Hi, There was a case where i had to encrypt the HTML output of the GSP before displaying it to user. There are a lot of ways to do it, but i wanted to make is as simple as possible. Hence here is the pattern i used: Note: This is just an example, […]
Have you ever wondered how to overload “plus” operator in Groovy ? It is as easy as adding toppings to your favourite pizza. Let me explain. Let us taka a class for Pizza: [java] @ToString class Pizza { String name List<Topping> toppings double price } [/java] And another for the Topping: [java] @ToString class […]
Recently in one of my project i had a requirement of identifying the class of a property of an object with object class and property name and then determining whether it’s an Enum class or not. I found an easy solution for this using Reflection API. Using Java Reflection you can inspect the fields (member […]
In almost all the applications that we work on, we have to transform elements of a collection in one way or the other. We can do it in different ways. Let there be a domain “Employee” with following attributes: [java] class Employee{ String firstName String lastName Double salary } [/java] And we have 5 Employees: […]
Hi, Suppose you have implemented some logic in your application which updates the Config at runtime. Now after you have updated the config, you should notify the plugins about configChanges such that they reload their configurations. This can be done by firing the onConfigChange Event of the plugins. Similarly you can also […]
Hi, In one of my grails project, i needed to show the comments on any wall post of linkedin through API. I used the Java wrapper to connect any linkedIn account with the grails application which can be seen here. But somehow this library was not working when we need to fetch comments from any […]
Spring security loads the roles of user from user role table based on all roles assigned to user and that role is application specific. But In my project i require to assign roles to user based on instance . So when the instance is changed roles should be changed .In grails we can overide the […]
Hi, In the previous blog we saw how to fetch twitter users based on some search criteria using the Twitter4j library, a java wrapper available for Twitter API calls. In the same grails project, i had the requirement to display the recent twitter followers of authenticated twitter accounts. Twitter4j library provides a way to get […]
Hi, In the previous blog we saw how to fetch tweets based on some search criteria using the Twitter4j, a java wrapper library available for Twitter API calls. In the same grails project, i had the requirement to search users based of their name or words. Twitter4j library provides a cool way to search users […]