ThinkTibits!

Grails Custom JavaScript Function Usage Example Tutorial

2011-07-04T22:28:00.000-07:00

While creating a menu for a Grails application today, I encountered a scenario which could be useful for beginners in Grails to learn and understand. I had to use JQuery and a custom function which will get invoked on click of a hyperlink. First, I designed a static HTML (without using Grails), and my Javascript code looked as shown below;<script language='JavaScript' type='text/javascript' src='

Error Scaffolding View Resolver - Grails

2011-06-26T21:00:00.000-07:00

Today, while building a sample Grails application using the scaffolding approach, I encountered a new type of error, when running my Grails application. I had four domain classes and created a controller for each one of them. After the modelling of domain classes were complete, I added the following line of code inside my controller file to follow the scaffolding approach. def scaffold = true

Connect Grails with Oracle 11g Example Configuration

2011-06-22T18:19:00.000-07:00

I developed a tiny web application in Grails that used HSQLDB by default and was wondering if it is possible to change the database to my Oracle 11g database. That would be neat and I can build more on Grails and at the same time use some of the powerful features offered by Oracle. It is very easy and straightforward to set up Grails to work with Oracle. However, you may encounter some exceptions

NetBeans Create JUnit Test Suite Example Guide

2011-06-19T21:28:00.000-07:00

You may be here because you are new to Netbeans and would like to know how to run Junit test cases in Netbeans as a test Suite. Often, it would be nice to group your JUnit test cases into a test Suite so that they can all be executed in one go, instead of triggering them one after another. To do this, you will have to create a Suite that points to the test cases (class files) that needs to be

JUnit Parameterized Test Example Tutorial

2011-06-19T19:55:00.000-07:00

In this blog post, we will provide a simple example that will explain how to create a Parameterized test in JUnit with code examples. We will take an example of a addition, where a method adds two integers and returns an integer as an output. We will also discuss how to write test cases automatically for this method in JUnit by using the Parameterized.class. For those who are new to

Selenium CSS Selector Wildcard Example - Part 2

2011-06-16T18:42:00.000-07:00

In the previous post, we showed how to match an ID value by using wild cards in Selenium. In this post, we will provide some more methods that are available in Selenium to match tags with a specific pattern. On the same lines as of starts with type of matching, it is possible to match tags with a ends with a specific suffix or contains a specific pattern in its attribute value. Note that the

Selenium CSS Selector Wildcard Example

2011-06-16T18:23:00.000-07:00

Yesterday, when trying to get a dynamic count of number of fields for a Ruby on Rails application, I stumbled across a scenario where I had to match the ID value for a HTML tag by using a wildcard pattern. The requirement was to get a count of number of ID tags matching a specific pattern and then update the last of that tag with a user provided value. I tried several examples using CSS selectors

PNG to PDF Java Servlet Example - iText Tutorial

2011-06-15T02:42:00.000-07:00

In this tutorial, we will extend our JPG to PDF conversion servlet code, to support PNG to PDF conversion. The servlet will accept a user uploaded PNG image document and convert this to PDF and stream it back to the user in the browser.This tutorial refers to a standalone PNG to PDF conversion example provided in our blog earlier. It is advised to refer to the tutorial before proceeding with the

org.codehaus.groovy.grails.cli.support.GrailsStarter - SpringSource

2011-06-14T01:08:00.000-07:00

While trying to set up Spring Source to develop a Groovy on Grails application a developer may encounter a Java exception as shown below; java.lang.NoClassDefFoundError: org/codehaus/groovy/tools/RootLoader Caused by: java.lang.ClassNotFoundException: org.codehaus.groovy.tools.RootLoader at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(

Convert PNG to PDF iText Java Example Tutorial

2011-06-13T03:50:00.000-07:00

In this code example, we will provide a standalone Java class which will convert a PNG image to a PDF document, by using the iText Java API. This example is on the same lines as our BMP to PDF Conversion tutorial. The difference lies in the class used to read the input PNG image file. We will use the class com.itextpdf.text.pdf.codec.PngImage to accept a PNG image and return an object of type

BMP to PDF Java Servlet Example - iText Tutorial

2011-06-13T00:04:00.000-07:00

In this tutorial, we will extend the servlet code provided in the Gif to Pdf servlet tutorial, to support BMP to PDF conversion using iText library. The input to the servlet will be through a HTML form, where a user uploads a BMP file and the servlet will take care of converting the BMP image into a PDF document and stream it back to the browser. With this, the servlet code will be capable of

Convert BMP to PDF iText Java Example Tutorial

2011-06-12T22:44:00.001-07:00

In this iText image conversion tutorial, we will explain how to convert a bitmap (BMP) image file into a PDF document using iText Java API. This example would be driven with a standalone Java program, later we will provide a servlet integration example where a user uploaded bitmap picture would be changed to a PDF using a Java servlet.I will be using iText 5.1.0 for this example, if you are

