Evgeny Klementyev liebsterkamerad

The introduction to Reactive Programming you've been missing

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	# SPDX-License-Identifier: MIT
	# Copyright (c) 2021 David Lechner <[email protected]>

	# A program for LEGO MINDSTORMS Robot Inventor - Gelo

	# Developed using MINDSTORMS App v1.3.4 (10.1.0), hub firmware v1.2.01.0103

	# Building instructions: https://www.lego.com/cdn/product-assets/product.bi.additional.main.pdf/51515_Gelo.pdf
	# Hub API: https://lego.github.io/MINDSTORMS-Robot-Inventor-hub-API/

	private static void checkTreesForMissingDefinitions(Map<String, String> glossary) {

	FinancialTrees.getTrees(false).values().stream() // Map<IndustryTemplate, Map<FinancialGroup, FinancialTree>>
	.map(Map::values) // Stream<Collection<FinancialTree>>
	.flatMap(Collection::stream) // Stream<FinancialTree>
	.map(FinancialTree::getAllChildren) // Stream<List<FinancialTreeNode>> Get nodes fron tree as a List<Node>
	.flatMap(List::stream) // Stream<FinancialTreeNode>
	.map(FinancialTreeNode::getField) // Stream<FinField>
	.distinct() // remove duplicated fields
	.filter(Objects::nonNull) // remove null objects

	#!/bin/bash -e
	# wait-for-postgres.sh
	# Adapted from https://docs.docker.com/compose/startup-order/

	# Expects the necessary PG* variables.

	until psql -c '\l'; do
	echo >&2 "$(date +%Y%m%dt%H%M%S) Postgres is unavailable - sleeping"
	sleep 1
	done