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Setting Up AWS Code Pipeline

Preface

In my previous post I tried briefing about creating a multi-tenant SaaS platform and outlined the thought process and challenges. As a continuation to that post, here is one more about setting up the AWS code pipeline.

This might not be necessarily in sequence with the previous post and I am not writing it in any order. However, after a lot of brain storming and design decisions…

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#aws_code_pipeline

Multi-tenant SaaS Platform - Introduction

Multi-tenant SaaS Platform – Introduction

Preface

So, I was approached by a small group to help them create a Multi-tenant SaaS platform which will serve as a B2B solution in their area of business. Without wasting much time in the preface lets just try to jump into the real thing.

There are many parts to such a platform. However, it would be wise to not assume that the readers know about all these terms. Here is a small explanation…

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#application_design #real_project

Techie Me turned 2 today!

#tumblr birthday #tumblr milestone

Java 8 Date Time API Usage

Introduction

Every effort we put in to showcase the extent of Java 8 Date Time API usage leaves us only scratching the surface of it. This post walks through a couple of examples and some standard methods that can be helpful in daily use. Timezone aspects are not covered in this post. Refer to this post to for an introduction to Java 8 Date Time API.

Old And The New

Let us see how date formatting…

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#java #java1.8 #jls

Java 8 Date Time API

What ailed Date and Time handling in Java?

The existing java.util.Date and SimpleDateFormat are mutable and not thread-safe, more often than not, leading to concurrency issues for users. Having to deal with this overhead is not welcoming for novice developers. Inconsistent API (months starting at 1 while days start at 0), no ability to handle Time alone, no utilities like plus/minus dates lead to…

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#java 1.8 #java time #jls

Try With Resources in Java 7 and Above

Introduction

Try with Resources in Java 7 and above allows for automatic closing of resources that implement java.lang.AutoCloseable or the more familiar java.io.Closeable (which extends AutoCloseable)

Anyone through a basic Java course will be familiar with this block of code. Open a text file to write data and close it when done.

void writeToFileLegacy(String filename) throws IOException {…

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#1.7 #features #java #try-with-resources

Introduction to Python

Python is popular. Python is easy. This series starts with basics of Python and takes you through some advanced concepts. It is advised to have knowledge of some very basic concepts of programming before reading this series.

Why Python?

4G (4th generation) languages are the ones where you don’t have to write lower level syntax. Abstraction level is provided hiding details about hardware, memory…

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Injecting Prototype Beans in Singletons

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. In the previous posts,we talked about scopes of Spring beans. Now as there are many different scopes, the basic problem which arises is injecting prototype beans in singletons. We can also define this problem in a more general way,…

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#springframework

Understanding the Bean Scopes in Spring

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. In one of the previous posts, I introduced the concept of scopes for beans. This post is completely focused on explaining the bean scopes in Spring and their usages.

Bean Scopes in Spring

A scope can be considered as a logical…

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#springframework

Properties and PropertySources in Spring

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. All the modern enterprise level applications require external properties files and it is important to have a clean mechanism of using these properties in the application. Spring provides an abstraction for achieving the same in…

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#springframework

Resources and ResourceLoaders in Spring

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. An enterprise level application is found to deal with a lot of resources, both static and dynamic. For e.g. properties files, images, xmls etc. In this post we will discuss about resources and ResourceLoaders in Spring.

Resources…

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Understanding the ApplicationContext in Spring

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. In the previous post we discussed the BeanFactory in detail. Here we will try and put some more effort in understanding the ApplicationContext and its flavors.

Understanding the ApplicationContext

We have reached far enough and…

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#springframework

Understanding the BeanFactory - Spring

Understanding the BeanFactory – Spring

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. In the previous post we mentioned about the BeanFactory. Here we will try and put some more effort in understanding the BeanFactory. A deeper understanding of the BeanFactory will ease our journey further.

Understanding the…

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#springframework

Tips and Tricks of Dependency Injection in Spring

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. In this post, we will discuss few more tips and tricks of dependency injection in Spring.

There are different types of objects and primitive values which qualify to get injected into a bean. As a developer and architect, it is…

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#springframework

Setter Based Dependency Injection in Spring

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. As promised in the previous post, this post will help us understand the second form of dependency injections. Here I will introduce setter based dependency injection.

Setter Based Dependency Injection

There is another way of…

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#springframework

Constructor Argument Resolution - Constructor Based DI

Constructor Argument Resolution – Constructor Based DI

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. As promised in the previous post, this post will help us resolve different ambiguities in constructor argument resolution. We will also talk about various possible ways of resolving constructor arguments.

There are different…

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#springframework

Constructor Based Dependency Injection in Spring

Introduction

This is a series and it would make a lot of sense if read in a sequence. You can find all the posts under the heading “Spring Beginners to Professionals“. We now know a lot about Spring beans and in the last post we mentioned about the dependency injection. It precisely means, how to connect two beans when one bean is composed in another bean. So let us start with practical…

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#springframewrok

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