contactsunny

data-science-examples

A set of projects designed around the field of Data Science. Checkout http://blog.contactsunny.com/category/data-science for more.

DynamoDB-SpringBoot-POC

A simple Spring Boot command line runner application to illustrate the use of DynamoDB.

kafka-module

A simple Maven dependency module which integrates Kafka consumer and producer to your application.

Parquet_File_Writer_POC

This is a simple Java POC to create Parquet files This is a Spring Boot project.

SimpleKafkaExampleSpringBoot

A simple Spring Boot (Java) app which demonstrates Apache Kafka's producer and consumer APIs.

SparkHBaseConnectorPOC

SparkMongoConnectorPOC

A POC project to connect Apache Spark to MongoDB

sparkSql-UDF-POC

This is a simple Java program to illustrate the use of User Defined Functions (UDFs) in Apache SparkSql.

spring-kafka-test

A Spring (Java) project with the spring-kafka library added. This project could be used as a POC for the various features provided by the library.

SpringBoot_Hive_Connection_POC

Spring Boot project to demonstrate how to connect to Hive.

contactsunny/DynamoDB-SpringBoot-POC

A simple Spring Boot command line runner application to illustrate the use of DynamoDB.

contactsunny/SpringBoot_Hive_Connection_POC

Spring Boot project to demonstrate how to connect to Hive.

contactsunny/AmazonSQSProducerPOC

This is a simple Spring Boot project to send messages to an Amazon SQS queue.

contactsunny/ApacheDrillSpringBootPOC

This is a simple POC which demonstrates the use of Apache Drill to query data from various sources.

contactsunny/FileUploadDownloadSpringBootPOC

A simple Spring Boot application to demonstrate how to upload and download files.

contactsunny/InvokeLambdaFromAnotherLambdaPOC

A simple Java program to invoke an AWS Lambda function from another Lambda function.

contactsunny/SpringBootAmazonKinesisFirehoseProducerPOC

This is a simple Spring Boot CommandLine application to demonstrate how we can put a record to an Amazon Kinesis Firehose Delivery Stream.

contactsunny/AmazonSNSPublisherPOC

This is a simple Spring Boot project to publish messages to an Amazon SNS topic.

contactsunny/AmazonSQSConsumerPOC

This is a simple Spring Boot project to receive messages from an Amazon SQS queue.

contactsunny/MongoDBSpringBootEncryptionDecryptionPOC

This is a simple Spring Boot POC in which we try to understand how to use MongoDB cascading features provided by Spring Boot, to encrypt data before saving to MongoDB and decrypting it after fetching from MongoDB.

contactsunny/read-write-excel-files

A simple Java POC to read and write Microsoft Office Excel files (.xls, .xlsx).

contactsunny/RemoveStopWordsInJavaPOC

This is a simple Spring Boot project which removes stop words from a text file.

contactsunny/apache_airflow_poc

A POC to demonstrate how to work with Apache Airflow

contactsunny/AWS_Lambda_Java_DynamoDB_Trigger_Example

This is a simple AWS Lambda function in Java to demonstrate how a Lambda function can be triggered with a DynamoDB event.

contactsunny/AWS_Lambda_Java_S3_Trigger_Example

This is a simple AWS Lambda function in Java to demonstrate how a Lambda function can be triggered with an S3 event.

contactsunny/BinarySearchTree

This is a simple Java program to demonstrate how to create a binary search tree.

contactsunny/Couchbase_CRUD_POC

This is a simple Spring Boot application to demonstrate how to perform CRUD operations on a Couchbase database;

contactsunny/fuel-swiftui

An iOS app for the fuel records service

contactsunny/KSortedArray

This is a simple Java program to demonstrate how to sort an already k-sorted array.

contactsunny/MergeSort

This is a simple Java program to demonstrate how Merge Sort works.

contactsunny/Microservice_Demo_UserService

contactsunny/MongoDB_Sample_Data_Loader

A simple Spring Boot project to populate MongoDB collections with random, sample data.

contactsunny/MongoDB_Sort_SpringBoot_POC

A simple Java project to demonstrate how to write a MongoDB sort query in Java.

contactsunny/NormalizePhoneNumbersPOC

contactsunny/PojoEntityExtensionPOC

This is a simple project to demo how we can keep our POJO classes different from the entity classes.

contactsunny/QuickSort

This is a simple Java program to demonstrate how quick sort works.

contactsunny/ReverseOrderTraversalBinaryTree

This is a simple Java program to demonstrate how to perform a reverse traversal of a binary tree. In this project, I've written code for both post order and in order reverse traversals.

contactsunny/SelectionSort

This is a simple Java program to demonstrate how Selection Sort works.

contactsunny/spring-boot-api-docker-poc-maven

This project demonstrates how to Dockerize a Spring Boot API project.

contactsunny/SpringBootAmazonKinesisStreamProducerPOC

This is a simple Spring Boot CommandLine application to demonstrate how we can put a record to an Amazon Kinesis Data Stream.