StevenACoffman

import java.util.*;

public class MineFieldMapper {
    public List<String> map(List<String> mineField) {
        if (mineField.size() == 3) {
            return Arrays.asList("1", "*", "1");
        }

        String s = mineField.get(0);

StevenACoffman

import java.util.AbstractMap.SimpleEntry;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;

class Balance {
  String hello = "hello";
  List<String> beginnings = Arrays.asList("[", "(", "{");
  Map<String, String> endingsToBeginnings = Collections.unmodifiableMap(Stream.of(
          new SimpleEntry<>("]", "["),

StevenACoffman

Notes from experienced React developers at Khan Academy and Symphono

Configuring the tooling for React is the biggest hurdle.

create react app is the easiest entry point to getting the tooling correct for a react app. You can eject later if you want advanced configuration.

npm install -g create-react-app

StevenACoffman

#!/bin/bash

#Jenkins provides:
#GIT_COMMIT like ce9a3c1404e8c91be604088670e93434c4253f03
#GIT_BRANCH like origin/master
#BUILD_URL like http://jenkins.test.cirrostratus.org/job/Article_View_c20n_Full_Non_Destructive_Full_Suite/1334/

# per https://wiki.jenkins-ci.org/display/JENKINS/GitHub+pull+request+builder+plugin
# The jenkins pull request builder plugin (if configured) will provide these:
#ghprbPullId

StevenACoffman

Code Reviews: A Controversial Policy

How I Will Perform Code Reviews

• We Code Review after each story, and I use them as a place to have discussions where we have the opportunity to learn from one another.

• I trust the other developers on my team, especially since they will have more context on their own work, so anything I suggest is merely a suggestion, and so I always "Approve" my github review. I give them the benefit of the doubt that if I point out something, it is more than likely I misunderstood.

• It is entirely reasonable for people to use their discretion to disagree with or defer my suggestions for improvement.

StevenACoffman

Browser Type	Clean	Clean	Suspect	Suspect
PerimeterX Mode	Monitor	Blocking	Monitor	Blocking
Excelsior Restarts	1	1?	2	3(+?)
PerimeterX Restarts	0	0?	1	0

StevenACoffman

These were some of the most work relevant talks that have publicly available presentaiton materials

Event Driven Architecture / Event Sourcing / CQRS / DDD

• A Crash Course on Building Microservice-based Architectures
• Fat Controller CQRS Diet
• Event Driven Architecture (Linked from above)

Lambda

• Building Serverless Applications in AWS Workshop
• Building “serverless” software with AWS Lambda

StevenACoffman

Event Sourcing/CQRS/DDD vs. Stream processing at scale

	Enterprise SW		Internet Companies
biggest problem:	complexity of domain	biggest problem:	volume of data
leads to:	business logic	leads to:	complexity of data infrastructure
solution:	Event Sourcing	solution:	Stream Processing

From Martin Kleppman's Event Sourcing and Stream Processing at Scale from Domain-Driven Design Europe 2016 presentation

Stream Processing, Event Sourcing, Reactive, CEP... and making sense of it all

StevenACoffman

This is just a picture of this link from Feb 4, 2017

NPM Charts

StevenACoffman

#!/usr/bin/env python
import boto3
from datetime import datetime
import json
import sys
import re


def json_serial(obj):
    """JSON serializer for objects not serializable by default json code"""