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Simple Groovy project using Gradle

admin — Wed, 16 Nov 2011 02:40:23 +0000

Hello fellow Groovyists

I have been kicking the tires on using Gradle for my Groovy projects. I had a few stumbles along the way and wanted to share what I came up with for getting a very simple example working.

build.gradle
apply plugin: 'groovy' version = "1.0-${new Date().format('yyyyMMdd')}"


manifest.mainAttributes("Main-Class" : "com.javazquez.HelloThere")
repositories {

    mavenCentral()

	mavenRepo urls: "http://groovypp.artifactoryonline.com/groovypp/libs-releases-local"

}

dependencies {

	groovy group: 'org.codehaus.groovy', name: 'groovy-all', version: '1.8.4'

	groovy group: 'org.mongodb', name: 'mongo-java-driver', version: '2.6.5'

	groovy group: 'com.gmongo', name: 'gmongo', version: '0.9.1'

	testCompile "org.spockframework:spock-core:0.5-groovy-1.8"

}

jar { from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } } }

below is the the HelloThere.groovy file located src/main/groovy/com/javazquez/HelloThere
package com.javazquez public class HelloThere {


    public static void main(String []args) {

        println "Hello coders!"
    }

}

after running gradle build, I can navigate to the build/libs directory and run java -jar HelloThere-1.0-20111115.jar and get the following ouptut

Hello coders!

Gradle is a fantastic tool and I hope this article helps show the ease of getting a project set up.

Login with Basic Authentication using Groovy

admin — Tue, 02 Nov 2010 02:21:50 +0000

Hey there fellow Groovyists! I was recently in need of performing Basic Authentication on Apache using Groovy for a proof of concept. Below is what I was able to quickly put together.

//Here is a quick groovy 1.7.4 Basic Auth Example
@Grab(group=’org.codehaus.groovy.modules.http-builder’, module=’http-builder’, version=’0.5.0′ )

def authSite = new groovyx.net.http.HTTPBuilder( ‘http://10.110.201.115/~juanvazquez/basicAuth/’ )
authSite.auth.basic ‘user’, ‘pwd’
println authSite.get( path:’testAuth.html’ )

Fun with Python

admin — Wed, 01 Sep 2010 03:28:29 +0000

Hey there fellow developers
I have been working with Python lately(specifically Python3) and wanted to share some things I thought were pretty cool from an outsider’s(learning the language) perspective. I hope the following helps with getting to know this great language.. Enjoy


#construct a tuple using()
t=(1,2,3)

#contruct a list using []
 lst= [1,2,4]

#iterate a string and print each character
for i in "This is a String":
	print(i)

#getting the length of a string
print ("length is",len("12345"))	

#test x is in a range
x=6
if(3< x <10 ):
	print( "I am true")
else:
	print( "I am false")

#test membership

if "2" in "1234":
	print("I am in the string")
if int("2") in [1,2,3,4]:
	print( "I am in the list")

#replication
print( "hithreetimes, "*3)

#using math class
import math
print(math.sqrt(4))

#print all methods
print(dir(math))

#named Tuples
import collections
Movie = collections.namedtuple("Movie","title rating")
collection =[Movie("Jaws", 4.0)]
collection.append(Movie("Toy Story", 5.0))
for movie in collection:
	print("I watched {0} and gave it {1} stars".format(movie.title,movie.rating))

#sequence unpacking
head, *rest = [1,2,3,4,5]
print("head is {0} and rest is {1}".format(head,rest))

#passing and unpacking parameters
def fullname(f,m,l):
	print("First Name ="+f)
	print("Middle Name ="+m)
        print("Last Name  ="l)

fakenamelist =["Homer","J","Simpson"]
fullname(*fakenamelist)		

#list comprehensions (print all odd numbers from 0 to 99)
print( [item for item in range(0,100) if item % 2])

#named parameters
def count_animals(number,*,	animal="ducks"):
	return "{0} {1}".format(number,animal)
print( count_animals(3,animal="cows"))
print( count_animals(3))

print(sorted([-1,2,-3],key=abs)) #same order

line = input("enter something.. ")
print("your line was " ,line)

I have been using python for web requests and recommend using the httplib2 library. It has a lot of really nice features.

Ruby to Python Primer

admin — Tue, 16 Dec 2008 16:44:15 +0000

If your like me, you bounce around between languages a lot. Lately, I have been writing python code. It’s not Ruby , but it can get the job done. Here is a quick list of similarities between the two languages. I hope it helps… don’t forget to this list in the comments section
#-----find object methods----- s="hello, I am a string"


#ruby

puts s.methods 
#python

print dir(s)
#find out more about a method using python

help(s.split)
#-----view object's class-----

#ruby

s.class 
#python

s.__class__
#------Iterate hashes-------
#ruby

h.each{|key,value| puts "#{key}, #{value}"} 
#python

for key,value in h.iteritems():

  print key, value
#---ternary operators
#ruby

condition ? var = x : var = y
#python.. not exactly an operator, but you get the meaning

#---- var = y  if condition is false

var = x if condition else y     
#----lengths------

#ruby

s="hello, I am a string"

puts "Length of string is #{s.length} or #{s.size}" 
h={:one=>2,:three=>4}

puts "Length of hash is same as string, #{h.length} or #{h.size} "
#python

print("This is the length of a string %s" % len("string"))

print("number of key/value pair= %d" % len({'one':1,'two':2}))
#---slicing lists/arrays

l=[1,2,3,4,5]
#ruby

l[1..3] #=>[2,3]
#python

l[1:3] #=>[2,3]
#--print string multiple times-----
#ruby

4.times{print "hello"} #=> hellohellohellohello
#python

print("hello" * 4) #=> hellohellohellohello