Gem RemoteFetcher Fetch Error ECONNREFUSED Solution

2011-06-08T17:19:00.000-07:00

Well, you could be here because you tried installing a gem, when you are behind a proxy, either at home or at office and you got a nice error when trying to install as shown below; (I got this while installing Rails for JRuby, but you can get this error for any other gem)C:\jruby-1.6.2\samples>jruby -S gem install -y rails INFO: `gem install -y` is now default and will be removed INFO: use --

GIF to PDF Java Servlet Example - iText Tutorial

2011-06-08T02:18:00.000-07:00

In this post, we will explain how to convert a GIF image, uploaded from a JSP page, to a PDF document using the servlet example during our JPEG to PDF conversion. The User uploaded GIF file will be processed by a Java servlet and the servlet will stream the PDF file back to the user. I would strongly recommend to go through the JPEG to PDF conversion tutorial as the basic servlet code is taken

Animated Gif to PDF Conversion - Java iText Tutorial

2011-06-07T23:55:00.000-07:00

In the previous post, we tried converting an Animated GIF image into a PDF. The GIF image had two frames and iText was able to grab two frames as separate image objects and push them inside a PDF file. However, at the output we noticed that the GIF image's second frame was totally redundant as it contained only the changed portion due to GIF optimization. In such a case, you would only want to

Convert GIF to PDF iText Java Example Tutorial

2011-06-07T18:46:00.000-07:00

In this tutorial, we will discuss how to convert an animated GIF image into a PDF document using Java iText library. We need to make note of the fact that PDF does not support animated images by itself. Itext provides a class com.itextpdf.text.pdf.codec.GifImage which can be used to extract specific frames out of a GIF image to an Image object and then stamp the resulting Image object into a PDF

JPG to PDF Servlet Example Java iText Tutorial

2011-06-07T01:31:00.000-07:00

In this tutorial, we will extend the example provided earlier [that explained how to convert a Tiff Image to PDF file ] to accommodate a JPG to PDF conversion using iText and Servlets. We will be adding some additional code to the same example to achieve this convert operation. If you are keen to have a servlet code, that does only JPG to PDF conversion, you should consider clipping the servlet

+2 Maths Important Questions AA5- Part 2

2011-06-07T00:33:00.000-07:00

In this post, we present some sample 10 mark questions in +2 Mathematics subject. There are a total of 15 ten mark questions to be solved and practice these questions well from an examination angle. Post your answers or solution approach to these questions and share it with rest of the readers1) Solve the non-homogenous equations of three unknowns: x+y+2z=6; 3x+y-z=2;

+2 Maths Important Questions AA5- Part 1

2011-06-07T00:26:00.000-07:00

In this post, we provide the readers with some six mark questions in Mathematics for solving. There are totally 15 questions for solving,which are considered important from an examination angle. Take these questions are practice questions only, and prepare them well. You should also write the steps clearly to solve every question and must not jump steps in between. Share your answers with us in

Convert Tiff to PDF Java Servlet Example Tutorial

2011-06-06T16:55:00.000-07:00

In this tutorial, we will provide a Java Servlet that can accept a user uploaded Tiff Image file and convert this Tiff image to a PDF and render it back to the browser from where the request was placed.In order to write this servlet code, we would need a jsp page that can accept a file uploaded by the user. Once the uploaded image is submitted to the server, we will have to write some code at the

HSC +2 Maths Important Questions AA4 - Part 5

2011-06-06T02:05:00.000-07:00

This is final part of our 40 question collection in mathematics subject. For previous parts you should refer to the related post section at the bottom of this post. Post your answers to these questions in the comments section and share this post with the web. Alternatively, you can also follow our blog so that you never miss an update when a new question paper set is posted.Questions from 33-40

HSC +2 Maths Important Questions AA4 - Part 4

2011-06-06T02:02:00.000-07:00

In this blog post, we provide objective one mark questions from maths subject in AA4 series, questions from 25-32 are provided in this part. You should also refer to the related post section at the bottom of this post for more sample questions on HSC Maths taken from this series. Questions are taken from all chapters and this is a random mix of questions from our pool of question bank which

HSC +2 Maths Important Questions AA4 - Part 3

2011-06-06T01:54:00.000-07:00

Part 3 of AA4, +2 Mathematics Practice questions set, containing questions from 17 to 24 are provided below. You may wish to refer to the related post section at the bottom of this post to view other parts of this AA4 series.These questions are a random collection of questions and not aligned to the blue print format. However, they will give you a good practice from an examination angle and

HSC +2 Maths Important Questions AA4 - Part 2

2011-06-06T01:48:00.000-07:00

You are viewing part 2 of the collection of 40 questions in +2 Maths subject. (objective type, one mark questions). Go through the questions from 9-16 and post your answers to these questions. You may wish to refer to the related post section at the bottom of this post, to view other parts of this series. These questions are carefully prepared after studying the complete examination syllabus and

HSC +2 Maths Important Questions AA4 - Part 1

2011-06-06T01:43:00.000-07:00

In this new series, we present a collection of 40 one mark questions in +2 mathematics subject, divided into five parts of eight questions each. Students are advised to take these questions as practice questions only and solve them carefully as aligned to their subjects. Once solved, post your answers to these questions in the comments section of this blog post. This will help other students to