUCTIONS FOR GETTING MEMPROF WORKING ON SNOW LEOPARD

We'll compile and install a different version of ruby and ruby-gems alongside the default versions that ship with Snow Leopard.

Compile and install ruby

    Get ruby-1.8.7-p299.tar.gz (or the latest version) & untar it somewhere

    ./configure --prefix=/path/to/ruby/directory/you/want \
                --with-readline-dir=/opt/local \

mallipeddi

class Foo
  def foo
    puts "fofo"
  end
end

# Module#instance_method
# => returns an UnboundMethod object
unbound_foo = Foo.instance_method(:foo)
p unbound_foo # => #<UnboundMethod: Foo#foo>

mallipeddi

lib/action_controller/dispatcher.rb
	dispatch method
		calls handle_request
                     calls Routing::Routes#recognize(request) to figure out the correct 'controller'
                     once the controller has been identified, calls controller.process
		if an exception gets thrown, do failsafe_rescue(exception)
	failsafe_rescue 
		calls ApplicationController or ActionController::Base's process_with_exception (for Base, it's defined in rescue.rb)

lib/action_controller/rescue.rb