I found there are 2 ways to get time in millisecond
def m1 = System.currentTimeMillis() println m1 def m2 = new Date() println m2.getTime()
Now a days I am working with Groovy/Grails. This is really awesome language. Installing this in Ubuntu is very easy and this can be done very fast and in easy way. So how I installed Groovy/Grails up and running.
First install openjdk and groovy. Since in ubuntu these 2 packages are already available. So install it via apt-get.
sudo apt-get install openjdk-6-jdk sudo apt-get install groovy java -version java version "1.6.0_18" OpenJDK Runtime Environment (IcedTea6 1.8) (6b18-1.8-0ubuntu1) OpenJDK Client VM (build 14.0-b16, mixed mode, sharing) groovyConsole
Now for installing Grails. We need to install via binary zip file.
Get the latest Binary Zip file and save to some of your location.
Unzip the folder and move to /usr/share/grails/
I just moved grails to /usr/share/ because ubuntu install Groovy at /usr/share/groovy so making the similarity.
Now Set the JAVA_HOME and GRAILS_HOME path for your profile. Since we are installing Grails via zip binary so we need to tell the system that where is Grails and where is JAVA.
Open ~/.profiles file and add these lines at the top.
JAVA_HOME=/usr/lib/jvm/java-6-openjdk GRAILS_HOME=/usr/share/grails PATH=$PATH:/usr/share/grails/bin export JAVA_HOME PATH export GRAILS_HOME PATH
And logout and login again and do
printenv
This will show you that Grails path is set for our profile.
Now just say
ganu@ganu:/usr/share/grails$ grails Welcome to Grails 1.3.6 - http://grails.org/ Licensed under Apache Standard License 2.0 Grails home is set to: /usr/share/grails
Use ‘grails help’ for more info or ‘grails interactive’ to enter interactive mode
DONE !! WOW.
How to check where Groovy-Grails combination is working.
Go to your development Grails folder.
ganu@ganu:~/grails$ grails create-app wpdemo Welcome to Grails 1.3.6 - http://grails.org/ Licensed under Apache Standard License 2.0 Grails home is set to: /usr/share/grails Base Directory: /home/ganu/grails Resolving dependencies... Dependencies resolved in 2867ms. Running script /usr/share/grails/scripts/CreateApp_.groovy Environment set to development ........... Executing tomcat-1.3.6 plugin post-install script ... Plugin tomcat-1.3.6 installed Plugin provides the following new scripts: ------------------------------------------ grails tomcat Created Grails Application at /home/ganu/grails/wpdemo ganu@ganu:~/grails$ cd wpdemo/ ganu@ganu:~/grails/wpdemo$ ll total 28 -rw-r--r-- 1 ganu ganu 178 2011-02-13 03:43 application.properties drwxr-xr-x 10 ganu ganu 4096 2010-12-15 08:22 grails-app drwxr-xr-x 2 ganu ganu 4096 2011-02-13 03:43 lib drwxr-xr-x 2 ganu ganu 4096 2011-02-13 03:43 scripts drwxr-xr-x 4 ganu ganu 4096 2011-02-13 03:43 src drwxr-xr-x 4 ganu ganu 4096 2011-02-13 03:43 test drwxr-xr-x 7 ganu ganu 4096 2010-12-15 08:22 web-app ganu@ganu:~/grails/wpdemo$ grails run-app Welcome to Grails 1.3.6 - http://grails.org/ Licensed under Apache Standard License 2.0 Grails home is set to: /usr/share/grails Base Directory: /home/ganu/grails/wpdemo Resolving dependencies... Dependencies resolved in 2986ms. Running script /usr/share/grails/scripts/RunApp.groovy Environment set to development ........... Running Grails application.. Server running. Browse to http://localhost:8080/wpdemo
Groovy/Grails SEtup
Happy Programming.
How to use findAll() in groovy, when you have to find some specific string from string.
def name= 'this# is to%% te$st ^in*d~~ all $$from CCa s<>>ng, this is basi?><:"{}cally fetch only interested thing.'
def name1 = ''
def findName = name.findAll(/[A-Za-z\s+]/).each{name1 += "${it}"}
println findName
println name1
We can also use
def findName = name.findAll(/[A-Za-z\s+]/)
def name1 = findName.join('')
This code will fetch only sting and space and give output in name1.
Output -
run-single: [t, h, i, s, , , , i, s, , t, o, , t, e, s, t, , i, n, d, , a, l, l, , f, r, o, m, , C, C, a, , s, t, i, n, g, , t, h, i, s, , i, s, , b, a, s, i, c, a, l, l, y, , f, e, t, c, h, , o, n, l, y, , i, n, t, e, r, e, s, t, e, d, , t, h, i, n, g] this is to test ind all from CCa sting this is basically fetch only interested thing BUILD SUCCESSFUL (total time: 1 second)
Program has many ways to do.
Happy Programming.
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