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package com.anhtv08.springbootdemo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringBootDemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootDemoApplication.class, args);

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package com.anhtv08.springbootdemo.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @RequestMapping("/hello")
    public String hello(){

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//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//

package org.springframework.boot.autoconfigure;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;

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//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//

package org.springframework.boot.autoconfigure.data.elasticsearch;

import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedHashMap;

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.anhtv08</groupId>
        <artifactId>spring-tutorials</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.anhtv08</groupId>
    <artifactId>spring-tutorials</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>
    <parent>

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CASSANDRA_VERION=3.11
CASSANDRA_NODES=(
                CASSANDRA_1 \
                CASSANDRA_2 \
                CASSANDRA_3
               )  

# setup cassandra 3.11
# assume you have docker installed.

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keyspace: perftesting

keyspace_definition: 
  CREATE KEYSPACE perftesting WITH replication = { 'class': 'SimpleStrategy', 'replication_factor': 3};

table: users

table_definition:

  CREATE TABLE users (

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def lambda_handler(event, context):
    log.info(" evaluating tags of ec2 instance")
    if not event:
        log.info("event is not valid")
    else:
        evaluate_ec2_instance(ec2_client, event)

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def evaluate_ec2_instance(ec2_client, event):
    instance_id = event['detail']['instance-id']
    instance_state = event['detail']['state']

    '''
        only perform this evaluation rule when starting an new instance
        check if instance state is pending then try to perfrom evaluation 
    '''
    if instance_state != 'pending':
        log.info('current state : ' + instance_state)